[398] | 1 | /*
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| 2 | * FIPS-197 compliant AES implementation
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| 3 | *
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| 4 | * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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| 5 | * SPDX-License-Identifier: Apache-2.0
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| 6 | *
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| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); you may
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| 8 | * not use this file except in compliance with the License.
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| 9 | * You may obtain a copy of the License at
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| 10 | *
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| 11 | * http://www.apache.org/licenses/LICENSE-2.0
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| 12 | *
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| 13 | * Unless required by applicable law or agreed to in writing, software
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| 14 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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| 15 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 16 | * See the License for the specific language governing permissions and
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| 17 | * limitations under the License.
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| 18 | *
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| 19 | * This file is part of mbed TLS (https://tls.mbed.org)
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| 20 | */
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| 21 | /*
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| 22 | * The AES block cipher was designed by Vincent Rijmen and Joan Daemen.
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| 23 | *
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| 24 | * http://csrc.nist.gov/encryption/aes/rijndael/Rijndael.pdf
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| 25 | * http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf
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| 26 | */
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| 27 |
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| 28 | #if !defined(MBEDTLS_CONFIG_FILE)
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| 29 | #include "mbedtls/config.h"
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| 30 | #else
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| 31 | #include MBEDTLS_CONFIG_FILE
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| 32 | #endif
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| 33 |
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| 34 | #if defined(MBEDTLS_AES_C)
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| 35 |
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| 36 | #include <string.h>
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| 37 |
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| 38 | #include "mbedtls/aes.h"
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| 39 | #include "mbedtls/platform.h"
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| 40 | #include "mbedtls/platform_util.h"
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| 41 | #if defined(MBEDTLS_PADLOCK_C)
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| 42 | #include "mbedtls/padlock.h"
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| 43 | #endif
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| 44 | #if defined(MBEDTLS_AESNI_C)
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| 45 | #include "mbedtls/aesni.h"
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| 46 | #endif
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| 47 |
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| 48 | #if defined(MBEDTLS_SELF_TEST)
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| 49 | #if defined(MBEDTLS_PLATFORM_C)
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| 50 | #include "mbedtls/platform.h"
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| 51 | #else
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| 52 | #include <stdio.h>
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| 53 | #define mbedtls_printf printf
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| 54 | #endif /* MBEDTLS_PLATFORM_C */
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| 55 | #endif /* MBEDTLS_SELF_TEST */
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| 56 |
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| 57 | #if !defined(MBEDTLS_AES_ALT)
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| 58 |
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| 59 | /* Parameter validation macros based on platform_util.h */
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| 60 | #define AES_VALIDATE_RET( cond ) \
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| 61 | MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_AES_BAD_INPUT_DATA )
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| 62 | #define AES_VALIDATE( cond ) \
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| 63 | MBEDTLS_INTERNAL_VALIDATE( cond )
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| 64 |
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| 65 | /*
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| 66 | * 32-bit integer manipulation macros (little endian)
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| 67 | */
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| 68 | #ifndef GET_UINT32_LE
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| 69 | #define GET_UINT32_LE(n,b,i) \
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| 70 | { \
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| 71 | (n) = ( (uint32_t) (b)[(i) ] ) \
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| 72 | | ( (uint32_t) (b)[(i) + 1] << 8 ) \
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| 73 | | ( (uint32_t) (b)[(i) + 2] << 16 ) \
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| 74 | | ( (uint32_t) (b)[(i) + 3] << 24 ); \
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| 75 | }
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| 76 | #endif
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| 77 |
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| 78 | #ifndef PUT_UINT32_LE
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| 79 | #define PUT_UINT32_LE(n,b,i) \
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| 80 | { \
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| 81 | (b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \
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| 82 | (b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \
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| 83 | (b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \
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| 84 | (b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \
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| 85 | }
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| 86 | #endif
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| 87 |
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| 88 | #if defined(MBEDTLS_PADLOCK_C) && \
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| 89 | ( defined(MBEDTLS_HAVE_X86) || defined(MBEDTLS_PADLOCK_ALIGN16) )
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| 90 | static int aes_padlock_ace = -1;
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| 91 | #endif
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| 92 |
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| 93 | #if defined(MBEDTLS_AES_ROM_TABLES)
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| 94 | /*
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| 95 | * Forward S-box
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| 96 | */
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| 97 | static const unsigned char FSb[256] =
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| 98 | {
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| 99 | 0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5,
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| 100 | 0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76,
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| 101 | 0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0,
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| 102 | 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0,
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| 103 | 0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC,
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| 104 | 0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15,
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| 105 | 0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A,
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| 106 | 0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75,
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| 107 | 0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0,
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| 108 | 0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84,
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| 109 | 0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B,
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| 110 | 0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF,
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| 111 | 0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85,
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| 112 | 0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8,
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| 113 | 0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5,
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| 114 | 0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2,
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| 115 | 0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17,
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| 116 | 0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73,
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| 117 | 0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88,
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| 118 | 0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB,
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| 119 | 0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C,
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| 120 | 0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79,
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| 121 | 0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9,
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| 122 | 0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08,
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| 123 | 0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6,
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| 124 | 0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A,
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| 125 | 0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E,
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| 126 | 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E,
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| 127 | 0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94,
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| 128 | 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF,
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| 129 | 0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68,
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| 130 | 0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16
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| 131 | };
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| 132 |
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| 133 | /*
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| 134 | * Forward tables
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| 135 | */
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| 136 | #define FT \
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| 137 | \
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| 138 | V(A5,63,63,C6), V(84,7C,7C,F8), V(99,77,77,EE), V(8D,7B,7B,F6), \
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| 139 | V(0D,F2,F2,FF), V(BD,6B,6B,D6), V(B1,6F,6F,DE), V(54,C5,C5,91), \
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| 140 | V(50,30,30,60), V(03,01,01,02), V(A9,67,67,CE), V(7D,2B,2B,56), \
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| 141 | V(19,FE,FE,E7), V(62,D7,D7,B5), V(E6,AB,AB,4D), V(9A,76,76,EC), \
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| 142 | V(45,CA,CA,8F), V(9D,82,82,1F), V(40,C9,C9,89), V(87,7D,7D,FA), \
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| 143 | V(15,FA,FA,EF), V(EB,59,59,B2), V(C9,47,47,8E), V(0B,F0,F0,FB), \
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| 144 | V(EC,AD,AD,41), V(67,D4,D4,B3), V(FD,A2,A2,5F), V(EA,AF,AF,45), \
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| 145 | V(BF,9C,9C,23), V(F7,A4,A4,53), V(96,72,72,E4), V(5B,C0,C0,9B), \
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| 146 | V(C2,B7,B7,75), V(1C,FD,FD,E1), V(AE,93,93,3D), V(6A,26,26,4C), \
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| 147 | V(5A,36,36,6C), V(41,3F,3F,7E), V(02,F7,F7,F5), V(4F,CC,CC,83), \
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| 148 | V(5C,34,34,68), V(F4,A5,A5,51), V(34,E5,E5,D1), V(08,F1,F1,F9), \
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| 149 | V(93,71,71,E2), V(73,D8,D8,AB), V(53,31,31,62), V(3F,15,15,2A), \
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| 150 | V(0C,04,04,08), V(52,C7,C7,95), V(65,23,23,46), V(5E,C3,C3,9D), \
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| 151 | V(28,18,18,30), V(A1,96,96,37), V(0F,05,05,0A), V(B5,9A,9A,2F), \
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| 152 | V(09,07,07,0E), V(36,12,12,24), V(9B,80,80,1B), V(3D,E2,E2,DF), \
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| 153 | V(26,EB,EB,CD), V(69,27,27,4E), V(CD,B2,B2,7F), V(9F,75,75,EA), \
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| 154 | V(1B,09,09,12), V(9E,83,83,1D), V(74,2C,2C,58), V(2E,1A,1A,34), \
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| 155 | V(2D,1B,1B,36), V(B2,6E,6E,DC), V(EE,5A,5A,B4), V(FB,A0,A0,5B), \
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| 156 | V(F6,52,52,A4), V(4D,3B,3B,76), V(61,D6,D6,B7), V(CE,B3,B3,7D), \
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| 157 | V(7B,29,29,52), V(3E,E3,E3,DD), V(71,2F,2F,5E), V(97,84,84,13), \
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| 158 | V(F5,53,53,A6), V(68,D1,D1,B9), V(00,00,00,00), V(2C,ED,ED,C1), \
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| 159 | V(60,20,20,40), V(1F,FC,FC,E3), V(C8,B1,B1,79), V(ED,5B,5B,B6), \
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| 160 | V(BE,6A,6A,D4), V(46,CB,CB,8D), V(D9,BE,BE,67), V(4B,39,39,72), \
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| 161 | V(DE,4A,4A,94), V(D4,4C,4C,98), V(E8,58,58,B0), V(4A,CF,CF,85), \
