diff --git a/thirdparty/mbedtls/include/mbedtls/asn1write.h b/thirdparty/mbedtls/include/mbedtls/asn1write.h
index 44afae0e5..5da7654bb 100644
--- a/thirdparty/mbedtls/include/mbedtls/asn1write.h
+++ b/thirdparty/mbedtls/include/mbedtls/asn1write.h
@@ -90,7 +90,7 @@ int mbedtls_asn1_write_raw_buffer( unsigned char **p, unsigned char *start,
 
 #if defined(MBEDTLS_BIGNUM_C)
 /**
- * \brief           Write a arbitrary-precision number (#MBEDTLS_ASN1_INTEGER)
+ * \brief           Write an arbitrary-precision number (#MBEDTLS_ASN1_INTEGER)
  *                  in ASN.1 format.
  *
  * \note            This function works backwards in data buffer.
diff --git a/thirdparty/mbedtls/include/mbedtls/bignum.h b/thirdparty/mbedtls/include/mbedtls/bignum.h
index dd594c512..c61db82c6 100644
--- a/thirdparty/mbedtls/include/mbedtls/bignum.h
+++ b/thirdparty/mbedtls/include/mbedtls/bignum.h
@@ -182,6 +182,20 @@
     #endif /* !MBEDTLS_NO_UDBL_DIVISION */
 #endif /* !MBEDTLS_HAVE_INT64 */
 
+/** \typedef mbedtls_mpi_uint
+ * \brief The type of machine digits in a bignum, called _limbs_.
+ *
+ * This is always an unsigned integer type with no padding bits. The size
+ * is platform-dependent.
+ */
+
+/** \typedef mbedtls_mpi_sint
+ * \brief The signed type corresponding to #mbedtls_mpi_uint.
+ *
+ * This is always a signed integer type with no padding bits. The size
+ * is platform-dependent.
+ */
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -191,9 +205,27 @@ extern "C" {
  */
 typedef struct mbedtls_mpi
 {
-    int s;              /*!<  Sign: -1 if the mpi is negative, 1 otherwise */
-    size_t n;           /*!<  total # of limbs  */
-    mbedtls_mpi_uint *p;          /*!<  pointer to limbs  */
+    /** Sign: -1 if the mpi is negative, 1 otherwise.
+     *
+     * The number 0 must be represented with `s = +1`. Although many library
+     * functions treat all-limbs-zero as equivalent to a valid representation
+     * of 0 regardless of the sign bit, there are exceptions, so bignum
+     * functions and external callers must always set \c s to +1 for the
+     * number zero.
+     *
+     * Note that this implies that calloc() or `... = {0}` does not create
+     * a valid MPI representation. You must call mbedtls_mpi_init().
+     */
+    int s;
+
+    /** Total number of limbs in \c p.  */
+    size_t n;
+
+    /** Pointer to limbs.
+     *
+     * This may be \c NULL if \c n is 0.
+     */
+    mbedtls_mpi_uint *p;
 }
 mbedtls_mpi;
 
@@ -280,7 +312,7 @@ void mbedtls_mpi_swap( mbedtls_mpi *X, mbedtls_mpi *Y );
  * \param Y        The MPI to be assigned from. This must point to an
  *                 initialized MPI.
  * \param assign   The condition deciding whether to perform the
- *                 assignment or not. Possible values:
+ *                 assignment or not. Must be either 0 or 1:
  *                 * \c 1: Perform the assignment `X = Y`.
  *                 * \c 0: Keep the original value of \p X.
  *
@@ -291,6 +323,10 @@ void mbedtls_mpi_swap( mbedtls_mpi *X, mbedtls_mpi *Y );
  *                 information through branch prediction and/or memory access
  *                 patterns analysis).
  *
+ * \warning        If \p assign is neither 0 nor 1, the result of this function
+ *                 is indeterminate, and the resulting value in \p X might be
+ *                 neither its original value nor the value in \p Y.
+ *
  * \return         \c 0 if successful.
  * \return         #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed.
  * \return         Another negative error code on other kinds of failure.
@@ -303,24 +339,28 @@ int mbedtls_mpi_safe_cond_assign( mbedtls_mpi *X, const mbedtls_mpi *Y, unsigned
  *
  * \param X        The first MPI. This must be initialized.
  * \param Y        The second MPI. This must be initialized.
- * \param assign   The condition deciding whether to perform
- *                 the swap or not. Possible values:
+ * \param swap     The condition deciding whether to perform
+ *                 the swap or not. Must be either 0 or 1:
  *                 * \c 1: Swap the values of \p X and \p Y.
  *                 * \c 0: Keep the original values of \p X and \p Y.
  *
  * \note           This function is equivalent to
- *                      if( assign ) mbedtls_mpi_swap( X, Y );
+ *                      if( swap ) mbedtls_mpi_swap( X, Y );
  *                 except that it avoids leaking any information about whether
- *                 the assignment was done or not (the above code may leak
+ *                 the swap was done or not (the above code may leak
  *                 information through branch prediction and/or memory access
  *                 patterns analysis).
  *
+ * \warning        If \p swap is neither 0 nor 1, the result of this function
+ *                 is indeterminate, and both \p X and \p Y might end up with
+ *                 values different to either of the original ones.
+ *
  * \return         \c 0 if successful.
  * \return         #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed.
  * \return         Another negative error code on other kinds of failure.
  *
  */
-int mbedtls_mpi_safe_cond_swap( mbedtls_mpi *X, mbedtls_mpi *Y, unsigned char assign );
+int mbedtls_mpi_safe_cond_swap( mbedtls_mpi *X, mbedtls_mpi *Y, unsigned char swap );
 
 /**
  * \brief          Store integer value in MPI.
@@ -753,11 +793,11 @@ int mbedtls_mpi_mul_int( mbedtls_mpi *X, const mbedtls_mpi *A,
  *
  * \param Q        The destination MPI for the quotient.
  *                 This may be \c NULL if the value of the
- *                 quotient is not needed.
+ *                 quotient is not needed. This must not alias A or B.
  * \param R        The destination MPI for the remainder value.
  *                 This may be \c NULL if the value of the
- *                 remainder is not needed.
- * \param A        The dividend. This must point to an initialized MPi.
+ *                 remainder is not needed. This must not alias A or B.
+ * \param A        The dividend. This must point to an initialized MPI.
  * \param B        The divisor. This must point to an initialized MPI.
  *
  * \return         \c 0 if successful.
@@ -774,10 +814,10 @@ int mbedtls_mpi_div_mpi( mbedtls_mpi *Q, mbedtls_mpi *R, const mbedtls_mpi *A,
  *
  * \param Q        The destination MPI for the quotient.
  *                 This may be \c NULL if the value of the
- *                 quotient is not needed.
+ *                 quotient is not needed.  This must not alias A.
  * \param R        The destination MPI for the remainder value.
  *                 This may be \c NULL if the value of the
- *                 remainder is not needed.
+ *                 remainder is not needed.  This must not alias A.
  * \param A        The dividend. This must point to an initialized MPi.
  * \param b        The divisor.
  *
@@ -832,6 +872,7 @@ int mbedtls_mpi_mod_int( mbedtls_mpi_uint *r, const mbedtls_mpi *A,
  * \brief          Perform a sliding-window exponentiation: X = A^E mod N
  *
  * \param X        The destination MPI. This must point to an initialized MPI.
+ *                 This must not alias E or N.
  * \param A        The base of the exponentiation.
  *                 This must point to an initialized MPI.
  * \param E        The exponent MPI. This must point to an initialized MPI.
diff --git a/thirdparty/mbedtls/include/mbedtls/bn_mul.h b/thirdparty/mbedtls/include/mbedtls/bn_mul.h
index 31137cd4c..a3fc36381 100644
--- a/thirdparty/mbedtls/include/mbedtls/bn_mul.h
+++ b/thirdparty/mbedtls/include/mbedtls/bn_mul.h
@@ -94,13 +94,29 @@
 #if defined(__GNUC__) && \
     ( !defined(__ARMCC_VERSION) || __ARMCC_VERSION >= 6000000 )
 
+/*
+ * GCC < 5.0 treated the x86 ebx (which is used for the GOT) as a
+ * fixed reserved register when building as PIC, leading to errors
+ * like: bn_mul.h:46:13: error: PIC register clobbered by 'ebx' in 'asm'
+ *
+ * This is fixed by an improved register allocator in GCC 5+. From the
+ * release notes:
+ * Register allocation improvements: Reuse of the PIC hard register,
+ * instead of using a fixed register, was implemented on x86/x86-64
+ * targets. This improves generated PIC code performance as more hard
+ * registers can be used.
+ */
+#if defined(__GNUC__) && __GNUC__ < 5 && defined(__PIC__)
+#define MULADDC_CANNOT_USE_EBX
+#endif
+
 /*
  * Disable use of the i386 assembly code below if option -O0, to disable all
  * compiler optimisations, is passed, detected with __OPTIMIZE__
  * This is done as the number of registers used in the assembly code doesn't
  * work with the -O0 option.
  */
-#if defined(__i386__) && defined(__OPTIMIZE__)
+#if defined(__i386__) && defined(__OPTIMIZE__) && !defined(MULADDC_CANNOT_USE_EBX)
 
 #define MULADDC_INIT                        \
     asm(                                    \
@@ -563,10 +579,20 @@
         "andi  r7,   r6, 0xffff \n\t"   \
         "bsrli r6,   r6, 16     \n\t"
 
-#define MULADDC_CORE                    \
+#if(__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
+#define MULADDC_LHUI                    \
+        "lhui  r9,   r3,   0    \n\t"   \
+        "addi  r3,   r3,   2    \n\t"   \
+        "lhui  r8,   r3,   0    \n\t"
+#else
+#define MULADDC_LHUI                    \
         "lhui  r8,   r3,   0    \n\t"   \
         "addi  r3,   r3,   2    \n\t"   \
-        "lhui  r9,   r3,   0    \n\t"   \
+        "lhui  r9,   r3,   0    \n\t"
+#endif
+
+#define MULADDC_CORE                    \
+        MULADDC_LHUI                    \
         "addi  r3,   r3,   2    \n\t"   \
         "mul   r10,  r9,  r6    \n\t"   \
         "mul   r11,  r8,  r7    \n\t"   \
diff --git a/thirdparty/mbedtls/include/mbedtls/check_config.h b/thirdparty/mbedtls/include/mbedtls/check_config.h
index be5c548e5..7ae1ff94d 100644
--- a/thirdparty/mbedtls/include/mbedtls/check_config.h
+++ b/thirdparty/mbedtls/include/mbedtls/check_config.h
@@ -525,6 +525,20 @@
 #error "MBEDTLS_PLATFORM_SNPRINTF_MACRO and MBEDTLS_PLATFORM_STD_SNPRINTF/MBEDTLS_PLATFORM_SNPRINTF_ALT cannot be defined simultaneously"
 #endif
 
+#if defined(MBEDTLS_PLATFORM_VSNPRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C)
+#error "MBEDTLS_PLATFORM_VSNPRINTF_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_VSNPRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C)
+#error "MBEDTLS_PLATFORM_VSNPRINTF_MACRO defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_VSNPRINTF_MACRO) &&\
+    ( defined(MBEDTLS_PLATFORM_STD_VSNPRINTF) ||\
+        defined(MBEDTLS_PLATFORM_VSNPRINTF_ALT) )
+#error "MBEDTLS_PLATFORM_VSNPRINTF_MACRO and MBEDTLS_PLATFORM_STD_VSNPRINTF/MBEDTLS_PLATFORM_VSNPRINTF_ALT cannot be defined simultaneously"
+#endif
+
 #if defined(MBEDTLS_PLATFORM_STD_MEM_HDR) &&\
     !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS)
 #error "MBEDTLS_PLATFORM_STD_MEM_HDR defined, but not all prerequisites"
@@ -650,10 +664,9 @@
         MBEDTLS_ECDSA_C requires MBEDTLS_PK_WRITE_C to be defined."
 #endif
 
-#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PKCS1_V15) && \
-    !defined(MBEDTLS_PK_WRITE_C) && defined(MBEDTLS_PSA_CRYPTO_C)
-#error "MBEDTLS_PSA_CRYPTO_C, MBEDTLS_RSA_C and  MBEDTLS_PKCS1_V15 defined, \
-        but not all prerequisites"
+#if defined(MBEDTLS_PSA_CRYPTO_C) && defined(MBEDTLS_RSA_C) && \
+    !( defined(MBEDTLS_PK_PARSE_C) && defined(MBEDTLS_PK_WRITE_C) )
+#error "MBEDTLS_PSA_CRYPTO_C with MBEDTLS_RSA_C requires MBEDTLS_PK_PARSE_C and MBEDTLS_PK_WRITE_C"
 #endif
 
 #if defined(MBEDTLS_RSA_C) && ( !defined(MBEDTLS_BIGNUM_C) ||         \
@@ -812,6 +825,11 @@
 #error "MBEDTLS_SSL_TICKET_C defined, but not all prerequisites"
 #endif
 
+#if defined(MBEDTLS_SSL_TICKET_C) && \
+    !( defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CCM_C) || defined(MBEDTLS_CHACHAPOLY_C) )
+#error "MBEDTLS_SSL_TICKET_C defined, but not all prerequisites"
+#endif
+
 #if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) && \
     !defined(MBEDTLS_SSL_PROTO_SSL3) && !defined(MBEDTLS_SSL_PROTO_TLS1)
 #error "MBEDTLS_SSL_CBC_RECORD_SPLITTING defined, but not all prerequisites"
@@ -926,6 +944,10 @@
 #error "MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH defined, but not all prerequisites"
 #endif
 
+#if defined(MBEDTLS_SSL_CONTEXT_SERIALIZATION) && !( defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CCM_C) || defined(MBEDTLS_CHACHAPOLY_C) )
+#error "MBEDTLS_SSL_CONTEXT_SERIALIZATION defined, but not all prerequisites"
+#endif
+
 /*
  * Avoid warning from -pedantic. This is a convenient place for this
  * workaround since this is included by every single file before the
diff --git a/thirdparty/mbedtls/include/mbedtls/config.h b/thirdparty/mbedtls/include/mbedtls/config.h
index 1cd6eb663..61db79362 100644
--- a/thirdparty/mbedtls/include/mbedtls/config.h
+++ b/thirdparty/mbedtls/include/mbedtls/config.h
@@ -1329,7 +1329,7 @@
  * Include backtrace information with each allocated block.
  *
  * Requires: MBEDTLS_MEMORY_BUFFER_ALLOC_C
- *           GLIBC-compatible backtrace() an backtrace_symbols() support
+ *           GLIBC-compatible backtrace() and backtrace_symbols() support
  *
  * Uncomment this macro to include backtrace information
  */
@@ -1620,6 +1620,8 @@
  * saved after the handshake to allow for more efficient serialization, so if
  * you don't need this feature you'll save RAM by disabling it.
  *
+ * Requires: MBEDTLS_GCM_C or MBEDTLS_CCM_C or MBEDTLS_CHACHAPOLY_C
+ *
  * Comment to disable the context serialization APIs.
  */
 #define MBEDTLS_SSL_CONTEXT_SERIALIZATION
@@ -2425,7 +2427,7 @@
  *      MBEDTLS_TLS_PSK_WITH_RC4_128_SHA
  *
  * \warning   ARC4 is considered a weak cipher and its use constitutes a
- *            security risk. If possible, we recommend avoidng dependencies on
+ *            security risk. If possible, we recommend avoiding dependencies on
  *            it, and considering stronger ciphers instead.
  *
  */
@@ -3030,7 +3032,7 @@
  *
  * \note See also our Knowledge Base article about porting to a new
  * environment:
- * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS
+ * https://mbed-tls.readthedocs.io/en/latest/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS
  *
  * Module:  library/net_sockets.c
  *
@@ -3400,7 +3402,8 @@
  * Module:  library/ssl_ticket.c
  * Caller:
  *
- * Requires: MBEDTLS_CIPHER_C
+ * Requires: MBEDTLS_CIPHER_C &&
+ *           ( MBEDTLS_GCM_C || MBEDTLS_CCM_C || MBEDTLS_CHACHAPOLY_C )
  */
 #define MBEDTLS_SSL_TICKET_C
 
