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pandemonium_engine/thirdparty/mbedtls/library/camellia.c

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/*
* Camellia implementation
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* The Camellia block cipher was designed by NTT and Mitsubishi Electric
* Corporation.
*
* http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/01espec.pdf
*/
#include "common.h"
#if defined(MBEDTLS_CAMELLIA_C)
#include "mbedtls/camellia.h"
#include "mbedtls/platform_util.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_CAMELLIA_ALT)
/* Parameter validation macros */
#define CAMELLIA_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_CAMELLIA_BAD_INPUT_DATA )
#define CAMELLIA_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
static const unsigned char SIGMA_CHARS[6][8] =
{
{ 0xa0, 0x9e, 0x66, 0x7f, 0x3b, 0xcc, 0x90, 0x8b },
{ 0xb6, 0x7a, 0xe8, 0x58, 0x4c, 0xaa, 0x73, 0xb2 },
{ 0xc6, 0xef, 0x37, 0x2f, 0xe9, 0x4f, 0x82, 0xbe },
{ 0x54, 0xff, 0x53, 0xa5, 0xf1, 0xd3, 0x6f, 0x1c },
{ 0x10, 0xe5, 0x27, 0xfa, 0xde, 0x68, 0x2d, 0x1d },
{ 0xb0, 0x56, 0x88, 0xc2, 0xb3, 0xe6, 0xc1, 0xfd }
};
#if defined(MBEDTLS_CAMELLIA_SMALL_MEMORY)
static const unsigned char FSb[256] =
{
112,130, 44,236,179, 39,192,229,228,133, 87, 53,234, 12,174, 65,
35,239,107,147, 69, 25,165, 33,237, 14, 79, 78, 29,101,146,189,
134,184,175,143,124,235, 31,206, 62, 48,220, 95, 94,197, 11, 26,
166,225, 57,202,213, 71, 93, 61,217, 1, 90,214, 81, 86,108, 77,
139, 13,154,102,251,204,176, 45,116, 18, 43, 32,240,177,132,153,
223, 76,203,194, 52,126,118, 5,109,183,169, 49,209, 23, 4,215,
20, 88, 58, 97,222, 27, 17, 28, 50, 15,156, 22, 83, 24,242, 34,
254, 68,207,178,195,181,122,145, 36, 8,232,168, 96,252,105, 80,
170,208,160,125,161,137, 98,151, 84, 91, 30,149,224,255,100,210,
16,196, 0, 72,163,247,117,219,138, 3,230,218, 9, 63,221,148,
135, 92,131, 2,205, 74,144, 51,115,103,246,243,157,127,191,226,
82,155,216, 38,200, 55,198, 59,129,150,111, 75, 19,190, 99, 46,
233,121,167,140,159,110,188,142, 41,245,249,182, 47,253,180, 89,
120,152, 6,106,231, 70,113,186,212, 37,171, 66,136,162,141,250,
114, 7,185, 85,248,238,172, 10, 54, 73, 42,104, 60, 56,241,164,
64, 40,211,123,187,201, 67,193, 21,227,173,244,119,199,128,158
};
#define SBOX1(n) FSb[(n)]
#define SBOX2(n) (unsigned char)((FSb[(n)] >> 7 ^ FSb[(n)] << 1) & 0xff)
#define SBOX3(n) (unsigned char)((FSb[(n)] >> 1 ^ FSb[(n)] << 7) & 0xff)
#define SBOX4(n) FSb[((n) << 1 ^ (n) >> 7) &0xff]
#else /* MBEDTLS_CAMELLIA_SMALL_MEMORY */
static const unsigned char FSb[256] =
{
112, 130, 44, 236, 179, 39, 192, 229, 228, 133, 87, 53, 234, 12, 174, 65,
35, 239, 107, 147, 69, 25, 165, 33, 237, 14, 79, 78, 29, 101, 146, 189,
134, 184, 175, 143, 124, 235, 31, 206, 62, 48, 220, 95, 94, 197, 11, 26,
166, 225, 57, 202, 213, 71, 93, 61, 217, 1, 90, 214, 81, 86, 108, 77,
139, 13, 154, 102, 251, 204, 176, 45, 116, 18, 43, 32, 240, 177, 132, 153,
223, 76, 203, 194, 52, 126, 118, 5, 109, 183, 169, 49, 209, 23, 4, 215,
20, 88, 58, 97, 222, 27, 17, 28, 50, 15, 156, 22, 83, 24, 242, 34,
254, 68, 207, 178, 195, 181, 122, 145, 36, 8, 232, 168, 96, 252, 105, 80,
170, 208, 160, 125, 161, 137, 98, 151, 84, 91, 30, 149, 224, 255, 100, 210,
16, 196, 0, 72, 163, 247, 117, 219, 138, 3, 230, 218, 9, 63, 221, 148,
135, 92, 131, 2, 205, 74, 144, 51, 115, 103, 246, 243, 157, 127, 191, 226,
82, 155, 216, 38, 200, 55, 198, 59, 129, 150, 111, 75, 19, 190, 99, 46,