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| 162 | V(6B,D0,D0,BB), V(2A,EF,EF,C5), V(E5,AA,AA,4F), V(16,FB,FB,ED), \
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| 163 | V(C5,43,43,86), V(D7,4D,4D,9A), V(55,33,33,66), V(94,85,85,11), \
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| 164 | V(CF,45,45,8A), V(10,F9,F9,E9), V(06,02,02,04), V(81,7F,7F,FE), \
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| 165 | V(F0,50,50,A0), V(44,3C,3C,78), V(BA,9F,9F,25), V(E3,A8,A8,4B), \
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| 166 | V(F3,51,51,A2), V(FE,A3,A3,5D), V(C0,40,40,80), V(8A,8F,8F,05), \
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| 167 | V(AD,92,92,3F), V(BC,9D,9D,21), V(48,38,38,70), V(04,F5,F5,F1), \
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| 168 | V(DF,BC,BC,63), V(C1,B6,B6,77), V(75,DA,DA,AF), V(63,21,21,42), \
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| 169 | V(30,10,10,20), V(1A,FF,FF,E5), V(0E,F3,F3,FD), V(6D,D2,D2,BF), \
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| 170 | V(4C,CD,CD,81), V(14,0C,0C,18), V(35,13,13,26), V(2F,EC,EC,C3), \
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| 171 | V(E1,5F,5F,BE), V(A2,97,97,35), V(CC,44,44,88), V(39,17,17,2E), \
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| 172 | V(57,C4,C4,93), V(F2,A7,A7,55), V(82,7E,7E,FC), V(47,3D,3D,7A), \
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| 173 | V(AC,64,64,C8), V(E7,5D,5D,BA), V(2B,19,19,32), V(95,73,73,E6), \
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| 174 | V(A0,60,60,C0), V(98,81,81,19), V(D1,4F,4F,9E), V(7F,DC,DC,A3), \
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| 175 | V(66,22,22,44), V(7E,2A,2A,54), V(AB,90,90,3B), V(83,88,88,0B), \
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| 176 | V(CA,46,46,8C), V(29,EE,EE,C7), V(D3,B8,B8,6B), V(3C,14,14,28), \
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| 177 | V(79,DE,DE,A7), V(E2,5E,5E,BC), V(1D,0B,0B,16), V(76,DB,DB,AD), \
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| 178 | V(3B,E0,E0,DB), V(56,32,32,64), V(4E,3A,3A,74), V(1E,0A,0A,14), \
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| 179 | V(DB,49,49,92), V(0A,06,06,0C), V(6C,24,24,48), V(E4,5C,5C,B8), \
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| 180 | V(5D,C2,C2,9F), V(6E,D3,D3,BD), V(EF,AC,AC,43), V(A6,62,62,C4), \
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| 181 | V(A8,91,91,39), V(A4,95,95,31), V(37,E4,E4,D3), V(8B,79,79,F2), \
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| 182 | V(32,E7,E7,D5), V(43,C8,C8,8B), V(59,37,37,6E), V(B7,6D,6D,DA), \
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| 183 | V(8C,8D,8D,01), V(64,D5,D5,B1), V(D2,4E,4E,9C), V(E0,A9,A9,49), \
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| 184 | V(B4,6C,6C,D8), V(FA,56,56,AC), V(07,F4,F4,F3), V(25,EA,EA,CF), \
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| 185 | V(AF,65,65,CA), V(8E,7A,7A,F4), V(E9,AE,AE,47), V(18,08,08,10), \
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| 186 | V(D5,BA,BA,6F), V(88,78,78,F0), V(6F,25,25,4A), V(72,2E,2E,5C), \
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| 187 | V(24,1C,1C,38), V(F1,A6,A6,57), V(C7,B4,B4,73), V(51,C6,C6,97), \
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| 188 | V(23,E8,E8,CB), V(7C,DD,DD,A1), V(9C,74,74,E8), V(21,1F,1F,3E), \
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| 189 | V(DD,4B,4B,96), V(DC,BD,BD,61), V(86,8B,8B,0D), V(85,8A,8A,0F), \
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| 190 | V(90,70,70,E0), V(42,3E,3E,7C), V(C4,B5,B5,71), V(AA,66,66,CC), \
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| 191 | V(D8,48,48,90), V(05,03,03,06), V(01,F6,F6,F7), V(12,0E,0E,1C), \
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| 192 | V(A3,61,61,C2), V(5F,35,35,6A), V(F9,57,57,AE), V(D0,B9,B9,69), \
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| 193 | V(91,86,86,17), V(58,C1,C1,99), V(27,1D,1D,3A), V(B9,9E,9E,27), \
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| 194 | V(38,E1,E1,D9), V(13,F8,F8,EB), V(B3,98,98,2B), V(33,11,11,22), \
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| 195 | V(BB,69,69,D2), V(70,D9,D9,A9), V(89,8E,8E,07), V(A7,94,94,33), \
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| 196 | V(B6,9B,9B,2D), V(22,1E,1E,3C), V(92,87,87,15), V(20,E9,E9,C9), \
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| 197 | V(49,CE,CE,87), V(FF,55,55,AA), V(78,28,28,50), V(7A,DF,DF,A5), \
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| 198 | V(8F,8C,8C,03), V(F8,A1,A1,59), V(80,89,89,09), V(17,0D,0D,1A), \
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| 199 | V(DA,BF,BF,65), V(31,E6,E6,D7), V(C6,42,42,84), V(B8,68,68,D0), \
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| 200 | V(C3,41,41,82), V(B0,99,99,29), V(77,2D,2D,5A), V(11,0F,0F,1E), \
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| 201 | V(CB,B0,B0,7B), V(FC,54,54,A8), V(D6,BB,BB,6D), V(3A,16,16,2C)
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| 202 |
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| 203 | #define V(a,b,c,d) 0x##a##b##c##d
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| 204 | static const uint32_t FT0[256] = { FT };
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| 205 | #undef V
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| 206 |
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| 207 | #if !defined(MBEDTLS_AES_FEWER_TABLES)
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| 208 |
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| 209 | #define V(a,b,c,d) 0x##b##c##d##a
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| 210 | static const uint32_t FT1[256] = { FT };
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| 211 | #undef V
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| 212 |
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| 213 | #define V(a,b,c,d) 0x##c##d##a##b
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| 214 | static const uint32_t FT2[256] = { FT };
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| 215 | #undef V
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| 216 |
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| 217 | #define V(a,b,c,d) 0x##d##a##b##c
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| 218 | static const uint32_t FT3[256] = { FT };
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| 219 | #undef V
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| 220 |
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| 221 | #endif /* !MBEDTLS_AES_FEWER_TABLES */
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| 222 |
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| 223 | #undef FT
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| 224 |
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| 225 | /*
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| 226 | * Reverse S-box
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| 227 | */
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| 228 | static const unsigned char RSb[256] =
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| 229 | {
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| 230 | 0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38,
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| 231 | 0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB,
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| 232 | 0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87,
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| 233 | 0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB,
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| 234 | 0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D,
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| 235 | 0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E,
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| 236 | 0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2,
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| 237 | 0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25,
|
---|
| 238 | 0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16,
|
---|
| 239 | 0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92,
|
---|
| 240 | 0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA,
|
---|
| 241 | 0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84,
|
---|
| 242 | 0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A,
|
---|
| 243 | 0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06,
|
---|
| 244 | 0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02,
|
---|
| 245 | 0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B,
|
---|
| 246 | 0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA,
|
---|
| 247 | 0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73,
|
---|
| 248 | 0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85,
|
---|
| 249 | 0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E,
|
---|
| 250 | 0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89,
|
---|
| 251 | 0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B,
|
---|
| 252 | 0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20,
|
---|
| 253 | 0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4,
|
---|
| 254 | 0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31,
|
---|
| 255 | 0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F,
|
---|
| 256 | 0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D,
|
---|
| 257 | 0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF,
|
---|
| 258 | 0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0,
|
---|
| 259 | 0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61,
|
---|
| 260 | 0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26,
|
---|
| 261 | 0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D
|
---|
| 262 | };
|
---|
| 263 |
|
---|
| 264 | /*
|
---|
| 265 | * Reverse tables
|
---|
| 266 | */
|
---|
| 267 | #define RT \
|
---|
| 268 | \
|
---|
| 269 | V(50,A7,F4,51), V(53,65,41,7E), V(C3,A4,17,1A), V(96,5E,27,3A), \
|
---|
| 270 | V(CB,6B,AB,3B), V(F1,45,9D,1F), V(AB,58,FA,AC), V(93,03,E3,4B), \
|
---|
| 271 | V(55,FA,30,20), V(F6,6D,76,AD), V(91,76,CC,88), V(25,4C,02,F5), \
|
---|
| 272 | V(FC,D7,E5,4F), V(D7,CB,2A,C5), V(80,44,35,26), V(8F,A3,62,B5), \
|
---|
| 273 | V(49,5A,B1,DE), V(67,1B,BA,25), V(98,0E,EA,45), V(E1,C0,FE,5D), \
|
---|
| 274 | V(02,75,2F,C3), V(12,F0,4C,81), V(A3,97,46,8D), V(C6,F9,D3,6B), \
|
---|
| 275 | V(E7,5F,8F,03), V(95,9C,92,15), V(EB,7A,6D,BF), V(DA,59,52,95), \
|
---|
| 276 | V(2D,83,BE,D4), V(D3,21,74,58), V(29,69,E0,49), V(44,C8,C9,8E), \
|
---|
| 277 | V(6A,89,C2,75), V(78,79,8E,F4), V(6B,3E,58,99), V(DD,71,B9,27), \
|
---|
| 278 | V(B6,4F,E1,BE), V(17,AD,88,F0), V(66,AC,20,C9), V(B4,3A,CE,7D), \
|
---|
| 279 | V(18,4A,DF,63), V(82,31,1A,E5), V(60,33,51,97), V(45,7F,53,62), \
|
---|
| 280 | V(E0,77,64,B1), V(84,AE,6B,BB), V(1C,A0,81,FE), V(94,2B,08,F9), \
|
---|
| 281 | V(58,68,48,70), V(19,FD,45,8F), V(87,6C,DE,94), V(B7,F8,7B,52), \
|
---|
| 282 | V(23,D3,73,AB), V(E2,02,4B,72), V(57,8F,1F,E3), V(2A,AB,55,66), \
|
---|
| 283 | V(07,28,EB,B2), V(03,C2,B5,2F), V(9A,7B,C5,86), V(A5,08,37,D3), \
|
---|
| 284 | V(F2,87,28,30), V(B2,A5,BF,23), V(BA,6A,03,02), V(5C,82,16,ED), \
|
---|
| 285 | V(2B,1C,CF,8A), V(92,B4,79,A7), V(F0,F2,07,F3), V(A1,E2,69,4E), \
|
---|
| 286 | V(CD,F4,DA,65), V(D5,BE,05,06), V(1F,62,34,D1), V(8A,FE,A6,C4), \
|
---|
| 287 | V(9D,53,2E,34), V(A0,55,F3,A2), V(32,E1,8A,05), V(75,EB,F6,A4), \
|
---|
| 288 | V(39,EC,83,0B), V(AA,EF,60,40), V(06,9F,71,5E), V(51,10,6E,BD), \
|
---|
| 289 | V(F9,8A,21,3E), V(3D,06,DD,96), V(AE,05,3E,DD), V(46,BD,E6,4D), \
|
---|
| 290 | V(B5,8D,54,91), V(05,5D,C4,71), V(6F,D4,06,04), V(FF,15,50,60), \
|
---|
| 291 | V(24,FB,98,19), V(97,E9,BD,D6), V(CC,43,40,89), V(77,9E,D9,67), \
|
---|
| 292 | V(BD,42,E8,B0), V(88,8B,89,07), V(38,5B,19,E7), V(DB,EE,C8,79), \
|
---|
| 293 | V(47,0A,7C,A1), V(E9,0F,42,7C), V(C9,1E,84,F8), V(00,00,00,00), \
|
---|
| 294 | V(83,86,80,09), V(48,ED,2B,32), V(AC,70,11,1E), V(4E,72,5A,6C), \
|
---|
| 295 | V(FB,FF,0E,FD), V(56,38,85,0F), V(1E,D5,AE,3D), V(27,39,2D,36), \
|
---|
| 296 | V(64,D9,0F,0A), V(21,A6,5C,68), V(D1,54,5B,9B), V(3A,2E,36,24), \
|
---|
| 297 | V(B1,67,0A,0C), V(0F,E7,57,93), V(D2,96,EE,B4), V(9E,91,9B,1B), \
|
---|
| 298 | V(4F,C5,C0,80), V(A2,20,DC,61), V(69,4B,77,5A), V(16,1A,12,1C), \
|
---|
| 299 | V(0A,BA,93,E2), V(E5,2A,A0,C0), V(43,E0,22,3C), V(1D,17,1B,12), \
|
---|
| 300 | V(0B,0D,09,0E), V(AD,C7,8B,F2), V(B9,A8,B6,2D), V(C8,A9,1E,14), \
|
---|
| 301 | V(85,19,F1,57), V(4C,07,75,AF), V(BB,DD,99,EE), V(FD,60,7F,A3), \
|
---|
| 302 | V(9F,26,01,F7), V(BC,F5,72,5C), V(C5,3B,66,44), V(34,7E,FB,5B), \
|
---|
| 303 | V(76,29,43,8B), V(DC,C6,23,CB), V(68,FC,ED,B6), V(63,F1,E4,B8), \
|
---|
| 304 | V(CA,DC,31,D7), V(10,85,63,42), V(40,22,97,13), V(20,11,C6,84), \
|
---|
| 305 | V(7D,24,4A,85), V(F8,3D,BB,D2), V(11,32,F9,AE), V(6D,A1,29,C7), \
|
---|
| 306 | V(4B,2F,9E,1D), V(F3,30,B2,DC), V(EC,52,86,0D), V(D0,E3,C1,77), \
|
---|
| 307 | V(6C,16,B3,2B), V(99,B9,70,A9), V(FA,48,94,11), V(22,64,E9,47), \
|
---|
| 308 | V(C4,8C,FC,A8), V(1A,3F,F0,A0), V(D8,2C,7D,56), V(EF,90,33,22), \
|
---|
| 309 | V(C7,4E,49,87), V(C1,D1,38,D9), V(FE,A2,CA,8C), V(36,0B,D4,98), \
|
---|
| 310 | V(CF,81,F5,A6), V(28,DE,7A,A5), V(26,8E,B7,DA), V(A4,BF,AD,3F), \
|
---|
| 311 | V(E4,9D,3A,2C), V(0D,92,78,50), V(9B,CC,5F,6A), V(62,46,7E,54), \
|
---|
| 312 | V(C2,13,8D,F6), V(E8,B8,D8,90), V(5E,F7,39,2E), V(F5,AF,C3,82), \
|
---|
| 313 | V(BE,80,5D,9F), V(7C,93,D0,69), V(A9,2D,D5,6F), V(B3,12,25,CF), \
|
---|
| 314 | V(3B,99,AC,C8), V(A7,7D,18,10), V(6E,63,9C,E8), V(7B,BB,3B,DB), \
|
---|
| 315 | V(09,78,26,CD), V(F4,18,59,6E), V(01,B7,9A,EC), V(A8,9A,4F,83), \
|
---|
| 316 | V(65,6E,95,E6), V(7E,E6,FF,AA), V(08,CF,BC,21), V(E6,E8,15,EF), \
|
---|
| 317 | V(D9,9B,E7,BA), V(CE,36,6F,4A), V(D4,09,9F,EA), V(D6,7C,B0,29), \
|
---|
| 318 | V(AF,B2,A4,31), V(31,23,3F,2A), V(30,94,A5,C6), V(C0,66,A2,35), \
|
---|
| 319 | V(37,BC,4E,74), V(A6,CA,82,FC), V(B0,D0,90,E0), V(15,D8,A7,33), \
|
---|
| 320 | V(4A,98,04,F1), V(F7,DA,EC,41), V(0E,50,CD,7F), V(2F,F6,91,17), \
|
---|
| 321 | V(8D,D6,4D,76), V(4D,B0,EF,43), V(54,4D,AA,CC), V(DF,04,96,E4), \
|
---|
| 322 | V(E3,B5,D1,9E), V(1B,88,6A,4C), V(B8,1F,2C,C1), V(7F,51,65,46), \
|
---|
| 323 | V(04,EA,5E,9D), V(5D,35,8C,01), V(73,74,87,FA), V(2E,41,0B,FB), \
|
---|
| 324 | V(5A,1D,67,B3), V(52,D2,DB,92), V(33,56,10,E9), V(13,47,D6,6D), \
|
---|
| 325 | V(8C,61,D7,9A), V(7A,0C,A1,37), V(8E,14,F8,59), V(89,3C,13,EB), \
|
---|
| 326 | V(EE,27,A9,CE), V(35,C9,61,B7), V(ED,E5,1C,E1), V(3C,B1,47,7A), \
|
---|
| 327 | V(59,DF,D2,9C), V(3F,73,F2,55), V(79,CE,14,18), V(BF,37,C7,73), \
|
---|
| 328 | V(EA,CD,F7,53), V(5B,AA,FD,5F), V(14,6F,3D,DF), V(86,DB,44,78), \
|
---|
| 329 | V(81,F3,AF,CA), V(3E,C4,68,B9), V(2C,34,24,38), V(5F,40,A3,C2), \
|
---|
| 330 | V(72,C3,1D,16), V(0C,25,E2,BC), V(8B,49,3C,28), V(41,95,0D,FF), \
|
---|
| 331 | V(71,01,A8,39), V(DE,B3,0C,08), V(9C,E4,B4,D8), V(90,C1,56,64), \
|
---|
| 332 | V(61,84,CB,7B), V(70,B6,32,D5), V(74,5C,6C,48), V(42,57,B8,D0)
|
---|
| 333 |
|
---|
| 334 | #define V(a,b,c,d) 0x##a##b##c##d
|
---|
| 335 | static const uint32_t RT0[256] = { RT };
|
---|
| 336 | #undef V
|
---|
| 337 |
|
---|
| 338 | #if !defined(MBEDTLS_AES_FEWER_TABLES)
|
---|
| 339 |
|
---|
| 340 | #define V(a,b,c,d) 0x##b##c##d##a
|
---|
| 341 | static const uint32_t RT1[256] = { RT };