@@ -3456,7 +3459,7 @@
  * contexts are not shared between threads. If you do intend to use contexts
  * between threads, you will need to enable this layer to prevent race
  * conditions. See also our Knowledge Base article about threading:
- * https://tls.mbed.org/kb/development/thread-safety-and-multi-threading
+ * https://mbed-tls.readthedocs.io/en/latest/kb/development/thread-safety-and-multi-threading
  *
  * Module:  library/threading.c
  *
@@ -3488,7 +3491,7 @@
  *
  * \note See also our Knowledge Base article about porting to a new
  * environment:
- * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS
+ * https://mbed-tls.readthedocs.io/en/latest/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS
  *
  * Module:  library/timing.c
  * Caller:  library/havege.c
diff --git a/thirdparty/mbedtls/include/mbedtls/ecdsa.h b/thirdparty/mbedtls/include/mbedtls/ecdsa.h
index 264a638bb..118f7cedb 100644
--- a/thirdparty/mbedtls/include/mbedtls/ecdsa.h
+++ b/thirdparty/mbedtls/include/mbedtls/ecdsa.h
@@ -309,10 +309,8 @@ int mbedtls_ecdsa_sign_det_ext( mbedtls_ecp_group *grp, mbedtls_mpi *r,
  *                  This must be initialized.
  *
  * \return          \c 0 on success.
- * \return          #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if the signature
- *                  is invalid.
  * \return          An \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_MPI_XXX
- *                  error code on failure for any other reason.
+ *                  error code on failure.
  */
 int mbedtls_ecdsa_verify( mbedtls_ecp_group *grp,
                           const unsigned char *buf, size_t blen,
diff --git a/thirdparty/mbedtls/include/mbedtls/md.h b/thirdparty/mbedtls/include/mbedtls/md.h
index 84fafd2ac..9cea40a89 100644
--- a/thirdparty/mbedtls/include/mbedtls/md.h
+++ b/thirdparty/mbedtls/include/mbedtls/md.h
@@ -215,7 +215,7 @@ MBEDTLS_CHECK_RETURN_TYPICAL
 int mbedtls_md_setup( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info, int hmac );
 
 /**
- * \brief           This function clones the state of an message-digest
+ * \brief           This function clones the state of a message-digest
  *                  context.
  *
  * \note            You must call mbedtls_md_setup() on \c dst before calling
diff --git a/thirdparty/mbedtls/include/mbedtls/platform.h b/thirdparty/mbedtls/include/mbedtls/platform.h
index 06dd192ea..eaf5122be 100644
--- a/thirdparty/mbedtls/include/mbedtls/platform.h
+++ b/thirdparty/mbedtls/include/mbedtls/platform.h
@@ -11,6 +11,13 @@
  *        implementations of these functions, or implementations specific to
  *        their platform, which can be statically linked to the library or
  *        dynamically configured at runtime.
+ *
+ *        When all compilation options related to platform abstraction are
+ *        disabled, this header just defines `mbedtls_xxx` function names
+ *        as aliases to the standard `xxx` function.
+ *
+ *        Most modules in the library and example programs are expected to
+ *        include this header.
  */
 /*
  *  Copyright The Mbed TLS Contributors
diff --git a/thirdparty/mbedtls/include/mbedtls/ripemd160.h b/thirdparty/mbedtls/include/mbedtls/ripemd160.h
index 63270d123..f890aefae 100644
--- a/thirdparty/mbedtls/include/mbedtls/ripemd160.h
+++ b/thirdparty/mbedtls/include/mbedtls/ripemd160.h
@@ -74,7 +74,7 @@ void mbedtls_ripemd160_init( mbedtls_ripemd160_context *ctx );
 void mbedtls_ripemd160_free( mbedtls_ripemd160_context *ctx );
 
 /**
- * \brief          Clone (the state of) an RIPEMD-160 context
+ * \brief          Clone (the state of) a RIPEMD-160 context
  *
  * \param dst      The destination context
  * \param src      The context to be cloned
diff --git a/thirdparty/mbedtls/include/mbedtls/rsa.h b/thirdparty/mbedtls/include/mbedtls/rsa.h
index 062df73aa..8559f67bb 100644
--- a/thirdparty/mbedtls/include/mbedtls/rsa.h
+++ b/thirdparty/mbedtls/include/mbedtls/rsa.h
@@ -491,7 +491,7 @@ int mbedtls_rsa_check_pubkey( const mbedtls_rsa_context *ctx );
  *             the current function does not have access to them,
  *             and therefore cannot check them. See mbedtls_rsa_complete().
  *             If you want to check the consistency of the entire
- *             content of an PKCS1-encoded RSA private key, for example, you
+ *             content of a PKCS1-encoded RSA private key, for example, you
  *             should use mbedtls_rsa_validate_params() before setting
  *             up the RSA context.
  *             Additionally, if the implementation performs empirical checks,
diff --git a/thirdparty/mbedtls/include/mbedtls/ssl.h b/thirdparty/mbedtls/include/mbedtls/ssl.h
index 5064ec568..aecac93f3 100644
--- a/thirdparty/mbedtls/include/mbedtls/ssl.h
+++ b/thirdparty/mbedtls/include/mbedtls/ssl.h
@@ -624,7 +624,7 @@ typedef int mbedtls_ssl_recv_t( void *ctx,
  * \param ctx      Context for the receive callback (typically a file descriptor)
  * \param buf      Buffer to write the received data to
  * \param len      Length of the receive buffer
- * \param timeout  Maximum nomber of millisecondes to wait for data
+ * \param timeout  Maximum number of milliseconds to wait for data
  *                 0 means no timeout (potentially waiting forever)
  *
  * \return         The callback must return the number of bytes received,
@@ -652,7 +652,7 @@ typedef int mbedtls_ssl_recv_timeout_t( void *ctx,
  *                 for the associated \c mbedtls_ssl_get_timer_t callback to
  *                 return correct information.
  *
- * \note           If using a event-driven style of programming, an event must
+ * \note           If using an event-driven style of programming, an event must
  *                 be generated when the final delay is passed. The event must
  *                 cause a call to \c mbedtls_ssl_handshake() with the proper
  *                 SSL context to be scheduled. Care must be taken to ensure
@@ -2000,7 +2000,7 @@ int mbedtls_ssl_check_record( mbedtls_ssl_context const *ssl,
  *                 here, except if using an event-driven style.
  *
  * \note           See also the "DTLS tutorial" article in our knowledge base.
- *                 https://tls.mbed.org/kb/how-to/dtls-tutorial
+ *                 https://mbed-tls.readthedocs.io/en/latest/kb/how-to/dtls-tutorial
  */
 void mbedtls_ssl_set_timer_cb( mbedtls_ssl_context *ssl,
                                void *p_timer,
diff --git a/thirdparty/mbedtls/include/mbedtls/ssl_internal.h b/thirdparty/mbedtls/include/mbedtls/ssl_internal.h
index 46ade67b9..77ad75547 100644
--- a/thirdparty/mbedtls/include/mbedtls/ssl_internal.h
+++ b/thirdparty/mbedtls/include/mbedtls/ssl_internal.h
@@ -782,7 +782,7 @@ struct mbedtls_ssl_transform
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
     uint8_t in_cid_len;
     uint8_t out_cid_len;
-    unsigned char in_cid [ MBEDTLS_SSL_CID_OUT_LEN_MAX ];
+    unsigned char in_cid [ MBEDTLS_SSL_CID_IN_LEN_MAX ];
     unsigned char out_cid[ MBEDTLS_SSL_CID_OUT_LEN_MAX ];
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
 
diff --git a/thirdparty/mbedtls/include/mbedtls/version.h b/thirdparty/mbedtls/include/mbedtls/version.h
index 44adcbfe0..b3b441d46 100644
--- a/thirdparty/mbedtls/include/mbedtls/version.h
+++ b/thirdparty/mbedtls/include/mbedtls/version.h
@@ -38,16 +38,16 @@
  */
 #define MBEDTLS_VERSION_MAJOR  2
 #define MBEDTLS_VERSION_MINOR  28
-#define MBEDTLS_VERSION_PATCH  1
+#define MBEDTLS_VERSION_PATCH  2
 
 /**
  * The single version number has the following structure:
  *    MMNNPP00
  *    Major version | Minor version | Patch version
  */
-#define MBEDTLS_VERSION_NUMBER         0x021C0100
-#define MBEDTLS_VERSION_STRING         "2.28.1"
-#define MBEDTLS_VERSION_STRING_FULL    "mbed TLS 2.28.1"
+#define MBEDTLS_VERSION_NUMBER         0x021C0200
+#define MBEDTLS_VERSION_STRING         "2.28.2"
+#define MBEDTLS_VERSION_STRING_FULL    "mbed TLS 2.28.2"
 
 #if defined(MBEDTLS_VERSION_C)
 
diff --git a/thirdparty/mbedtls/library/aes.c b/thirdparty/mbedtls/library/aes.c
index 03d8b7ea6..74ea2672b 100644
--- a/thirdparty/mbedtls/library/aes.c
+++ b/thirdparty/mbedtls/library/aes.c
@@ -40,14 +40,7 @@
 #include "mbedtls/aesni.h"
 #endif
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #if !defined(MBEDTLS_AES_ALT)
 
@@ -1170,7 +1163,7 @@ int mbedtls_aes_crypt_xts( mbedtls_aes_xts_context *ctx,
         {
             /* We are on the last block in a decrypt operation that has
              * leftover bytes, so we need to use the next tweak for this block,
-             * and this tweak for the lefover bytes. Save the current tweak for
+             * and this tweak for the leftover bytes. Save the current tweak for
              * the leftovers and then update the current tweak for use on this,
              * the last full block. */
             memcpy( prev_tweak, tweak, sizeof( tweak ) );
@@ -1770,7 +1763,8 @@ int mbedtls_aes_self_test( int verbose )
     unsigned char key[32];
     unsigned char buf[64];
     const unsigned char *aes_tests;
-#if defined(MBEDTLS_CIPHER_MODE_CBC) || defined(MBEDTLS_CIPHER_MODE_CFB)
+#if defined(MBEDTLS_CIPHER_MODE_CBC) || defined(MBEDTLS_CIPHER_MODE_CFB) || \
+    defined(MBEDTLS_CIPHER_MODE_OFB)
     unsigned char iv[16];
 #endif
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
diff --git a/thirdparty/mbedtls/library/arc4.c b/thirdparty/mbedtls/library/arc4.c
index b34dc5e75..dcc13d539 100644
--- a/thirdparty/mbedtls/library/arc4.c
+++ b/thirdparty/mbedtls/library/arc4.c
@@ -31,14 +31,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #if !defined(MBEDTLS_ARC4_ALT)
 
diff --git a/thirdparty/mbedtls/library/aria.c b/thirdparty/mbedtls/library/aria.c
index bc05c4a31..5e52eea91 100644
--- a/thirdparty/mbedtls/library/aria.c
+++ b/thirdparty/mbedtls/library/aria.c
@@ -31,24 +31,12 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #if !defined(MBEDTLS_ARIA_ALT)
 
 #include "mbedtls/platform_util.h"
 
-#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
-    !defined(inline) && !defined(__cplusplus)
-#define inline __inline
-#endif
-
 /* Parameter validation macros */
 #define ARIA_VALIDATE_RET( cond )                                       \
     MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_ARIA_BAD_INPUT_DATA )
@@ -895,15 +883,17 @@ static const uint8_t aria_test2_ctr_ct[3][48] =         // CTR ciphertext
 };
 #endif /* MBEDTLS_CIPHER_MODE_CFB */
 
-#define ARIA_SELF_TEST_IF_FAIL              \
-        {                                   \
-            if( verbose )                   \
-                mbedtls_printf( "failed\n" );       \
-            goto exit;                              \
-        } else {                            \
-            if( verbose )                   \
-                mbedtls_printf( "passed\n" );       \
-        }
+#define ARIA_SELF_TEST_ASSERT( cond )                   \
+        do {                                            \
+            if( cond ) {                                \
+                if( verbose )                           \
+                    mbedtls_printf( "failed\n" );       \
+                goto exit;                              \
+            } else {                                    \
+                if( verbose )                           \
+                    mbedtls_printf( "passed\n" );       \
+            }                                           \
+        } while( 0 )
 
 /*
  * Checkup routine
@@ -937,16 +927,18 @@ int mbedtls_aria_self_test( int verbose )
             mbedtls_printf( "  ARIA-ECB-%d (enc): ", 128 + 64 * i );
         mbedtls_aria_setkey_enc( &ctx, aria_test1_ecb_key, 128 + 64 * i );
         mbedtls_aria_crypt_ecb( &ctx, aria_test1_ecb_pt, blk );
-        if( memcmp( blk, aria_test1_ecb_ct[i], MBEDTLS_ARIA_BLOCKSIZE ) != 0 )
-            ARIA_SELF_TEST_IF_FAIL;
+        ARIA_SELF_TEST_ASSERT(
+                memcmp( blk, aria_test1_ecb_ct[i], MBEDTLS_ARIA_BLOCKSIZE )
+                != 0 );
 
         /* test ECB decryption */
         if( verbose )
             mbedtls_printf( "  ARIA-ECB-%d (dec): ", 128 + 64 * i );
         mbedtls_aria_setkey_dec( &ctx, aria_test1_ecb_key, 128 + 64 * i );
         mbedtls_aria_crypt_ecb( &ctx, aria_test1_ecb_ct[i], blk );
-        if( memcmp( blk, aria_test1_ecb_pt, MBEDTLS_ARIA_BLOCKSIZE ) != 0 )
-            ARIA_SELF_TEST_IF_FAIL;
+        ARIA_SELF_TEST_ASSERT(
+                memcmp( blk, aria_test1_ecb_pt, MBEDTLS_ARIA_BLOCKSIZE )
+                != 0 );
     }
     if( verbose )
         mbedtls_printf( "\n" );
@@ -965,8 +957,8 @@ int mbedtls_aria_self_test( int verbose )
         memset( buf, 0x55, sizeof( buf ) );
         mbedtls_aria_crypt_cbc( &ctx, MBEDTLS_ARIA_ENCRYPT, 48, iv,
             aria_test2_pt, buf );
-        if( memcmp( buf, aria_test2_cbc_ct[i], 48 ) != 0 )
-            ARIA_SELF_TEST_IF_FAIL;
+        ARIA_SELF_TEST_ASSERT( memcmp( buf, aria_test2_cbc_ct[i], 48 )
+                != 0 );
 
         /* Test CBC decryption */
         if( verbose )
@@ -976,8 +968,7 @@ int mbedtls_aria_self_test( int verbose )
         memset( buf, 0xAA, sizeof( buf ) );
         mbedtls_aria_crypt_cbc( &ctx, MBEDTLS_ARIA_DECRYPT, 48, iv,
             aria_test2_cbc_ct[i], buf );
-        if( memcmp( buf, aria_test2_pt, 48 ) != 0 )
-            ARIA_SELF_TEST_IF_FAIL;
+        ARIA_SELF_TEST_ASSERT( memcmp( buf, aria_test2_pt, 48 ) != 0 );
     }
     if( verbose )
         mbedtls_printf( "\n" );
@@ -996,8 +987,7 @@ int mbedtls_aria_self_test( int verbose )
         j = 0;
         mbedtls_aria_crypt_cfb128( &ctx, MBEDTLS_ARIA_ENCRYPT, 48, &j, iv,
             aria_test2_pt, buf );
-        if( memcmp( buf, aria_test2_cfb_ct[i], 48 ) != 0 )
-            ARIA_SELF_TEST_IF_FAIL;
+        ARIA_SELF_TEST_ASSERT( memcmp( buf, aria_test2_cfb_ct[i], 48 ) != 0 );
 
         /* Test CFB decryption */
         if( verbose )
@@ -1008,8 +998,7 @@ int mbedtls_aria_self_test( int verbose )
         j = 0;
         mbedtls_aria_crypt_cfb128( &ctx, MBEDTLS_ARIA_DECRYPT, 48, &j,
             iv, aria_test2_cfb_ct[i], buf );
-        if( memcmp( buf, aria_test2_pt, 48 ) != 0 )
-            ARIA_SELF_TEST_IF_FAIL;
+        ARIA_SELF_TEST_ASSERT( memcmp( buf, aria_test2_pt, 48 ) != 0 );
     }
     if( verbose )
         mbedtls_printf( "\n" );
@@ -1027,8 +1016,7 @@ int mbedtls_aria_self_test( int verbose )
         j = 0;
         mbedtls_aria_crypt_ctr( &ctx, 48, &j, iv, blk,
             aria_test2_pt, buf );
-        if( memcmp( buf, aria_test2_ctr_ct[i], 48 ) != 0 )
-            ARIA_SELF_TEST_IF_FAIL;
+        ARIA_SELF_TEST_ASSERT( memcmp( buf, aria_test2_ctr_ct[i], 48 ) != 0 );
 