233, 121, 167, 140, 159, 110, 188, 142, 41, 245, 249, 182, 47, 253, 180, 89,
120, 152, 6, 106, 231, 70, 113, 186, 212, 37, 171, 66, 136, 162, 141, 250,
114, 7, 185, 85, 248, 238, 172, 10, 54, 73, 42, 104, 60, 56, 241, 164,
64, 40, 211, 123, 187, 201, 67, 193, 21, 227, 173, 244, 119, 199, 128, 158
};
static const unsigned char FSb2[256] =
{
224, 5, 88, 217, 103, 78, 129, 203, 201, 11, 174, 106, 213, 24, 93, 130,
70, 223, 214, 39, 138, 50, 75, 66, 219, 28, 158, 156, 58, 202, 37, 123,
13, 113, 95, 31, 248, 215, 62, 157, 124, 96, 185, 190, 188, 139, 22, 52,
77, 195, 114, 149, 171, 142, 186, 122, 179, 2, 180, 173, 162, 172, 216, 154,
23, 26, 53, 204, 247, 153, 97, 90, 232, 36, 86, 64, 225, 99, 9, 51,
191, 152, 151, 133, 104, 252, 236, 10, 218, 111, 83, 98, 163, 46, 8, 175,
40, 176, 116, 194, 189, 54, 34, 56, 100, 30, 57, 44, 166, 48, 229, 68,
253, 136, 159, 101, 135, 107, 244, 35, 72, 16, 209, 81, 192, 249, 210, 160,
85, 161, 65, 250, 67, 19, 196, 47, 168, 182, 60, 43, 193, 255, 200, 165,
32, 137, 0, 144, 71, 239, 234, 183, 21, 6, 205, 181, 18, 126, 187, 41,
15, 184, 7, 4, 155, 148, 33, 102, 230, 206, 237, 231, 59, 254, 127, 197,
164, 55, 177, 76, 145, 110, 141, 118, 3, 45, 222, 150, 38, 125, 198, 92,
211, 242, 79, 25, 63, 220, 121, 29, 82, 235, 243, 109, 94, 251, 105, 178,
240, 49, 12, 212, 207, 140, 226, 117, 169, 74, 87, 132, 17, 69, 27, 245,
228, 14, 115, 170, 241, 221, 89, 20, 108, 146, 84, 208, 120, 112, 227, 73,
128, 80, 167, 246, 119, 147, 134, 131, 42, 199, 91, 233, 238, 143, 1, 61
};
static const unsigned char FSb3[256] =
{
56, 65, 22, 118, 217, 147, 96, 242, 114, 194, 171, 154, 117, 6, 87, 160,
145, 247, 181, 201, 162, 140, 210, 144, 246, 7, 167, 39, 142, 178, 73, 222,
67, 92, 215, 199, 62, 245, 143, 103, 31, 24, 110, 175, 47, 226, 133, 13,
83, 240, 156, 101, 234, 163, 174, 158, 236, 128, 45, 107, 168, 43, 54, 166,
197, 134, 77, 51, 253, 102, 88, 150, 58, 9, 149, 16, 120, 216, 66, 204,
239, 38, 229, 97, 26, 63, 59, 130, 182, 219, 212, 152, 232, 139, 2, 235,
10, 44, 29, 176, 111, 141, 136, 14, 25, 135, 78, 11, 169, 12, 121, 17,
127, 34, 231, 89, 225, 218, 61, 200, 18, 4, 116, 84, 48, 126, 180, 40,
85, 104, 80, 190, 208, 196, 49, 203, 42, 173, 15, 202, 112, 255, 50, 105,
8, 98, 0, 36, 209, 251, 186, 237, 69, 129, 115, 109, 132, 159, 238, 74,
195, 46, 193, 1, 230, 37, 72, 153, 185, 179, 123, 249, 206, 191, 223, 113,
41, 205, 108, 19, 100, 155, 99, 157, 192, 75, 183, 165, 137, 95, 177, 23,
244, 188, 211, 70, 207, 55, 94, 71, 148, 250, 252, 91, 151, 254, 90, 172,
60, 76, 3, 53, 243, 35, 184, 93, 106, 146, 213, 33, 68, 81, 198, 125,
57, 131, 220, 170, 124, 119, 86, 5, 27, 164, 21, 52, 30, 28, 248, 82,
32, 20, 233, 189, 221, 228, 161, 224, 138, 241, 214, 122, 187, 227, 64, 79
};
static const unsigned char FSb4[256] =
{
112, 44, 179, 192, 228, 87, 234, 174, 35, 107, 69, 165, 237, 79, 29, 146,
134, 175, 124, 31, 62, 220, 94, 11, 166, 57, 213, 93, 217, 90, 81, 108,
139, 154, 251, 176, 116, 43, 240, 132, 223, 203, 52, 118, 109, 169, 209, 4,
20, 58, 222, 17, 50, 156, 83, 242, 254, 207, 195, 122, 36, 232, 96, 105,
170, 160, 161, 98, 84, 30, 224, 100, 16, 0, 163, 117, 138, 230, 9, 221,
135, 131, 205, 144, 115, 246, 157, 191, 82, 216, 200, 198, 129, 111, 19, 99,
233, 167, 159, 188, 41, 249, 47, 180, 120, 6, 231, 113, 212, 171, 136, 141,
114, 185, 248, 172, 54, 42, 60, 241, 64, 211, 187, 67, 21, 173, 119, 128,
130, 236, 39, 229, 133, 53, 12, 65, 239, 147, 25, 33, 14, 78, 101, 189,
184, 143, 235, 206, 48, 95, 197, 26, 225, 202, 71, 61, 1, 214, 86, 77,