|
---|
| 342 | #undef V
|
---|
| 343 |
|
---|
| 344 | #define V(a,b,c,d) 0x##c##d##a##b
|
---|
| 345 | static const uint32_t RT2[256] = { RT };
|
---|
| 346 | #undef V
|
---|
| 347 |
|
---|
| 348 | #define V(a,b,c,d) 0x##d##a##b##c
|
---|
| 349 | static const uint32_t RT3[256] = { RT };
|
---|
| 350 | #undef V
|
---|
| 351 |
|
---|
| 352 | #endif /* !MBEDTLS_AES_FEWER_TABLES */
|
---|
| 353 |
|
---|
| 354 | #undef RT
|
---|
| 355 |
|
---|
| 356 | /*
|
---|
| 357 | * Round constants
|
---|
| 358 | */
|
---|
| 359 | static const uint32_t RCON[10] =
|
---|
| 360 | {
|
---|
| 361 | 0x00000001, 0x00000002, 0x00000004, 0x00000008,
|
---|
| 362 | 0x00000010, 0x00000020, 0x00000040, 0x00000080,
|
---|
| 363 | 0x0000001B, 0x00000036
|
---|
| 364 | };
|
---|
| 365 |
|
---|
| 366 | #else /* MBEDTLS_AES_ROM_TABLES */
|
---|
| 367 |
|
---|
| 368 | /*
|
---|
| 369 | * Forward S-box & tables
|
---|
| 370 | */
|
---|
| 371 | static unsigned char FSb[256];
|
---|
| 372 | static uint32_t FT0[256];
|
---|
| 373 | #if !defined(MBEDTLS_AES_FEWER_TABLES)
|
---|
| 374 | static uint32_t FT1[256];
|
---|
| 375 | static uint32_t FT2[256];
|
---|
| 376 | static uint32_t FT3[256];
|
---|
| 377 | #endif /* !MBEDTLS_AES_FEWER_TABLES */
|
---|
| 378 |
|
---|
| 379 | /*
|
---|
| 380 | * Reverse S-box & tables
|
---|
| 381 | */
|
---|
| 382 | static unsigned char RSb[256];
|
---|
| 383 | static uint32_t RT0[256];
|
---|
| 384 | #if !defined(MBEDTLS_AES_FEWER_TABLES)
|
---|
| 385 | static uint32_t RT1[256];
|
---|
| 386 | static uint32_t RT2[256];
|
---|
| 387 | static uint32_t RT3[256];
|
---|
| 388 | #endif /* !MBEDTLS_AES_FEWER_TABLES */
|
---|
| 389 |
|
---|
| 390 | /*
|
---|
| 391 | * Round constants
|
---|
| 392 | */
|
---|
| 393 | static uint32_t RCON[10];
|
---|
| 394 |
|
---|
| 395 | /*
|
---|
| 396 | * Tables generation code
|
---|
| 397 | */
|
---|
| 398 | #define ROTL8(x) ( ( x << 8 ) & 0xFFFFFFFF ) | ( x >> 24 )
|
---|
| 399 | #define XTIME(x) ( ( x << 1 ) ^ ( ( x & 0x80 ) ? 0x1B : 0x00 ) )
|
---|
| 400 | #define MUL(x,y) ( ( x && y ) ? pow[(log[x]+log[y]) % 255] : 0 )
|
---|
| 401 |
|
---|
| 402 | static int aes_init_done = 0;
|
---|
| 403 |
|
---|
| 404 | static void aes_gen_tables( void )
|
---|
| 405 | {
|
---|
| 406 | int i, x, y, z;
|
---|
| 407 | int pow[256];
|
---|
| 408 | int log[256];
|
---|
| 409 |
|
---|
| 410 | /*
|
---|
| 411 | * compute pow and log tables over GF(2^8)
|
---|
| 412 | */
|
---|
| 413 | for( i = 0, x = 1; i < 256; i++ )
|
---|
| 414 | {
|
---|
| 415 | pow[i] = x;
|
---|
| 416 | log[x] = i;
|
---|
| 417 | x = ( x ^ XTIME( x ) ) & 0xFF;
|
---|
| 418 | }
|
---|
| 419 |
|
---|
| 420 | /*
|
---|
| 421 | * calculate the round constants
|
---|
| 422 | */
|
---|
| 423 | for( i = 0, x = 1; i < 10; i++ )
|
---|
| 424 | {
|
---|
| 425 | RCON[i] = (uint32_t) x;
|
---|
| 426 | x = XTIME( x ) & 0xFF;
|
---|
| 427 | }
|
---|
| 428 |
|
---|
| 429 | /*
|
---|
| 430 | * generate the forward and reverse S-boxes
|
---|
| 431 | */
|
---|
| 432 | FSb[0x00] = 0x63;
|
---|
| 433 | RSb[0x63] = 0x00;
|
---|
| 434 |
|
---|
| 435 | for( i = 1; i < 256; i++ )
|
---|
| 436 | {
|
---|
| 437 | x = pow[255 - log[i]];
|
---|
| 438 |
|
---|
| 439 | y = x; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF;
|
---|
| 440 | x ^= y; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF;
|
---|
| 441 | x ^= y; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF;
|
---|
| 442 | x ^= y; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF;
|
---|
| 443 | x ^= y ^ 0x63;
|
---|
| 444 |
|
---|
| 445 | FSb[i] = (unsigned char) x;
|
---|
| 446 | RSb[x] = (unsigned char) i;
|
---|
| 447 | }
|
---|
| 448 |
|
---|
| 449 | /*
|
---|
| 450 | * generate the forward and reverse tables
|
---|
| 451 | */
|
---|
| 452 | for( i = 0; i < 256; i++ )
|
---|
| 453 | {
|
---|
| 454 | x = FSb[i];
|
---|
| 455 | y = XTIME( x ) & 0xFF;
|
---|
| 456 | z = ( y ^ x ) & 0xFF;
|
---|
| 457 |
|
---|
| 458 | FT0[i] = ( (uint32_t) y ) ^
|
---|
| 459 | ( (uint32_t) x << 8 ) ^
|
---|
| 460 | ( (uint32_t) x << 16 ) ^
|
---|
| 461 | ( (uint32_t) z << 24 );
|
---|
| 462 |
|
---|
| 463 | #if !defined(MBEDTLS_AES_FEWER_TABLES)
|
---|
| 464 | FT1[i] = ROTL8( FT0[i] );
|
---|
| 465 | FT2[i] = ROTL8( FT1[i] );
|
---|
| 466 | FT3[i] = ROTL8( FT2[i] );
|
---|
| 467 | #endif /* !MBEDTLS_AES_FEWER_TABLES */
|
---|
| 468 |
|
---|
| 469 | x = RSb[i];
|
---|
| 470 |
|
---|
| 471 | RT0[i] = ( (uint32_t) MUL( 0x0E, x ) ) ^
|
---|
| 472 | ( (uint32_t) MUL( 0x09, x ) << 8 ) ^
|
---|
| 473 | ( (uint32_t) MUL( 0x0D, x ) << 16 ) ^
|
---|
| 474 | ( (uint32_t) MUL( 0x0B, x ) << 24 );
|
---|
| 475 |
|
---|
| 476 | #if !defined(MBEDTLS_AES_FEWER_TABLES)
|
---|
| 477 | RT1[i] = ROTL8( RT0[i] );
|
---|
| 478 | RT2[i] = ROTL8( RT1[i] );
|
---|
| 479 | RT3[i] = ROTL8( RT2[i] );
|
---|
| 480 | #endif /* !MBEDTLS_AES_FEWER_TABLES */
|
---|
| 481 | }
|
---|
| 482 | }
|
---|
| 483 |
|
---|
| 484 | #undef ROTL8
|
---|
| 485 |
|
---|
| 486 | #endif /* MBEDTLS_AES_ROM_TABLES */
|
---|
| 487 |
|
---|
| 488 | #if defined(MBEDTLS_AES_FEWER_TABLES)
|
---|
| 489 |
|
---|
| 490 | #define ROTL8(x) ( (uint32_t)( ( x ) << 8 ) + (uint32_t)( ( x ) >> 24 ) )
|
---|
| 491 | #define ROTL16(x) ( (uint32_t)( ( x ) << 16 ) + (uint32_t)( ( x ) >> 16 ) )
|
---|
| 492 | #define ROTL24(x) ( (uint32_t)( ( x ) << 24 ) + (uint32_t)( ( x ) >> 8 ) )
|
---|
| 493 |
|
---|
| 494 | #define AES_RT0(idx) RT0[idx]
|
---|
| 495 | #define AES_RT1(idx) ROTL8( RT0[idx] )
|
---|
| 496 | #define AES_RT2(idx) ROTL16( RT0[idx] )
|
---|
| 497 | #define AES_RT3(idx) ROTL24( RT0[idx] )
|
---|
| 498 |
|
---|
| 499 | #define AES_FT0(idx) FT0[idx]
|
---|
| 500 | #define AES_FT1(idx) ROTL8( FT0[idx] )
|
---|
| 501 | #define AES_FT2(idx) ROTL16( FT0[idx] )
|
---|
| 502 | #define AES_FT3(idx) ROTL24( FT0[idx] )
|
---|
| 503 |
|
---|
| 504 | #else /* MBEDTLS_AES_FEWER_TABLES */
|
---|
| 505 |
|
---|
| 506 | #define AES_RT0(idx) RT0[idx]
|
---|
| 507 | #define AES_RT1(idx) RT1[idx]
|
---|
| 508 | #define AES_RT2(idx) RT2[idx]
|
---|
| 509 | #define AES_RT3(idx) RT3[idx]
|
---|
| 510 |
|
---|
| 511 | #define AES_FT0(idx) FT0[idx]
|
---|
| 512 | #define AES_FT1(idx) FT1[idx]
|
---|
| 513 | #define AES_FT2(idx) FT2[idx]
|
---|
| 514 | #define AES_FT3(idx) FT3[idx]
|
---|
| 515 |
|
---|
| 516 | #endif /* MBEDTLS_AES_FEWER_TABLES */
|
---|
| 517 |
|
---|
| 518 | void mbedtls_aes_init( mbedtls_aes_context *ctx )
|
---|
| 519 | {
|
---|
| 520 | AES_VALIDATE( ctx != NULL );
|
---|
| 521 |
|
---|
| 522 | memset( ctx, 0, sizeof( mbedtls_aes_context ) );
|
---|
| 523 | }
|
---|
| 524 |
|
---|
| 525 | void mbedtls_aes_free( mbedtls_aes_context *ctx )
|
---|
| 526 | {
|
---|
| 527 | if( ctx == NULL )
|
---|
| 528 | return;
|
---|
| 529 |
|
---|
| 530 | mbedtls_platform_zeroize( ctx, sizeof( mbedtls_aes_context ) );
|
---|
| 531 | }
|
---|
| 532 |
|
---|
| 533 | #if defined(MBEDTLS_CIPHER_MODE_XTS)
|
---|
| 534 | void mbedtls_aes_xts_init( mbedtls_aes_xts_context *ctx )
|
---|
| 535 | {
|
---|
| 536 | AES_VALIDATE( ctx != NULL );
|
---|
| 537 |
|
---|
| 538 | mbedtls_aes_init( &ctx->crypt );
|
---|
| 539 | mbedtls_aes_init( &ctx->tweak );
|
---|
| 540 | }
|
---|
| 541 |
|
---|
| 542 | void mbedtls_aes_xts_free( mbedtls_aes_xts_context *ctx )
|
---|
| 543 | {
|
---|
| 544 | if( ctx == NULL )
|
---|
| 545 | return;
|
---|
| 546 |
|
---|
| 547 | mbedtls_aes_free( &ctx->crypt );
|
---|
| 548 | mbedtls_aes_free( &ctx->tweak );
|
---|
| 549 | }
|
---|
| 550 | #endif /* MBEDTLS_CIPHER_MODE_XTS */
|
---|
| 551 |
|
---|
| 552 | /*
|
---|
| 553 | * AES key schedule (encryption)
|
---|
| 554 | */
|
---|
| 555 | #if !defined(MBEDTLS_AES_SETKEY_ENC_ALT)
|
---|
| 556 | int mbedtls_aes_setkey_enc( mbedtls_aes_context *ctx, const unsigned char *key,
|
---|
| 557 | unsigned int keybits )
|
---|
| 558 | {
|
---|
| 559 | unsigned int i;
|
---|
| 560 | uint32_t *RK;
|
---|
| 561 |
|
---|
| 562 | AES_VALIDATE_RET( ctx != NULL );
|
---|
| 563 | AES_VALIDATE_RET( key != NULL );
|
---|
| 564 |
|
---|
| 565 | switch( keybits )
|
---|
| 566 | {
|
---|
| 567 | case 128: ctx->nr = 10; break;
|
---|
| 568 | case 192: ctx->nr = 12; break;
|
---|
| 569 | case 256: ctx->nr = 14; break;
|
---|
| 570 | default : return( MBEDTLS_ERR_AES_INVALID_KEY_LENGTH );
|
---|
| 571 | }
|
---|
| 572 |
|
---|
| 573 | #if !defined(MBEDTLS_AES_ROM_TABLES)
|
---|
| 574 | if( aes_init_done == 0 )
|
---|
| 575 | {
|
---|
| 576 | aes_gen_tables();
|
---|
| 577 | aes_init_done = 1;
|
---|
| 578 | }
|
---|
| 579 | #endif
|
---|
| 580 |
|
---|
| 581 | #if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_PADLOCK_ALIGN16)
|
---|
| 582 | if( aes_padlock_ace == -1 )
|
---|
| 583 | aes_padlock_ace = mbedtls_padlock_has_support( MBEDTLS_PADLOCK_ACE );
|
---|
| 584 |
|
---|
| 585 | if( aes_padlock_ace )
|
---|
| 586 | ctx->rk = RK = MBEDTLS_PADLOCK_ALIGN16( ctx->buf );
|
---|
| 587 | else
|
---|
| 588 | #endif
|
---|
| 589 | ctx->rk = RK = ctx->buf;
|
---|
| 590 |
|
---|
| 591 | #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
|
---|
| 592 | if( mbedtls_aesni_has_support( MBEDTLS_AESNI_AES ) )
|
---|
| 593 | return( mbedtls_aesni_setkey_enc( (unsigned char *) ctx->rk, key, keybits ) );
|
---|
| 594 | #endif
|
---|
| 595 |
|
---|
| 596 | for( i = 0; i < ( keybits >> 5 ); i++ )
|
---|
| 597 | {
|
---|
| 598 | GET_UINT32_LE( RK[i], key, i << 2 );
|
---|
| 599 | }
|
---|
| 600 |
|
---|
| 601 | switch( ctx->nr )
|
---|
| 602 | {
|
---|
| 603 | case 10:
|
---|
| 604 |
|
---|
| 605 | for( i = 0; i < 10; i++, RK += 4 )
|
---|
| 606 | {
|
---|
| 607 | RK[4] = RK[0] ^ RCON[i] ^
|
---|
| 608 | ( (uint32_t) FSb[ ( RK[3] >> 8 ) & 0xFF ] ) ^
|
---|
| 609 | ( (uint32_t) FSb[ ( RK[3] >> 16 ) & 0xFF ] << 8 ) ^
|
---|
| 610 | ( (uint32_t) FSb[ ( RK[3] >> 24 ) & 0xFF ] << 16 ) ^
|
---|
| 611 | ( (uint32_t) FSb[ ( RK[3] ) & 0xFF ] << 24 );
|
---|
| 612 |
|
---|
| 613 | RK[5] = RK[1] ^ RK[4];
|
---|
| 614 | RK[6] = RK[2] ^ RK[5];
|
---|
| 615 | RK[7] = RK[3] ^ RK[6];
|
---|
| 616 | }
|
---|
| 617 | break;
|
---|
| 618 |
|
---|
| 619 | case 12:
|
---|
| 620 |
|
---|
| 621 | for( i = 0; i < 8; i++, RK += 6 )
|
---|
| 622 | {
|
---|
| 623 | RK[6] = RK[0] ^ RCON[i] ^
|
---|
| 624 | ( (uint32_t) FSb[ ( RK[5] >> 8 ) & 0xFF ] ) ^
|
---|
| 625 | ( (uint32_t) FSb[ ( RK[5] >> 16 ) & 0xFF ] << 8 ) ^
|
---|
| 626 | ( (uint32_t) FSb[ ( RK[5] >> 24 ) & 0xFF ] << 16 ) ^
|
---|
| 627 | ( (uint32_t) FSb[ ( RK[5] ) & 0xFF ] << 24 );
|
---|
| 628 |
|
---|
| 629 | RK[7] = RK[1] ^ RK[6];
|
---|
| 630 | RK[8] = RK[2] ^ RK[7];
|
---|
| 631 | RK[9] = RK[3] ^ RK[8];
|
---|
| 632 | RK[10] = RK[4] ^ RK[9];
|
---|
| 633 | RK[11] = RK[5] ^ RK[10];
|
---|
| 634 | }
|
---|
| 635 | break;
|
---|
| 636 |
|
---|
| 637 | case 14:
|
---|
| 638 |
|
---|
| 639 | for( i = 0; i < 7; i++, RK += 8 )
|
---|
| 640 | {
|
---|
| 641 | RK[8] = RK[0] ^ RCON[i] ^
|
---|
| 642 | ( (uint32_t) FSb[ ( RK[7] >> 8 ) & 0xFF ] ) ^
|
---|
| 643 | ( (uint32_t) FSb[ ( RK[7] >> 16 ) & 0xFF ] << 8 ) ^
|
---|
| 644 | ( (uint32_t) FSb[ ( RK[7] >> 24 ) & 0xFF ] << 16 ) ^
|
---|
| 645 | ( (uint32_t) FSb[ ( RK[7] ) & 0xFF ] << 24 );
|
---|
| 646 |
|
---|
| 647 | RK[9] = RK[1] ^ RK[8];
|
---|
| 648 | RK[10] = RK[2] ^ RK[9];
|
---|
| 649 | RK[11] = RK[3] ^ RK[10];
|
---|
| 650 |
|
---|
| 651 | RK[12] = RK[4] ^
|
---|
| 652 | ( (uint32_t) FSb[ ( RK[11] ) & 0xFF ] ) ^
|
---|
| 653 | ( (uint32_t) FSb[ ( RK[11] >> 8 ) & 0xFF ] << 8 ) ^
|
---|
| 654 | ( (uint32_t) FSb[ ( RK[11] >> 16 ) & 0xFF ] << 16 ) ^
|
---|
| 655 | ( (uint32_t) FSb[ ( RK[11] >> 24 ) & 0xFF ] << 24 );
|
---|
| 656 |
|
---|
| 657 | RK[13] = RK[5] ^ RK[12];
|
---|
| 658 | RK[14] = RK[6] ^ RK[13];
|
---|
| 659 | RK[15] = RK[7] ^ RK[14];
|
---|
| 660 | }
|
---|
| 661 | break;
|
---|
| 662 | }
|
---|
| 663 |
|
---|
| 664 | return( 0 );
|
---|
| 665 | }
|
---|
| 666 | #endif /* !MBEDTLS_AES_SETKEY_ENC_ALT */
|
---|
| 667 |
|
---|
| 668 | /*
|
---|
| 669 | * AES key schedule (decryption)
|
---|
| 670 | */
|
---|
| 671 | #if !defined(MBEDTLS_AES_SETKEY_DEC_ALT)
|
---|
| 672 | int mbedtls_aes_setkey_dec( mbedtls_aes_context *ctx, const unsigned char *key,
|
---|
| 673 | unsigned int keybits )
|
---|
| 674 | {
|
---|
| 675 | int i, j, ret;
|
---|
| 676 | mbedtls_aes_context cty;
|
---|
| 677 | uint32_t *RK;
|
---|
| 678 | uint32_t *SK;
|
---|
| 679 |
|
---|
| 680 | AES_VALIDATE_RET( ctx != NULL );
|
---|
| 681 | AES_VALIDATE_RET( key != NULL );
|
---|
| 682 |
|
---|
| 683 | mbedtls_aes_init( &cty );
|
---|
| 684 |
|
---|
| 685 | #if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_PADLOCK_ALIGN16)
|
---|
| 686 | if( aes_padlock_ace == -1 )
|
---|
| 687 | aes_padlock_ace = mbedtls_padlock_has_support( MBEDTLS_PADLOCK_ACE );
|
---|
| 688 |
|
---|
| 689 | if( aes_padlock_ace )
|
---|
| 690 | ctx->rk = RK = MBEDTLS_PADLOCK_ALIGN16( ctx->buf );
|
---|
| 691 | else
|
---|
| 692 | #endif
|
---|
| 693 | ctx->rk = RK = ctx->buf;
|
---|
| 694 |
|
---|
| 695 | /* Also checks keybits */
|
---|
| 696 | if( ( ret = mbedtls_aes_setkey_enc( &cty, key, keybits ) ) != 0 )
|
---|
| 697 | goto exit;
|
---|
| 698 |
|
---|
| 699 | ctx->nr = cty.nr;
|
---|
| 700 |
|
---|
| 701 | #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
|
---|
| 702 | if( mbedtls_aesni_has_support( MBEDTLS_AESNI_AES ) )
|
---|
| 703 | {
|
---|
| 704 | mbedtls_aesni_inverse_key( (unsigned char *) ctx->rk,
|
---|
| 705 | (const unsigned char *) cty.rk, ctx->nr );
|
---|
| 706 | goto exit;
|
---|
| 707 | }
|
---|
| 708 | #endif
|
---|
| 709 |
|
---|
| 710 | SK = cty.rk + cty.nr * 4;
|
---|
| 711 |
|
---|
| 712 | *RK++ = *SK++;
|
---|
| 713 | *RK++ = *SK++;
|
---|
| 714 | *RK++ = *SK++;
|
---|
| 715 | *RK++ = *SK++;
|
---|
| 716 |
|
---|
| 717 | for( i = ctx->nr - 1, SK -= 8; i > 0; i--, SK -= 8 )
|
---|
| 718 | {
|
---|
| 719 | for( j = 0; j < 4; j++, SK++ )
|
---|
| 720 | {
|
---|
| 721 | *RK++ = AES_RT0( FSb[ ( *SK ) & 0xFF ] ) ^
|
---|
| 722 | AES_RT1( FSb[ ( *SK >> 8 ) & 0xFF ] ) ^
|
---|
| 723 | AES_RT2( FSb[ ( *SK >> 16 ) & 0xFF ] ) ^
|
---|
| 724 | AES_RT3( FSb[ ( *SK >> 24 ) & 0xFF ] );
|
---|
| 725 | }
|
---|
| 726 | }
|
---|
| 727 |
|
---|
| 728 | *RK++ = *SK++;
|
---|
| 729 | *RK++ = *SK++;
|
---|
| 730 | *RK++ = *SK++;
|
---|
| 731 | *RK++ = *SK++;
|
---|
| 732 |
|
---|
| 733 | exit:
|
---|
| 734 | mbedtls_aes_free( &cty );
|
---|
| 735 |
|
---|
| 736 | return( ret );
|
---|
| 737 | }
|
---|
| 738 |
|
---|
| 739 | #if defined(MBEDTLS_CIPHER_MODE_XTS)
|
---|
| 740 | static int mbedtls_aes_xts_decode_keys( const unsigned char *key,
|
---|
| 741 | unsigned int keybits,
|
---|
| 742 | const unsigned char **key1,
|
---|
| 743 | unsigned int *key1bits,
|
---|
| 744 | const unsigned char **key2,
|
---|
| 745 | unsigned int *key2bits )
|
---|
| 746 | {
|
---|
| 747 | const unsigned int half_keybits = keybits / 2;
|
---|
| 748 | const unsigned int half_keybytes = half_keybits / 8;
|
---|
| 749 |
|
---|
| 750 | switch( keybits )
|
---|
| 751 | {
|
---|
| 752 | case 256: break;
|
---|
| 753 | case 512: break;
|
---|
| 754 | default : return( MBEDTLS_ERR_AES_INVALID_KEY_LENGTH );
|
---|
| 755 | }
|
---|
| 756 |
|
---|
| 757 | *key1bits = half_keybits;
|
---|
| 758 | *key2bits = half_keybits;
|
---|
| 759 | *key1 = &key[0];
|
---|
| 760 | *key2 = &key[half_keybytes];
|
---|
| 761 |
|
---|
| 762 | return 0;
|
---|
| 763 | }
|
---|
| 764 |
|
---|
| 765 | int mbedtls_aes_xts_setkey_enc( mbedtls_aes_xts_context *ctx,
|
---|
| 766 | const unsigned char *key,
|
---|
| 767 | unsigned int keybits)
|
---|
| 768 | {
|
---|
| 769 | int ret;
|
---|
| 770 | const unsigned char *key1, *key2;
|
---|
| 771 | unsigned int key1bits, key2bits;
|
---|
| 772 |
|
---|
| 773 | AES_VALIDATE_RET( ctx != NULL );
