diff options
Diffstat (limited to 'thirdparty/mbedtls/library/camellia.c')
| -rw-r--r-- | thirdparty/mbedtls/library/camellia.c | 1072 |
1 files changed, 1072 insertions, 0 deletions
diff --git a/thirdparty/mbedtls/library/camellia.c b/thirdparty/mbedtls/library/camellia.c new file mode 100644 index 0000000000..ac6f96a83a --- /dev/null +++ b/thirdparty/mbedtls/library/camellia.c @@ -0,0 +1,1072 @@ +/* + * Camellia implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * 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. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The Camellia block cipher was designed by NTT and Mitsubishi Electric + * Corporation. + * + * http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/01espec.pdf + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_CAMELLIA_C) + +#include "mbedtls/camellia.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) + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0; +} + +/* + * 32-bit integer manipulation macros (big endian) + */ +#ifndef GET_UINT32_BE +#define GET_UINT32_BE(n,b,i) \ +{ \ + (n) = ( (uint32_t) (b)[(i) ] << 24 ) \ + | ( (uint32_t) (b)[(i) + 1] << 16 ) \ + | ( (uint32_t) (b)[(i) + 2] << 8 ) \ + | ( (uint32_t) (b)[(i) + 3] ); \ +} +#endif + +#ifndef PUT_UINT32_BE +#define PUT_UINT32_BE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \ + (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \ + (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \ + (b)[(i) + 3] = (unsigned char) ( (n) ); \ +} +#endif + +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((I0 >> 24) & 0xFF) << 24) | + ((uint32_t) SBOX2((I0 >> 16) & 0xFF) << 16) | + ((uint32_t) SBOX3((I0 >> 8) & 0xFF) << 8) | + ((uint32_t) SBOX4((I0 ) & 0xFF) ); + I1 = ((uint32_t) SBOX2((I1 >> 24) & 0xFF) << 24) | + ((uint32_t) SBOX3((I1 >> 16) & 0xFF) << 16) | + ((uint32_t) SBOX4((I1 >> 8) & 0xFF) << 8) | + ((uint32_t) SBOX1((I1 ) & 0xFF) ); + + 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 ) +{ + memset( ctx, 0, sizeof( mbedtls_camellia_context ) ); +} + +void mbedtls_camellia_free( mbedtls_camellia_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_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]; + + 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_INVALID_KEY_LENGTH ); + } + + 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++ ) { + GET_UINT32_BE( SIGMA[i][0], SIGMA_CHARS[i], 0 ); + GET_UINT32_BE( SIGMA[i][1], 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++ ) + GET_UINT32_BE( KC[i], 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; + + 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]; + + ( (void) mode ); + + NR = ctx->nr; + RK = ctx->rk; + + GET_UINT32_BE( X[0], input, 0 ); + GET_UINT32_BE( X[1], input, 4 ); + GET_UINT32_BE( X[2], input, 8 ); + GET_UINT32_BE( X[3], 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++; + + PUT_UINT32_BE( X[2], output, 0 ); + PUT_UINT32_BE( X[3], output, 4 ); + PUT_UINT32_BE( X[0], output, 8 ); + 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]; + + 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 = *iv_off; + + 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 = *nc_off; + + 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 + + mbedtls_camellia_context 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" ); + + return( 1 ); + } + } + + 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" ); + + return( 1 ); + } + } + + 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" ); + + return( 1 ); + } + } + 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" ); + + return( 1 ); + } + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + + return( 0 ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_CAMELLIA_C */ |