13, 102, 204, 45, 18, 32, 177, 153, 76, 194, 126, 5, 183, 49, 23, 215,
88, 97, 27, 28, 15, 22, 24, 34, 68, 178, 181, 145, 8, 168, 252, 80,
208, 125, 137, 151, 91, 149, 255, 210, 196, 72, 247, 219, 3, 218, 63, 148,
92, 2, 74, 51, 103, 243, 127, 226, 155, 38, 55, 59, 150, 75, 190, 46,
121, 140, 110, 142, 245, 182, 253, 89, 152, 106, 70, 186, 37, 66, 162, 250,
7, 85, 238, 10, 73, 104, 56, 164, 40, 123, 201, 193, 227, 244, 199, 158
};
#define SBOX1(n) FSb[(n)]
#define SBOX2(n) FSb2[(n)]
#define SBOX3(n) FSb3[(n)]
#define SBOX4(n) FSb4[(n)]
#endif /* MBEDTLS_CAMELLIA_SMALL_MEMORY */
static const unsigned char shifts[2][4][4] =
{
{
{ 1, 1, 1, 1 }, /* KL */
{ 0, 0, 0, 0 }, /* KR */
{ 1, 1, 1, 1 }, /* KA */
{ 0, 0, 0, 0 } /* KB */
},
{
{ 1, 0, 1, 1 }, /* KL */
{ 1, 1, 0, 1 }, /* KR */
{ 1, 1, 1, 0 }, /* KA */
{ 1, 1, 0, 1 } /* KB */
}
};
static const signed char indexes[2][4][20] =
{
{
{ 0, 1, 2, 3, 8, 9, 10, 11, 38, 39,
36, 37, 23, 20, 21, 22, 27, -1, -1, 26 }, /* KL -> RK */
{ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, /* KR -> RK */
{ 4, 5, 6, 7, 12, 13, 14, 15, 16, 17,
18, 19, -1, 24, 25, -1, 31, 28, 29, 30 }, /* KA -> RK */
{ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1 } /* KB -> RK */
},
{
{ 0, 1, 2, 3, 61, 62, 63, 60, -1, -1,
-1, -1, 27, 24, 25, 26, 35, 32, 33, 34 }, /* KL -> RK */
{ -1, -1, -1, -1, 8, 9, 10, 11, 16, 17,
18, 19, -1, -1, -1, -1, 39, 36, 37, 38 }, /* KR -> RK */
{ -1, -1, -1, -1, 12, 13, 14, 15, 58, 59,
56, 57, 31, 28, 29, 30, -1, -1, -1, -1 }, /* KA -> RK */
{ 4, 5, 6, 7, 65, 66, 67, 64, 20, 21,
22, 23, -1, -1, -1, -1, 43, 40, 41, 42 } /* KB -> RK */
}
};
static const signed char transposes[2][20] =
{
{
21, 22, 23, 20,
-1, -1, -1, -1,
18, 19, 16, 17,
11, 8, 9, 10,
15, 12, 13, 14
},
{
25, 26, 27, 24,
29, 30, 31, 28,
18, 19, 16, 17,
-1, -1, -1, -1,
-1, -1, -1, -1
}
};
/* Shift macro for 128 bit strings with rotation smaller than 32 bits (!) */
#define ROTL(DEST, SRC, SHIFT) \
{ \
(DEST)[0] = (SRC)[0] << (SHIFT) ^ (SRC)[1] >> (32 - (SHIFT)); \
(DEST)[1] = (SRC)[1] << (SHIFT) ^ (SRC)[2] >> (32 - (SHIFT)); \
(DEST)[2] = (SRC)[2] << (SHIFT) ^ (SRC)[3] >> (32 - (SHIFT)); \
(DEST)[3] = (SRC)[3] << (SHIFT) ^ (SRC)[0] >> (32 - (SHIFT)); \
}
#define FL(XL, XR, KL, KR) \
{ \
(XR) = ((((XL) & (KL)) << 1) | (((XL) & (KL)) >> 31)) ^ (XR); \
(XL) = ((XR) | (KR)) ^ (XL); \
}
#define FLInv(YL, YR, KL, KR) \
{ \
(YL) = ((YR) | (KR)) ^ (YL); \
(YR) = ((((YL) & (KL)) << 1) | (((YL) & (KL)) >> 31)) ^ (YR); \
}
#define SHIFT_AND_PLACE(INDEX, OFFSET) \
{ \
TK[0] = KC[(OFFSET) * 4 + 0]; \
TK[1] = KC[(OFFSET) * 4 + 1]; \
TK[2] = KC[(OFFSET) * 4 + 2]; \
TK[3] = KC[(OFFSET) * 4 + 3]; \
\
for( i = 1; i <= 4; i++ ) \
if( shifts[(INDEX)][(OFFSET)][i -1] ) \
ROTL(TK + i * 4, TK, ( 15 * i ) % 32); \
\
for( i = 0; i < 20; i++ ) \
if( indexes[(INDEX)][(OFFSET)][i] != -1 ) { \
RK[indexes[(INDEX)][(OFFSET)][i]] = TK[ i ]; \
} \
}
static void camellia_feistel( const uint32_t x[2], const uint32_t k[2],
uint32_t z[2])
{
uint32_t I0, I1;
I0 = x[0] ^ k[0];
I1 = x[1] ^ k[1];
I0 = ((uint32_t) SBOX1( MBEDTLS_BYTE_3( I0 )) << 24) |
((uint32_t) SBOX2( MBEDTLS_BYTE_2( I0 )) << 16) |
((uint32_t) SBOX3( MBEDTLS_BYTE_1( I0 )) << 8) |
((uint32_t) SBOX4( MBEDTLS_BYTE_0( I0 )) );
I1 = ((uint32_t) SBOX2( MBEDTLS_BYTE_3( I1 )) << 24) |
((uint32_t) SBOX3( MBEDTLS_BYTE_2( I1 )) << 16) |
((uint32_t) SBOX4( MBEDTLS_BYTE_1( I1 )) << 8) |
((uint32_t) SBOX1( MBEDTLS_BYTE_0( I1 )) );
I0 ^= (I1 << 8) | (I1 >> 24);