|
---|
| 774 | AES_VALIDATE_RET( key != NULL );
|
---|
| 775 |
|
---|
| 776 | ret = mbedtls_aes_xts_decode_keys( key, keybits, &key1, &key1bits,
|
---|
| 777 | &key2, &key2bits );
|
---|
| 778 | if( ret != 0 )
|
---|
| 779 | return( ret );
|
---|
| 780 |
|
---|
| 781 | /* Set the tweak key. Always set tweak key for the encryption mode. */
|
---|
| 782 | ret = mbedtls_aes_setkey_enc( &ctx->tweak, key2, key2bits );
|
---|
| 783 | if( ret != 0 )
|
---|
| 784 | return( ret );
|
---|
| 785 |
|
---|
| 786 | /* Set crypt key for encryption. */
|
---|
| 787 | return mbedtls_aes_setkey_enc( &ctx->crypt, key1, key1bits );
|
---|
| 788 | }
|
---|
| 789 |
|
---|
| 790 | int mbedtls_aes_xts_setkey_dec( mbedtls_aes_xts_context *ctx,
|
---|
| 791 | const unsigned char *key,
|
---|
| 792 | unsigned int keybits)
|
---|
| 793 | {
|
---|
| 794 | int ret;
|
---|
| 795 | const unsigned char *key1, *key2;
|
---|
| 796 | unsigned int key1bits, key2bits;
|
---|
| 797 |
|
---|
| 798 | AES_VALIDATE_RET( ctx != NULL );
|
---|
| 799 | AES_VALIDATE_RET( key != NULL );
|
---|
| 800 |
|
---|
| 801 | ret = mbedtls_aes_xts_decode_keys( key, keybits, &key1, &key1bits,
|
---|
| 802 | &key2, &key2bits );
|
---|
| 803 | if( ret != 0 )
|
---|
| 804 | return( ret );
|
---|
| 805 |
|
---|
| 806 | /* Set the tweak key. Always set tweak key for encryption. */
|
---|
| 807 | ret = mbedtls_aes_setkey_enc( &ctx->tweak, key2, key2bits );
|
---|
| 808 | if( ret != 0 )
|
---|
| 809 | return( ret );
|
---|
| 810 |
|
---|
| 811 | /* Set crypt key for decryption. */
|
---|
| 812 | return mbedtls_aes_setkey_dec( &ctx->crypt, key1, key1bits );
|
---|
| 813 | }
|
---|
| 814 | #endif /* MBEDTLS_CIPHER_MODE_XTS */
|
---|
| 815 |
|
---|
| 816 | #endif /* !MBEDTLS_AES_SETKEY_DEC_ALT */
|
---|
| 817 |
|
---|
| 818 | #define AES_FROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3) \
|
---|
| 819 | { \
|
---|
| 820 | X0 = *RK++ ^ AES_FT0( ( Y0 ) & 0xFF ) ^ \
|
---|
| 821 | AES_FT1( ( Y1 >> 8 ) & 0xFF ) ^ \
|
---|
| 822 | AES_FT2( ( Y2 >> 16 ) & 0xFF ) ^ \
|
---|
| 823 | AES_FT3( ( Y3 >> 24 ) & 0xFF ); \
|
---|
| 824 | \
|
---|
| 825 | X1 = *RK++ ^ AES_FT0( ( Y1 ) & 0xFF ) ^ \
|
---|
| 826 | AES_FT1( ( Y2 >> 8 ) & 0xFF ) ^ \
|
---|
| 827 | AES_FT2( ( Y3 >> 16 ) & 0xFF ) ^ \
|
---|
| 828 | AES_FT3( ( Y0 >> 24 ) & 0xFF ); \
|
---|
| 829 | \
|
---|
| 830 | X2 = *RK++ ^ AES_FT0( ( Y2 ) & 0xFF ) ^ \
|
---|
| 831 | AES_FT1( ( Y3 >> 8 ) & 0xFF ) ^ \
|
---|
| 832 | AES_FT2( ( Y0 >> 16 ) & 0xFF ) ^ \
|
---|
| 833 | AES_FT3( ( Y1 >> 24 ) & 0xFF ); \
|
---|
| 834 | \
|
---|
| 835 | X3 = *RK++ ^ AES_FT0( ( Y3 ) & 0xFF ) ^ \
|
---|
| 836 | AES_FT1( ( Y0 >> 8 ) & 0xFF ) ^ \
|
---|
| 837 | AES_FT2( ( Y1 >> 16 ) & 0xFF ) ^ \
|
---|
| 838 | AES_FT3( ( Y2 >> 24 ) & 0xFF ); \
|
---|
| 839 | }
|
---|
| 840 |
|
---|
| 841 | #define AES_RROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3) \
|
---|
| 842 | { \
|
---|
| 843 | X0 = *RK++ ^ AES_RT0( ( Y0 ) & 0xFF ) ^ \
|
---|
| 844 | AES_RT1( ( Y3 >> 8 ) & 0xFF ) ^ \
|
---|
| 845 | AES_RT2( ( Y2 >> 16 ) & 0xFF ) ^ \
|
---|
| 846 | AES_RT3( ( Y1 >> 24 ) & 0xFF ); \
|
---|
| 847 | \
|
---|
| 848 | X1 = *RK++ ^ AES_RT0( ( Y1 ) & 0xFF ) ^ \
|
---|
| 849 | AES_RT1( ( Y0 >> 8 ) & 0xFF ) ^ \
|
---|
| 850 | AES_RT2( ( Y3 >> 16 ) & 0xFF ) ^ \
|
---|
| 851 | AES_RT3( ( Y2 >> 24 ) & 0xFF ); \
|
---|
| 852 | \
|
---|
| 853 | X2 = *RK++ ^ AES_RT0( ( Y2 ) & 0xFF ) ^ \
|
---|
| 854 | AES_RT1( ( Y1 >> 8 ) & 0xFF ) ^ \
|
---|
| 855 | AES_RT2( ( Y0 >> 16 ) & 0xFF ) ^ \
|
---|
| 856 | AES_RT3( ( Y3 >> 24 ) & 0xFF ); \
|
---|
| 857 | \
|
---|
| 858 | X3 = *RK++ ^ AES_RT0( ( Y3 ) & 0xFF ) ^ \
|
---|
| 859 | AES_RT1( ( Y2 >> 8 ) & 0xFF ) ^ \
|
---|
| 860 | AES_RT2( ( Y1 >> 16 ) & 0xFF ) ^ \
|
---|
| 861 | AES_RT3( ( Y0 >> 24 ) & 0xFF ); \
|
---|
| 862 | }
|
---|
| 863 |
|
---|
| 864 | /*
|
---|
| 865 | * AES-ECB block encryption
|
---|
| 866 | */
|
---|
| 867 | #if !defined(MBEDTLS_AES_ENCRYPT_ALT)
|
---|
| 868 | int mbedtls_internal_aes_encrypt( mbedtls_aes_context *ctx,
|
---|
| 869 | const unsigned char input[16],
|
---|
| 870 | unsigned char output[16] )
|
---|
| 871 | {
|
---|
| 872 | int i;
|
---|
| 873 | uint32_t *RK, X0, X1, X2, X3, Y0, Y1, Y2, Y3;
|
---|
| 874 |
|
---|
| 875 | RK = ctx->rk;
|
---|
| 876 |
|
---|
| 877 | GET_UINT32_LE( X0, input, 0 ); X0 ^= *RK++;
|
---|
| 878 | GET_UINT32_LE( X1, input, 4 ); X1 ^= *RK++;
|
---|
| 879 | GET_UINT32_LE( X2, input, 8 ); X2 ^= *RK++;
|
---|
| 880 | GET_UINT32_LE( X3, input, 12 ); X3 ^= *RK++;
|
---|
| 881 |
|
---|
| 882 | for( i = ( ctx->nr >> 1 ) - 1; i > 0; i-- )
|
---|
| 883 | {
|
---|
| 884 | AES_FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );
|
---|
| 885 | AES_FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );
|
---|
| 886 | }
|
---|
| 887 |
|
---|
| 888 | AES_FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );
|
---|
| 889 |
|
---|
| 890 | X0 = *RK++ ^ \
|
---|
| 891 | ( (uint32_t) FSb[ ( Y0 ) & 0xFF ] ) ^
|
---|
| 892 | ( (uint32_t) FSb[ ( Y1 >> 8 ) & 0xFF ] << 8 ) ^
|
---|
| 893 | ( (uint32_t) FSb[ ( Y2 >> 16 ) & 0xFF ] << 16 ) ^
|
---|
| 894 | ( (uint32_t) FSb[ ( Y3 >> 24 ) & 0xFF ] << 24 );
|
---|
| 895 |
|
---|
| 896 | X1 = *RK++ ^ \
|
---|
| 897 | ( (uint32_t) FSb[ ( Y1 ) & 0xFF ] ) ^
|
---|
| 898 | ( (uint32_t) FSb[ ( Y2 >> 8 ) & 0xFF ] << 8 ) ^
|
---|
| 899 | ( (uint32_t) FSb[ ( Y3 >> 16 ) & 0xFF ] << 16 ) ^
|
---|
| 900 | ( (uint32_t) FSb[ ( Y0 >> 24 ) & 0xFF ] << 24 );
|
---|
| 901 |
|
---|
| 902 | X2 = *RK++ ^ \
|
---|
| 903 | ( (uint32_t) FSb[ ( Y2 ) & 0xFF ] ) ^
|
---|
| 904 | ( (uint32_t) FSb[ ( Y3 >> 8 ) & 0xFF ] << 8 ) ^
|
---|
| 905 | ( (uint32_t) FSb[ ( Y0 >> 16 ) & 0xFF ] << 16 ) ^
|
---|
| 906 | ( (uint32_t) FSb[ ( Y1 >> 24 ) & 0xFF ] << 24 );
|
---|
| 907 |
|
---|
| 908 | X3 = *RK++ ^ \
|
---|
| 909 | ( (uint32_t) FSb[ ( Y3 ) & 0xFF ] ) ^
|
---|
| 910 | ( (uint32_t) FSb[ ( Y0 >> 8 ) & 0xFF ] << 8 ) ^
|
---|
| 911 | ( (uint32_t) FSb[ ( Y1 >> 16 ) & 0xFF ] << 16 ) ^
|
---|
| 912 | ( (uint32_t) FSb[ ( Y2 >> 24 ) & 0xFF ] << 24 );
|
---|
| 913 |
|
---|
| 914 | PUT_UINT32_LE( X0, output, 0 );
|
---|
| 915 | PUT_UINT32_LE( X1, output, 4 );
|
---|
| 916 | PUT_UINT32_LE( X2, output, 8 );
|
---|
| 917 | PUT_UINT32_LE( X3, output, 12 );
|
---|
| 918 |
|
---|
| 919 | return( 0 );
|
---|
| 920 | }
|
---|
| 921 | #endif /* !MBEDTLS_AES_ENCRYPT_ALT */
|
---|
| 922 |
|
---|
| 923 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
|
---|
| 924 | void mbedtls_aes_encrypt( mbedtls_aes_context *ctx,
|
---|
| 925 | const unsigned char input[16],
|
---|
| 926 | unsigned char output[16] )
|
---|
| 927 | {
|
---|
| 928 | mbedtls_internal_aes_encrypt( ctx, input, output );
|
---|
| 929 | }
|
---|
| 930 | #endif /* !MBEDTLS_DEPRECATED_REMOVED */
|
---|
| 931 |
|
---|
| 932 | /*
|
---|
| 933 | * AES-ECB block decryption
|
---|
| 934 | */
|
---|
| 935 | #if !defined(MBEDTLS_AES_DECRYPT_ALT)
|
---|
| 936 | int mbedtls_internal_aes_decrypt( mbedtls_aes_context *ctx,
|
---|
| 937 | const unsigned char input[16],
|
---|
| 938 | unsigned char output[16] )
|
---|
| 939 | {
|
---|
| 940 | int i;
|
---|
| 941 | uint32_t *RK, X0, X1, X2, X3, Y0, Y1, Y2, Y3;
|
---|
| 942 |
|
---|
| 943 | RK = ctx->rk;
|
---|
| 944 |
|
---|
| 945 | GET_UINT32_LE( X0, input, 0 ); X0 ^= *RK++;
|
---|
| 946 | GET_UINT32_LE( X1, input, 4 ); X1 ^= *RK++;
|
---|
| 947 | GET_UINT32_LE( X2, input, 8 ); X2 ^= *RK++;
|
---|
| 948 | GET_UINT32_LE( X3, input, 12 ); X3 ^= *RK++;
|
---|
| 949 |
|
---|
| 950 | for( i = ( ctx->nr >> 1 ) - 1; i > 0; i-- )
|
---|
| 951 | {
|
---|
| 952 | AES_RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );
|
---|
| 953 | AES_RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );
|
---|
| 954 | }
|
---|
| 955 |
|
---|
| 956 | AES_RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );
|
---|
| 957 |
|
---|
| 958 | X0 = *RK++ ^ \
|
---|
| 959 | ( (uint32_t) RSb[ ( Y0 ) & 0xFF ] ) ^
|
---|
| 960 | ( (uint32_t) RSb[ ( Y3 >> 8 ) & 0xFF ] << 8 ) ^
|
---|
| 961 | ( (uint32_t) RSb[ ( Y2 >> 16 ) & 0xFF ] << 16 ) ^
|
---|
| 962 | ( (uint32_t) RSb[ ( Y1 >> 24 ) & 0xFF ] << 24 );
|
---|
| 963 |
|
---|
| 964 | X1 = *RK++ ^ \
|
---|
| 965 | ( (uint32_t) RSb[ ( Y1 ) & 0xFF ] ) ^
|
---|
| 966 | ( (uint32_t) RSb[ ( Y0 >> 8 ) & 0xFF ] << 8 ) ^
|
---|
| 967 | ( (uint32_t) RSb[ ( Y3 >> 16 ) & 0xFF ] << 16 ) ^
|
---|
| 968 | ( (uint32_t) RSb[ ( Y2 >> 24 ) & 0xFF ] << 24 );
|
---|
| 969 |
|
---|
| 970 | X2 = *RK++ ^ \
|
---|
| 971 | ( (uint32_t) RSb[ ( Y2 ) & 0xFF ] ) ^
|
---|
| 972 | ( (uint32_t) RSb[ ( Y1 >> 8 ) & 0xFF ] << 8 ) ^
|
---|
| 973 | ( (uint32_t) RSb[ ( Y0 >> 16 ) & 0xFF ] << 16 ) ^
|
---|
| 974 | ( (uint32_t) RSb[ ( Y3 >> 24 ) & 0xFF ] << 24 );
|
---|
| 975 |
|
---|
| 976 | X3 = *RK++ ^ \
|
---|
| 977 | ( (uint32_t) RSb[ ( Y3 ) & 0xFF ] ) ^
|
---|
| 978 | ( (uint32_t) RSb[ ( Y2 >> 8 ) & 0xFF ] << 8 ) ^
|
---|
| 979 | ( (uint32_t) RSb[ ( Y1 >> 16 ) & 0xFF ] << 16 ) ^
|
---|
| 980 | ( (uint32_t) RSb[ ( Y0 >> 24 ) & 0xFF ] << 24 );
|
---|
| 981 |
|
---|
| 982 | PUT_UINT32_LE( X0, output, 0 );
|
---|
| 983 | PUT_UINT32_LE( X1, output, 4 );
|
---|
| 984 | PUT_UINT32_LE( X2, output, 8 );
|
---|
| 985 | PUT_UINT32_LE( X3, output, 12 );
|
---|
| 986 |
|
---|
| 987 | return( 0 );
|
---|
| 988 | }
|
---|
| 989 | #endif /* !MBEDTLS_AES_DECRYPT_ALT */
|
---|
| 990 |
|
---|
| 991 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
|
---|
| 992 | void mbedtls_aes_decrypt( mbedtls_aes_context *ctx,
|
---|
| 993 | const unsigned char input[16],
|
---|
| 994 | unsigned char output[16] )
|
---|
| 995 | {
|
---|
| 996 | mbedtls_internal_aes_decrypt( ctx, input, output );
|
---|
| 997 | }
|
---|
| 998 | #endif /* !MBEDTLS_DEPRECATED_REMOVED */
|
---|
| 999 |
|
---|
| 1000 | /*
|
---|
| 1001 | * AES-ECB block encryption/decryption
|
---|
| 1002 | */
|
---|
| 1003 | int mbedtls_aes_crypt_ecb( mbedtls_aes_context *ctx,
|
---|
| 1004 | int mode,
|
---|
| 1005 | const unsigned char input[16],
|
---|
| 1006 | unsigned char output[16] )
|
---|
| 1007 | {
|
---|
| 1008 | AES_VALIDATE_RET( ctx != NULL );
|
---|
| 1009 | AES_VALIDATE_RET( input != NULL );
|
---|
| 1010 | AES_VALIDATE_RET( output != NULL );
|
---|
| 1011 | AES_VALIDATE_RET( mode == MBEDTLS_AES_ENCRYPT ||
|
---|
| 1012 | mode == MBEDTLS_AES_DECRYPT );
|
---|
| 1013 |
|
---|
| 1014 | #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
|
---|
| 1015 | if( mbedtls_aesni_has_support( MBEDTLS_AESNI_AES ) )
|
---|
| 1016 | return( mbedtls_aesni_crypt_ecb( ctx, mode, input, output ) );
|
---|
| 1017 | #endif
|
---|
| 1018 |
|
---|
| 1019 | #if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_HAVE_X86)
|
---|
| 1020 | if( aes_padlock_ace )
|
---|
| 1021 | {
|
---|
| 1022 | if( mbedtls_padlock_xcryptecb( ctx, mode, input, output ) == 0 )
|
---|
| 1023 | return( 0 );
|
---|
| 1024 |
|
---|
| 1025 | // If padlock data misaligned, we just fall back to
|
---|
| 1026 | // unaccelerated mode
|
---|
| 1027 | //
|
---|
| 1028 | }
|
---|
| 1029 | #endif
|
---|
| 1030 |
|
---|
| 1031 | if( mode == MBEDTLS_AES_ENCRYPT )
|
---|
| 1032 | return( mbedtls_internal_aes_encrypt( ctx, input, output ) );
|
---|
| 1033 | else
|
---|
| 1034 | return( mbedtls_internal_aes_decrypt( ctx, input, output ) );
|
---|
| 1035 | }
|
---|
| 1036 |
|
---|
| 1037 | #if defined(MBEDTLS_CIPHER_MODE_CBC)
|
---|
| 1038 | /*
|
---|
| 1039 | * AES-CBC buffer encryption/decryption
|
---|
| 1040 | */
|
---|
| 1041 | int mbedtls_aes_crypt_cbc( mbedtls_aes_context *ctx,
|
---|
| 1042 | int mode,
|
---|
| 1043 | size_t length,
|
---|
| 1044 | unsigned char iv[16],
|
---|
| 1045 | const unsigned char *input,
|
---|
| 1046 | unsigned char *output )
|
---|
| 1047 | {
|
---|
| 1048 | int i;
|
---|
| 1049 | unsigned char temp[16];
|
---|
| 1050 |
|
---|
| 1051 | AES_VALIDATE_RET( ctx != NULL );
|
---|
| 1052 | AES_VALIDATE_RET( mode == MBEDTLS_AES_ENCRYPT ||
|
---|
| 1053 | mode == MBEDTLS_AES_DECRYPT );
|
---|
| 1054 | AES_VALIDATE_RET( iv != NULL );
|
---|
| 1055 | AES_VALIDATE_RET( input != NULL );
|
---|
| 1056 | AES_VALIDATE_RET( output != NULL );
|
---|
| 1057 |
|
---|
| 1058 | if( length % 16 )
|
---|
| 1059 | return( MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH );
|
---|
| 1060 |
|
---|
| 1061 | #if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_HAVE_X86)
|
---|
| 1062 | if( aes_padlock_ace )
|
---|
| 1063 | {
|
---|
| 1064 | if( mbedtls_padlock_xcryptcbc( ctx, mode, length, iv, input, output ) == 0 )
|
---|
| 1065 | return( 0 );
|
---|
| 1066 |
|
---|
| 1067 | // If padlock data misaligned, we just fall back to
|
---|
| 1068 | // unaccelerated mode
|
---|
| 1069 | //
|
---|
| 1070 | }
|
---|
| 1071 | #endif
|
---|
| 1072 |
|
---|
| 1073 | if( mode == MBEDTLS_AES_DECRYPT )
|
---|
| 1074 | {
|
---|
| 1075 | while( length > 0 )
|
---|
| 1076 | {
|
---|
| 1077 | memcpy( temp, input, 16 );
|
---|
| 1078 | mbedtls_aes_crypt_ecb( ctx, mode, input, output );
|
---|
| 1079 |
|
---|
| 1080 | for( i = 0; i < 16; i++ )
|
---|
| 1081 | output[i] = (unsigned char)( output[i] ^ iv[i] );
|
---|
| 1082 |
|
---|
| 1083 | memcpy( iv, temp, 16 );
|
---|
| 1084 |
|
---|
| 1085 | input += 16;
|
---|
| 1086 | output += 16;
|
---|
| 1087 | length -= 16;
|
---|
| 1088 | }
|
---|
| 1089 | }
|
---|
| 1090 | else
|
---|
| 1091 | {
|
---|
| 1092 | while( length > 0 )
|
---|
| 1093 | {
|
---|
| 1094 | for( i = 0; i < 16; i++ )
|
---|
| 1095 | output[i] = (unsigned char)( input[i] ^ iv[i] );
|
---|
| 1096 |
|
---|
| 1097 | mbedtls_aes_crypt_ecb( ctx, mode, output, output );
|
---|
| 1098 | memcpy( iv, output, 16 );
|
---|
| 1099 |
|
---|
| 1100 | input += 16;
|
---|
| 1101 | output += 16;
|
---|
| 1102 | length -= 16;
|
---|
| 1103 | }
|
---|
| 1104 | }
|
---|
| 1105 |
|
---|
| 1106 | return( 0 );
|
---|
| 1107 | }
|
---|
| 1108 | #endif /* MBEDTLS_CIPHER_MODE_CBC */
|
---|
| 1109 |
|
---|
| 1110 | #if defined(MBEDTLS_CIPHER_MODE_XTS)
|
---|
| 1111 |
|
---|
| 1112 | /* Endianess with 64 bits values */
|
---|
| 1113 | #ifndef GET_UINT64_LE
|
---|
| 1114 | #define GET_UINT64_LE(n,b,i) \
|
---|
| 1115 | { \
|
---|
| 1116 | (n) = ( (uint64_t) (b)[(i) + 7] << 56 ) \
|
---|
| 1117 | | ( (uint64_t) (b)[(i) + 6] << 48 ) \
|
---|
| 1118 | | ( (uint64_t) (b)[(i) + 5] << 40 ) \
|
---|
| 1119 | | ( (uint64_t) (b)[(i) + 4] << 32 ) \
|
---|
| 1120 | | ( (uint64_t) (b)[(i) + 3] << 24 ) \
|
---|
| 1121 | | ( (uint64_t) (b)[(i) + 2] << 16 ) \
|
---|
| 1122 | | ( (uint64_t) (b)[(i) + 1] << 8 ) \
|
---|
| 1123 | | ( (uint64_t) (b)[(i) ] ); \
|
---|
| 1124 | }
|
---|
| 1125 | #endif
|
---|
| 1126 |
|
---|
| 1127 | #ifndef PUT_UINT64_LE
|
---|
| 1128 | #define PUT_UINT64_LE(n,b,i) \
|
---|
| 1129 | { \
|
---|
| 1130 | (b)[(i) + 7] = (unsigned char) ( (n) >> 56 ); \
|
---|
| 1131 | (b)[(i) + 6] = (unsigned char) ( (n) >> 48 ); \
|
---|
| 1132 | (b)[(i) + 5] = (unsigned char) ( (n) >> 40 ); \
|
---|
| 1133 | (b)[(i) + 4] = (unsigned char) ( (n) >> 32 ); \
|
---|
| 1134 | (b)[(i) + 3] = (unsigned char) ( (n) >> 24 ); \
|
---|
| 1135 | (b)[(i) + 2] = (unsigned char) ( (n) >> 16 ); \
|
---|
| 1136 | (b)[(i) + 1] = (unsigned char) ( (n) >> 8 ); \
|
---|
| 1137 | (b)[(i) ] = (unsigned char) ( (n) ); \
|
---|
| 1138 | }
|
---|
| 1139 | #endif
|
---|
| 1140 |
|
---|
| 1141 | typedef unsigned char mbedtls_be128[16];
|
---|
| 1142 |
|
---|
| 1143 | /*
|
---|
| 1144 | * GF(2^128) multiplication function
|
---|
| 1145 | *
|
---|
| 1146 | * This function multiplies a field element by x in the polynomial field
|
---|
| 1147 | * representation. It uses 64-bit word operations to gain speed but compensates
|
---|
| 1148 | * for machine endianess and hence works correctly on both big and little
|
---|
| 1149 | * endian machines.