         /* Test CTR decryption */
         if( verbose )
@@ -1039,8 +1027,7 @@ int mbedtls_aria_self_test( int verbose )
         j = 0;
         mbedtls_aria_crypt_ctr( &ctx, 48, &j, iv, blk,
             aria_test2_ctr_ct[i], buf );
-        if( memcmp( buf, aria_test2_pt, 48 ) != 0 )
-            ARIA_SELF_TEST_IF_FAIL;
+        ARIA_SELF_TEST_ASSERT( memcmp( buf, aria_test2_pt, 48 ) != 0 );
     }
     if( verbose )
         mbedtls_printf( "\n" );
diff --git a/thirdparty/mbedtls/library/asn1parse.c b/thirdparty/mbedtls/library/asn1parse.c
index 22747d3ba..bf9758528 100644
--- a/thirdparty/mbedtls/library/asn1parse.c
+++ b/thirdparty/mbedtls/library/asn1parse.c
@@ -31,13 +31,7 @@
 #include "mbedtls/bignum.h"
 #endif
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif
 
 /*
  * ASN.1 DER decoding routines
diff --git a/thirdparty/mbedtls/library/asn1write.c b/thirdparty/mbedtls/library/asn1write.c
index afa26a6be..4b59927cb 100644
--- a/thirdparty/mbedtls/library/asn1write.c
+++ b/thirdparty/mbedtls/library/asn1write.c
@@ -26,13 +26,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif
 
 int mbedtls_asn1_write_len( unsigned char **p, unsigned char *start, size_t len )
 {
@@ -78,9 +72,11 @@ int mbedtls_asn1_write_len( unsigned char **p, unsigned char *start, size_t len
         return( 4 );
     }
 
+    int len_is_valid = 1;
 #if SIZE_MAX > 0xFFFFFFFF
-    if( len <= 0xFFFFFFFF )
+    len_is_valid = ( len <= 0xFFFFFFFF );
 #endif
+    if( len_is_valid )
     {
         if( *p - start < 5 )
             return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
@@ -93,9 +89,7 @@ int mbedtls_asn1_write_len( unsigned char **p, unsigned char *start, size_t len
         return( 5 );
     }
 
-#if SIZE_MAX > 0xFFFFFFFF
     return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
-#endif
 }
 
 int mbedtls_asn1_write_tag( unsigned char **p, unsigned char *start, unsigned char tag )
diff --git a/thirdparty/mbedtls/library/base64.c b/thirdparty/mbedtls/library/base64.c
index 83daa0bcc..9021a041b 100644
--- a/thirdparty/mbedtls/library/base64.c
+++ b/thirdparty/mbedtls/library/base64.c
@@ -28,12 +28,7 @@
 
 #if defined(MBEDTLS_SELF_TEST)
 #include <string.h>
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
 #endif /* MBEDTLS_SELF_TEST */
 
 #define BASE64_SIZE_T_MAX   ( (size_t) -1 ) /* SIZE_T_MAX is not standard */
diff --git a/thirdparty/mbedtls/library/bignum.c b/thirdparty/mbedtls/library/bignum.c
index 32578e2c6..37193f55a 100644
--- a/thirdparty/mbedtls/library/bignum.c
+++ b/thirdparty/mbedtls/library/bignum.c
@@ -46,15 +46,7 @@
 #include <limits.h>
 #include <string.h>
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_printf     printf
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif
 
 #define MPI_VALIDATE_RET( cond )                                       \
     MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_MPI_BAD_INPUT_DATA )
@@ -270,6 +262,17 @@ void mbedtls_mpi_swap( mbedtls_mpi *X, mbedtls_mpi *Y )
     memcpy(  Y, &T, sizeof( mbedtls_mpi ) );
 }
 
+static inline mbedtls_mpi_uint mpi_sint_abs( mbedtls_mpi_sint z )
+{
+    if( z >= 0 )
+        return( z );
+    /* Take care to handle the most negative value (-2^(biL-1)) correctly.
+     * A naive -z would have undefined behavior.
+     * Write this in a way that makes popular compilers happy (GCC, Clang,
+     * MSVC). */
+    return( (mbedtls_mpi_uint) 0 - (mbedtls_mpi_uint) z );
+}
+
 /*
  * Set value from integer
  */
@@ -281,7 +284,7 @@ int mbedtls_mpi_lset( mbedtls_mpi *X, mbedtls_mpi_sint z )
     MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, 1 ) );
     memset( X->p, 0, X->n * ciL );
 
-    X->p[0] = ( z < 0 ) ? -z : z;
+    X->p[0] = mpi_sint_abs( z );
     X->s    = ( z < 0 ) ? -1 : 1;
 
 cleanup:
@@ -1101,7 +1104,7 @@ int mbedtls_mpi_cmp_int( const mbedtls_mpi *X, mbedtls_mpi_sint z )
     mbedtls_mpi_uint p[1];
     MPI_VALIDATE_RET( X != NULL );
 
-    *p  = ( z < 0 ) ? -z : z;
+    *p  = mpi_sint_abs( z );
     Y.s = ( z < 0 ) ? -1 : 1;
     Y.n = 1;
     Y.p = p;
@@ -1138,6 +1141,11 @@ int mbedtls_mpi_add_abs( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi
         if( B->p[j - 1] != 0 )
             break;
 
+    /* Exit early to avoid undefined behavior on NULL+0 when X->n == 0
+     * and B is 0 (of any size). */
+    if( j == 0 )
+        return( 0 );
+
     MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, j ) );
 
     o = B->p; p = X->p; c = 0;
@@ -1257,10 +1265,12 @@ cleanup:
     return( ret );
 }
 
-/*
- * Signed addition: X = A + B
+/* Common function for signed addition and subtraction.
+ * Calculate A + B * flip_B where flip_B is 1 or -1.
  */
-int mbedtls_mpi_add_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B )
+static int add_sub_mpi( mbedtls_mpi *X,
+                        const mbedtls_mpi *A, const mbedtls_mpi *B,
+                        int flip_B )
 {
     int ret, s;
     MPI_VALIDATE_RET( X != NULL );
@@ -1268,16 +1278,21 @@ int mbedtls_mpi_add_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi
     MPI_VALIDATE_RET( B != NULL );
 
     s = A->s;
-    if( A->s * B->s < 0 )
+    if( A->s * B->s * flip_B < 0 )
     {
-        if( mbedtls_mpi_cmp_abs( A, B ) >= 0 )
+        int cmp = mbedtls_mpi_cmp_abs( A, B );
+        if( cmp >= 0 )
         {
             MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( X, A, B ) );
-            X->s =  s;
+            /* If |A| = |B|, the result is 0 and we must set the sign bit
+             * to +1 regardless of which of A or B was negative. Otherwise,
+             * since |A| > |B|, the sign is the sign of A. */
+            X->s = cmp == 0 ? 1 : s;
         }
         else
         {
             MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( X, B, A ) );
+            /* Since |A| < |B|, the sign is the opposite of A. */
             X->s = -s;
         }
     }
@@ -1292,39 +1307,20 @@ cleanup:
     return( ret );
 }
 
+/*
+ * Signed addition: X = A + B
+ */
+int mbedtls_mpi_add_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B )
+{
+    return( add_sub_mpi( X, A, B, 1 ) );
+}
+
 /*
  * Signed subtraction: X = A - B
  */
 int mbedtls_mpi_sub_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B )
 {
-    int ret, s;
-    MPI_VALIDATE_RET( X != NULL );
-    MPI_VALIDATE_RET( A != NULL );
-    MPI_VALIDATE_RET( B != NULL );
-
-    s = A->s;
-    if( A->s * B->s > 0 )
-    {
-        if( mbedtls_mpi_cmp_abs( A, B ) >= 0 )
-        {
-            MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( X, A, B ) );
-            X->s =  s;
-        }
-        else
-        {
-            MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( X, B, A ) );
-            X->s = -s;
-        }
-    }
-    else
-    {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_add_abs( X, A, B ) );
-        X->s = s;
-    }
-
-cleanup:
-
-    return( ret );
+    return( add_sub_mpi( X, A, B, -1 ) );
 }
 
 /*
@@ -1337,7 +1333,7 @@ int mbedtls_mpi_add_int( mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_sint
     MPI_VALIDATE_RET( X != NULL );
     MPI_VALIDATE_RET( A != NULL );
 
-    p[0] = ( b < 0 ) ? -b : b;
+    p[0] = mpi_sint_abs( b );
     B.s = ( b < 0 ) ? -1 : 1;
     B.n = 1;
     B.p = p;
@@ -1355,7 +1351,7 @@ int mbedtls_mpi_sub_int( mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_sint
     MPI_VALIDATE_RET( X != NULL );
     MPI_VALIDATE_RET( A != NULL );
 
-    p[0] = ( b < 0 ) ? -b : b;
+    p[0] = mpi_sint_abs( b );
     B.s = ( b < 0 ) ? -1 : 1;
     B.n = 1;
     B.p = p;
@@ -1776,7 +1772,7 @@ int mbedtls_mpi_div_int( mbedtls_mpi *Q, mbedtls_mpi *R,
     mbedtls_mpi_uint p[1];
     MPI_VALIDATE_RET( A != NULL );
 
-    p[0] = ( b < 0 ) ? -b : b;
+    p[0] = mpi_sint_abs( b );
     B.s = ( b < 0 ) ? -1 : 1;
     B.n = 1;
     B.p = p;
@@ -2009,11 +2005,11 @@ int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A,
                          mbedtls_mpi *prec_RR )
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    size_t wbits, wsize, one = 1;
+    size_t window_bitsize;
     size_t i, j, nblimbs;
     size_t bufsize, nbits;
     mbedtls_mpi_uint ei, mm, state;
-    mbedtls_mpi RR, T, W[ 1 << MBEDTLS_MPI_WINDOW_SIZE ], WW, Apos;
+    mbedtls_mpi RR, T, W[ (size_t) 1 << MBEDTLS_MPI_WINDOW_SIZE ], WW, Apos;
     int neg;
 
     MPI_VALIDATE_RET( X != NULL );
@@ -2042,21 +2038,59 @@ int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A,
 
     i = mbedtls_mpi_bitlen( E );
 
-    wsize = ( i > 671 ) ? 6 : ( i > 239 ) ? 5 :
+    window_bitsize = ( i > 671 ) ? 6 : ( i > 239 ) ? 5 :
             ( i >  79 ) ? 4 : ( i >  23 ) ? 3 : 1;
 
 #if( MBEDTLS_MPI_WINDOW_SIZE < 6 )
-    if( wsize > MBEDTLS_MPI_WINDOW_SIZE )
-        wsize = MBEDTLS_MPI_WINDOW_SIZE;
+    if( window_bitsize > MBEDTLS_MPI_WINDOW_SIZE )
+        window_bitsize = MBEDTLS_MPI_WINDOW_SIZE;
 #endif
 
+    const size_t w_table_used_size = (size_t) 1 << window_bitsize;
+
+    /*
+     * This function is not constant-trace: its memory accesses depend on the
+     * exponent value. To defend against timing attacks, callers (such as RSA
+     * and DHM) should use exponent blinding. However this is not enough if the
+     * adversary can find the exponent in a single trace, so this function
+     * takes extra precautions against adversaries who can observe memory
+     * access patterns.
+     *
+     * This function performs a series of multiplications by table elements and
+     * squarings, and we want the prevent the adversary from finding out which
+     * table element was used, and from distinguishing between multiplications
+     * and squarings. Firstly, when multiplying by an element of the window
+     * W[i], we do a constant-trace table lookup to obfuscate i. This leaves
+     * squarings as having a different memory access patterns from other
+     * multiplications. So secondly, we put the accumulator X in the table as
+     * well, and also do a constant-trace table lookup to multiply by X.
+     *
+     * This way, all multiplications take the form of a lookup-and-multiply.
+     * The number of lookup-and-multiply operations inside each iteration of
+     * the main loop still depends on the bits of the exponent, but since the
+     * other operations in the loop don't have an easily recognizable memory
+     * trace, an adversary is unlikely to be able to observe the exact
+     * patterns.
+     *
+     * An adversary may still be able to recover the exponent if they can
+     * observe both memory accesses and branches. However, branch prediction
+     * exploitation typically requires many traces of execution over the same
+     * data, which is defeated by randomized blinding.
+     *
+     * To achieve this, we make a copy of X and we use the table entry in each
+     * calculation from this point on.
+     */
+    const size_t x_index = 0;
+    mbedtls_mpi_init( &W[x_index] );
+    mbedtls_mpi_copy( &W[x_index], X );
+
     j = N->n + 1;
     /* All W[i] and X must have at least N->n limbs for the mpi_montmul()
      * and mpi_montred() calls later. Here we ensure that W[1] and X are
      * large enough, and later we'll grow other W[i] to the same length.
      * They must not be shrunk midway through this function!
      */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, j ) );
+    MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &W[x_index], j ) );
     MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &W[1],  j ) );
     MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &T, j * 2 ) );
 
@@ -2105,28 +2139,36 @@ int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A,
     mpi_montmul( &W[1], &RR, N, mm, &T );
 
     /*
-     * X = R^2 * R^-1 mod N = R mod N
+     * W[x_index] = R^2 * R^-1 mod N = R mod N
      */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( X, &RR ) );
-    mpi_montred( X, N, mm, &T );
+    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &W[x_index], &RR ) );
+    mpi_montred( &W[x_index], N, mm, &T );
 
-    if( wsize > 1 )
+
+    if( window_bitsize > 1 )
     {
         /*
-         * W[1 << (wsize - 1)] = W[1] ^ (wsize - 1)
+         * W[i] = W[1] ^ i
+         *
+         * The first bit of the sliding window is always 1 and therefore we
+         * only need to store the second half of the table.
+         *
+         * (There are two special elements in the table: W[0] for the
+         * accumulator/result and W[1] for A in Montgomery form. Both of these
+         * are already set at this point.)
          */
-        j =  one << ( wsize - 1 );
+        j = w_table_used_size / 2;
 
         MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &W[j], N->n + 1 ) );
         MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &W[j], &W[1]    ) );
 
-        for( i = 0; i < wsize - 1; i++ )
+        for( i = 0; i < window_bitsize - 1; i++ )
             mpi_montmul( &W[j], &W[j], N, mm, &T );
 
         /*
          * W[i] = W[i - 1] * W[1]
          */
-        for( i = j + 1; i < ( one << wsize ); i++ )
+        for( i = j + 1; i < w_table_used_size; i++ )
         {
             MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &W[i], N->n + 1 ) );
             MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &W[i], &W[i - 1] ) );
@@ -2138,7 +2180,7 @@ int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A,
     nblimbs = E->n;
     bufsize = 0;
     nbits   = 0;
-    wbits   = 0;
+    size_t exponent_bits_in_window = 0;
     state   = 0;
 
     while( 1 )
@@ -2166,9 +2208,10 @@ int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A,
         if( ei == 0 && state == 1 )
         {
             /*
-             * out of window, square X
+             * out of window, square W[x_index]
              */
-            mpi_montmul( X, X, N, mm, &T );
+            MBEDTLS_MPI_CHK( mpi_select( &WW, W, w_table_used_size, x_index ) );
+            mpi_montmul( &W[x_index], &WW, N, mm, &T );
             continue;
         }
 
@@ -2178,25 +2221,30 @@ int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A,
         state = 2;
 
         nbits++;
-        wbits |= ( ei << ( wsize - nbits ) );
+        exponent_bits_in_window |= ( ei << ( window_bitsize - nbits ) );
 
-        if( nbits == wsize )
+        if( nbits == window_bitsize )
         {
             /*
-             * X = X^wsize R^-1 mod N
+             * W[x_index] = W[x_index]^window_bitsize R^-1 mod N
              */
-            for( i = 0; i < wsize; i++ )
-                mpi_montmul( X, X, N, mm, &T );
+            for( i = 0; i < window_bitsize; i++ )
+            {
+                MBEDTLS_MPI_CHK( mpi_select( &WW, W, w_table_used_size,
+                                             x_index ) );
+                mpi_montmul( &W[x_index], &WW, N, mm, &T );
+            }
 