I1 ^= (I0 << 16) | (I0 >> 16);
I0 ^= (I1 >> 8) | (I1 << 24);
I1 ^= (I0 >> 8) | (I0 << 24);
z[0] ^= I1;
z[1] ^= I0;
}
void mbedtls_camellia_init( mbedtls_camellia_context *ctx )
{
CAMELLIA_VALIDATE( ctx != NULL );
memset( ctx, 0, sizeof( mbedtls_camellia_context ) );
}
void mbedtls_camellia_free( mbedtls_camellia_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_camellia_context ) );
}
/*
* Camellia key schedule (encryption)
*/
int mbedtls_camellia_setkey_enc( mbedtls_camellia_context *ctx,
const unsigned char *key,
unsigned int keybits )
{
int idx;
size_t i;
uint32_t *RK;
unsigned char t[64];
uint32_t SIGMA[6][2];
uint32_t KC[16];
uint32_t TK[20];
CAMELLIA_VALIDATE_RET( ctx != NULL );
CAMELLIA_VALIDATE_RET( key != NULL );
RK = ctx->rk;
memset( t, 0, 64 );
memset( RK, 0, sizeof(ctx->rk) );
switch( keybits )
{
case 128: ctx->nr = 3; idx = 0; break;
case 192:
case 256: ctx->nr = 4; idx = 1; break;
default : return( MBEDTLS_ERR_CAMELLIA_BAD_INPUT_DATA );
}
for( i = 0; i < keybits / 8; ++i )
t[i] = key[i];
if( keybits == 192 ) {
for( i = 0; i < 8; i++ )
t[24 + i] = ~t[16 + i];
}
/*
* Prepare SIGMA values
*/
for( i = 0; i < 6; i++ ) {
SIGMA[i][0] = MBEDTLS_GET_UINT32_BE( SIGMA_CHARS[i], 0 );
SIGMA[i][1] = MBEDTLS_GET_UINT32_BE( SIGMA_CHARS[i], 4 );
}
/*
* Key storage in KC
* Order: KL, KR, KA, KB
*/
memset( KC, 0, sizeof(KC) );
/* Store KL, KR */
for( i = 0; i < 8; i++ )
KC[i] = MBEDTLS_GET_UINT32_BE( t, i * 4 );
/* Generate KA */
for( i = 0; i < 4; ++i )
KC[8 + i] = KC[i] ^ KC[4 + i];
camellia_feistel( KC + 8, SIGMA[0], KC + 10 );
camellia_feistel( KC + 10, SIGMA[1], KC + 8 );
for( i = 0; i < 4; ++i )
KC[8 + i] ^= KC[i];
camellia_feistel( KC + 8, SIGMA[2], KC + 10 );
camellia_feistel( KC + 10, SIGMA[3], KC + 8 );
if( keybits > 128 ) {
/* Generate KB */
for( i = 0; i < 4; ++i )
KC[12 + i] = KC[4 + i] ^ KC[8 + i];
camellia_feistel( KC + 12, SIGMA[4], KC + 14 );
camellia_feistel( KC + 14, SIGMA[5], KC + 12 );
}
/*
* Generating subkeys
*/
/* Manipulating KL */
SHIFT_AND_PLACE( idx, 0 );
/* Manipulating KR */
if( keybits > 128 ) {
SHIFT_AND_PLACE( idx, 1 );
}
/* Manipulating KA */
SHIFT_AND_PLACE( idx, 2 );
/* Manipulating KB */
if( keybits > 128 ) {
SHIFT_AND_PLACE( idx, 3 );
}
/* Do transpositions */
for( i = 0; i < 20; i++ ) {
if( transposes[idx][i] != -1 ) {
RK[32 + 12 * idx + i] = RK[transposes[idx][i]];
}
}
return( 0 );
}
/*
* Camellia key schedule (decryption)
*/
int mbedtls_camellia_setkey_dec( mbedtls_camellia_context *ctx,
const unsigned char *key,
unsigned int keybits )
{
int idx, ret;
size_t i;
mbedtls_camellia_context cty;
uint32_t *RK;
uint32_t *SK;
CAMELLIA_VALIDATE_RET( ctx != NULL );
CAMELLIA_VALIDATE_RET( key != NULL );
mbedtls_camellia_init( &cty );
/* Also checks keybits */
if( ( ret = mbedtls_camellia_setkey_enc( &cty, key, keybits ) ) != 0 )
goto exit;
ctx->nr = cty.nr;
idx = ( ctx->nr == 4 );
RK = ctx->rk;
SK = cty.rk + 24 * 2 + 8 * idx * 2;
*RK++ = *SK++;
*RK++ = *SK++;
*RK++ = *SK++;
*RK++ = *SK++;
for( i = 22 + 8 * idx, SK -= 6; i > 0; i--, SK -= 4 )
{
*RK++ = *SK++;
*RK++ = *SK++;
}
SK -= 2;
*RK++ = *SK++;
*RK++ = *SK++;
*RK++ = *SK++;
*RK++ = *SK++;
exit:
mbedtls_camellia_free( &cty );
return( ret );
}
/*
* Camellia-ECB block encryption/decryption
*/
int mbedtls_camellia_crypt_ecb( mbedtls_camellia_context *ctx,
int mode,
const unsigned char input[16],
unsigned char output[16] )
{
int NR;
uint32_t *RK, X[4];
CAMELLIA_VALIDATE_RET( ctx != NULL );
CAMELLIA_VALIDATE_RET( mode == MBEDTLS_CAMELLIA_ENCRYPT ||