|
---|
| 1150 | */
|
---|
| 1151 | static void mbedtls_gf128mul_x_ble( unsigned char r[16],
|
---|
| 1152 | const unsigned char x[16] )
|
---|
| 1153 | {
|
---|
| 1154 | uint64_t a, b, ra, rb;
|
---|
| 1155 |
|
---|
| 1156 | GET_UINT64_LE( a, x, 0 );
|
---|
| 1157 | GET_UINT64_LE( b, x, 8 );
|
---|
| 1158 |
|
---|
| 1159 | ra = ( a << 1 ) ^ 0x0087 >> ( 8 - ( ( b >> 63 ) << 3 ) );
|
---|
| 1160 | rb = ( a >> 63 ) | ( b << 1 );
|
---|
| 1161 |
|
---|
| 1162 | PUT_UINT64_LE( ra, r, 0 );
|
---|
| 1163 | PUT_UINT64_LE( rb, r, 8 );
|
---|
| 1164 | }
|
---|
| 1165 |
|
---|
| 1166 | /*
|
---|
| 1167 | * AES-XTS buffer encryption/decryption
|
---|
| 1168 | */
|
---|
| 1169 | int mbedtls_aes_crypt_xts( mbedtls_aes_xts_context *ctx,
|
---|
| 1170 | int mode,
|
---|
| 1171 | size_t length,
|
---|
| 1172 | const unsigned char data_unit[16],
|
---|
| 1173 | const unsigned char *input,
|
---|
| 1174 | unsigned char *output )
|
---|
| 1175 | {
|
---|
| 1176 | int ret;
|
---|
| 1177 | size_t blocks = length / 16;
|
---|
| 1178 | size_t leftover = length % 16;
|
---|
| 1179 | unsigned char tweak[16];
|
---|
| 1180 | unsigned char prev_tweak[16];
|
---|
| 1181 | unsigned char tmp[16];
|
---|
| 1182 |
|
---|
| 1183 | AES_VALIDATE_RET( ctx != NULL );
|
---|
| 1184 | AES_VALIDATE_RET( mode == MBEDTLS_AES_ENCRYPT ||
|
---|
| 1185 | mode == MBEDTLS_AES_DECRYPT );
|
---|
| 1186 | AES_VALIDATE_RET( data_unit != NULL );
|
---|
| 1187 | AES_VALIDATE_RET( input != NULL );
|
---|
| 1188 | AES_VALIDATE_RET( output != NULL );
|
---|
| 1189 |
|
---|
| 1190 | /* Data units must be at least 16 bytes long. */
|
---|
| 1191 | if( length < 16 )
|
---|
| 1192 | return MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH;
|
---|
| 1193 |
|
---|
| 1194 | /* NIST SP 800-38E disallows data units larger than 2**20 blocks. */
|
---|
| 1195 | if( length > ( 1 << 20 ) * 16 )
|
---|
| 1196 | return MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH;
|
---|
| 1197 |
|
---|
| 1198 | /* Compute the tweak. */
|
---|
| 1199 | ret = mbedtls_aes_crypt_ecb( &ctx->tweak, MBEDTLS_AES_ENCRYPT,
|
---|
| 1200 | data_unit, tweak );
|
---|
| 1201 | if( ret != 0 )
|
---|
| 1202 | return( ret );
|
---|
| 1203 |
|
---|
| 1204 | while( blocks-- )
|
---|
| 1205 | {
|
---|
| 1206 | size_t i;
|
---|
| 1207 |
|
---|
| 1208 | if( leftover && ( mode == MBEDTLS_AES_DECRYPT ) && blocks == 0 )
|
---|
| 1209 | {
|
---|
| 1210 | /* We are on the last block in a decrypt operation that has
|
---|
| 1211 | * leftover bytes, so we need to use the next tweak for this block,
|
---|
| 1212 | * and this tweak for the lefover bytes. Save the current tweak for
|
---|
| 1213 | * the leftovers and then update the current tweak for use on this,
|
---|
| 1214 | * the last full block. */
|
---|
| 1215 | memcpy( prev_tweak, tweak, sizeof( tweak ) );
|
---|
| 1216 | mbedtls_gf128mul_x_ble( tweak, tweak );
|
---|
| 1217 | }
|
---|
| 1218 |
|
---|
| 1219 | for( i = 0; i < 16; i++ )
|
---|
| 1220 | tmp[i] = input[i] ^ tweak[i];
|
---|
| 1221 |
|
---|
| 1222 | ret = mbedtls_aes_crypt_ecb( &ctx->crypt, mode, tmp, tmp );
|
---|
| 1223 | if( ret != 0 )
|
---|
| 1224 | return( ret );
|
---|
| 1225 |
|
---|
| 1226 | for( i = 0; i < 16; i++ )
|
---|
| 1227 | output[i] = tmp[i] ^ tweak[i];
|
---|
| 1228 |
|
---|
| 1229 | /* Update the tweak for the next block. */
|
---|
| 1230 | mbedtls_gf128mul_x_ble( tweak, tweak );
|
---|
| 1231 |
|
---|
| 1232 | output += 16;
|
---|
| 1233 | input += 16;
|
---|
| 1234 | }
|
---|
| 1235 |
|
---|
| 1236 | if( leftover )
|
---|
| 1237 | {
|
---|
| 1238 | /* If we are on the leftover bytes in a decrypt operation, we need to
|
---|
| 1239 | * use the previous tweak for these bytes (as saved in prev_tweak). */
|
---|
| 1240 | unsigned char *t = mode == MBEDTLS_AES_DECRYPT ? prev_tweak : tweak;
|
---|
| 1241 |
|
---|
| 1242 | /* We are now on the final part of the data unit, which doesn't divide
|
---|
| 1243 | * evenly by 16. It's time for ciphertext stealing. */
|
---|
| 1244 | size_t i;
|
---|
| 1245 | unsigned char *prev_output = output - 16;
|
---|
| 1246 |
|
---|
| 1247 | /* Copy ciphertext bytes from the previous block to our output for each
|
---|
| 1248 | * byte of cyphertext we won't steal. At the same time, copy the
|
---|
| 1249 | * remainder of the input for this final round (since the loop bounds
|
---|
| 1250 | * are the same). */
|
---|
| 1251 | for( i = 0; i < leftover; i++ )
|
---|
| 1252 | {
|
---|
| 1253 | output[i] = prev_output[i];
|
---|
| 1254 | tmp[i] = input[i] ^ t[i];
|
---|
| 1255 | }
|
---|
| 1256 |
|
---|
| 1257 | /* Copy ciphertext bytes from the previous block for input in this
|
---|
| 1258 | * round. */
|
---|
| 1259 | for( ; i < 16; i++ )
|
---|
| 1260 | tmp[i] = prev_output[i] ^ t[i];
|
---|
| 1261 |
|
---|
| 1262 | ret = mbedtls_aes_crypt_ecb( &ctx->crypt, mode, tmp, tmp );
|
---|
| 1263 | if( ret != 0 )
|
---|
| 1264 | return ret;
|
---|
| 1265 |
|
---|
| 1266 | /* Write the result back to the previous block, overriding the previous
|
---|
| 1267 | * output we copied. */
|
---|
| 1268 | for( i = 0; i < 16; i++ )
|
---|
| 1269 | prev_output[i] = tmp[i] ^ t[i];
|
---|
| 1270 | }
|
---|
| 1271 |
|
---|
| 1272 | return( 0 );
|
---|
| 1273 | }
|
---|
| 1274 | #endif /* MBEDTLS_CIPHER_MODE_XTS */
|
---|
| 1275 |
|
---|
| 1276 | #if defined(MBEDTLS_CIPHER_MODE_CFB)
|
---|
| 1277 | /*
|
---|
| 1278 | * AES-CFB128 buffer encryption/decryption
|
---|
| 1279 | */
|
---|
| 1280 | int mbedtls_aes_crypt_cfb128( mbedtls_aes_context *ctx,
|
---|
| 1281 | int mode,
|
---|
| 1282 | size_t length,
|
---|
| 1283 | size_t *iv_off,
|
---|
| 1284 | unsigned char iv[16],
|
---|
| 1285 | const unsigned char *input,
|
---|
| 1286 | unsigned char *output )
|
---|
| 1287 | {
|
---|
| 1288 | int c;
|
---|
| 1289 | size_t n;
|
---|
| 1290 |
|
---|
| 1291 | AES_VALIDATE_RET( ctx != NULL );
|
---|
| 1292 | AES_VALIDATE_RET( mode == MBEDTLS_AES_ENCRYPT ||
|
---|
| 1293 | mode == MBEDTLS_AES_DECRYPT );
|
---|
| 1294 | AES_VALIDATE_RET( iv_off != NULL );
|
---|
| 1295 | AES_VALIDATE_RET( iv != NULL );
|
---|
| 1296 | AES_VALIDATE_RET( input != NULL );
|
---|
| 1297 | AES_VALIDATE_RET( output != NULL );
|
---|
| 1298 |
|
---|
| 1299 | n = *iv_off;
|
---|
| 1300 |
|
---|
| 1301 | if( n > 15 )
|
---|
| 1302 | return( MBEDTLS_ERR_AES_BAD_INPUT_DATA );
|
---|
| 1303 |
|
---|
| 1304 | if( mode == MBEDTLS_AES_DECRYPT )
|
---|
| 1305 | {
|
---|
| 1306 | while( length-- )
|
---|
| 1307 | {
|
---|
| 1308 | if( n == 0 )
|
---|
| 1309 | mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, iv, iv );
|
---|
| 1310 |
|
---|
| 1311 | c = *input++;
|
---|
| 1312 | *output++ = (unsigned char)( c ^ iv[n] );
|
---|
| 1313 | iv[n] = (unsigned char) c;
|
---|
| 1314 |
|
---|
| 1315 | n = ( n + 1 ) & 0x0F;
|
---|
| 1316 | }
|
---|
| 1317 | }
|
---|
| 1318 | else
|
---|
| 1319 | {
|
---|
| 1320 | while( length-- )
|
---|
| 1321 | {
|
---|
| 1322 | if( n == 0 )
|
---|
| 1323 | mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, iv, iv );
|
---|
| 1324 |
|
---|
| 1325 | iv[n] = *output++ = (unsigned char)( iv[n] ^ *input++ );
|
---|
| 1326 |
|
---|
| 1327 | n = ( n + 1 ) & 0x0F;
|
---|
| 1328 | }
|
---|
| 1329 | }
|
---|
| 1330 |
|
---|
| 1331 | *iv_off = n;
|
---|
| 1332 |
|
---|
| 1333 | return( 0 );
|
---|
| 1334 | }
|
---|
| 1335 |
|
---|
| 1336 | /*
|
---|
| 1337 | * AES-CFB8 buffer encryption/decryption
|
---|
| 1338 | */
|
---|
| 1339 | int mbedtls_aes_crypt_cfb8( mbedtls_aes_context *ctx,
|
---|
| 1340 | int mode,
|
---|
| 1341 | size_t length,
|
---|
| 1342 | unsigned char iv[16],
|
---|
| 1343 | const unsigned char *input,
|
---|
| 1344 | unsigned char *output )
|
---|
| 1345 | {
|
---|
| 1346 | unsigned char c;
|
---|
| 1347 | unsigned char ov[17];
|
---|
| 1348 |
|
---|
| 1349 | AES_VALIDATE_RET( ctx != NULL );
|
---|
| 1350 | AES_VALIDATE_RET( mode == MBEDTLS_AES_ENCRYPT ||
|
---|
| 1351 | mode == MBEDTLS_AES_DECRYPT );
|
---|
| 1352 | AES_VALIDATE_RET( iv != NULL );
|
---|
| 1353 | AES_VALIDATE_RET( input != NULL );
|
---|
| 1354 | AES_VALIDATE_RET( output != NULL );
|
---|
| 1355 | while( length-- )
|
---|
| 1356 | {
|
---|
| 1357 | memcpy( ov, iv, 16 );
|
---|
| 1358 | mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, iv, iv );
|
---|
| 1359 |
|
---|
| 1360 | if( mode == MBEDTLS_AES_DECRYPT )
|
---|
| 1361 | ov[16] = *input;
|
---|
| 1362 |
|
---|
| 1363 | c = *output++ = (unsigned char)( iv[0] ^ *input++ );
|
---|
| 1364 |
|
---|
| 1365 | if( mode == MBEDTLS_AES_ENCRYPT )
|
---|
| 1366 | ov[16] = c;
|
---|
| 1367 |
|
---|
| 1368 | memcpy( iv, ov + 1, 16 );
|
---|
| 1369 | }
|
---|
| 1370 |
|
---|
| 1371 | return( 0 );
|
---|
| 1372 | }
|
---|
| 1373 | #endif /* MBEDTLS_CIPHER_MODE_CFB */
|
---|
| 1374 |
|
---|
| 1375 | #if defined(MBEDTLS_CIPHER_MODE_OFB)
|
---|
| 1376 | /*
|
---|
| 1377 | * AES-OFB (Output Feedback Mode) buffer encryption/decryption
|
---|
| 1378 | */
|
---|
| 1379 | int mbedtls_aes_crypt_ofb( mbedtls_aes_context *ctx,
|
---|
| 1380 | size_t length,
|
---|
| 1381 | size_t *iv_off,
|
---|
| 1382 | unsigned char iv[16],
|
---|
| 1383 | const unsigned char *input,
|
---|
| 1384 | unsigned char *output )
|
---|
| 1385 | {
|
---|
| 1386 | int ret = 0;
|
---|
| 1387 | size_t n;
|
---|
| 1388 |
|
---|
| 1389 | AES_VALIDATE_RET( ctx != NULL );
|
---|
| 1390 | AES_VALIDATE_RET( iv_off != NULL );
|
---|
| 1391 | AES_VALIDATE_RET( iv != NULL );
|
---|
| 1392 | AES_VALIDATE_RET( input != NULL );
|
---|
| 1393 | AES_VALIDATE_RET( output != NULL );
|
---|
| 1394 |
|
---|
| 1395 | n = *iv_off;
|
---|
| 1396 |
|
---|
| 1397 | if( n > 15 )
|
---|
| 1398 | return( MBEDTLS_ERR_AES_BAD_INPUT_DATA );
|
---|
| 1399 |
|
---|
| 1400 | while( length-- )
|
---|
| 1401 | {
|
---|
| 1402 | if( n == 0 )
|
---|
| 1403 | {
|
---|
| 1404 | ret = mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, iv, iv );
|
---|
| 1405 | if( ret != 0 )
|
---|
| 1406 | goto exit;
|
---|
| 1407 | }
|
---|
| 1408 | *output++ = *input++ ^ iv[n];
|
---|
| 1409 |
|
---|
| 1410 | n = ( n + 1 ) & 0x0F;
|
---|
| 1411 | }
|
---|
| 1412 |
|
---|
| 1413 | *iv_off = n;
|
---|
| 1414 |
|
---|
| 1415 | exit:
|
---|
| 1416 | return( ret );
|
---|
| 1417 | }
|
---|
| 1418 | #endif /* MBEDTLS_CIPHER_MODE_OFB */
|
---|
| 1419 |
|
---|
| 1420 | #if defined(MBEDTLS_CIPHER_MODE_CTR)
|
---|
| 1421 | /*
|
---|