             /*
-             * X = X * W[wbits] R^-1 mod N
+             * W[x_index] = W[x_index] * W[exponent_bits_in_window] R^-1 mod N
              */
-            MBEDTLS_MPI_CHK( mpi_select( &WW, W, (size_t) 1 << wsize, wbits ) );
-            mpi_montmul( X, &WW, N, mm, &T );
+            MBEDTLS_MPI_CHK( mpi_select( &WW, W, w_table_used_size,
+                                         exponent_bits_in_window ) );
+            mpi_montmul( &W[x_index], &WW, N, mm, &T );
 
             state--;
             nbits = 0;
-            wbits = 0;
+            exponent_bits_in_window = 0;
         }
     }
 
@@ -2205,31 +2253,45 @@ int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A,
      */
     for( i = 0; i < nbits; i++ )
     {
-        mpi_montmul( X, X, N, mm, &T );
+        MBEDTLS_MPI_CHK( mpi_select( &WW, W, w_table_used_size, x_index ) );
+        mpi_montmul( &W[x_index], &WW, N, mm, &T );
 
-        wbits <<= 1;
+        exponent_bits_in_window <<= 1;
 
-        if( ( wbits & ( one << wsize ) ) != 0 )
-            mpi_montmul( X, &W[1], N, mm, &T );
+        if( ( exponent_bits_in_window & ( (size_t) 1 << window_bitsize ) ) != 0 )
+        {
+            MBEDTLS_MPI_CHK( mpi_select( &WW, W, w_table_used_size, 1 ) );
+            mpi_montmul( &W[x_index], &WW, N, mm, &T );
+        }
     }
 
     /*
-     * X = A^E * R * R^-1 mod N = A^E mod N
+     * W[x_index] = A^E * R * R^-1 mod N = A^E mod N
      */
-    mpi_montred( X, N, mm, &T );
+    mpi_montred( &W[x_index], N, mm, &T );
 
     if( neg && E->n != 0 && ( E->p[0] & 1 ) != 0 )
     {
-        X->s = -1;
-        MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( X, N, X ) );
+        W[x_index].s = -1;
+        MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &W[x_index], N, &W[x_index] ) );
     }
 
+    /*
+     * Load the result in the output variable.
+     */
+    mbedtls_mpi_copy( X, &W[x_index] );
+
 cleanup:
 
-    for( i = ( one << ( wsize - 1 ) ); i < ( one << wsize ); i++ )
+    /* The first bit of the sliding window is always 1 and therefore the first
+     * half of the table was unused. */
+    for( i = w_table_used_size/2; i < w_table_used_size; i++ )
         mbedtls_mpi_free( &W[i] );
 
-    mbedtls_mpi_free( &W[1] ); mbedtls_mpi_free( &T ); mbedtls_mpi_free( &Apos );
+    mbedtls_mpi_free( &W[x_index] );
+    mbedtls_mpi_free( &W[1] );
+    mbedtls_mpi_free( &T );
+    mbedtls_mpi_free( &Apos );
     mbedtls_mpi_free( &WW );
 
     if( prec_RR == NULL || prec_RR->p == NULL )
@@ -2862,7 +2924,7 @@ int mbedtls_mpi_gen_prime( mbedtls_mpi *X, size_t nbits, int flags,
         else
         {
             /*
-             * An necessary condition for Y and X = 2Y + 1 to be prime
+             * A necessary condition for Y and X = 2Y + 1 to be prime
              * is X = 2 mod 3 (which is equivalent to Y = 2 mod 3).
              * Make sure it is satisfied, while keeping X = 3 mod 4
              */
diff --git a/thirdparty/mbedtls/library/camellia.c b/thirdparty/mbedtls/library/camellia.c
index 29d730ab5..e90cd7f13 100644
--- a/thirdparty/mbedtls/library/camellia.c
+++ b/thirdparty/mbedtls/library/camellia.c
@@ -32,14 +32,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #if !defined(MBEDTLS_CAMELLIA_ALT)
 
diff --git a/thirdparty/mbedtls/library/ccm.c b/thirdparty/mbedtls/library/ccm.c
index a21a37f55..e0d43334f 100644
--- a/thirdparty/mbedtls/library/ccm.c
+++ b/thirdparty/mbedtls/library/ccm.c
@@ -36,14 +36,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
 
 #if !defined(MBEDTLS_CCM_ALT)
 
diff --git a/thirdparty/mbedtls/library/chacha20.c b/thirdparty/mbedtls/library/chacha20.c
index 658f04690..bd0701482 100644
--- a/thirdparty/mbedtls/library/chacha20.c
+++ b/thirdparty/mbedtls/library/chacha20.c
@@ -32,22 +32,10 @@
 #include <stddef.h>
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #if !defined(MBEDTLS_CHACHA20_ALT)
 
-#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
-    !defined(inline) && !defined(__cplusplus)
-#define inline __inline
-#endif
-
 /* Parameter validation macros */
 #define CHACHA20_VALIDATE_RET( cond )                                       \
     MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_CHACHA20_BAD_INPUT_DATA )
diff --git a/thirdparty/mbedtls/library/chachapoly.c b/thirdparty/mbedtls/library/chachapoly.c
index dc75b2030..4adf84685 100644
--- a/thirdparty/mbedtls/library/chachapoly.c
+++ b/thirdparty/mbedtls/library/chachapoly.c
@@ -28,14 +28,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #if !defined(MBEDTLS_CHACHAPOLY_ALT)
 
diff --git a/thirdparty/mbedtls/library/cipher.c b/thirdparty/mbedtls/library/cipher.c
index f3b4bd29c..67e327458 100644
--- a/thirdparty/mbedtls/library/cipher.c
+++ b/thirdparty/mbedtls/library/cipher.c
@@ -63,12 +63,7 @@
 #include "mbedtls/nist_kw.h"
 #endif
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#define mbedtls_calloc calloc
-#define mbedtls_free   free
-#endif
 
 #define CIPHER_VALIDATE_RET( cond )    \
     MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA )
diff --git a/thirdparty/mbedtls/library/cipher_wrap.c b/thirdparty/mbedtls/library/cipher_wrap.c
index 57eb3cb67..c76bdcc0f 100644
--- a/thirdparty/mbedtls/library/cipher_wrap.c
+++ b/thirdparty/mbedtls/library/cipher_wrap.c
@@ -76,13 +76,7 @@
 #include <string.h>
 #endif
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif
 
 #if defined(MBEDTLS_GCM_C)
 /* shared by all GCM ciphers */
diff --git a/thirdparty/mbedtls/library/common.h b/thirdparty/mbedtls/library/common.h
index c06472418..1663d5022 100644
--- a/thirdparty/mbedtls/library/common.h
+++ b/thirdparty/mbedtls/library/common.h
@@ -29,8 +29,15 @@
 #include "mbedtls/config.h"
 #endif
 
+#include <stddef.h>
 #include <stdint.h>
 
+/* Define `inline` on some non-C99-compliant compilers. */
+#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
+    !defined(inline) && !defined(__cplusplus)
+#define inline __inline
+#endif
+
 /** Helper to define a function as static except when building invasive tests.
  *
  * If a function is only used inside its own source file and should be
@@ -52,6 +59,44 @@
 #define MBEDTLS_STATIC_TESTABLE static
 #endif
 
+/** Return an offset into a buffer.
+ *
+ * This is just the addition of an offset to a pointer, except that this
+ * function also accepts an offset of 0 into a buffer whose pointer is null.
+ * (`p + n` has undefined behavior when `p` is null, even when `n == 0`.
+ * A null pointer is a valid buffer pointer when the size is 0, for example
+ * as the result of `malloc(0)` on some platforms.)
+ *
+ * \param p     Pointer to a buffer of at least n bytes.
+ *              This may be \p NULL if \p n is zero.
+ * \param n     An offset in bytes.
+ * \return      Pointer to offset \p n in the buffer \p p.
+ *              Note that this is only a valid pointer if the size of the
+ *              buffer is at least \p n + 1.
+ */
+static inline unsigned char *mbedtls_buffer_offset(
+    unsigned char *p, size_t n )
+{
+    return( p == NULL ? NULL : p + n );
+}
+
+/** Return an offset into a read-only buffer.
+ *
+ * Similar to mbedtls_buffer_offset(), but for const pointers.
+ *
+ * \param p     Pointer to a buffer of at least n bytes.
+ *              This may be \p NULL if \p n is zero.
+ * \param n     An offset in bytes.
+ * \return      Pointer to offset \p n in the buffer \p p.
+ *              Note that this is only a valid pointer if the size of the
+ *              buffer is at least \p n + 1.
+ */
+static inline const unsigned char *mbedtls_buffer_offset_const(
+    const unsigned char *p, size_t n )
+{
+    return( p == NULL ? NULL : p + n );
+}
+
 /** Byte Reading Macros
  *
  * Given a multi-byte integer \p x, MBEDTLS_BYTE_n retrieves the n-th
diff --git a/thirdparty/mbedtls/library/constant_time.c b/thirdparty/mbedtls/library/constant_time.c
index e276d23ca..2401b0434 100644
--- a/thirdparty/mbedtls/library/constant_time.c
+++ b/thirdparty/mbedtls/library/constant_time.c
@@ -81,7 +81,7 @@ unsigned mbedtls_ct_uint_mask( unsigned value )
 #endif
 }
 
-#if defined(MBEDTLS_SSL_SOME_SUITES_USE_TLS_CBC)
+#if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC)
 
 size_t mbedtls_ct_size_mask( size_t value )
 {
@@ -97,7 +97,7 @@ size_t mbedtls_ct_size_mask( size_t value )
 #endif
 }
 
-#endif /* MBEDTLS_SSL_SOME_SUITES_USE_TLS_CBC */
+#endif /* MBEDTLS_SSL_SOME_MODES_USE_MAC */
 
 #if defined(MBEDTLS_BIGNUM_C)
 
@@ -272,7 +272,7 @@ unsigned mbedtls_ct_uint_if( unsigned condition,
  * \note if1 and if0 must be either 1 or -1, otherwise the result
  *       is undefined.
  *
- * \param condition     Condition to test.
+ * \param condition     Condition to test; must be either 0 or 1.
  * \param if1           The first sign; must be either +1 or -1.
  * \param if0           The second sign; must be either +1 or -1.
  *
@@ -404,8 +404,7 @@ static void mbedtls_ct_mem_move_to_left( void *start,
 
 #endif /* MBEDTLS_PKCS1_V15 && MBEDTLS_RSA_C && ! MBEDTLS_RSA_ALT */
 
-#if defined(MBEDTLS_SSL_SOME_SUITES_USE_TLS_CBC)
-
+#if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC)
 void mbedtls_ct_memcpy_if_eq( unsigned char *dest,
                               const unsigned char *src,
                               size_t len,
@@ -527,7 +526,7 @@ cleanup:
     return( ret );
 }
 
-#endif /* MBEDTLS_SSL_SOME_SUITES_USE_TLS_CBC */
+#endif /* MBEDTLS_SSL_SOME_MODES_USE_MAC */
 
 #if defined(MBEDTLS_BIGNUM_C)
 
diff --git a/thirdparty/mbedtls/library/constant_time_internal.h b/thirdparty/mbedtls/library/constant_time_internal.h
index a550b38fa..ff2d0ff92 100644
--- a/thirdparty/mbedtls/library/constant_time_internal.h
+++ b/thirdparty/mbedtls/library/constant_time_internal.h
@@ -32,7 +32,6 @@
 
 #include <stddef.h>
 
-
 /** Turn a value into a mask:
  * - if \p value == 0, return the all-bits 0 mask, aka 0
  * - otherwise, return the all-bits 1 mask, aka (unsigned) -1
@@ -46,7 +45,7 @@
  */
 unsigned mbedtls_ct_uint_mask( unsigned value );
 
-#if defined(MBEDTLS_SSL_SOME_SUITES_USE_TLS_CBC)
+#if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC)
 
 /** Turn a value into a mask:
  * - if \p value == 0, return the all-bits 0 mask, aka 0
@@ -61,7 +60,7 @@ unsigned mbedtls_ct_uint_mask( unsigned value );
  */
 size_t mbedtls_ct_size_mask( size_t value );
 
-#endif /* MBEDTLS_SSL_SOME_SUITES_USE_TLS_CBC */
+#endif /* MBEDTLS_SSL_SOME_MODES_USE_MAC */
 
 #if defined(MBEDTLS_BIGNUM_C)
 
@@ -196,7 +195,7 @@ signed char mbedtls_ct_base64_dec_value( unsigned char c );
 
 #endif /* MBEDTLS_BASE64_C */
 
-#if defined(MBEDTLS_SSL_SOME_SUITES_USE_TLS_CBC)
+#if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC)
 
 /** Conditional memcpy without branches.
  *
@@ -292,7 +291,7 @@ int mbedtls_ct_hmac( mbedtls_md_context_t *ctx,
                      size_t max_data_len,
                      unsigned char *output );
 
-#endif /* MBEDTLS_SSL_SOME_SUITES_USE_TLS_CBC */
+#endif /* MBEDTLS_SSL_SOME_MODES_USE_MAC */
 
 #if defined(MBEDTLS_PKCS1_V15) && defined(MBEDTLS_RSA_C) && !defined(MBEDTLS_RSA_ALT)
 
diff --git a/thirdparty/mbedtls/library/ctr_drbg.c b/thirdparty/mbedtls/library/ctr_drbg.c
index a00d66ce8..ed31576a7 100644
--- a/thirdparty/mbedtls/library/ctr_drbg.c
+++ b/thirdparty/mbedtls/library/ctr_drbg.c
@@ -36,14 +36,7 @@
 #include <stdio.h>
 #endif
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 /*
  * CTR_DRBG context initialization
diff --git a/thirdparty/mbedtls/library/debug.c b/thirdparty/mbedtls/library/debug.c
index e1086008a..353b4bf07 100644
--- a/thirdparty/mbedtls/library/debug.c
+++ b/thirdparty/mbedtls/library/debug.c
@@ -21,16 +21,7 @@
 
 #if defined(MBEDTLS_DEBUG_C)
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc      calloc
-#define mbedtls_free        free
-#define mbedtls_time_t      time_t
-#define mbedtls_snprintf    snprintf
-#define mbedtls_vsnprintf   vsnprintf
-#endif
 
 #include "mbedtls/debug.h"
 #include "mbedtls/error.h"
@@ -39,11 +30,6 @@
 #include <stdio.h>
 #include <string.h>
 
-#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
-    !defined(inline) && !defined(__cplusplus)
-#define inline __inline
-#endif
-
 #define DEBUG_BUF_SIZE      512
 
 static int debug_threshold = 0;
diff --git a/thirdparty/mbedtls/library/des.c b/thirdparty/mbedtls/library/des.c
index 91d22b5d9..65f5681cf 100644
--- a/thirdparty/mbedtls/library/des.c
+++ b/thirdparty/mbedtls/library/des.c
@@ -33,14 +33,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #if !defined(MBEDTLS_DES_ALT)
 
diff --git a/thirdparty/mbedtls/library/dhm.c b/thirdparty/mbedtls/library/dhm.c
index 88e148bb8..4d2e33e68 100644
--- a/thirdparty/mbedtls/library/dhm.c
+++ b/thirdparty/mbedtls/library/dhm.c
@@ -43,15 +43,7 @@
 #include "mbedtls/asn1.h"
 #endif
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#include <stdio.h>
-#define mbedtls_printf     printf
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif
 
 #if !defined(MBEDTLS_DHM_ALT)
 
diff --git a/thirdparty/mbedtls/library/ecdh.c b/thirdparty/mbedtls/library/ecdh.c
index 60c6e429d..724c938a7 100644
--- a/thirdparty/mbedtls/library/ecdh.c
+++ b/thirdparty/mbedtls/library/ecdh.c
@@ -77,10 +77,12 @@ static int ecdh_gen_public_restartable( mbedtls_ecp_group *grp,
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    /* If multiplication is in progress, we already generated a privkey */
+    int restarting = 0;
 #if defined(MBEDTLS_ECP_RESTARTABLE)
-    if( rs_ctx == NULL || rs_ctx->rsm == NULL )
+    restarting = ( rs_ctx != NULL && rs_ctx->rsm != NULL );
 #endif
+    /* If multiplication is in progress, we already generated a privkey */
+    if( !restarting )
         MBEDTLS_MPI_CHK( mbedtls_ecp_gen_privkey( grp, d, f_rng, p_rng ) );
 