mode == MBEDTLS_CAMELLIA_DECRYPT );
CAMELLIA_VALIDATE_RET( input != NULL );
CAMELLIA_VALIDATE_RET( output != NULL );
( (void) mode );
NR = ctx->nr;
RK = ctx->rk;
X[0] = MBEDTLS_GET_UINT32_BE( input, 0 );
X[1] = MBEDTLS_GET_UINT32_BE( input, 4 );
X[2] = MBEDTLS_GET_UINT32_BE( input, 8 );
X[3] = MBEDTLS_GET_UINT32_BE( input, 12 );
X[0] ^= *RK++;
X[1] ^= *RK++;
X[2] ^= *RK++;
X[3] ^= *RK++;
while( NR ) {
--NR;
camellia_feistel( X, RK, X + 2 );
RK += 2;
camellia_feistel( X + 2, RK, X );
RK += 2;
camellia_feistel( X, RK, X + 2 );
RK += 2;
camellia_feistel( X + 2, RK, X );
RK += 2;
camellia_feistel( X, RK, X + 2 );
RK += 2;
camellia_feistel( X + 2, RK, X );
RK += 2;
if( NR ) {
FL(X[0], X[1], RK[0], RK[1]);
RK += 2;
FLInv(X[2], X[3], RK[0], RK[1]);
RK += 2;
}
}
X[2] ^= *RK++;
X[3] ^= *RK++;
X[0] ^= *RK++;
X[1] ^= *RK++;
MBEDTLS_PUT_UINT32_BE( X[2], output, 0 );
MBEDTLS_PUT_UINT32_BE( X[3], output, 4 );
MBEDTLS_PUT_UINT32_BE( X[0], output, 8 );
MBEDTLS_PUT_UINT32_BE( X[1], output, 12 );
return( 0 );
}
#if defined(MBEDTLS_CIPHER_MODE_CBC)
/*
* Camellia-CBC buffer encryption/decryption
*/
int mbedtls_camellia_crypt_cbc( mbedtls_camellia_context *ctx,
int mode,
size_t length,
unsigned char iv[16],
const unsigned char *input,
unsigned char *output )
{
int i;
unsigned char temp[16];
CAMELLIA_VALIDATE_RET( ctx != NULL );
CAMELLIA_VALIDATE_RET( mode == MBEDTLS_CAMELLIA_ENCRYPT ||
mode == MBEDTLS_CAMELLIA_DECRYPT );
CAMELLIA_VALIDATE_RET( iv != NULL );
CAMELLIA_VALIDATE_RET( length == 0 || input != NULL );
CAMELLIA_VALIDATE_RET( length == 0 || output != NULL );
if( length % 16 )
return( MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH );
if( mode == MBEDTLS_CAMELLIA_DECRYPT )
{
while( length > 0 )
{
memcpy( temp, input, 16 );
mbedtls_camellia_crypt_ecb( ctx, mode, input, output );
for( i = 0; i < 16; i++ )
output[i] = (unsigned char)( output[i] ^ iv[i] );
memcpy( iv, temp, 16 );
input += 16;
output += 16;
length -= 16;
}
}
else
{
while( length > 0 )
{
for( i = 0; i < 16; i++ )
output[i] = (unsigned char)( input[i] ^ iv[i] );
mbedtls_camellia_crypt_ecb( ctx, mode, output, output );
memcpy( iv, output, 16 );
input += 16;
output += 16;
length -= 16;
}
}
return( 0 );
}
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_CIPHER_MODE_CFB)
/*
* Camellia-CFB128 buffer encryption/decryption
*/
int mbedtls_camellia_crypt_cfb128( mbedtls_camellia_context *ctx,
int mode,
size_t length,
size_t *iv_off,
unsigned char iv[16],
const unsigned char *input,
unsigned char *output )
{
int c;
size_t n;
CAMELLIA_VALIDATE_RET( ctx != NULL );
CAMELLIA_VALIDATE_RET( mode == MBEDTLS_CAMELLIA_ENCRYPT ||
mode == MBEDTLS_CAMELLIA_DECRYPT );
CAMELLIA_VALIDATE_RET( iv != NULL );
CAMELLIA_VALIDATE_RET( iv_off != NULL );
CAMELLIA_VALIDATE_RET( length == 0 || input != NULL );
CAMELLIA_VALIDATE_RET( length == 0 || output != NULL );
n = *iv_off;
if( n >= 16 )
return( MBEDTLS_ERR_CAMELLIA_BAD_INPUT_DATA );
if( mode == MBEDTLS_CAMELLIA_DECRYPT )
{
while( length-- )
{
if( n == 0 )
mbedtls_camellia_crypt_ecb( ctx, MBEDTLS_CAMELLIA_ENCRYPT, iv, iv );
c = *input++;
*output++ = (unsigned char)( c ^ iv[n] );
iv[n] = (unsigned char) c;
n = ( n + 1 ) & 0x0F;
}
}
else
{
while( length-- )
{
if( n == 0 )
mbedtls_camellia_crypt_ecb( ctx, MBEDTLS_CAMELLIA_ENCRYPT, iv, iv );
iv[n] = *output++ = (unsigned char)( iv[n] ^ *input++ );
n = ( n + 1 ) & 0x0F;
}
}
*iv_off = n;
return( 0 );
}
#endif /* MBEDTLS_CIPHER_MODE_CFB */
#if defined(MBEDTLS_CIPHER_MODE_CTR)
