mirror of
https://github.com/Relintai/pandemonium_engine.git
synced 2024-12-23 12:26:59 +01:00
70 lines
2.5 KiB
C++
70 lines
2.5 KiB
C++
/**
|
|
* \file ecp_invasive.h
|
|
*
|
|
* \brief ECP module: interfaces for invasive testing only.
|
|
*
|
|
* The interfaces in this file are intended for testing purposes only.
|
|
* They SHOULD NOT be made available in library integrations except when
|
|
* building the library for testing.
|
|
*/
|
|
/*
|
|
* Copyright The Mbed TLS Contributors
|
|
* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
|
|
*/
|
|
#ifndef MBEDTLS_ECP_INVASIVE_H
|
|
#define MBEDTLS_ECP_INVASIVE_H
|
|
|
|
#include "common.h"
|
|
#include "mbedtls/bignum.h"
|
|
#include "mbedtls/ecp.h"
|
|
|
|
#if defined(MBEDTLS_TEST_HOOKS) && defined(MBEDTLS_ECP_C)
|
|
|
|
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) || \
|
|
defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \
|
|
defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
|
|
/* Preconditions:
|
|
* - bits is a multiple of 64 or is 224
|
|
* - c is -1 or -2
|
|
* - 0 <= N < 2^bits
|
|
* - N has room for bits plus one limb
|
|
*
|
|
* Behavior:
|
|
* Set N to c * 2^bits + old_value_of_N.
|
|
*/
|
|
void mbedtls_ecp_fix_negative(mbedtls_mpi *N, signed char c, size_t bits);
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_ECP_MONTGOMERY_ENABLED)
|
|
/** Generate a private key on a Montgomery curve (Curve25519 or Curve448).
|
|
*
|
|
* This function implements key generation for the set of secret keys
|
|
* specified in [Curve25519] p. 5 and in [Curve448]. The resulting value
|
|
* has the lower bits masked but is not necessarily canonical.
|
|
*
|
|
* \note - [Curve25519] http://cr.yp.to/ecdh/curve25519-20060209.pdf
|
|
* - [RFC7748] https://tools.ietf.org/html/rfc7748
|
|
*
|
|
* \p high_bit The position of the high-order bit of the key to generate.
|
|
* This is the bit-size of the key minus 1:
|
|
* 254 for Curve25519 or 447 for Curve448.
|
|
* \param d The randomly generated key. This is a number of size
|
|
* exactly \p high_bit + 1 bits, with the least significant bits
|
|
* masked as specified in [Curve25519] and in [RFC7748] §5.
|
|
* \param f_rng The RNG function.
|
|
* \param p_rng The RNG context to be passed to \p f_rng.
|
|
*
|
|
* \return \c 0 on success.
|
|
* \return \c MBEDTLS_ERR_ECP_xxx or MBEDTLS_ERR_MPI_xxx on failure.
|
|
*/
|
|
int mbedtls_ecp_gen_privkey_mx(size_t high_bit,
|
|
mbedtls_mpi *d,
|
|
int (*f_rng)(void *, unsigned char *, size_t),
|
|
void *p_rng);
|
|
|
|
#endif /* MBEDTLS_ECP_MONTGOMERY_ENABLED */
|
|
|
|
#endif /* MBEDTLS_TEST_HOOKS && MBEDTLS_ECP_C */
|
|
|
|
#endif /* MBEDTLS_ECP_INVASIVE_H */
|