     MBEDTLS_MPI_CHK( mbedtls_ecp_mul_restartable( grp, Q, d, &grp->G,
diff --git a/thirdparty/mbedtls/library/ecdsa.c b/thirdparty/mbedtls/library/ecdsa.c
index 640eb24a2..4bae6a93f 100644
--- a/thirdparty/mbedtls/library/ecdsa.c
+++ b/thirdparty/mbedtls/library/ecdsa.c
@@ -36,13 +36,7 @@
 #include "mbedtls/hmac_drbg.h"
 #endif
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif
 
 #include "mbedtls/platform_util.h"
 #include "mbedtls/error.h"
diff --git a/thirdparty/mbedtls/library/ecjpake.c b/thirdparty/mbedtls/library/ecjpake.c
index 0b9bffb93..fe0b9d93e 100644
--- a/thirdparty/mbedtls/library/ecjpake.c
+++ b/thirdparty/mbedtls/library/ecjpake.c
@@ -794,12 +794,7 @@ cleanup:
 
 #if defined(MBEDTLS_SELF_TEST)
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf     printf
-#endif
 
 #if !defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \
     !defined(MBEDTLS_SHA256_C)
diff --git a/thirdparty/mbedtls/library/ecp.c b/thirdparty/mbedtls/library/ecp.c
index 890f364a0..ad19e05fb 100644
--- a/thirdparty/mbedtls/library/ecp.c
+++ b/thirdparty/mbedtls/library/ecp.c
@@ -90,15 +90,7 @@
 #define ECP_VALIDATE( cond )        \
     MBEDTLS_INTERNAL_VALIDATE( cond )
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#include <stdio.h>
-#define mbedtls_printf     printf
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif
 
 #include "mbedtls/ecp_internal.h"
 
@@ -112,11 +104,6 @@
 #endif
 #endif /* MBEDTLS_ECP_NO_INTERNAL_RNG */
 
-#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
-    !defined(inline) && !defined(__cplusplus)
-#define inline __inline
-#endif
-
 #if defined(MBEDTLS_SELF_TEST)
 /*
  * Counts of point addition and doubling, and field multiplications.
@@ -2056,9 +2043,13 @@ static int ecp_mul_comb_core( const mbedtls_ecp_group *grp, mbedtls_ecp_point *R
         i = d;
         MBEDTLS_MPI_CHK( ecp_select_comb( grp, R, T, T_size, x[i] ) );
         MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &R->Z, 1 ) );
+
+        int have_rng = 1;
 #if defined(MBEDTLS_ECP_NO_INTERNAL_RNG)
-        if( f_rng != 0 )
+        if( f_rng == NULL )
+            have_rng = 0;
 #endif
+        if( have_rng )
             MBEDTLS_MPI_CHK( ecp_randomize_jac( grp, R, f_rng, p_rng ) );
     }
 
@@ -2192,9 +2183,12 @@ final_norm:
      *
      * Avoid the leak by randomizing coordinates before we normalize them.
      */
+    int have_rng = 1;
 #if defined(MBEDTLS_ECP_NO_INTERNAL_RNG)
-    if( f_rng != 0 )
+    if( f_rng == NULL )
+        have_rng = 0;
 #endif
+    if( have_rng )
         MBEDTLS_MPI_CHK( ecp_randomize_jac( grp, RR, f_rng, p_rng ) );
 
     MBEDTLS_MPI_CHK( ecp_normalize_jac( grp, RR ) );
@@ -2403,12 +2397,14 @@ cleanup:
         mbedtls_free( T );
     }
 
-    /* don't free R while in progress in case R == P */
-#if defined(MBEDTLS_ECP_RESTARTABLE)
-    if( ret != MBEDTLS_ERR_ECP_IN_PROGRESS )
-#endif
     /* prevent caller from using invalid value */
-    if( ret != 0 )
+    int should_free_R = ( ret != 0 );
+#if defined(MBEDTLS_ECP_RESTARTABLE)
+    /* don't free R while in progress in case R == P */
+    if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
+        should_free_R = 0;
+#endif
+    if( should_free_R )
         mbedtls_ecp_point_free( R );
 
     ECP_RS_LEAVE( rsm );
@@ -2596,13 +2592,16 @@ static int ecp_mul_mxz( mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
     MOD_ADD( RP.X );
 
     /* Randomize coordinates of the starting point */
+    int have_rng = 1;
 #if defined(MBEDTLS_ECP_NO_INTERNAL_RNG)
-    if( f_rng != NULL )
+    if( f_rng == NULL )
+        have_rng = 0;
 #endif
+    if( have_rng )
         MBEDTLS_MPI_CHK( ecp_randomize_mxz( grp, &RP, f_rng, p_rng ) );
 
     /* Loop invariant: R = result so far, RP = R + P */
-    i = mbedtls_mpi_bitlen( m ); /* one past the (zero-based) most significant bit */
+    i = grp->nbits + 1; /* one past the (zero-based) required msb for private keys */
     while( i-- > 0 )
     {
         b = mbedtls_mpi_get_bit( m, i );
@@ -2631,9 +2630,12 @@ static int ecp_mul_mxz( mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
      *
      * Avoid the leak by randomizing coordinates before we normalize them.
      */
+    have_rng = 1;
 #if defined(MBEDTLS_ECP_NO_INTERNAL_RNG)
-    if( f_rng != NULL )
+    if( f_rng == NULL )
+        have_rng = 0;
 #endif
+    if( have_rng )
         MBEDTLS_MPI_CHK( ecp_randomize_mxz( grp, R, f_rng, p_rng ) );
 
     MBEDTLS_MPI_CHK( ecp_normalize_mxz( grp, R ) );
@@ -2680,10 +2682,12 @@ int mbedtls_ecp_mul_restartable( mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
         MBEDTLS_MPI_CHK( mbedtls_internal_ecp_init( grp ) );
 #endif /* MBEDTLS_ECP_INTERNAL_ALT */
 
+    int restarting = 0;
 #if defined(MBEDTLS_ECP_RESTARTABLE)
-    /* skip argument check when restarting */
-    if( rs_ctx == NULL || rs_ctx->rsm == NULL )
+    restarting = ( rs_ctx != NULL && rs_ctx->rsm != NULL );
 #endif
+    /* skip argument check when restarting */
+    if( !restarting )
     {
         /* check_privkey is free */
         MBEDTLS_ECP_BUDGET( MBEDTLS_ECP_OPS_CHK );
@@ -2797,14 +2801,17 @@ static int mbedtls_ecp_mul_shortcuts( mbedtls_ecp_group *grp,
 
     if( mbedtls_mpi_cmp_int( m, 0 ) == 0 )
     {
+        MBEDTLS_MPI_CHK( mbedtls_ecp_check_pubkey( grp, P ) );
         MBEDTLS_MPI_CHK( mbedtls_ecp_set_zero( R ) );
     }
     else if( mbedtls_mpi_cmp_int( m, 1 ) == 0 )
     {
+        MBEDTLS_MPI_CHK( mbedtls_ecp_check_pubkey( grp, P ) );
         MBEDTLS_MPI_CHK( mbedtls_ecp_copy( R, P ) );
     }
     else if( mbedtls_mpi_cmp_int( m, -1 ) == 0 )
     {
+        MBEDTLS_MPI_CHK( mbedtls_ecp_check_pubkey( grp, P ) );
         MBEDTLS_MPI_CHK( mbedtls_ecp_copy( R, P ) );
         if( mbedtls_mpi_cmp_int( &R->Y, 0 ) != 0 )
             MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &R->Y, &grp->P, &R->Y ) );
diff --git a/thirdparty/mbedtls/library/ecp_curves.c b/thirdparty/mbedtls/library/ecp_curves.c
index 2199be646..47761eef4 100644
--- a/thirdparty/mbedtls/library/ecp_curves.c
+++ b/thirdparty/mbedtls/library/ecp_curves.c
@@ -38,11 +38,6 @@
 #define ECP_VALIDATE( cond )        \
     MBEDTLS_INTERNAL_VALIDATE( cond )
 
-#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
-    !defined(inline) && !defined(__cplusplus)
-#define inline __inline
-#endif
-
 #define ECP_MPI_INIT(s, n, p) {s, (n), (mbedtls_mpi_uint *)(p)}
 
 #define ECP_MPI_INIT_ARRAY(x)   \
diff --git a/thirdparty/mbedtls/library/entropy.c b/thirdparty/mbedtls/library/entropy.c
index 12fd3b9b5..e3b337ff3 100644
--- a/thirdparty/mbedtls/library/entropy.c
+++ b/thirdparty/mbedtls/library/entropy.c
@@ -38,18 +38,9 @@
 #include <stdio.h>
 #endif
 
-#if defined(MBEDTLS_ENTROPY_NV_SEED)
 #include "mbedtls/platform.h"
-#endif
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf     printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #if defined(MBEDTLS_HAVEGE_C)
 #include "mbedtls/havege.h"
diff --git a/thirdparty/mbedtls/library/entropy_poll.c b/thirdparty/mbedtls/library/entropy_poll.c
index 40f23fd2a..69ac29e4f 100644
--- a/thirdparty/mbedtls/library/entropy_poll.c
+++ b/thirdparty/mbedtls/library/entropy_poll.c
@@ -38,9 +38,7 @@
 #if defined(MBEDTLS_HAVEGE_C)
 #include "mbedtls/havege.h"
 #endif
-#if defined(MBEDTLS_ENTROPY_NV_SEED)
 #include "mbedtls/platform.h"
-#endif
 
 #if !defined(MBEDTLS_NO_PLATFORM_ENTROPY)
 
diff --git a/thirdparty/mbedtls/library/error.c b/thirdparty/mbedtls/library/error.c
index afad38904..8573369a3 100644
--- a/thirdparty/mbedtls/library/error.c
+++ b/thirdparty/mbedtls/library/error.c
@@ -25,11 +25,7 @@
 
 #if defined(MBEDTLS_ERROR_C)
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#define mbedtls_snprintf snprintf
-#endif
 
 #include <stdio.h>
 #include <string.h>
@@ -961,7 +957,7 @@ void mbedtls_strerror( int ret, char *buf, size_t buflen )
 #else /* MBEDTLS_ERROR_C */
 
 /*
- * Provide an non-function in case MBEDTLS_ERROR_C is not defined
+ * Provide a dummy implementation when MBEDTLS_ERROR_C is not defined
  */
 void mbedtls_strerror( int ret, char *buf, size_t buflen )
 {
diff --git a/thirdparty/mbedtls/library/gcm.c b/thirdparty/mbedtls/library/gcm.c
index 43a5e1bec..d0b73379a 100644
--- a/thirdparty/mbedtls/library/gcm.c
+++ b/thirdparty/mbedtls/library/gcm.c
@@ -32,6 +32,7 @@
 #if defined(MBEDTLS_GCM_C)
 
 #include "mbedtls/gcm.h"
+#include "mbedtls/platform.h"
 #include "mbedtls/platform_util.h"
 #include "mbedtls/error.h"
 
@@ -41,15 +42,6 @@
 #include "mbedtls/aesni.h"
 #endif
 
-#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
-#include "mbedtls/aes.h"
-#include "mbedtls/platform.h"
-#if !defined(MBEDTLS_PLATFORM_C)
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
-
 #if !defined(MBEDTLS_GCM_ALT)
 
 /* Parameter validation macros */
diff --git a/thirdparty/mbedtls/library/hmac_drbg.c b/thirdparty/mbedtls/library/hmac_drbg.c
index de9706885..69272fa73 100644
--- a/thirdparty/mbedtls/library/hmac_drbg.c
+++ b/thirdparty/mbedtls/library/hmac_drbg.c
@@ -37,14 +37,7 @@
 #include <stdio.h>
 #endif
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_SELF_TEST */
-#endif /* MBEDTLS_PLATFORM_C */
 
 /*
  * HMAC_DRBG context initialization
diff --git a/thirdparty/mbedtls/library/md.c b/thirdparty/mbedtls/library/md.c
index a10a83563..53a84b01c 100644
--- a/thirdparty/mbedtls/library/md.c
+++ b/thirdparty/mbedtls/library/md.c
@@ -38,13 +38,7 @@
 #include "mbedtls/sha256.h"
 #include "mbedtls/sha512.h"
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif
 
 #include <string.h>
 
diff --git a/thirdparty/mbedtls/library/md2.c b/thirdparty/mbedtls/library/md2.c
index 7264e3031..f8293a1df 100644
--- a/thirdparty/mbedtls/library/md2.c
+++ b/thirdparty/mbedtls/library/md2.c
@@ -33,14 +33,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #if !defined(MBEDTLS_MD2_ALT)
 
diff --git a/thirdparty/mbedtls/library/md4.c b/thirdparty/mbedtls/library/md4.c
index eaa679a0a..a41221348 100644
--- a/thirdparty/mbedtls/library/md4.c
+++ b/thirdparty/mbedtls/library/md4.c
@@ -33,14 +33,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #if !defined(MBEDTLS_MD4_ALT)
 
diff --git a/thirdparty/mbedtls/library/md5.c b/thirdparty/mbedtls/library/md5.c
index 4b53fcf36..e53bfe630 100644
--- a/thirdparty/mbedtls/library/md5.c
+++ b/thirdparty/mbedtls/library/md5.c
@@ -32,14 +32,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #if !defined(MBEDTLS_MD5_ALT)
 
diff --git a/thirdparty/mbedtls/library/mps_reader.c b/thirdparty/mbedtls/library/mps_reader.c
index 9af5073cc..0c30a75d0 100644
--- a/thirdparty/mbedtls/library/mps_reader.c
+++ b/thirdparty/mbedtls/library/mps_reader.c
@@ -29,11 +29,6 @@
 
 #include <string.h>
 
-#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
-    !defined(inline) && !defined(__cplusplus)
-#define inline __inline
-#endif
-
 #if defined(MBEDTLS_MPS_ENABLE_TRACE)
 static int mbedtls_mps_trace_id = MBEDTLS_MPS_TRACE_BIT_READER;
 #endif /* MBEDTLS_MPS_ENABLE_TRACE */
@@ -535,7 +530,7 @@ int mbedtls_mps_reader_reclaim( mbedtls_mps_reader *rd,
          * of the accumulator. */
         memmove( acc, acc + acc_backup_offset, acc_backup_len );
 
-        /* Copy uncmmitted parts of the current fragment to the
+        /* Copy uncommitted parts of the current fragment to the
          * accumulator. */
         memcpy( acc + acc_backup_len,
                 frag + frag_backup_offset, frag_backup_len );
diff --git a/thirdparty/mbedtls/library/mps_trace.h b/thirdparty/mbedtls/library/mps_trace.h
index 7c2360118..820a1b66c 100644
--- a/thirdparty/mbedtls/library/mps_trace.h
+++ b/thirdparty/mbedtls/library/mps_trace.h
@@ -30,13 +30,7 @@
 #include "mps_common.h"
 #include "mps_trace.h"
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf    printf
-#define mbedtls_vsnprintf vsnprintf
-#endif /* MBEDTLS_PLATFORM_C */
 
 #if defined(MBEDTLS_MPS_ENABLE_TRACE)
 
diff --git a/thirdparty/mbedtls/library/net_sockets.c b/thirdparty/mbedtls/library/net_sockets.c
index 8c765e1c8..b2cab503f 100644
--- a/thirdparty/mbedtls/library/net_sockets.c
+++ b/thirdparty/mbedtls/library/net_sockets.c
@@ -37,11 +37,7 @@
 #error "This module only works on Unix and Windows, see MBEDTLS_NET_C in config.h"
 #endif
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#endif
 
 #include "mbedtls/net_sockets.h"
 #include "mbedtls/error.h"
diff --git a/thirdparty/mbedtls/library/nist_kw.c b/thirdparty/mbedtls/library/nist_kw.c
index 1aea0b634..495c23d06 100644
--- a/thirdparty/mbedtls/library/nist_kw.c
+++ b/thirdparty/mbedtls/library/nist_kw.c
@@ -39,14 +39,7 @@
 #include <stdint.h>
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
 
 #if !defined(MBEDTLS_NIST_KW_ALT)
 
diff --git a/thirdparty/mbedtls/library/oid.c b/thirdparty/mbedtls/library/oid.c
index 19c8ac207..53e5350eb 100644
--- a/thirdparty/mbedtls/library/oid.c
+++ b/thirdparty/mbedtls/library/oid.c
@@ -30,11 +30,7 @@
 #include <stdio.h>
 #include <string.h>
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#define mbedtls_snprintf snprintf
-#endif
 