/*
* Camellia-CTR buffer encryption/decryption
*/
int mbedtls_camellia_crypt_ctr( mbedtls_camellia_context *ctx,
size_t length,
size_t *nc_off,
unsigned char nonce_counter[16],
unsigned char stream_block[16],
const unsigned char *input,
unsigned char *output )
{
int c, i;
size_t n;
CAMELLIA_VALIDATE_RET( ctx != NULL );
CAMELLIA_VALIDATE_RET( nonce_counter != NULL );
CAMELLIA_VALIDATE_RET( stream_block != NULL );
CAMELLIA_VALIDATE_RET( nc_off != NULL );
CAMELLIA_VALIDATE_RET( length == 0 || input != NULL );
CAMELLIA_VALIDATE_RET( length == 0 || output != NULL );
n = *nc_off;
if( n >= 16 )
return( MBEDTLS_ERR_CAMELLIA_BAD_INPUT_DATA );
while( length-- )
{
if( n == 0 ) {
mbedtls_camellia_crypt_ecb( ctx, MBEDTLS_CAMELLIA_ENCRYPT, nonce_counter,
stream_block );
for( i = 16; i > 0; i-- )
if( ++nonce_counter[i - 1] != 0 )
break;
}
c = *input++;
*output++ = (unsigned char)( c ^ stream_block[n] );
n = ( n + 1 ) & 0x0F;
}
*nc_off = n;
return( 0 );
}
#endif /* MBEDTLS_CIPHER_MODE_CTR */
#endif /* !MBEDTLS_CAMELLIA_ALT */
#if defined(MBEDTLS_SELF_TEST)
/*
* Camellia test vectors from:
*
* http://info.isl.ntt.co.jp/crypt/eng/camellia/technology.html:
* http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/cryptrec/intermediate.txt
* http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/cryptrec/t_camellia.txt
* (For each bitlength: Key 0, Nr 39)
*/
#define CAMELLIA_TESTS_ECB 2
static const unsigned char camellia_test_ecb_key[3][CAMELLIA_TESTS_ECB][32] =
{
{
{ 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
},
{
{ 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10,
0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77 },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
},
{
{ 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10,
0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
},
};
static const unsigned char camellia_test_ecb_plain[CAMELLIA_TESTS_ECB][16] =
{
{ 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 },
{ 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
};
static const unsigned char camellia_test_ecb_cipher[3][CAMELLIA_TESTS_ECB][16] =
{
{
{ 0x67, 0x67, 0x31, 0x38, 0x54, 0x96, 0x69, 0x73,
0x08, 0x57, 0x06, 0x56, 0x48, 0xea, 0xbe, 0x43 },
{ 0x38, 0x3C, 0x6C, 0x2A, 0xAB, 0xEF, 0x7F, 0xDE,
0x25, 0xCD, 0x47, 0x0B, 0xF7, 0x74, 0xA3, 0x31 }
},
{
{ 0xb4, 0x99, 0x34, 0x01, 0xb3, 0xe9, 0x96, 0xf8,
0x4e, 0xe5, 0xce, 0xe7, 0xd7, 0x9b, 0x09, 0xb9 },
{ 0xD1, 0x76, 0x3F, 0xC0, 0x19, 0xD7, 0x7C, 0xC9,
0x30, 0xBF, 0xF2, 0xA5, 0x6F, 0x7C, 0x93, 0x64 }
},
{
{ 0x9a, 0xcc, 0x23, 0x7d, 0xff, 0x16, 0xd7, 0x6c,
0x20, 0xef, 0x7c, 0x91, 0x9e, 0x3a, 0x75, 0x09 },
{ 0x05, 0x03, 0xFB, 0x10, 0xAB, 0x24, 0x1E, 0x7C,
0xF4, 0x5D, 0x8C, 0xDE, 0xEE, 0x47, 0x43, 0x35 }
}
};
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#define CAMELLIA_TESTS_CBC 3
static const unsigned char camellia_test_cbc_key[3][32] =
{
{ 0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6,
0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C }
,
{ 0x8E, 0x73, 0xB0, 0xF7, 0xDA, 0x0E, 0x64, 0x52,
0xC8, 0x10, 0xF3, 0x2B, 0x80, 0x90, 0x79, 0xE5,
0x62, 0xF8, 0xEA, 0xD2, 0x52, 0x2C, 0x6B, 0x7B }
,
{ 0x60, 0x3D, 0xEB, 0x10, 0x15, 0xCA, 0x71, 0xBE,
0x2B, 0x73, 0xAE, 0xF0, 0x85, 0x7D, 0x77, 0x81,
0x1F, 0x35, 0x2C, 0x07, 0x3B, 0x61, 0x08, 0xD7,
0x2D, 0x98, 0x10, 0xA3, 0x09, 0x14, 0xDF, 0xF4 }
};
static const unsigned char camellia_test_cbc_iv[16] =
{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F }
;