| 1422 | * AES-CTR buffer encryption/decryption
|
---|
| 1423 | */
|
---|
| 1424 | int mbedtls_aes_crypt_ctr( mbedtls_aes_context *ctx,
|
---|
| 1425 | size_t length,
|
---|
| 1426 | size_t *nc_off,
|
---|
| 1427 | unsigned char nonce_counter[16],
|
---|
| 1428 | unsigned char stream_block[16],
|
---|
| 1429 | const unsigned char *input,
|
---|
| 1430 | unsigned char *output )
|
---|
| 1431 | {
|
---|
| 1432 | int c, i;
|
---|
| 1433 | size_t n;
|
---|
| 1434 |
|
---|
| 1435 | AES_VALIDATE_RET( ctx != NULL );
|
---|
| 1436 | AES_VALIDATE_RET( nc_off != NULL );
|
---|
| 1437 | AES_VALIDATE_RET( nonce_counter != NULL );
|
---|
| 1438 | AES_VALIDATE_RET( stream_block != NULL );
|
---|
| 1439 | AES_VALIDATE_RET( input != NULL );
|
---|
| 1440 | AES_VALIDATE_RET( output != NULL );
|
---|
| 1441 |
|
---|
| 1442 | n = *nc_off;
|
---|
| 1443 |
|
---|
| 1444 | if ( n > 0x0F )
|
---|
| 1445 | return( MBEDTLS_ERR_AES_BAD_INPUT_DATA );
|
---|
| 1446 |
|
---|
| 1447 | while( length-- )
|
---|
| 1448 | {
|
---|
| 1449 | if( n == 0 ) {
|
---|
| 1450 | mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, nonce_counter, stream_block );
|
---|
| 1451 |
|
---|
| 1452 | for( i = 16; i > 0; i-- )
|
---|
| 1453 | if( ++nonce_counter[i - 1] != 0 )
|
---|
| 1454 | break;
|
---|
| 1455 | }
|
---|
| 1456 | c = *input++;
|
---|
| 1457 | *output++ = (unsigned char)( c ^ stream_block[n] );
|
---|
| 1458 |
|
---|
| 1459 | n = ( n + 1 ) & 0x0F;
|
---|
| 1460 | }
|
---|
| 1461 |
|
---|
| 1462 | *nc_off = n;
|
---|
| 1463 |
|
---|
| 1464 | return( 0 );
|
---|
| 1465 | }
|
---|
| 1466 | #endif /* MBEDTLS_CIPHER_MODE_CTR */
|
---|
| 1467 |
|
---|
| 1468 | #endif /* !MBEDTLS_AES_ALT */
|
---|
| 1469 |
|
---|
| 1470 | #if defined(MBEDTLS_SELF_TEST)
|
---|
| 1471 | /*
|
---|
| 1472 | * AES test vectors from:
|
---|
| 1473 | *
|
---|
| 1474 | * http://csrc.nist.gov/archive/aes/rijndael/rijndael-vals.zip
|
---|
| 1475 | */
|
---|
| 1476 | static const unsigned char aes_test_ecb_dec[3][16] =
|
---|
| 1477 | {
|
---|
| 1478 | { 0x44, 0x41, 0x6A, 0xC2, 0xD1, 0xF5, 0x3C, 0x58,
|
---|
| 1479 | 0x33, 0x03, 0x91, 0x7E, 0x6B, 0xE9, 0xEB, 0xE0 },
|
---|
| 1480 | { 0x48, 0xE3, 0x1E, 0x9E, 0x25, 0x67, 0x18, 0xF2,
|
---|
| 1481 | 0x92, 0x29, 0x31, 0x9C, 0x19, 0xF1, 0x5B, 0xA4 },
|
---|
| 1482 | { 0x05, 0x8C, 0xCF, 0xFD, 0xBB, 0xCB, 0x38, 0x2D,
|
---|
| 1483 | 0x1F, 0x6F, 0x56, 0x58, 0x5D, 0x8A, 0x4A, 0xDE }
|
---|
| 1484 | };
|
---|
| 1485 |
|
---|
| 1486 | static const unsigned char aes_test_ecb_enc[3][16] =
|
---|
| 1487 | {
|
---|
| 1488 | { 0xC3, 0x4C, 0x05, 0x2C, 0xC0, 0xDA, 0x8D, 0x73,
|
---|
| 1489 | 0x45, 0x1A, 0xFE, 0x5F, 0x03, 0xBE, 0x29, 0x7F },
|
---|
| 1490 | { 0xF3, 0xF6, 0x75, 0x2A, 0xE8, 0xD7, 0x83, 0x11,
|
---|
| 1491 | 0x38, 0xF0, 0x41, 0x56, 0x06, 0x31, 0xB1, 0x14 },
|
---|
| 1492 | { 0x8B, 0x79, 0xEE, 0xCC, 0x93, 0xA0, 0xEE, 0x5D,
|
---|
| 1493 | 0xFF, 0x30, 0xB4, 0xEA, 0x21, 0x63, 0x6D, 0xA4 }
|
---|
| 1494 | };
|
---|
| 1495 |
|
---|
| 1496 | #if defined(MBEDTLS_CIPHER_MODE_CBC)
|
---|
| 1497 | static const unsigned char aes_test_cbc_dec[3][16] =
|
---|
| 1498 | {
|
---|
| 1499 | { 0xFA, 0xCA, 0x37, 0xE0, 0xB0, 0xC8, 0x53, 0x73,
|
---|
| 1500 | 0xDF, 0x70, 0x6E, 0x73, 0xF7, 0xC9, 0xAF, 0x86 },
|
---|
| 1501 | { 0x5D, 0xF6, 0x78, 0xDD, 0x17, 0xBA, 0x4E, 0x75,
|
---|
| 1502 | 0xB6, 0x17, 0x68, 0xC6, 0xAD, 0xEF, 0x7C, 0x7B },
|
---|
| 1503 | { 0x48, 0x04, 0xE1, 0x81, 0x8F, 0xE6, 0x29, 0x75,
|
---|
| 1504 | 0x19, 0xA3, 0xE8, 0x8C, 0x57, 0x31, 0x04, 0x13 }
|
---|
| 1505 | };
|
---|
| 1506 |
|
---|
| 1507 | static const unsigned char aes_test_cbc_enc[3][16] =
|
---|
| 1508 | {
|
---|
| 1509 | { 0x8A, 0x05, 0xFC, 0x5E, 0x09, 0x5A, 0xF4, 0x84,
|
---|
| 1510 | 0x8A, 0x08, 0xD3, 0x28, 0xD3, 0x68, 0x8E, 0x3D },
|
---|
| 1511 | { 0x7B, 0xD9, 0x66, 0xD5, 0x3A, 0xD8, 0xC1, 0xBB,
|
---|
| 1512 | 0x85, 0xD2, 0xAD, 0xFA, 0xE8, 0x7B, 0xB1, 0x04 },
|
---|
| 1513 | { 0xFE, 0x3C, 0x53, 0x65, 0x3E, 0x2F, 0x45, 0xB5,
|
---|
| 1514 | 0x6F, 0xCD, 0x88, 0xB2, 0xCC, 0x89, 0x8F, 0xF0 }
|
---|
| 1515 | };
|
---|
| 1516 | #endif /* MBEDTLS_CIPHER_MODE_CBC */
|
---|
| 1517 |
|
---|
| 1518 | #if defined(MBEDTLS_CIPHER_MODE_CFB)
|
---|
| 1519 | /*
|
---|
| 1520 | * AES-CFB128 test vectors from:
|
---|
| 1521 | *
|
---|
| 1522 | * http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
|
---|
| 1523 | */
|
---|
| 1524 | static const unsigned char aes_test_cfb128_key[3][32] =
|
---|
| 1525 | {
|
---|
| 1526 | { 0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6,
|
---|
| 1527 | 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C },
|
---|
| 1528 | { 0x8E, 0x73, 0xB0, 0xF7, 0xDA, 0x0E, 0x64, 0x52,
|
---|
| 1529 | 0xC8, 0x10, 0xF3, 0x2B, 0x80, 0x90, 0x79, 0xE5,
|
---|
| 1530 | 0x62, 0xF8, 0xEA, 0xD2, 0x52, 0x2C, 0x6B, 0x7B },
|
---|
| 1531 | { 0x60, 0x3D, 0xEB, 0x10, 0x15, 0xCA, 0x71, 0xBE,
|
---|
| 1532 | 0x2B, 0x73, 0xAE, 0xF0, 0x85, 0x7D, 0x77, 0x81,
|
---|
| 1533 | 0x1F, 0x35, 0x2C, 0x07, 0x3B, 0x61, 0x08, 0xD7,
|
---|
| 1534 | 0x2D, 0x98, 0x10, 0xA3, 0x09, 0x14, 0xDF, 0xF4 }
|
---|
| 1535 | };
|
---|
| 1536 |
|
---|
| 1537 | static const unsigned char aes_test_cfb128_iv[16] =
|
---|
| 1538 | {
|
---|
| 1539 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
|
---|
| 1540 | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F
|
---|
| 1541 | };
|
---|
| 1542 |
|
---|
| 1543 | static const unsigned char aes_test_cfb128_pt[64] =
|
---|
| 1544 | {
|
---|
| 1545 | 0x6B, 0xC1, 0xBE, 0xE2, 0x2E, 0x40, 0x9F, 0x96,
|
---|
| 1546 | 0xE9, 0x3D, 0x7E, 0x11, 0x73, 0x93, 0x17, 0x2A,
|
---|
| 1547 | 0xAE, 0x2D, 0x8A, 0x57, 0x1E, 0x03, 0xAC, 0x9C,
|
---|
| 1548 | 0x9E, 0xB7, 0x6F, 0xAC, 0x45, 0xAF, 0x8E, 0x51,
|
---|
| 1549 | 0x30, 0xC8, 0x1C, 0x46, 0xA3, 0x5C, 0xE4, 0x11,
|
---|
| 1550 | 0xE5, 0xFB, 0xC1, 0x19, 0x1A, 0x0A, 0x52, 0xEF,
|
---|
| 1551 | 0xF6, 0x9F, 0x24, 0x45, 0xDF, 0x4F, 0x9B, 0x17,
|
---|
| 1552 | 0xAD, 0x2B, 0x41, 0x7B, 0xE6, 0x6C, 0x37, 0x10
|
---|
| 1553 | };
|
---|
| 1554 |
|
---|
| 1555 | static const unsigned char aes_test_cfb128_ct[3][64] =
|
---|
| 1556 | {
|
---|
| 1557 | { 0x3B, 0x3F, 0xD9, 0x2E, 0xB7, 0x2D, 0xAD, 0x20,
|
---|
| 1558 | 0x33, 0x34, 0x49, 0xF8, 0xE8, 0x3C, 0xFB, 0x4A,
|
---|
| 1559 | 0xC8, 0xA6, 0x45, 0x37, 0xA0, 0xB3, 0xA9, 0x3F,
|
---|
| 1560 | 0xCD, 0xE3, 0xCD, 0xAD, 0x9F, 0x1C, 0xE5, 0x8B,
|
---|
| 1561 | 0x26, 0x75, 0x1F, 0x67, 0xA3, 0xCB, 0xB1, 0x40,
|
---|
| 1562 | 0xB1, 0x80, 0x8C, 0xF1, 0x87, 0xA4, 0xF4, 0xDF,
|
---|
| 1563 | 0xC0, 0x4B, 0x05, 0x35, 0x7C, 0x5D, 0x1C, 0x0E,
|
---|
| 1564 | 0xEA, 0xC4, 0xC6, 0x6F, 0x9F, 0xF7, 0xF2, 0xE6 },
|
---|
| 1565 | { 0xCD, 0xC8, 0x0D, 0x6F, 0xDD, 0xF1, 0x8C, 0xAB,
|
---|
| 1566 | 0x34, 0xC2, 0x59, 0x09, 0xC9, 0x9A, 0x41, 0x74,
|
---|
| 1567 | 0x67, 0xCE, 0x7F, 0x7F, 0x81, 0x17, 0x36, 0x21,
|
---|
| 1568 | 0x96, 0x1A, 0x2B, 0x70, 0x17, 0x1D, 0x3D, 0x7A,
|
---|
| 1569 | 0x2E, 0x1E, 0x8A, 0x1D, 0xD5, 0x9B, 0x88, 0xB1,
|
---|
| 1570 | 0xC8, 0xE6, 0x0F, 0xED, 0x1E, 0xFA, 0xC4, 0xC9,
|
---|
| 1571 | 0xC0, 0x5F, 0x9F, 0x9C, 0xA9, 0x83, 0x4F, 0xA0,
|
---|
| 1572 | 0x42, 0xAE, 0x8F, 0xBA, 0x58, 0x4B, 0x09, 0xFF },
|
---|
| 1573 | { 0xDC, 0x7E, 0x84, 0xBF, 0xDA, 0x79, 0x16, 0x4B,
|
---|
| 1574 | 0x7E, 0xCD, 0x84, 0x86, 0x98, 0x5D, 0x38, 0x60,
|
---|
| 1575 | 0x39, 0xFF, 0xED, 0x14, 0x3B, 0x28, 0xB1, 0xC8,
|
---|
| 1576 | 0x32, 0x11, 0x3C, 0x63, 0x31, 0xE5, 0x40, 0x7B,
|
---|
| 1577 | 0xDF, 0x10, 0x13, 0x24, 0x15, 0xE5, 0x4B, 0x92,
|
---|
| 1578 | 0xA1, 0x3E, 0xD0, 0xA8, 0x26, 0x7A, 0xE2, 0xF9,
|
---|
| 1579 | 0x75, 0xA3, 0x85, 0x74, 0x1A, 0xB9, 0xCE, 0xF8,
|
---|
| 1580 | 0x20, 0x31, 0x62, 0x3D, 0x55, 0xB1, 0xE4, 0x71 }
|
---|
| 1581 | };
|
---|
| 1582 | #endif /* MBEDTLS_CIPHER_MODE_CFB */
|
---|
| 1583 |
|
---|
| 1584 | #if defined(MBEDTLS_CIPHER_MODE_OFB)
|
---|
| 1585 | /*
|
---|
| 1586 | * AES-OFB test vectors from:
|
---|
| 1587 | *
|
---|
| 1588 | * https://csrc.nist.gov/publications/detail/sp/800-38a/final
|
---|
| 1589 | */
|
---|
| 1590 | static const unsigned char aes_test_ofb_key[3][32] =
|
---|
| 1591 | {
|
---|
| 1592 | { 0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6,
|
---|
| 1593 | 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C },
|
---|
| 1594 | { 0x8E, 0x73, 0xB0, 0xF7, 0xDA, 0x0E, 0x64, 0x52,
|
---|
| 1595 | 0xC8, 0x10, 0xF3, 0x2B, 0x80, 0x90, 0x79, 0xE5,
|
---|
| 1596 | 0x62, 0xF8, 0xEA, 0xD2, 0x52, 0x2C, 0x6B, 0x7B },
|
---|
| 1597 | { 0x60, 0x3D, 0xEB, 0x10, 0x15, 0xCA, 0x71, 0xBE,
|
---|
| 1598 | 0x2B, 0x73, 0xAE, 0xF0, 0x85, 0x7D, 0x77, 0x81,
|
---|
| 1599 | 0x1F, 0x35, 0x2C, 0x07, 0x3B, 0x61, 0x08, 0xD7,
|
---|
| 1600 | 0x2D, 0x98, 0x10, 0xA3, 0x09, 0x14, 0xDF, 0xF4 }
|
---|
| 1601 | };
|
---|
| 1602 |
|
---|
| 1603 | static const unsigned char aes_test_ofb_iv[16] =
|
---|
| 1604 | {
|
---|
| 1605 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
|
---|
| 1606 | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F
|
---|
| 1607 | };
|
---|
| 1608 |
|
---|
| 1609 | static const unsigned char aes_test_ofb_pt[64] =
|
---|
| 1610 | {
|
---|
| 1611 | 0x6B, 0xC1, 0xBE, 0xE2, 0x2E, 0x40, 0x9F, 0x96,
|
---|
| 1612 | 0xE9, 0x3D, 0x7E, 0x11, 0x73, 0x93, 0x17, 0x2A,
|
---|
| 1613 | 0xAE, 0x2D, 0x8A, 0x57, 0x1E, 0x03, 0xAC, 0x9C,
|
---|
| 1614 | 0x9E, 0xB7, 0x6F, 0xAC, 0x45, 0xAF, 0x8E, 0x51,
|
---|
| 1615 | 0x30, 0xC8, 0x1C, 0x46, 0xA3, 0x5C, 0xE4, 0x11,
|
---|
| 1616 | 0xE5, 0xFB, 0xC1, 0x19, 0x1A, 0x0A, 0x52, 0xEF,
|
---|
| 1617 | 0xF6, 0x9F, 0x24, 0x45, 0xDF, 0x4F, 0x9B, 0x17,
|
---|
| 1618 | 0xAD, 0x2B, 0x41, 0x7B, 0xE6, 0x6C, 0x37, 0x10
|
---|
| 1619 | };
|
---|
| 1620 |
|
---|
| 1621 | static const unsigned char aes_test_ofb_ct[3][64] =
|
---|
| 1622 | {
|
---|
| 1623 | { 0x3B, 0x3F, 0xD9, 0x2E, 0xB7, 0x2D, 0xAD, 0x20,
|
---|
| 1624 | 0x33, 0x34, 0x49, 0xF8, 0xE8, 0x3C, 0xFB, 0x4A,
|
---|
| 1625 | 0x77, 0x89, 0x50, 0x8d, 0x16, 0x91, 0x8f, 0x03,
|
---|
| 1626 | 0xf5, 0x3c, 0x52, 0xda, 0xc5, 0x4e, 0xd8, 0x25,
|
---|
| 1627 | 0x97, 0x40, 0x05, 0x1e, 0x9c, 0x5f, 0xec, 0xf6,
|
---|
| 1628 | 0x43, 0x44, 0xf7, 0xa8, 0x22, 0x60, 0xed, 0xcc,
|
---|
| 1629 | 0x30, 0x4c, 0x65, 0x28, 0xf6, 0x59, 0xc7, 0x78,
|
---|
| 1630 | 0x66, 0xa5, 0x10, 0xd9, 0xc1, 0xd6, 0xae, 0x5e },
|
---|
| 1631 | { 0xCD, 0xC8, 0x0D, 0x6F, 0xDD, 0xF1, 0x8C, 0xAB,
|
---|
| 1632 | 0x34, 0xC2, 0x59, 0x09, 0xC9, 0x9A, 0x41, 0x74,
|
---|
| 1633 | 0xfc, 0xc2, 0x8b, 0x8d, 0x4c, 0x63, 0x83, 0x7c,