 /*
  * Macro to automatically add the size of #define'd OIDs
diff --git a/thirdparty/mbedtls/library/pem.c b/thirdparty/mbedtls/library/pem.c
index fcfde9479..cb1c82b3e 100644
--- a/thirdparty/mbedtls/library/pem.c
+++ b/thirdparty/mbedtls/library/pem.c
@@ -32,13 +32,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif
 
 #if defined(MBEDTLS_PEM_PARSE_C)
 void mbedtls_pem_init( mbedtls_pem_context *ctx )
diff --git a/thirdparty/mbedtls/library/pk_wrap.c b/thirdparty/mbedtls/library/pk_wrap.c
index 107e912ac..f35abf21a 100644
--- a/thirdparty/mbedtls/library/pk_wrap.c
+++ b/thirdparty/mbedtls/library/pk_wrap.c
@@ -50,13 +50,7 @@
 #include "mbedtls/asn1.h"
 #endif
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif
 
 #include <limits.h>
 #include <stdint.h>
@@ -872,7 +866,7 @@ static void *pk_opaque_alloc_wrap( void )
 {
     void *ctx = mbedtls_calloc( 1, sizeof( psa_key_id_t ) );
 
-    /* no _init() function to call, an calloc() already zeroized */
+    /* no _init() function to call, as calloc() already zeroized */
 
     return( ctx );
 }
diff --git a/thirdparty/mbedtls/library/pkcs11.c b/thirdparty/mbedtls/library/pkcs11.c
index 4deccf3f6..a7207cfc9 100644
--- a/thirdparty/mbedtls/library/pkcs11.c
+++ b/thirdparty/mbedtls/library/pkcs11.c
@@ -29,13 +29,7 @@
 #include "mbedtls/oid.h"
 #include "mbedtls/x509_crt.h"
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif
 
 #include <string.h>
 
diff --git a/thirdparty/mbedtls/library/pkcs5.c b/thirdparty/mbedtls/library/pkcs5.c
index 2b014d91c..f9d01371a 100644
--- a/thirdparty/mbedtls/library/pkcs5.c
+++ b/thirdparty/mbedtls/library/pkcs5.c
@@ -42,12 +42,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif
 
 #if defined(MBEDTLS_ASN1_PARSE_C)
 static int pkcs5_parse_pbkdf2_params( const mbedtls_asn1_buf *params,
diff --git a/thirdparty/mbedtls/library/pkparse.c b/thirdparty/mbedtls/library/pkparse.c
index ea5c6b69c..6170d6d01 100644
--- a/thirdparty/mbedtls/library/pkparse.c
+++ b/thirdparty/mbedtls/library/pkparse.c
@@ -48,13 +48,7 @@
 #include "mbedtls/pkcs12.h"
 #endif
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif
 
 /* Parameter validation macros based on platform_util.h */
 #define PK_VALIDATE_RET( cond )    \
diff --git a/thirdparty/mbedtls/library/pkwrite.c b/thirdparty/mbedtls/library/pkwrite.c
index 566153dd9..c1ce0e3f0 100644
--- a/thirdparty/mbedtls/library/pkwrite.c
+++ b/thirdparty/mbedtls/library/pkwrite.c
@@ -48,13 +48,7 @@
 #include "psa/crypto.h"
 #include "mbedtls/psa_util.h"
 #endif
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif
 
 /* Parameter validation macros based on platform_util.h */
 #define PK_VALIDATE_RET( cond )    \
diff --git a/thirdparty/mbedtls/library/poly1305.c b/thirdparty/mbedtls/library/poly1305.c
index 7375a0c57..a1c5b19d8 100644
--- a/thirdparty/mbedtls/library/poly1305.c
+++ b/thirdparty/mbedtls/library/poly1305.c
@@ -28,22 +28,10 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #if !defined(MBEDTLS_POLY1305_ALT)
 
-#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
-    !defined(inline) && !defined(__cplusplus)
-#define inline __inline
-#endif
-
 /* Parameter validation macros */
 #define POLY1305_VALIDATE_RET( cond )                                       \
     MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA )
diff --git a/thirdparty/mbedtls/library/ripemd160.c b/thirdparty/mbedtls/library/ripemd160.c
index aed7322cf..55e259e19 100644
--- a/thirdparty/mbedtls/library/ripemd160.c
+++ b/thirdparty/mbedtls/library/ripemd160.c
@@ -33,14 +33,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #if !defined(MBEDTLS_RIPEMD160_ALT)
 
diff --git a/thirdparty/mbedtls/library/rsa.c b/thirdparty/mbedtls/library/rsa.c
index d1f6ddb17..9c39fa5d9 100644
--- a/thirdparty/mbedtls/library/rsa.c
+++ b/thirdparty/mbedtls/library/rsa.c
@@ -57,14 +57,7 @@
 #include <stdlib.h>
 #endif
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#define mbedtls_calloc calloc
-#define mbedtls_free   free
-#endif
 
 #if !defined(MBEDTLS_RSA_ALT)
 
diff --git a/thirdparty/mbedtls/library/sha1.c b/thirdparty/mbedtls/library/sha1.c
index 0a5edafaf..7f0c8757d 100644
--- a/thirdparty/mbedtls/library/sha1.c
+++ b/thirdparty/mbedtls/library/sha1.c
@@ -32,14 +32,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #define SHA1_VALIDATE_RET(cond)                             \
     MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_SHA1_BAD_INPUT_DATA )
diff --git a/thirdparty/mbedtls/library/sha256.c b/thirdparty/mbedtls/library/sha256.c
index db675efd1..6f1306ee6 100644
--- a/thirdparty/mbedtls/library/sha256.c
+++ b/thirdparty/mbedtls/library/sha256.c
@@ -32,17 +32,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_printf printf
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #define SHA256_VALIDATE_RET(cond)                           \
     MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_SHA256_BAD_INPUT_DATA )
diff --git a/thirdparty/mbedtls/library/sha512.c b/thirdparty/mbedtls/library/sha512.c
index 02a135ca9..1a6872c8a 100644
--- a/thirdparty/mbedtls/library/sha512.c
+++ b/thirdparty/mbedtls/library/sha512.c
@@ -38,17 +38,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_printf printf
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #define SHA512_VALIDATE_RET(cond)                           \
     MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_SHA512_BAD_INPUT_DATA )
@@ -428,9 +418,11 @@ int mbedtls_sha512_finish_ret( mbedtls_sha512_context *ctx,
     sha512_put_uint64_be( ctx->state[4], output, 32 );
     sha512_put_uint64_be( ctx->state[5], output, 40 );
 
+    int truncated = 0;
 #if !defined(MBEDTLS_SHA512_NO_SHA384)
-    if( ctx->is384 == 0 )
+    truncated = ctx->is384;
 #endif
+    if( !truncated )
     {
         sha512_put_uint64_be( ctx->state[6], output, 48 );
         sha512_put_uint64_be( ctx->state[7], output, 56 );
diff --git a/thirdparty/mbedtls/library/ssl_cache.c b/thirdparty/mbedtls/library/ssl_cache.c
index 32188cf3f..7a600cad1 100644
--- a/thirdparty/mbedtls/library/ssl_cache.c
+++ b/thirdparty/mbedtls/library/ssl_cache.c
@@ -25,13 +25,7 @@
 
 #if defined(MBEDTLS_SSL_CACHE_C)
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free      free
-#endif
 
 #include "mbedtls/ssl_cache.h"
 #include "mbedtls/ssl_internal.h"
diff --git a/thirdparty/mbedtls/library/ssl_ciphersuites.c b/thirdparty/mbedtls/library/ssl_ciphersuites.c
index ceec77efb..2bc8a9bba 100644
--- a/thirdparty/mbedtls/library/ssl_ciphersuites.c
+++ b/thirdparty/mbedtls/library/ssl_ciphersuites.c
@@ -23,11 +23,7 @@
 
 #if defined(MBEDTLS_SSL_TLS_C)
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#endif
 
 #include "mbedtls/ssl_ciphersuites.h"
 #include "mbedtls/ssl.h"
diff --git a/thirdparty/mbedtls/library/ssl_cli.c b/thirdparty/mbedtls/library/ssl_cli.c
index 72351c975..b40ddb70b 100644
--- a/thirdparty/mbedtls/library/ssl_cli.c
+++ b/thirdparty/mbedtls/library/ssl_cli.c
@@ -21,13 +21,7 @@
 
 #if defined(MBEDTLS_SSL_CLI_C)
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free      free
-#endif
 
 #include "mbedtls/ssl.h"
 #include "mbedtls/ssl_internal.h"
@@ -174,7 +168,7 @@ static int ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl,
 
     *olen = 0;
 
-    /* We're always including an TLS_EMPTY_RENEGOTIATION_INFO_SCSV in the
+    /* We're always including a TLS_EMPTY_RENEGOTIATION_INFO_SCSV in the
      * initial ClientHello, in which case also adding the renegotiation
      * info extension is NOT RECOMMENDED as per RFC 5746 Section 3.4. */
     if( ssl->renego_status != MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
@@ -1004,9 +998,12 @@ static int ssl_write_client_hello( mbedtls_ssl_context *ssl )
         return( MBEDTLS_ERR_SSL_NO_RNG );
     }
 
+    int renegotiating = 0;
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE )
+    if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
+        renegotiating = 1;
 #endif
+    if( !renegotiating )
     {
         ssl->major_ver = ssl->conf->min_major_ver;
         ssl->minor_ver = ssl->conf->min_minor_ver;
@@ -1092,9 +1089,7 @@ static int ssl_write_client_hello( mbedtls_ssl_context *ssl )
      * RFC 5077 section 3.4: "When presenting a ticket, the client MAY
      * generate and include a Session ID in the TLS ClientHello."
      */
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE )
-#endif
+    if( !renegotiating )
     {
         if( ssl->session_negotiate->ticket != NULL &&
                 ssl->session_negotiate->ticket_len != 0 )
@@ -1209,9 +1204,7 @@ static int ssl_write_client_hello( mbedtls_ssl_context *ssl )
     /*
      * Add TLS_EMPTY_RENEGOTIATION_INFO_SCSV
      */
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE )
-#endif
+    if( !renegotiating )
     {
         MBEDTLS_SSL_DEBUG_MSG( 3, ( "adding EMPTY_RENEGOTIATION_INFO_SCSV" ) );
         MBEDTLS_SSL_CHK_BUF_PTR( p, end, 2 );
@@ -2062,6 +2055,30 @@ static int ssl_parse_hello_verify_request( mbedtls_ssl_context *ssl )
 }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
+static int is_compression_bad( mbedtls_ssl_context *ssl, unsigned char comp )
+{
+    int bad_comp = 0;
+
+    /* Suppress warnings in some configurations */
+    (void) ssl;
+#if defined(MBEDTLS_ZLIB_SUPPORT)
+    /* See comments in ssl_write_client_hello() */
+#if defined(MBEDTLS_SSL_PROTO_DTLS)
+    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+        comp != MBEDTLS_SSL_COMPRESS_NULL )
+        bad_comp = 1;
+#endif
+
+    if( comp != MBEDTLS_SSL_COMPRESS_NULL &&
+        comp != MBEDTLS_SSL_COMPRESS_DEFLATE )
+        bad_comp = 1;
+#else /* MBEDTLS_ZLIB_SUPPORT */
+    if( comp != MBEDTLS_SSL_COMPRESS_NULL )
+        bad_comp = 1;
+#endif/* MBEDTLS_ZLIB_SUPPORT */
+    return bad_comp;
+}
+
 MBEDTLS_CHECK_RETURN_CRITICAL
 static int ssl_parse_server_hello( mbedtls_ssl_context *ssl )
 {
@@ -2070,9 +2087,6 @@ static int ssl_parse_server_hello( mbedtls_ssl_context *ssl )
     size_t ext_len;
     unsigned char *buf, *ext;
     unsigned char comp;
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    int accept_comp;
-#endif
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
     int renegotiation_info_seen = 0;
 #endif
@@ -2241,20 +2255,7 @@ static int ssl_parse_server_hello( mbedtls_ssl_context *ssl )
      */
     comp = buf[37 + n];
 
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    /* See comments in ssl_write_client_hello() */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        accept_comp = 0;
-    else
-#endif
-        accept_comp = 1;
-
-    if( comp != MBEDTLS_SSL_COMPRESS_NULL &&
-        ( comp != MBEDTLS_SSL_COMPRESS_DEFLATE || accept_comp == 0 ) )
-#else /* MBEDTLS_ZLIB_SUPPORT */
-    if( comp != MBEDTLS_SSL_COMPRESS_NULL )
-#endif/* MBEDTLS_ZLIB_SUPPORT */
+    if( is_compression_bad( ssl, comp ) )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1,
             ( "server hello, bad compression: %d", comp ) );
@@ -2687,7 +2688,7 @@ static int ssl_check_server_ecdh_params( const mbedtls_ssl_context *ssl )
     grp_id = ssl->handshake->ecdh_ctx.grp.id;
 #else
     grp_id = ssl->handshake->ecdh_ctx.grp_id;
-#endif
+#endif /* MBEDTLS_ECDH_LEGACY_CONTEXT */
 
     curve_info = mbedtls_ecp_curve_info_from_grp_id( grp_id );
     if( curve_info == NULL )
@@ -2700,11 +2701,12 @@ static int ssl_check_server_ecdh_params( const mbedtls_ssl_context *ssl )
 
 #if defined(MBEDTLS_ECP_C)
     if( mbedtls_ssl_check_curve( ssl, grp_id ) != 0 )
+        return( -1 );
 #else
     if( ssl->handshake->ecdh_ctx.grp.nbits < 163 ||
         ssl->handshake->ecdh_ctx.grp.nbits > 521 )
-#endif
         return( -1 );
+#endif /* MBEDTLS_ECP_C */
 
     MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
                             MBEDTLS_DEBUG_ECDH_QP );
@@ -2858,8 +2860,8 @@ static int ssl_parse_server_psk_hint( mbedtls_ssl_context *ssl,
     }
 
     /*
-     * Note: we currently ignore the PKS identity hint, as we only allow one
-     * PSK to be provisionned on the client. This could be changed later if
+     * Note: we currently ignore the PSK identity hint, as we only allow one
+     * PSK to be provisioned on the client. This could be changed later if
      * someone needs that feature.
      */
     *p += len;
@@ -3452,23 +3454,23 @@ start_processing:
 #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED)
         if( ssl->handshake->ecrs_enabled )
             rs_ctx = &ssl->handshake->ecrs_ctx.pk;
-#endif
+#endif /* MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED */
 
         if( ( ret = mbedtls_pk_verify_restartable( peer_pk,
                         md_alg, hash, hashlen, p, sig_len, rs_ctx ) ) != 0 )
         {
-#if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED)
-            if( ret != MBEDTLS_ERR_ECP_IN_PROGRESS )
-#endif
-                mbedtls_ssl_send_alert_message(
-                    ssl,
-                    MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                    MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR );
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret );
 #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED)
             if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
-                ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS;
-#endif
+            {
+                MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret );
+                return( MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS );
+            }
+#endif /* MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED */
+            mbedtls_ssl_send_alert_message(
+                ssl,
+                MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR );
+            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret );
             return( ret );
         }
 
diff --git a/thirdparty/mbedtls/library/ssl_cookie.c b/thirdparty/mbedtls/library/ssl_cookie.c
index 3781796b7..f12f28e84 100644
--- a/thirdparty/mbedtls/library/ssl_cookie.c
+++ b/thirdparty/mbedtls/library/ssl_cookie.c
@@ -25,12 +25,7 @@
 
 #if defined(MBEDTLS_SSL_COOKIE_C)
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#define mbedtls_calloc    calloc
-#define mbedtls_free      free
-#endif
 
 #include "mbedtls/ssl_cookie.h"
 #include "mbedtls/ssl_internal.h"
diff --git a/thirdparty/mbedtls/library/ssl_msg.c b/thirdparty/mbedtls/library/ssl_msg.c
index e47c53888..d7bebe04d 100644
--- a/thirdparty/mbedtls/library/ssl_msg.c
+++ b/thirdparty/mbedtls/library/ssl_msg.c
@@ -30,13 +30,7 @@
 
 #if defined(MBEDTLS_SSL_TLS_C)
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free      free
-#endif
 