static const unsigned char camellia_test_cbc_plain[CAMELLIA_TESTS_CBC][16] =
{
{ 0x6B, 0xC1, 0xBE, 0xE2, 0x2E, 0x40, 0x9F, 0x96,
0xE9, 0x3D, 0x7E, 0x11, 0x73, 0x93, 0x17, 0x2A },
{ 0xAE, 0x2D, 0x8A, 0x57, 0x1E, 0x03, 0xAC, 0x9C,
0x9E, 0xB7, 0x6F, 0xAC, 0x45, 0xAF, 0x8E, 0x51 },
{ 0x30, 0xC8, 0x1C, 0x46, 0xA3, 0x5C, 0xE4, 0x11,
0xE5, 0xFB, 0xC1, 0x19, 0x1A, 0x0A, 0x52, 0xEF }
};
static const unsigned char camellia_test_cbc_cipher[3][CAMELLIA_TESTS_CBC][16] =
{
{
{ 0x16, 0x07, 0xCF, 0x49, 0x4B, 0x36, 0xBB, 0xF0,
0x0D, 0xAE, 0xB0, 0xB5, 0x03, 0xC8, 0x31, 0xAB },
{ 0xA2, 0xF2, 0xCF, 0x67, 0x16, 0x29, 0xEF, 0x78,
0x40, 0xC5, 0xA5, 0xDF, 0xB5, 0x07, 0x48, 0x87 },
{ 0x0F, 0x06, 0x16, 0x50, 0x08, 0xCF, 0x8B, 0x8B,
0x5A, 0x63, 0x58, 0x63, 0x62, 0x54, 0x3E, 0x54 }
},
{
{ 0x2A, 0x48, 0x30, 0xAB, 0x5A, 0xC4, 0xA1, 0xA2,
0x40, 0x59, 0x55, 0xFD, 0x21, 0x95, 0xCF, 0x93 },
{ 0x5D, 0x5A, 0x86, 0x9B, 0xD1, 0x4C, 0xE5, 0x42,
0x64, 0xF8, 0x92, 0xA6, 0xDD, 0x2E, 0xC3, 0xD5 },
{ 0x37, 0xD3, 0x59, 0xC3, 0x34, 0x98, 0x36, 0xD8,
0x84, 0xE3, 0x10, 0xAD, 0xDF, 0x68, 0xC4, 0x49 }
},
{
{ 0xE6, 0xCF, 0xA3, 0x5F, 0xC0, 0x2B, 0x13, 0x4A,
0x4D, 0x2C, 0x0B, 0x67, 0x37, 0xAC, 0x3E, 0xDA },
{ 0x36, 0xCB, 0xEB, 0x73, 0xBD, 0x50, 0x4B, 0x40,
0x70, 0xB1, 0xB7, 0xDE, 0x2B, 0x21, 0xEB, 0x50 },
{ 0xE3, 0x1A, 0x60, 0x55, 0x29, 0x7D, 0x96, 0xCA,
0x33, 0x30, 0xCD, 0xF1, 0xB1, 0x86, 0x0A, 0x83 }
}
};
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_CIPHER_MODE_CTR)
/*
* Camellia-CTR test vectors from:
*
* http://www.faqs.org/rfcs/rfc5528.html
*/
static const unsigned char camellia_test_ctr_key[3][16] =
{
{ 0xAE, 0x68, 0x52, 0xF8, 0x12, 0x10, 0x67, 0xCC,
0x4B, 0xF7, 0xA5, 0x76, 0x55, 0x77, 0xF3, 0x9E },
{ 0x7E, 0x24, 0x06, 0x78, 0x17, 0xFA, 0xE0, 0xD7,
0x43, 0xD6, 0xCE, 0x1F, 0x32, 0x53, 0x91, 0x63 },
{ 0x76, 0x91, 0xBE, 0x03, 0x5E, 0x50, 0x20, 0xA8,
0xAC, 0x6E, 0x61, 0x85, 0x29, 0xF9, 0xA0, 0xDC }
};
static const unsigned char camellia_test_ctr_nonce_counter[3][16] =
{
{ 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
{ 0x00, 0x6C, 0xB6, 0xDB, 0xC0, 0x54, 0x3B, 0x59,
0xDA, 0x48, 0xD9, 0x0B, 0x00, 0x00, 0x00, 0x01 },
{ 0x00, 0xE0, 0x01, 0x7B, 0x27, 0x77, 0x7F, 0x3F,
0x4A, 0x17, 0x86, 0xF0, 0x00, 0x00, 0x00, 0x01 }
};
static const unsigned char camellia_test_ctr_pt[3][48] =
{
{ 0x53, 0x69, 0x6E, 0x67, 0x6C, 0x65, 0x20, 0x62,
0x6C, 0x6F, 0x63, 0x6B, 0x20, 0x6D, 0x73, 0x67 },
{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F },
{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
0x20, 0x21, 0x22, 0x23 }
};
static const unsigned char camellia_test_ctr_ct[3][48] =
{
{ 0xD0, 0x9D, 0xC2, 0x9A, 0x82, 0x14, 0x61, 0x9A,
0x20, 0x87, 0x7C, 0x76, 0xDB, 0x1F, 0x0B, 0x3F },
{ 0xDB, 0xF3, 0xC7, 0x8D, 0xC0, 0x83, 0x96, 0xD4,
0xDA, 0x7C, 0x90, 0x77, 0x65, 0xBB, 0xCB, 0x44,
0x2B, 0x8E, 0x8E, 0x0F, 0x31, 0xF0, 0xDC, 0xA7,
0x2C, 0x74, 0x17, 0xE3, 0x53, 0x60, 0xE0, 0x48 },
{ 0xB1, 0x9D, 0x1F, 0xCD, 0xCB, 0x75, 0xEB, 0x88,
0x2F, 0x84, 0x9C, 0xE2, 0x4D, 0x85, 0xCF, 0x73,
0x9C, 0xE6, 0x4B, 0x2B, 0x5C, 0x9D, 0x73, 0xF1,
0x4F, 0x2D, 0x5D, 0x9D, 0xCE, 0x98, 0x89, 0xCD,
0xDF, 0x50, 0x86, 0x96 }
};
static const int camellia_test_ctr_len[3] =
{ 16, 32, 36 };
#endif /* MBEDTLS_CIPHER_MODE_CTR */
/*
* Checkup routine
*/
int mbedtls_camellia_self_test( int verbose )
{
int i, j, u, v;
unsigned char key[32];
unsigned char buf[64];
unsigned char src[16];
unsigned char dst[16];
#if defined(MBEDTLS_CIPHER_MODE_CBC)
unsigned char iv[16];
#endif
#if defined(MBEDTLS_CIPHER_MODE_CTR)
size_t offset, len;