|
---|
| 1634 | 0x09, 0xe8, 0x17, 0x00, 0xc1, 0x10, 0x04, 0x01,
|
---|
| 1635 | 0x8d, 0x9a, 0x9a, 0xea, 0xc0, 0xf6, 0x59, 0x6f,
|
---|
| 1636 | 0x55, 0x9c, 0x6d, 0x4d, 0xaf, 0x59, 0xa5, 0xf2,
|
---|
| 1637 | 0x6d, 0x9f, 0x20, 0x08, 0x57, 0xca, 0x6c, 0x3e,
|
---|
| 1638 | 0x9c, 0xac, 0x52, 0x4b, 0xd9, 0xac, 0xc9, 0x2a },
|
---|
| 1639 | { 0xDC, 0x7E, 0x84, 0xBF, 0xDA, 0x79, 0x16, 0x4B,
|
---|
| 1640 | 0x7E, 0xCD, 0x84, 0x86, 0x98, 0x5D, 0x38, 0x60,
|
---|
| 1641 | 0x4f, 0xeb, 0xdc, 0x67, 0x40, 0xd2, 0x0b, 0x3a,
|
---|
| 1642 | 0xc8, 0x8f, 0x6a, 0xd8, 0x2a, 0x4f, 0xb0, 0x8d,
|
---|
| 1643 | 0x71, 0xab, 0x47, 0xa0, 0x86, 0xe8, 0x6e, 0xed,
|
---|
| 1644 | 0xf3, 0x9d, 0x1c, 0x5b, 0xba, 0x97, 0xc4, 0x08,
|
---|
| 1645 | 0x01, 0x26, 0x14, 0x1d, 0x67, 0xf3, 0x7b, 0xe8,
|
---|
| 1646 | 0x53, 0x8f, 0x5a, 0x8b, 0xe7, 0x40, 0xe4, 0x84 }
|
---|
| 1647 | };
|
---|
| 1648 | #endif /* MBEDTLS_CIPHER_MODE_OFB */
|
---|
| 1649 |
|
---|
| 1650 | #if defined(MBEDTLS_CIPHER_MODE_CTR)
|
---|
| 1651 | /*
|
---|
| 1652 | * AES-CTR test vectors from:
|
---|
| 1653 | *
|
---|
| 1654 | * http://www.faqs.org/rfcs/rfc3686.html
|
---|
| 1655 | */
|
---|
| 1656 |
|
---|
| 1657 | static const unsigned char aes_test_ctr_key[3][16] =
|
---|
| 1658 | {
|
---|
| 1659 | { 0xAE, 0x68, 0x52, 0xF8, 0x12, 0x10, 0x67, 0xCC,
|
---|
| 1660 | 0x4B, 0xF7, 0xA5, 0x76, 0x55, 0x77, 0xF3, 0x9E },
|
---|
| 1661 | { 0x7E, 0x24, 0x06, 0x78, 0x17, 0xFA, 0xE0, 0xD7,
|
---|
| 1662 | 0x43, 0xD6, 0xCE, 0x1F, 0x32, 0x53, 0x91, 0x63 },
|
---|
| 1663 | { 0x76, 0x91, 0xBE, 0x03, 0x5E, 0x50, 0x20, 0xA8,
|
---|
| 1664 | 0xAC, 0x6E, 0x61, 0x85, 0x29, 0xF9, 0xA0, 0xDC }
|
---|
| 1665 | };
|
---|
| 1666 |
|
---|
| 1667 | static const unsigned char aes_test_ctr_nonce_counter[3][16] =
|
---|
| 1668 | {
|
---|
| 1669 | { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00,
|
---|
| 1670 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
|
---|
| 1671 | { 0x00, 0x6C, 0xB6, 0xDB, 0xC0, 0x54, 0x3B, 0x59,
|
---|
| 1672 | 0xDA, 0x48, 0xD9, 0x0B, 0x00, 0x00, 0x00, 0x01 },
|
---|
| 1673 | { 0x00, 0xE0, 0x01, 0x7B, 0x27, 0x77, 0x7F, 0x3F,
|
---|
| 1674 | 0x4A, 0x17, 0x86, 0xF0, 0x00, 0x00, 0x00, 0x01 }
|
---|
| 1675 | };
|
---|
| 1676 |
|
---|
| 1677 | static const unsigned char aes_test_ctr_pt[3][48] =
|
---|
| 1678 | {
|
---|
| 1679 | { 0x53, 0x69, 0x6E, 0x67, 0x6C, 0x65, 0x20, 0x62,
|
---|
| 1680 | 0x6C, 0x6F, 0x63, 0x6B, 0x20, 0x6D, 0x73, 0x67 },
|
---|
| 1681 |
|
---|
| 1682 | { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
|
---|
| 1683 | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
|
---|
| 1684 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
|
---|
| 1685 | 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F },
|
---|
| 1686 |
|
---|
| 1687 | { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
|
---|
| 1688 | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
|
---|
| 1689 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
|
---|
| 1690 | 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
|
---|
| 1691 | 0x20, 0x21, 0x22, 0x23 }
|
---|
| 1692 | };
|
---|
| 1693 |
|
---|
| 1694 | static const unsigned char aes_test_ctr_ct[3][48] =
|
---|
| 1695 | {
|
---|
| 1696 | { 0xE4, 0x09, 0x5D, 0x4F, 0xB7, 0xA7, 0xB3, 0x79,
|
---|
| 1697 | 0x2D, 0x61, 0x75, 0xA3, 0x26, 0x13, 0x11, 0xB8 },
|
---|
| 1698 | { 0x51, 0x04, 0xA1, 0x06, 0x16, 0x8A, 0x72, 0xD9,
|
---|
| 1699 | 0x79, 0x0D, 0x41, 0xEE, 0x8E, 0xDA, 0xD3, 0x88,
|
---|
| 1700 | 0xEB, 0x2E, 0x1E, 0xFC, 0x46, 0xDA, 0x57, 0xC8,
|
---|
| 1701 | 0xFC, 0xE6, 0x30, 0xDF, 0x91, 0x41, 0xBE, 0x28 },
|
---|
| 1702 | { 0xC1, 0xCF, 0x48, 0xA8, 0x9F, 0x2F, 0xFD, 0xD9,
|
---|
| 1703 | 0xCF, 0x46, 0x52, 0xE9, 0xEF, 0xDB, 0x72, 0xD7,
|
---|
| 1704 | 0x45, 0x40, 0xA4, 0x2B, 0xDE, 0x6D, 0x78, 0x36,
|
---|
| 1705 | 0xD5, 0x9A, 0x5C, 0xEA, 0xAE, 0xF3, 0x10, 0x53,
|
---|
| 1706 | 0x25, 0xB2, 0x07, 0x2F }
|
---|
| 1707 | };
|
---|
| 1708 |
|
---|
| 1709 | static const int aes_test_ctr_len[3] =
|
---|
| 1710 | { 16, 32, 36 };
|
---|
| 1711 | #endif /* MBEDTLS_CIPHER_MODE_CTR */
|
---|
| 1712 |
|
---|
| 1713 | #if defined(MBEDTLS_CIPHER_MODE_XTS)
|
---|
| 1714 | /*
|
---|
| 1715 | * AES-XTS test vectors from:
|
---|
| 1716 | *
|
---|
| 1717 | * IEEE P1619/D16 Annex B
|
---|
| 1718 | * https://web.archive.org/web/20150629024421/http://grouper.ieee.org/groups/1619/email/pdf00086.pdf
|
---|
| 1719 | * (Archived from original at http://grouper.ieee.org/groups/1619/email/pdf00086.pdf)
|
---|
| 1720 | */
|
---|
| 1721 | static const unsigned char aes_test_xts_key[][32] =
|
---|
| 1722 | {
|
---|
| 1723 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
---|
| 1724 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
---|
| 1725 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
---|
| 1726 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
|
---|
| 1727 | { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11,
|
---|
| 1728 | 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11,
|
---|
| 1729 | 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
|
---|
| 1730 | 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22 },
|
---|
| 1731 | { 0xff, 0xfe, 0xfd, 0xfc, 0xfb, 0xfa, 0xf9, 0xf8,
|
---|
| 1732 | 0xf7, 0xf6, 0xf5, 0xf4, 0xf3, 0xf2, 0xf1, 0xf0,
|
---|
| 1733 | 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
|
---|
| 1734 | 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22 },
|
---|
| 1735 | };
|
---|
| 1736 |
|
---|
| 1737 | static const unsigned char aes_test_xts_pt32[][32] =
|
---|
| 1738 | {
|
---|
| 1739 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
---|
| 1740 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
---|
| 1741 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
---|
| 1742 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
|
---|
| 1743 | { 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44,
|
---|
| 1744 | 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44,
|
---|
| 1745 | 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44,
|
---|
| 1746 | 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44 },
|
---|
| 1747 | { 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44,
|
---|
| 1748 | 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44,
|
---|
| 1749 | 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44,
|
---|
| 1750 | 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44 },
|
---|
| 1751 | };
|
---|
| 1752 |
|
---|
| 1753 | static const unsigned char aes_test_xts_ct32[][32] =
|
---|
| 1754 | {
|
---|
| 1755 | { 0x91, 0x7c, 0xf6, 0x9e, 0xbd, 0x68, 0xb2, 0xec,
|
---|
| 1756 | 0x9b, 0x9f, 0xe9, 0xa3, 0xea, 0xdd, 0xa6, 0x92,
|
---|
| 1757 | 0xcd, 0x43, 0xd2, 0xf5, 0x95, 0x98, 0xed, 0x85,
|
---|
| 1758 | 0x8c, 0x02, 0xc2, 0x65, 0x2f, 0xbf, 0x92, 0x2e },
|
---|
| 1759 | { 0xc4, 0x54, 0x18, 0x5e, 0x6a, 0x16, 0x93, 0x6e,
|
---|
| 1760 | 0x39, 0x33, 0x40, 0x38, 0xac, 0xef, 0x83, 0x8b,
|
---|
| 1761 | 0xfb, 0x18, 0x6f, 0xff, 0x74, 0x80, 0xad, 0xc4,
|
---|
| 1762 | 0x28, 0x93, 0x82, 0xec, 0xd6, 0xd3, 0x94, 0xf0 },
|
---|
| 1763 | { 0xaf, 0x85, 0x33, 0x6b, 0x59, 0x7a, 0xfc, 0x1a,
|
---|
| 1764 | 0x90, 0x0b, 0x2e, 0xb2, 0x1e, 0xc9, 0x49, 0xd2,
|
---|
| 1765 | 0x92, 0xdf, 0x4c, 0x04, 0x7e, 0x0b, 0x21, 0x53,
|
---|
| 1766 | 0x21, 0x86, 0xa5, 0x97, 0x1a, 0x22, 0x7a, 0x89 },
|
---|
| 1767 | };
|
---|
| 1768 |
|
---|
| 1769 | static const unsigned char aes_test_xts_data_unit[][16] =
|
---|
| 1770 | {
|
---|
| 1771 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
---|
| 1772 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
|
---|
| 1773 | { 0x33, 0x33, 0x33, 0x33, 0x33, 0x00, 0x00, 0x00,
|
---|
| 1774 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
|
---|
| 1775 | { 0x33, 0x33, 0x33, 0x33, 0x33, 0x00, 0x00, 0x00,
|
---|
| 1776 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
|
---|
| 1777 | };
|
---|
| 1778 |
|
---|
| 1779 | #endif /* MBEDTLS_CIPHER_MODE_XTS */
|
---|
| 1780 |
|
---|
| 1781 | /*
|
---|
| 1782 | * Checkup routine
|
---|
| 1783 | */
|
---|
| 1784 | int mbedtls_aes_self_test( int verbose )
|
---|
| 1785 | {
|
---|
| 1786 | int ret = 0, i, j, u, mode;
|
---|
| 1787 | unsigned int keybits;
|
---|
| 1788 | unsigned char key[32];
|
---|
| 1789 | unsigned char buf[64];
|
---|
| 1790 | const unsigned char *aes_tests;
|
---|
| 1791 | #if defined(MBEDTLS_CIPHER_MODE_CBC) || defined(MBEDTLS_CIPHER_MODE_CFB)
|
---|
| 1792 | unsigned char iv[16];
|
---|
| 1793 | #endif
|
---|
| 1794 | #if defined(MBEDTLS_CIPHER_MODE_CBC)
|
---|
| 1795 | unsigned char prv[16];
|
---|
| 1796 | #endif
|
---|
| 1797 | #if defined(MBEDTLS_CIPHER_MODE_CTR) || defined(MBEDTLS_CIPHER_MODE_CFB) || \
|
---|
| 1798 | defined(MBEDTLS_CIPHER_MODE_OFB)
|
---|
| 1799 | size_t offset;
|
---|
| 1800 | #endif
|
---|
| 1801 | #if defined(MBEDTLS_CIPHER_MODE_CTR) || defined(MBEDTLS_CIPHER_MODE_XTS)
|
---|
| 1802 | int len;
|
---|
| 1803 | #endif
|
---|
| 1804 | #if defined(MBEDTLS_CIPHER_MODE_CTR)
|
---|
| 1805 | unsigned char nonce_counter[16];
|
---|
| 1806 | unsigned char stream_block[16];
|
---|
| 1807 | #endif
|
---|
| 1808 | mbedtls_aes_context ctx;
|
---|
| 1809 |
|
---|
| 1810 | memset( key, 0, 32 );
|
---|
| 1811 | mbedtls_aes_init( &ctx );
|
---|
| 1812 |
|
---|
| 1813 | /*
|
---|
| 1814 | * ECB mode
|
---|
| 1815 | */
|
---|
| 1816 | for( i = 0; i < 6; i++ )
|
---|
| 1817 | {
|
---|
| 1818 | u = i >> 1;
|
---|
| 1819 | keybits = 128 + u * 64;
|
---|
| 1820 | mode = i & 1;
|
---|
| 1821 |
|
---|
| 1822 | if( verbose != 0 )
|
---|
| 1823 | mbedtls_printf( " AES-ECB-%3d (%s): ", keybits,
|
---|
| 1824 | ( mode == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" );
|
---|
| 1825 |
|
---|
| 1826 | memset( buf, 0, 16 );
|
---|
| 1827 |
|
---|
| 1828 | if( mode == MBEDTLS_AES_DECRYPT )
|
---|
| 1829 | {
|
---|
| 1830 | ret = mbedtls_aes_setkey_dec( &ctx, key, keybits );
|
---|
| 1831 | aes_tests = aes_test_ecb_dec[u];
|
---|
| 1832 | }
|
---|
| 1833 | else
|
---|
| 1834 | {
|
---|
| 1835 | ret = mbedtls_aes_setkey_enc( &ctx, key, keybits );
|
---|
| 1836 | aes_tests = aes_test_ecb_enc[u];
|
---|
| 1837 | }
|
---|
| 1838 |
|
---|
| 1839 | /*
|
---|
| 1840 | * AES-192 is an optional feature that may be unavailable when
|
---|
| 1841 | * there is an alternative underlying implementation i.e. when
|
---|
| 1842 | * MBEDTLS_AES_ALT is defined.