 #include "mbedtls/ssl.h"
 #include "mbedtls/ssl_internal.h"
@@ -441,9 +435,12 @@ static void ssl_extract_add_data_from_record( unsigned char* add_data,
 
     unsigned char *cur = add_data;
 
+    int is_tls13 = 0;
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL)
-    if( minor_ver != MBEDTLS_SSL_MINOR_VERSION_4 )
+    if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_4 )
+        is_tls13 = 1;
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL */
+    if( !is_tls13 )
     {
         ((void) minor_ver);
         memcpy( cur, rec->ctr, sizeof( rec->ctr ) );
@@ -1887,8 +1884,7 @@ int mbedtls_ssl_fetch_input( mbedtls_ssl_context *ssl, size_t nb_want )
 
     if( ssl->f_recv == NULL && ssl->f_recv_timeout == NULL )
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Bad usage of mbedtls_ssl_set_bio() "
-                            "or mbedtls_ssl_set_bio()" ) );
+        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Bad usage of mbedtls_ssl_set_bio() " ) );
         return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
     }
 
@@ -2103,8 +2099,7 @@ int mbedtls_ssl_flush_output( mbedtls_ssl_context *ssl )
 
     if( ssl->f_send == NULL )
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Bad usage of mbedtls_ssl_set_bio() "
-                            "or mbedtls_ssl_set_bio()" ) );
+        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Bad usage of mbedtls_ssl_set_bio() " ) );
         return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
     }
 
@@ -3950,8 +3945,8 @@ int mbedtls_ssl_read_record( mbedtls_ssl_context *ssl,
 
             if( ssl_record_is_in_progress( ssl ) == 0 )
             {
+                int dtls_have_buffered = 0;
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-                int have_buffered = 0;
 
                 /* We only check for buffered messages if the
                  * current datagram is fully consumed. */
@@ -3959,11 +3954,11 @@ int mbedtls_ssl_read_record( mbedtls_ssl_context *ssl,
                     ssl_next_record_is_in_datagram( ssl ) == 0 )
                 {
                     if( ssl_load_buffered_message( ssl ) == 0 )
-                        have_buffered = 1;
+                        dtls_have_buffered = 1;
                 }
 
-                if( have_buffered == 0 )
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
+                if( dtls_have_buffered == 0 )
                 {
                     ret = ssl_get_next_record( ssl );
                     if( ret == MBEDTLS_ERR_SSL_CONTINUE_PROCESSING )
@@ -4037,7 +4032,7 @@ static int ssl_load_buffered_message( mbedtls_ssl_context *ssl )
     if( hs == NULL )
         return( -1 );
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_load_buffered_messsage" ) );
+    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_load_buffered_message" ) );
 
     if( ssl->state == MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC ||
         ssl->state == MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC )
diff --git a/thirdparty/mbedtls/library/ssl_srv.c b/thirdparty/mbedtls/library/ssl_srv.c
index 2efb13cc3..0563c0b59 100644
--- a/thirdparty/mbedtls/library/ssl_srv.c
+++ b/thirdparty/mbedtls/library/ssl_srv.c
@@ -21,13 +21,7 @@
 
 #if defined(MBEDTLS_SSL_SRV_C)
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free      free
-#endif
 
 #include "mbedtls/ssl.h"
 #include "mbedtls/ssl_internal.h"
@@ -1460,6 +1454,7 @@ static int ssl_parse_client_hello( mbedtls_ssl_context *ssl )
 
     MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse client hello" ) );
 
+    int renegotiating = 0;
 #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
 read_record_header:
 #endif
@@ -1469,8 +1464,10 @@ read_record_header:
      * ClientHello, which doesn't use the same record layer format.
      */
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE )
+    if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
+        renegotiating = 1;
 #endif
+    if( !renegotiating )
     {
         if( ( ret = mbedtls_ssl_fetch_input( ssl, 5 ) ) != 0 )
         {
@@ -1483,9 +1480,12 @@ read_record_header:
     buf = ssl->in_hdr;
 
 #if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO)
+    int is_dtls = 0;
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_STREAM )
+    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
+        is_dtls = 1;
 #endif
+    if( !is_dtls )
         if( ( buf[0] & 0x80 ) != 0 )
             return( ssl_parse_client_hello_v2( ssl ) );
 #endif
@@ -3903,8 +3903,14 @@ static int ssl_decrypt_encrypted_pms( mbedtls_ssl_context *ssl,
                                       size_t peer_pmssize )
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+
+    mbedtls_x509_crt *own_cert = mbedtls_ssl_own_cert( ssl );
+    if( own_cert == NULL ) {
+        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no local certificate" ) );
+        return( MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE );
+    }
+    mbedtls_pk_context *public_key = &own_cert->pk;
     mbedtls_pk_context *private_key = mbedtls_ssl_own_key( ssl );
-    mbedtls_pk_context *public_key = &mbedtls_ssl_own_cert( ssl )->pk;
     size_t len = mbedtls_pk_get_len( public_key );
 
 #if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
diff --git a/thirdparty/mbedtls/library/ssl_ticket.c b/thirdparty/mbedtls/library/ssl_ticket.c
index e0126cc9d..8a57789f1 100644
--- a/thirdparty/mbedtls/library/ssl_ticket.c
+++ b/thirdparty/mbedtls/library/ssl_ticket.c
@@ -21,13 +21,7 @@
 
 #if defined(MBEDTLS_SSL_TICKET_C)
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free      free
-#endif
 
 #include "mbedtls/ssl_internal.h"
 #include "mbedtls/ssl_ticket.h"
@@ -152,27 +146,45 @@ int mbedtls_ssl_ticket_setup( mbedtls_ssl_ticket_context *ctx,
     if( cipher_info->key_bitlen > 8 * MAX_KEY_BYTES )
         return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
 
+    int do_mbedtls_cipher_setup = 1;
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     ret = mbedtls_cipher_setup_psa( &ctx->keys[0].ctx,
                                     cipher_info, TICKET_AUTH_TAG_BYTES );
-    if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
-        return( ret );
-    /* We don't yet expect to support all ciphers through PSA,
-     * so allow fallback to ordinary mbedtls_cipher_setup(). */
-    if( ret == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( ( ret = mbedtls_cipher_setup( &ctx->keys[0].ctx, cipher_info ) ) != 0 )
-        return( ret );
 
+    switch( ret )
+    {
+        case 0:
+            do_mbedtls_cipher_setup = 0;
+            break;
+        case MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE:
+            /* We don't yet expect to support all ciphers through PSA,
+             * so allow fallback to ordinary mbedtls_cipher_setup(). */
+            do_mbedtls_cipher_setup = 1;
+            break;
+        default:
+            return( ret );
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+    if( do_mbedtls_cipher_setup )
+        if( ( ret = mbedtls_cipher_setup( &ctx->keys[0].ctx, cipher_info ) )
+                != 0 )
+            return( ret );
+
+    do_mbedtls_cipher_setup = 1;
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
+    do_mbedtls_cipher_setup = 0;
+
     ret = mbedtls_cipher_setup_psa( &ctx->keys[1].ctx,
                                     cipher_info, TICKET_AUTH_TAG_BYTES );
     if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
         return( ret );
     if( ret == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
+        do_mbedtls_cipher_setup = 1;
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( ( ret = mbedtls_cipher_setup( &ctx->keys[1].ctx, cipher_info ) ) != 0 )
-        return( ret );
+    if( do_mbedtls_cipher_setup )
+        if( ( ret = mbedtls_cipher_setup( &ctx->keys[1].ctx, cipher_info ) )
+                != 0 )
+            return( ret );
 
     if( ( ret = ssl_ticket_gen_key( ctx, 0 ) ) != 0 ||
         ( ret = ssl_ticket_gen_key( ctx, 1 ) ) != 0 )
diff --git a/thirdparty/mbedtls/library/ssl_tls.c b/thirdparty/mbedtls/library/ssl_tls.c
index 7badec51a..70196a486 100644
--- a/thirdparty/mbedtls/library/ssl_tls.c
+++ b/thirdparty/mbedtls/library/ssl_tls.c
@@ -29,13 +29,7 @@
 
 #if defined(MBEDTLS_SSL_TLS_C)
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free      free
-#endif
 
 #include "mbedtls/ssl.h"
 #include "mbedtls/ssl_internal.h"
@@ -766,7 +760,9 @@ static int tls_prf_generic( mbedtls_md_type_t md_type,
 exit:
     mbedtls_md_free( &md_ctx );
 
-    mbedtls_platform_zeroize( tmp, tmp_len );
+    if ( tmp != NULL )
+        mbedtls_platform_zeroize( tmp, tmp_len );
+
     mbedtls_platform_zeroize( h_i, sizeof( h_i ) );
 
     mbedtls_free( tmp );
@@ -985,6 +981,7 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform,
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     int psa_fallthrough;
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
+    int do_mbedtls_cipher_setup;
     unsigned char keyblk[256];
     unsigned char *key1;
     unsigned char *key2;
@@ -1363,6 +1360,7 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform,
     }
 #endif
 
+    do_mbedtls_cipher_setup = 1;
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
 
     /* Only use PSA-based ciphers for TLS-1.2.
@@ -1398,15 +1396,18 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform,
     psa_fallthrough = 1;
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
-    if( psa_fallthrough == 1 )
+    if( psa_fallthrough == 0 )
+        do_mbedtls_cipher_setup = 0;
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_enc,
-                                 cipher_info ) ) != 0 )
+    if( do_mbedtls_cipher_setup &&
+            ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_enc,
+                                          cipher_info ) ) != 0 )
     {
         MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret );
         goto end;
     }
 
+    do_mbedtls_cipher_setup = 1;
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     /* Only use PSA-based ciphers for TLS-1.2.
      * That's relevant at least for TLS-1.0, where
@@ -1441,10 +1442,12 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform,
     psa_fallthrough = 1;
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
-    if( psa_fallthrough == 1 )
+    if( psa_fallthrough == 0 )
+        do_mbedtls_cipher_setup = 0;
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_dec,
-                                 cipher_info ) ) != 0 )
+    if( do_mbedtls_cipher_setup &&
+            ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_dec,
+                                          cipher_info ) ) != 0 )
     {
         MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret );
         goto end;
@@ -3411,7 +3414,7 @@ static void ssl_calc_finished_tls_sha384(
                    sha512.state, sizeof( sha512.state ) );
 #endif
     /* mbedtls_sha512_finish_ret's output parameter is declared as a
-     * 64-byte buffer, but sice we're using SHA-384, we know that the
+     * 64-byte buffer, but since we're using SHA-384, we know that the
      * output fits in 48 bytes. This is correct C, but GCC 11.1 warns
      * about it.
      */
@@ -4089,9 +4092,12 @@ int mbedtls_ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial )
 
     memset( ssl->out_buf, 0, out_buf_len );
 
+    int clear_in_buf = 1;
 #if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C)
-    if( partial == 0 )
+    if( partial != 0 )
+        clear_in_buf = 0;
 #endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */
+    if( clear_in_buf )
     {
         ssl->in_left = 0;
         memset( ssl->in_buf, 0, in_buf_len );
@@ -4128,9 +4134,12 @@ int mbedtls_ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial )
 #endif
 
 #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
+    int free_cli_id = 1;
 #if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE)
-    if( partial == 0 )
+    if( partial != 0 )
+        free_cli_id = 0;
 #endif
+    if( free_cli_id )
     {
         mbedtls_free( ssl->cli_id );
         ssl->cli_id = NULL;
@@ -4471,7 +4480,7 @@ static void ssl_conf_remove_psk( mbedtls_ssl_config *conf )
         conf->psk_opaque = MBEDTLS_SVC_KEY_ID_INIT;
     }
     /* This and the following branch should never
-     * be taken simultaenously as we maintain the
+     * be taken simultaneously as we maintain the
      * invariant that raw and opaque PSKs are never
      * configured simultaneously. As a safeguard,
      * though, `else` is omitted here. */
@@ -6335,7 +6344,7 @@ int mbedtls_ssl_context_save( mbedtls_ssl_context *ssl,
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "There is pending outgoing data" ) );
         return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
     }
-    /* Protocol must be DLTS, not TLS */
+    /* Protocol must be DTLS, not TLS */
     if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "Only DTLS is supported" ) );
@@ -6510,24 +6519,41 @@ int mbedtls_ssl_context_save( mbedtls_ssl_context *ssl,
  * Helper to get TLS 1.2 PRF from ciphersuite
  * (Duplicates bits of logic from ssl_set_handshake_prfs().)
  */
+#if defined(MBEDTLS_SHA256_C) || \
+    (defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384))
 typedef int (*tls_prf_fn)( const unsigned char *secret, size_t slen,
                            const char *label,
                            const unsigned char *random, size_t rlen,
                            unsigned char *dstbuf, size_t dlen );
 static tls_prf_fn ssl_tls12prf_from_cs( int ciphersuite_id )
 {
-#if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
     const mbedtls_ssl_ciphersuite_t * const ciphersuite_info =
          mbedtls_ssl_ciphersuite_from_id( ciphersuite_id );
 
+    if( ciphersuite_info == NULL )
+        return( NULL );
+
+#if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
     if( ciphersuite_info->mac == MBEDTLS_MD_SHA384 )
         return( tls_prf_sha384 );
-#else
-    (void) ciphersuite_id;
+    else
 #endif
-    return( tls_prf_sha256 );
+#if defined(MBEDTLS_SHA256_C)
+    {
+        if( ciphersuite_info->mac == MBEDTLS_MD_SHA256 )
+            return( tls_prf_sha256 );
+    }
+#endif
+#if !defined(MBEDTLS_SHA256_C) && \
+    (!defined(MBEDTLS_SHA512_C) || defined(MBEDTLS_SHA512_NO_SHA384))
+    (void) ciphersuite_info;
+#endif
+    return( NULL );
 }
 
+#endif /* MBEDTLS_SHA256_C ||
+          (MBEDTLS_SHA512_C && !MBEDTLS_SHA512_NO_SHA384) */
+
 /*
  * Deserialize context, see mbedtls_ssl_context_save() for format.
  *
@@ -6543,6 +6569,7 @@ static int ssl_context_load( mbedtls_ssl_context *ssl,
     const unsigned char * const end = buf + len;
     size_t session_len;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    tls_prf_fn prf_func = NULL;
 
     /*
      * The context should have been freshly setup or reset.
@@ -6630,6 +6657,10 @@ static int ssl_context_load( mbedtls_ssl_context *ssl,
     ssl->transform_out = ssl->transform;
     ssl->transform_negotiate = NULL;
 
+    prf_func = ssl_tls12prf_from_cs( ssl->session->ciphersuite );
+    if( prf_func == NULL )
+        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+
     /* Read random bytes and populate structure */
     if( (size_t)( end - p ) < sizeof( ssl->transform->randbytes ) )
         return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
@@ -6648,7 +6679,7 @@ static int ssl_context_load( mbedtls_ssl_context *ssl,
 #if defined(MBEDTLS_ZLIB_SUPPORT)
                   ssl->session->compression,
 #endif
-                  ssl_tls12prf_from_cs( ssl->session->ciphersuite ),
+                  prf_func,
                   p, /* currently pointing to randbytes */
                   MBEDTLS_SSL_MINOR_VERSION_3, /* (D)TLS 1.2 is forced */
                   ssl->conf->endpoint,
@@ -6921,7 +6952,7 @@ void mbedtls_ssl_free( mbedtls_ssl_context *ssl )
 }
 
 /*
- * Initialze mbedtls_ssl_config
+ * Initialize mbedtls_ssl_config
  */
 void mbedtls_ssl_config_init( mbedtls_ssl_config *conf )
 {
diff --git a/thirdparty/mbedtls/library/ssl_tls13_keys.c b/thirdparty/mbedtls/library/ssl_tls13_keys.c
index 3de6f03fb..cc68773d3 100644
--- a/thirdparty/mbedtls/library/ssl_tls13_keys.c
+++ b/thirdparty/mbedtls/library/ssl_tls13_keys.c
@@ -24,6 +24,7 @@
 #include "mbedtls/hkdf.h"
 #include "mbedtls/ssl_internal.h"
 #include "ssl_tls13_keys.h"
+#include "psa/crypto_sizes.h"
 
 #include <stdint.h>
 #include <string.h>
@@ -31,6 +32,9 @@
 #define MBEDTLS_SSL_TLS1_3_LABEL( name, string )       \
     .name = string,
 