unsigned char nonce_counter[16];
unsigned char stream_block[16];
#endif
int ret = 1;
mbedtls_camellia_context ctx;
mbedtls_camellia_init( &ctx );
memset( key, 0, 32 );
for( j = 0; j < 6; j++ ) {
u = j >> 1;
v = j & 1;
if( verbose != 0 )
mbedtls_printf( " CAMELLIA-ECB-%3d (%s): ", 128 + u * 64,
(v == MBEDTLS_CAMELLIA_DECRYPT) ? "dec" : "enc");
for( i = 0; i < CAMELLIA_TESTS_ECB; i++ ) {
memcpy( key, camellia_test_ecb_key[u][i], 16 + 8 * u );
if( v == MBEDTLS_CAMELLIA_DECRYPT ) {
mbedtls_camellia_setkey_dec( &ctx, key, 128 + u * 64 );
memcpy( src, camellia_test_ecb_cipher[u][i], 16 );
memcpy( dst, camellia_test_ecb_plain[i], 16 );
} else { /* MBEDTLS_CAMELLIA_ENCRYPT */
mbedtls_camellia_setkey_enc( &ctx, key, 128 + u * 64 );
memcpy( src, camellia_test_ecb_plain[i], 16 );
memcpy( dst, camellia_test_ecb_cipher[u][i], 16 );
}
mbedtls_camellia_crypt_ecb( &ctx, v, src, buf );
if( memcmp( buf, dst, 16 ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
goto exit;
}
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
#if defined(MBEDTLS_CIPHER_MODE_CBC)
/*
* CBC mode
*/
for( j = 0; j < 6; j++ )
{
u = j >> 1;
v = j & 1;
if( verbose != 0 )
mbedtls_printf( " CAMELLIA-CBC-%3d (%s): ", 128 + u * 64,
( v == MBEDTLS_CAMELLIA_DECRYPT ) ? "dec" : "enc" );
memcpy( src, camellia_test_cbc_iv, 16 );
memcpy( dst, camellia_test_cbc_iv, 16 );
memcpy( key, camellia_test_cbc_key[u], 16 + 8 * u );
if( v == MBEDTLS_CAMELLIA_DECRYPT ) {
mbedtls_camellia_setkey_dec( &ctx, key, 128 + u * 64 );
} else {
mbedtls_camellia_setkey_enc( &ctx, key, 128 + u * 64 );
}
for( i = 0; i < CAMELLIA_TESTS_CBC; i++ ) {
if( v == MBEDTLS_CAMELLIA_DECRYPT ) {
memcpy( iv , src, 16 );
memcpy( src, camellia_test_cbc_cipher[u][i], 16 );
memcpy( dst, camellia_test_cbc_plain[i], 16 );
} else { /* MBEDTLS_CAMELLIA_ENCRYPT */
memcpy( iv , dst, 16 );
memcpy( src, camellia_test_cbc_plain[i], 16 );
memcpy( dst, camellia_test_cbc_cipher[u][i], 16 );
}
mbedtls_camellia_crypt_cbc( &ctx, v, 16, iv, src, buf );
if( memcmp( buf, dst, 16 ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
goto exit;
}
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
#endif /* MBEDTLS_CIPHER_MODE_CBC */
if( verbose != 0 )
mbedtls_printf( "\n" );
#if defined(MBEDTLS_CIPHER_MODE_CTR)
/*
* CTR mode
*/
for( i = 0; i < 6; i++ )
{
u = i >> 1;
v = i & 1;
if( verbose != 0 )
mbedtls_printf( " CAMELLIA-CTR-128 (%s): ",
( v == MBEDTLS_CAMELLIA_DECRYPT ) ? "dec" : "enc" );
memcpy( nonce_counter, camellia_test_ctr_nonce_counter[u], 16 );
memcpy( key, camellia_test_ctr_key[u], 16 );
offset = 0;
mbedtls_camellia_setkey_enc( &ctx, key, 128 );
if( v == MBEDTLS_CAMELLIA_DECRYPT )
{
len = camellia_test_ctr_len[u];
memcpy( buf, camellia_test_ctr_ct[u], len );
mbedtls_camellia_crypt_ctr( &ctx, len, &offset, nonce_counter, stream_block,
buf, buf );
if( memcmp( buf, camellia_test_ctr_pt[u], len ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
goto exit;
}
}
else
{
len = camellia_test_ctr_len[u];
memcpy( buf, camellia_test_ctr_pt[u], len );
mbedtls_camellia_crypt_ctr( &ctx, len, &offset, nonce_counter, stream_block,
buf, buf );
if( memcmp( buf, camellia_test_ctr_ct[u], len ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
goto exit;
}
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
#endif /* MBEDTLS_CIPHER_MODE_CTR */
ret = 0;
exit:
mbedtls_camellia_free( &ctx );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_CAMELLIA_C */
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