|
---|
| 1843 | */
|
---|
| 1844 | if( ret == MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED && keybits == 192 )
|
---|
| 1845 | {
|
---|
| 1846 | mbedtls_printf( "skipped\n" );
|
---|
| 1847 | continue;
|
---|
| 1848 | }
|
---|
| 1849 | else if( ret != 0 )
|
---|
| 1850 | {
|
---|
| 1851 | goto exit;
|
---|
| 1852 | }
|
---|
| 1853 |
|
---|
| 1854 | for( j = 0; j < 10000; j++ )
|
---|
| 1855 | {
|
---|
| 1856 | ret = mbedtls_aes_crypt_ecb( &ctx, mode, buf, buf );
|
---|
| 1857 | if( ret != 0 )
|
---|
| 1858 | goto exit;
|
---|
| 1859 | }
|
---|
| 1860 |
|
---|
| 1861 | if( memcmp( buf, aes_tests, 16 ) != 0 )
|
---|
| 1862 | {
|
---|
| 1863 | ret = 1;
|
---|
| 1864 | goto exit;
|
---|
| 1865 | }
|
---|
| 1866 |
|
---|
| 1867 | if( verbose != 0 )
|
---|
| 1868 | mbedtls_printf( "passed\n" );
|
---|
| 1869 | }
|
---|
| 1870 |
|
---|
| 1871 | if( verbose != 0 )
|
---|
| 1872 | mbedtls_printf( "\n" );
|
---|
| 1873 |
|
---|
| 1874 | #if defined(MBEDTLS_CIPHER_MODE_CBC)
|
---|
| 1875 | /*
|
---|
| 1876 | * CBC mode
|
---|
| 1877 | */
|
---|
| 1878 | for( i = 0; i < 6; i++ )
|
---|
| 1879 | {
|
---|
| 1880 | u = i >> 1;
|
---|
| 1881 | keybits = 128 + u * 64;
|
---|
| 1882 | mode = i & 1;
|
---|
| 1883 |
|
---|
| 1884 | if( verbose != 0 )
|
---|
| 1885 | mbedtls_printf( " AES-CBC-%3d (%s): ", keybits,
|
---|
| 1886 | ( mode == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" );
|
---|
| 1887 |
|
---|
| 1888 | memset( iv , 0, 16 );
|
---|
| 1889 | memset( prv, 0, 16 );
|
---|
| 1890 | memset( buf, 0, 16 );
|
---|
| 1891 |
|
---|
| 1892 | if( mode == MBEDTLS_AES_DECRYPT )
|
---|
| 1893 | {
|
---|
| 1894 | ret = mbedtls_aes_setkey_dec( &ctx, key, keybits );
|
---|
| 1895 | aes_tests = aes_test_cbc_dec[u];
|
---|
| 1896 | }
|
---|
| 1897 | else
|
---|
| 1898 | {
|
---|
| 1899 | ret = mbedtls_aes_setkey_enc( &ctx, key, keybits );
|
---|
| 1900 | aes_tests = aes_test_cbc_enc[u];
|
---|
| 1901 | }
|
---|
| 1902 |
|
---|
| 1903 | /*
|
---|
| 1904 | * AES-192 is an optional feature that may be unavailable when
|
---|
| 1905 | * there is an alternative underlying implementation i.e. when
|
---|
| 1906 | * MBEDTLS_AES_ALT is defined.
|
---|
| 1907 | */
|
---|
| 1908 | if( ret == MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED && keybits == 192 )
|
---|
| 1909 | {
|
---|
| 1910 | mbedtls_printf( "skipped\n" );
|
---|
| 1911 | continue;
|
---|
| 1912 | }
|
---|
| 1913 | else if( ret != 0 )
|
---|
| 1914 | {
|
---|
| 1915 | goto exit;
|
---|
| 1916 | }
|
---|
| 1917 |
|
---|
| 1918 | for( j = 0; j < 10000; j++ )
|
---|
| 1919 | {
|
---|
| 1920 | if( mode == MBEDTLS_AES_ENCRYPT )
|
---|
| 1921 | {
|
---|
| 1922 | unsigned char tmp[16];
|
---|
| 1923 |
|
---|
| 1924 | memcpy( tmp, prv, 16 );
|
---|
| 1925 | memcpy( prv, buf, 16 );
|
---|
| 1926 | memcpy( buf, tmp, 16 );
|
---|
| 1927 | }
|
---|
| 1928 |
|
---|
| 1929 | ret = mbedtls_aes_crypt_cbc( &ctx, mode, 16, iv, buf, buf );
|
---|
| 1930 | if( ret != 0 )
|
---|
| 1931 | goto exit;
|
---|
| 1932 |
|
---|
| 1933 | }
|
---|
| 1934 |
|
---|
| 1935 | if( memcmp( buf, aes_tests, 16 ) != 0 )
|
---|
| 1936 | {
|
---|
| 1937 | ret = 1;
|
---|
| 1938 | goto exit;
|
---|
| 1939 | }
|
---|
| 1940 |
|
---|
| 1941 | if( verbose != 0 )
|
---|
| 1942 | mbedtls_printf( "passed\n" );
|
---|
| 1943 | }
|
---|
| 1944 |
|
---|
| 1945 | if( verbose != 0 )
|
---|
| 1946 | mbedtls_printf( "\n" );
|
---|
| 1947 | #endif /* MBEDTLS_CIPHER_MODE_CBC */
|
---|
| 1948 |
|
---|
| 1949 | #if defined(MBEDTLS_CIPHER_MODE_CFB)
|
---|
| 1950 | /*
|
---|
| 1951 | * CFB128 mode
|
---|
| 1952 | */
|
---|
| 1953 | for( i = 0; i < 6; i++ )
|
---|
| 1954 | {
|
---|
| 1955 | u = i >> 1;
|
---|
| 1956 | keybits = 128 + u * 64;
|
---|
| 1957 | mode = i & 1;
|
---|
| 1958 |
|
---|
| 1959 | if( verbose != 0 )
|
---|
| 1960 | mbedtls_printf( " AES-CFB128-%3d (%s): ", keybits,
|
---|
| 1961 | ( mode == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" );
|
---|
| 1962 |
|
---|
| 1963 | memcpy( iv, aes_test_cfb128_iv, 16 );
|
---|
| 1964 | memcpy( key, aes_test_cfb128_key[u], keybits / 8 );
|
---|
| 1965 |
|
---|
| 1966 | offset = 0;
|
---|
| 1967 | ret = mbedtls_aes_setkey_enc( &ctx, key, keybits );
|
---|
| 1968 | /*
|
---|
| 1969 | * AES-192 is an optional feature that may be unavailable when
|
---|
| 1970 | * there is an alternative underlying implementation i.e. when
|
---|
| 1971 | * MBEDTLS_AES_ALT is defined.
|
---|
| 1972 | */
|
---|
| 1973 | if( ret == MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED && keybits == 192 )
|
---|
| 1974 | {
|
---|
| 1975 | mbedtls_printf( "skipped\n" );
|
---|
| 1976 | continue;
|
---|
| 1977 | }
|
---|
| 1978 | else if( ret != 0 )
|
---|
| 1979 | {
|
---|
| 1980 | goto exit;
|
---|
| 1981 | }
|
---|
| 1982 |
|
---|
| 1983 | if( mode == MBEDTLS_AES_DECRYPT )
|
---|
| 1984 | {
|
---|
| 1985 | memcpy( buf, aes_test_cfb128_ct[u], 64 );
|
---|
| 1986 | aes_tests = aes_test_cfb128_pt;
|
---|
| 1987 | }
|
---|
| 1988 | else
|
---|
| 1989 | {
|
---|
| 1990 | memcpy( buf, aes_test_cfb128_pt, 64 );
|
---|
| 1991 | aes_tests = aes_test_cfb128_ct[u];
|
---|
| 1992 | }
|
---|
| 1993 |
|
---|
| 1994 | ret = mbedtls_aes_crypt_cfb128( &ctx, mode, 64, &offset, iv, buf, buf );
|
---|
| 1995 | if( ret != 0 )
|
---|
| 1996 | goto exit;
|
---|
| 1997 |
|
---|
| 1998 | if( memcmp( buf, aes_tests, 64 ) != 0 )
|
---|
| 1999 | {
|
---|
| 2000 | ret = 1;
|
---|
| 2001 | goto exit;
|
---|
| 2002 | }
|
---|
| 2003 |
|
---|
| 2004 | if( verbose != 0 )
|
---|
| 2005 | mbedtls_printf( "passed\n" );
|
---|
| 2006 | }
|
---|
| 2007 |
|
---|
| 2008 | if( verbose != 0 )
|
---|
| 2009 | mbedtls_printf( "\n" );
|
---|
| 2010 | #endif /* MBEDTLS_CIPHER_MODE_CFB */
|
---|
| 2011 |
|
---|
| 2012 | #if defined(MBEDTLS_CIPHER_MODE_OFB)
|
---|
| 2013 | /*
|
---|
| 2014 | * OFB mode
|
---|
| 2015 | */
|
---|
| 2016 | for( i = 0; i < 6; i++ )
|
---|
| 2017 | {
|
---|
| 2018 | u = i >> 1;
|
---|
| 2019 | keybits = 128 + u * 64;
|
---|
| 2020 | mode = i & 1;
|
---|
| 2021 |
|
---|
| 2022 | if( verbose != 0 )
|
---|
| 2023 | mbedtls_printf( " AES-OFB-%3d (%s): ", keybits,
|
---|
| 2024 | ( mode == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" );
|
---|
| 2025 |
|
---|
| 2026 | memcpy( iv, aes_test_ofb_iv, 16 );
|
---|
| 2027 | memcpy( key, aes_test_ofb_key[u], keybits / 8 );
|
---|
| 2028 |
|
---|
| 2029 | offset = 0;
|
---|
| 2030 | ret = mbedtls_aes_setkey_enc( &ctx, key, keybits );
|
---|
| 2031 | /*
|
---|
| 2032 | * AES-192 is an optional feature that may be unavailable when
|
---|
| 2033 | * there is an alternative underlying implementation i.e. when
|
---|
| 2034 | * MBEDTLS_AES_ALT is defined.
|
---|
| 2035 | */
|
---|
| 2036 | if( ret == MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED && keybits == 192 )
|
---|
| 2037 | {
|
---|
| 2038 | mbedtls_printf( "skipped\n" );
|
---|
| 2039 | continue;
|
---|
| 2040 | }
|
---|
| 2041 | else if( ret != 0 )
|
---|
| 2042 | {
|
---|
| 2043 | goto exit;
|
---|
| 2044 | }
|
---|
| 2045 |
|
---|
| 2046 | if( mode == MBEDTLS_AES_DECRYPT )
|
---|
| 2047 | {
|
---|
| 2048 | memcpy( buf, aes_test_ofb_ct[u], 64 );
|
---|
| 2049 | aes_tests = aes_test_ofb_pt;
|
---|
| 2050 | }
|
---|
| 2051 | else
|
---|
| 2052 | {
|
---|
| 2053 | memcpy( buf, aes_test_ofb_pt, 64 );
|
---|
| 2054 | aes_tests = aes_test_ofb_ct[u];
|
---|
| 2055 | }
|
---|
| 2056 |
|
---|
| 2057 | ret = mbedtls_aes_crypt_ofb( &ctx, 64, &offset, iv, buf, buf );
|
---|
| 2058 | if( ret != 0 )
|
---|
| 2059 | goto exit;
|
---|
| 2060 |
|
---|
| 2061 | if( memcmp( buf, aes_tests, 64 ) != 0 )
|
---|
| 2062 | {
|
---|
| 2063 | ret = 1;
|
---|
| 2064 | goto exit;
|
---|
| 2065 | }
|
---|
| 2066 |
|
---|
| 2067 | if( verbose != 0 )
|
---|
| 2068 | mbedtls_printf( "passed\n" );
|
---|
| 2069 | }
|
---|
| 2070 |
|
---|
| 2071 | if( verbose != 0 )
|
---|
| 2072 | mbedtls_printf( "\n" );
|
---|
| 2073 | #endif /* MBEDTLS_CIPHER_MODE_OFB */
|
---|
| 2074 |
|
---|
| 2075 | #if defined(MBEDTLS_CIPHER_MODE_CTR)
|
---|
| 2076 | /*
|
---|
| 2077 | * CTR mode
|
---|
| 2078 | */
|
---|
| 2079 | for( i = 0; i < 6; i++ )
|
---|
| 2080 | {
|
---|
| 2081 | u = i >> 1;
|
---|
| 2082 | mode = i & 1;
|
---|
| 2083 |
|
---|
| 2084 | if( verbose != 0 )
|
---|
| 2085 | mbedtls_printf( " AES-CTR-128 (%s): ",
|
---|
| 2086 | ( mode == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" );
|
---|
| 2087 |
|
---|
| 2088 | memcpy( nonce_counter, aes_test_ctr_nonce_counter[u], 16 );
|
---|
| 2089 | memcpy( key, aes_test_ctr_key[u], 16 );
|
---|
| 2090 |
|
---|
| 2091 | offset = 0;
|
---|
| 2092 | if( ( ret = mbedtls_aes_setkey_enc( &ctx, key, 128 ) ) != 0 )
|
---|
| 2093 | goto exit;
|
---|
| 2094 |
|
---|
| 2095 | len = aes_test_ctr_len[u];
|
---|
| 2096 |
|
---|
| 2097 | if( mode == MBEDTLS_AES_DECRYPT )
|
---|
| 2098 | {
|
---|
| 2099 | memcpy( buf, aes_test_ctr_ct[u], len );
|
---|
| 2100 | aes_tests = aes_test_ctr_pt[u];
|
---|
| 2101 | }
|
---|
| 2102 | else
|
---|
| 2103 | {
|
---|
| 2104 | memcpy( buf, aes_test_ctr_pt[u], len );
|
---|
| 2105 | aes_tests = aes_test_ctr_ct[u];
|
---|
| 2106 | }
|
---|
| 2107 |
|
---|
| 2108 | ret = mbedtls_aes_crypt_ctr( &ctx, len, &offset, nonce_counter,
|
---|
| 2109 | stream_block, buf, buf );
|
---|
| 2110 | if( ret != 0 )
|
---|
| 2111 | goto exit;
|
---|
| 2112 |
|
---|
| 2113 | if( memcmp( buf, aes_tests, len ) != 0 )
|
---|
| 2114 | {
|
---|
| 2115 | ret = 1;
|
---|
| 2116 | goto exit;
|
---|
| 2117 | }
|
---|
| 2118 |
|
---|
| 2119 | if( verbose != 0 )
|
---|
| 2120 | mbedtls_printf( "passed\n" );
|
---|
| 2121 | }
|
---|
| 2122 |
|
---|
| 2123 | if( verbose != 0 )
|
---|
| 2124 | mbedtls_printf( "\n" );
|
---|
| 2125 | #endif /* MBEDTLS_CIPHER_MODE_CTR */
|
---|
| 2126 |
|
---|
| 2127 | #if defined(MBEDTLS_CIPHER_MODE_XTS)
|
---|
| 2128 | {
|
---|
| 2129 | static const int num_tests =
|
---|
| 2130 | sizeof(aes_test_xts_key) / sizeof(*aes_test_xts_key);
|
---|
| 2131 | mbedtls_aes_xts_context ctx_xts;
|
---|
| 2132 |
|
---|
| 2133 | /*
|
---|
| 2134 | * XTS mode
|
---|
| 2135 | */
|
---|
| 2136 | mbedtls_aes_xts_init( &ctx_xts );
|
---|
| 2137 |
|
---|
| 2138 | for( i = 0; i < num_tests << 1; i++ )
|
---|
| 2139 | {
|
---|
| 2140 | const unsigned char *data_unit;
|
---|
| 2141 | u = i >> 1;
|
---|
| 2142 | mode = i & 1;
|
---|
| 2143 |
|
---|
| 2144 | if( verbose != 0 )
|
---|
| 2145 | mbedtls_printf( " AES-XTS-128 (%s): ",
|
---|
| 2146 | ( mode == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" );
|
---|
| 2147 |
|
---|
| 2148 | memset( key, 0, sizeof( key ) );
|
---|
| 2149 | memcpy( key, aes_test_xts_key[u], 32 );
|
---|
| 2150 | data_unit = aes_test_xts_data_unit[u];
|
---|
| 2151 |
|
---|
| 2152 | len = sizeof( *aes_test_xts_ct32 );
|
---|
| 2153 |
|
---|
| 2154 | if( mode == MBEDTLS_AES_DECRYPT )
|
---|
| 2155 | {
|
---|
| 2156 | ret = mbedtls_aes_xts_setkey_dec( &ctx_xts, key, 256 );
|
---|
| 2157 | if( ret != 0)
|
---|
| 2158 | goto exit;
|
---|
| 2159 | memcpy( buf, aes_test_xts_ct32[u], len );
|
---|
| 2160 | aes_tests = aes_test_xts_pt32[u];
|
---|
| 2161 | }
|
---|
| 2162 | else
|
---|
| 2163 | {
|
---|
| 2164 | ret = mbedtls_aes_xts_setkey_enc( &ctx_xts, key, 256 );
|
---|
| 2165 | if( ret != 0)
|
---|
| 2166 | goto exit;
|
---|
| 2167 | memcpy( buf, aes_test_xts_pt32[u], len );
|
---|
| 2168 | aes_tests = aes_test_xts_ct32[u];
|
---|
| 2169 | }
|
---|
| 2170 |
|
---|
| 2171 |
|
---|
| 2172 | ret = mbedtls_aes_crypt_xts( &ctx_xts, mode, len, data_unit,
|
---|
| 2173 | buf, buf );
|
---|
| 2174 | if( ret != 0 )
|
---|
| 2175 | goto exit;
|
---|
| 2176 |
|
---|
| 2177 | if( memcmp( buf, aes_tests, len ) != 0 )
|
---|
| 2178 | {
|
---|
| 2179 | ret = 1;
|
---|
| 2180 | goto exit;
|
---|
| 2181 | }
|
---|
| 2182 |
|
---|
| 2183 | if( verbose != 0 )
|
---|
| 2184 | mbedtls_printf( "passed\n" );
|
---|
| 2185 | }
|
---|
| 2186 |
|
---|
| 2187 | if( verbose != 0 )
|
---|
| 2188 | mbedtls_printf( "\n" );
|
---|
| 2189 |
|
---|
| 2190 | mbedtls_aes_xts_free( &ctx_xts );
|
---|
| 2191 | }
|
---|
| 2192 | #endif /* MBEDTLS_CIPHER_MODE_XTS */
|
---|
| 2193 |
|
---|
| 2194 | ret = 0;
|
---|
| 2195 |
|
---|
| 2196 | exit:
|
---|
| 2197 | if( ret != 0 && verbose != 0 )
|
---|
| 2198 | mbedtls_printf( "failed\n" );
|
---|
| 2199 |
|
---|
| 2200 | mbedtls_aes_free( &ctx );
|
---|
| 2201 |
|
---|
| 2202 | return( ret );
|
---|
| 2203 | }
|
---|
| 2204 |
|
---|
| 2205 | #endif /* MBEDTLS_SELF_TEST */
|
---|
| 2206 |
|
---|
| 2207 | #endif /* MBEDTLS_AES_C */
|
---|