+#define TLS1_3_EVOLVE_INPUT_SIZE ( PSA_HASH_MAX_SIZE > PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE ) ? \
+                                     PSA_HASH_MAX_SIZE : PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE
+
 struct mbedtls_ssl_tls1_3_labels_struct const mbedtls_ssl_tls1_3_labels =
 {
     /* This seems to work in C, despite the string literal being one
@@ -292,8 +296,8 @@ int mbedtls_ssl_tls1_3_evolve_secret(
 {
     int ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     size_t hlen, ilen;
-    unsigned char tmp_secret[ MBEDTLS_MD_MAX_SIZE ] = { 0 };
-    unsigned char tmp_input [ MBEDTLS_MD_MAX_SIZE ] = { 0 };
+    unsigned char tmp_secret[ PSA_MAC_MAX_SIZE ] = { 0 };
+    unsigned char tmp_input [ TLS1_3_EVOLVE_INPUT_SIZE ] = { 0 };
 
     const mbedtls_md_info_t *md;
     md = mbedtls_md_info_from_type( hash_alg );
diff --git a/thirdparty/mbedtls/library/timing.c b/thirdparty/mbedtls/library/timing.c
index 57bc9bcc1..6c14a4fd0 100644
--- a/thirdparty/mbedtls/library/timing.c
+++ b/thirdparty/mbedtls/library/timing.c
@@ -19,12 +19,7 @@
 
 #include "common.h"
 
-#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf     printf
-#endif
 
 #if defined(MBEDTLS_TIMING_C)
 
@@ -267,7 +262,7 @@ static void TimerProc( void *TimerContext )
     Sleep( alarmMs );
     mbedtls_timing_alarmed = 1;
     /* _endthread will be called implicitly on return
-     * That ensures execution of thread funcition's epilogue */
+     * That ensures execution of thread function's epilogue */
 }
 
 void mbedtls_set_alarm( int seconds )
diff --git a/thirdparty/mbedtls/library/x509.c b/thirdparty/mbedtls/library/x509.c
index 3997ebd1f..54c8666d2 100644
--- a/thirdparty/mbedtls/library/x509.c
+++ b/thirdparty/mbedtls/library/x509.c
@@ -43,16 +43,7 @@
 #include "mbedtls/pem.h"
 #endif
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_free      free
-#define mbedtls_calloc    calloc
-#define mbedtls_printf    printf
-#define mbedtls_snprintf  snprintf
-#endif
 
 #if defined(MBEDTLS_HAVE_TIME)
 #include "mbedtls/platform_time.h"
@@ -198,7 +189,7 @@ static int x509_get_hash_alg( const mbedtls_x509_buf *alg, mbedtls_md_type_t *md
  *
  * RFC 4055 (which defines use of RSASSA-PSS in PKIX) states that the value
  * of trailerField MUST be 1, and PKCS#1 v2.2 doesn't even define any other
- * option. Enfore this at parsing time.
+ * option. Enforce this at parsing time.
  */
 int mbedtls_x509_get_rsassa_pss_params( const mbedtls_x509_buf *params,
                                 mbedtls_md_type_t *md_alg, mbedtls_md_type_t *mgf_md,
@@ -424,6 +415,11 @@ static int x509_get_attr_type_value( unsigned char **p,
  * For the general case we still use a flat list, but we mark elements of the
  * same set so that they are "merged" together in the functions that consume
  * this list, eg mbedtls_x509_dn_gets().
+ *
+ * On success, this function may allocate a linked list starting at cur->next
+ * that must later be free'd by the caller using mbedtls_free(). In error
+ * cases, this function frees all allocated memory internally and the caller
+ * has no freeing responsibilities.
  */
 int mbedtls_x509_get_name( unsigned char **p, const unsigned char *end,
                    mbedtls_x509_name *cur )
@@ -431,6 +427,8 @@ int mbedtls_x509_get_name( unsigned char **p, const unsigned char *end,
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t set_len;
     const unsigned char *end_set;
+    mbedtls_x509_name *head = cur;
+    mbedtls_x509_name *prev, *allocated;
 
     /* don't use recursion, we'd risk stack overflow if not optimized */
     while( 1 )
@@ -440,14 +438,17 @@ int mbedtls_x509_get_name( unsigned char **p, const unsigned char *end,
          */
         if( ( ret = mbedtls_asn1_get_tag( p, end, &set_len,
                 MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SET ) ) != 0 )
-            return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_X509_INVALID_NAME, ret ) );
+        {
+            ret = MBEDTLS_ERROR_ADD( MBEDTLS_ERR_X509_INVALID_NAME, ret );
+            goto error;
+        }
 
         end_set  = *p + set_len;
 
         while( 1 )
         {
             if( ( ret = x509_get_attr_type_value( p, end_set, cur ) ) != 0 )
-                return( ret );
+                goto error;
 
             if( *p == end_set )
                 break;
@@ -458,7 +459,10 @@ int mbedtls_x509_get_name( unsigned char **p, const unsigned char *end,
             cur->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_name ) );
 
             if( cur->next == NULL )
-                return( MBEDTLS_ERR_X509_ALLOC_FAILED );
+            {
+                ret = MBEDTLS_ERR_X509_ALLOC_FAILED;
+                goto error;
+            }
 
             cur = cur->next;
         }
@@ -472,10 +476,30 @@ int mbedtls_x509_get_name( unsigned char **p, const unsigned char *end,
         cur->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_name ) );
 
         if( cur->next == NULL )
-            return( MBEDTLS_ERR_X509_ALLOC_FAILED );
+        {
+            ret = MBEDTLS_ERR_X509_ALLOC_FAILED;
+            goto error;
+        }
 
         cur = cur->next;
     }
+
+error:
+    /* Skip the first element as we did not allocate it */
+    allocated = head->next;
+
+    while( allocated != NULL )
+    {
+        prev = allocated;
+        allocated = allocated->next;
+
+        mbedtls_platform_zeroize( prev, sizeof( *prev ) );
+        mbedtls_free( prev );
+    }
+
+    mbedtls_platform_zeroize( head, sizeof( *head ) );
+
+    return( ret );
 }
 
 static int x509_parse_int( unsigned char **p, size_t n, int *res )
diff --git a/thirdparty/mbedtls/library/x509_crl.c b/thirdparty/mbedtls/library/x509_crl.c
index d2d804202..b943a8d6d 100644
--- a/thirdparty/mbedtls/library/x509_crl.c
+++ b/thirdparty/mbedtls/library/x509_crl.c
@@ -1,5 +1,5 @@
 /*
- *  X.509 Certidicate Revocation List (CRL) parsing
+ *  X.509 Certificate Revocation List (CRL) parsing
  *
  *  Copyright The Mbed TLS Contributors
  *  SPDX-License-Identifier: Apache-2.0
@@ -42,15 +42,7 @@
 #include "mbedtls/pem.h"
 #endif
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#include <stdio.h>
-#define mbedtls_free       free
-#define mbedtls_calloc    calloc
-#define mbedtls_snprintf   snprintf
-#endif
 
 #if defined(MBEDTLS_HAVE_TIME)
 #if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
diff --git a/thirdparty/mbedtls/library/x509_crt.c b/thirdparty/mbedtls/library/x509_crt.c
index 96477e4c9..4361f43ed 100644
--- a/thirdparty/mbedtls/library/x509_crt.c
+++ b/thirdparty/mbedtls/library/x509_crt.c
@@ -49,15 +49,7 @@
 #include "mbedtls/psa_util.h"
 #endif
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_free       free
-#define mbedtls_calloc    calloc
-#define mbedtls_snprintf   snprintf
-#endif
 
 #if defined(MBEDTLS_THREADING_C)
 #include "mbedtls/threading.h"
@@ -90,6 +82,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <dirent.h>
+#include <errno.h>
 #endif /* !_WIN32 || EFIX64 || EFI32 */
 #endif
 
@@ -1278,9 +1271,12 @@ static int x509_crt_parse_der_core( mbedtls_x509_crt *crt,
         }
     }
 
+    int extensions_allowed = 1;
 #if !defined(MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3)
-    if( crt->version == 3 )
+    if( crt->version != 3 )
+        extensions_allowed = 0;
 #endif
+    if( extensions_allowed )
     {
         ret = x509_get_crt_ext( &p, end, crt, cb, p_ctx );
         if( ret != 0 )
@@ -1668,8 +1664,22 @@ cleanup:
         }
         else if( stat( entry_name, &sb ) == -1 )
         {
-            ret = MBEDTLS_ERR_X509_FILE_IO_ERROR;
-            goto cleanup;
+            if( errno == ENOENT )
+            {
+                /* Broken symbolic link - ignore this entry.
+                    stat(2) will return this error for either (a) a dangling
+                    symlink or (b) a missing file.
+                    Given that we have just obtained the filename from readdir,
+                    assume that it does exist and therefore treat this as a
+                    dangling symlink. */
+                continue;
+            }
+            else
+            {
+                /* Some other file error; report the error. */
+                ret = MBEDTLS_ERR_X509_FILE_IO_ERROR;
+                goto cleanup;
+            }
         }
 
         if( !S_ISREG( sb.st_mode ) )
@@ -1798,6 +1808,7 @@ static int x509_info_subject_alt_name( char **buf, size_t *size,
                                        const char *prefix )
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    size_t i;
     size_t n = *size;
     char *p = *buf;
     const mbedtls_x509_sequence *cur = subject_alt_name;
@@ -1850,18 +1861,11 @@ static int x509_info_subject_alt_name( char **buf, size_t *size,
                     ret = mbedtls_snprintf( p, n, "\n%s            hardware serial number : ", prefix );
                     MBEDTLS_X509_SAFE_SNPRINTF;
 
-                    if( other_name->value.hardware_module_name.val.len >= n )
+                    for( i = 0; i < other_name->value.hardware_module_name.val.len; i++ )
                     {
-                        *p = '\0';
-                        return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL );
+                        ret = mbedtls_snprintf( p, n, "%02X", other_name->value.hardware_module_name.val.p[i] );
+                        MBEDTLS_X509_SAFE_SNPRINTF;
                     }
-
-                    memcpy( p, other_name->value.hardware_module_name.val.p,
-                            other_name->value.hardware_module_name.val.len );
-                    p += other_name->value.hardware_module_name.val.len;
-
-                    n -= other_name->value.hardware_module_name.val.len;
-
                 }/* MBEDTLS_OID_ON_HW_MODULE_NAME */
             }
             break;
diff --git a/thirdparty/mbedtls/library/x509_csr.c b/thirdparty/mbedtls/library/x509_csr.c
index e259410d0..1a22b7708 100644
--- a/thirdparty/mbedtls/library/x509_csr.c
+++ b/thirdparty/mbedtls/library/x509_csr.c
@@ -42,15 +42,7 @@
 #include "mbedtls/pem.h"
 #endif
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#include <stdio.h>
-#define mbedtls_free       free
-#define mbedtls_calloc    calloc
-#define mbedtls_snprintf   snprintf
-#endif
 
 #if defined(MBEDTLS_FS_IO) || defined(EFIX64) || defined(EFI32)
 #include <stdio.h>
diff --git a/thirdparty/mbedtls/library/x509write_csr.c b/thirdparty/mbedtls/library/x509write_csr.c
index afda95034..707dd001f 100644
--- a/thirdparty/mbedtls/library/x509write_csr.c
+++ b/thirdparty/mbedtls/library/x509write_csr.c
@@ -44,13 +44,7 @@
 #include "mbedtls/pem.h"
 #endif
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free      free
-#endif
 
 void mbedtls_x509write_csr_init( mbedtls_x509write_csr *ctx )
 {
diff --git a/thirdparty/mbedtls/library/xtea.c b/thirdparty/mbedtls/library/xtea.c
index 77f6cb6f6..28e6972aa 100644
--- a/thirdparty/mbedtls/library/xtea.c
+++ b/thirdparty/mbedtls/library/xtea.c
@@ -1,5 +1,5 @@
 /*
- *  An 32-bit implementation of the XTEA algorithm
+ *  A 32-bit implementation of the XTEA algorithm
  *
  *  Copyright The Mbed TLS Contributors
  *  SPDX-License-Identifier: Apache-2.0
@@ -26,14 +26,7 @@
 
 #include <string.h>
 
-#if defined(MBEDTLS_SELF_TEST)
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
-#endif /* MBEDTLS_SELF_TEST */
 
 #if !defined(MBEDTLS_XTEA_ALT)
 
diff --git a/thirdparty/mbedtls/patches/1453.diff b/thirdparty/mbedtls/patches/1453.diff
index b1c9c43ed..4a7ca1570 100644
--- a/thirdparty/mbedtls/patches/1453.diff
+++ b/thirdparty/mbedtls/patches/1453.diff
@@ -1,8 +1,8 @@
-diff --git a/library/entropy_poll.c b/library/entropy_poll.c
-index 4556f88a5..ba56b70f7 100644
---- a/library/entropy_poll.c
-+++ b/library/entropy_poll.c
-@@ -61,28 +61,43 @@
+diff --git a/thirdparty/mbedtls/library/entropy_poll.c b/thirdparty/mbedtls/library/entropy_poll.c
+index a858c1892b..69ac29e4f7 100644
+--- a/thirdparty/mbedtls/library/entropy_poll.c
++++ b/thirdparty/mbedtls/library/entropy_poll.c
+@@ -54,28 +54,43 @@
  #define _WIN32_WINNT 0x0400
  #endif
  #include <windows.h>
@@ -53,12 +53,12 @@ index 4556f88a5..ba56b70f7 100644
      *olen = len;
  
      return( 0 );
-diff --git a/library/x509_crt.c b/library/x509_crt.c
-index 76558342e..35a134950 100644
---- a/library/x509_crt.c
-+++ b/library/x509_crt.c
-@@ -65,6 +65,19 @@
- 
+diff --git a/thirdparty/mbedtls/library/x509_crt.c b/thirdparty/mbedtls/library/x509_crt.c
+index def1414eca..4361f43ed0 100644
+--- a/thirdparty/mbedtls/library/x509_crt.c
++++ b/thirdparty/mbedtls/library/x509_crt.c
+@@ -58,6 +58,19 @@
+ #if defined(MBEDTLS_HAVE_TIME)
  #if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
  #include <windows.h>
 +#if defined(_MSC_VER) && _MSC_VER <= 1600
@@ -77,7 +77,7 @@ index 76558342e..35a134950 100644
  #else
  #include <time.h>
  #endif
-@@ -1278,6 +1291,7 @@ int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path )
+@@ -1549,6 +1562,7 @@ int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path )
      char filename[MAX_PATH];
      char *p;
      size_t len = strlen( path );
@@ -85,7 +85,7 @@ index 76558342e..35a134950 100644
  
      WIN32_FIND_DATAW file_data;
      HANDLE hFind;
-@@ -1292,7 +1306,18 @@ int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path )
+@@ -1563,7 +1577,18 @@ int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path )
      p = filename + len;
      filename[len++] = '*';
  
@@ -105,7 +105,7 @@ index 76558342e..35a134950 100644
                                   MAX_PATH - 3 );
      if( w_ret == 0 )
          return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-@@ -1309,8 +1334,11 @@ int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path )
+@@ -1580,8 +1605,11 @@ int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path )
          if( file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY )
              continue;
  
diff --git a/thirdparty/mbedtls/patches/windows-arm64-hardclock.diff b/thirdparty/mbedtls/patches/windows-arm64-hardclock.diff
new file mode 100644
index 000000000..c7c5a7e28
--- /dev/null
+++ b/thirdparty/mbedtls/patches/windows-arm64-hardclock.diff
@@ -0,0 +1,16 @@
+diff --git a/thirdparty/mbedtls/library/timing.c b/thirdparty/mbedtls/library/timing.c
+index 6c14a4fd01..151292e325 100644
+--- a/thirdparty/mbedtls/library/timing.c
++++ b/thirdparty/mbedtls/library/timing.c
+@@ -190,8 +190,10 @@ unsigned long mbedtls_timing_hardclock( void )
+ #endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
+           __GNUC__ && __ia64__ */
+ 
+-#if !defined(HAVE_HARDCLOCK) && defined(_MSC_VER) && \
++// -- GODOT start --
++#if !defined(HAVE_HARDCLOCK) && defined(_WIN32) && \
+     !defined(EFIX64) && !defined(EFI32)
++// -- GODOT end --
+ 
+ #define HAVE_HARDCLOCK
+