| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame] | 1 | /* cmac.h |
| 2 | * |
| 3 | * Copyright (C) 2006-2021 wolfSSL Inc. |
| 4 | * |
| 5 | * This file is part of wolfSSL. |
| 6 | * |
| 7 | * wolfSSL is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * wolfSSL is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA |
| 20 | */ |
| 21 | |
| 22 | |
| 23 | #ifndef WOLF_CRYPT_CMAC_H |
| 24 | #define WOLF_CRYPT_CMAC_H |
| 25 | |
| 26 | #include <wolfssl/wolfcrypt/types.h> |
| 27 | #include <wolfssl/wolfcrypt/aes.h> |
| 28 | |
| 29 | #if !defined(NO_AES) && defined(WOLFSSL_CMAC) |
| 30 | |
| 31 | #if defined(HAVE_FIPS) && \ |
| 32 | defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2) |
| 33 | #include <wolfssl/wolfcrypt/fips.h> |
| 34 | #endif /* HAVE_FIPS_VERSION >= 2 */ |
| 35 | |
| 36 | #ifdef __cplusplus |
| 37 | extern "C" { |
| 38 | #endif |
| 39 | |
| 40 | /* avoid redefinition of structs */ |
| 41 | #if !defined(HAVE_FIPS) || \ |
| 42 | (defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2)) |
| 43 | |
| 44 | #ifndef WC_CMAC_TYPE_DEFINED |
| 45 | typedef struct Cmac Cmac; |
| 46 | #define WC_CMAC_TYPE_DEFINED |
| 47 | #endif |
| 48 | struct Cmac { |
| 49 | Aes aes; |
| 50 | byte buffer[AES_BLOCK_SIZE]; /* partially stored block */ |
| 51 | byte digest[AES_BLOCK_SIZE]; /* running digest */ |
| 52 | byte k1[AES_BLOCK_SIZE]; |
| 53 | byte k2[AES_BLOCK_SIZE]; |
| 54 | word32 bufferSz; |
| 55 | word32 totalSz; |
| 56 | #ifdef WOLF_CRYPTO_CB |
| 57 | int devId; |
| 58 | void* devCtx; |
| 59 | #ifdef WOLFSSL_QNX_CAAM |
| 60 | byte ctx[32]; /* hold state for save and return */ |
| 61 | word32 blackKey; |
| 62 | word32 keylen; |
| 63 | byte initialized; |
| 64 | #endif |
| 65 | #endif |
| 66 | }; |
| 67 | |
| 68 | |
| 69 | |
| 70 | typedef enum CmacType { |
| 71 | WC_CMAC_AES = 1 |
| 72 | } CmacType; |
| 73 | |
| 74 | #define WC_CMAC_TAG_MAX_SZ AES_BLOCK_SIZE |
| 75 | #define WC_CMAC_TAG_MIN_SZ (AES_BLOCK_SIZE/4) |
| 76 | |
| 77 | #endif /* HAVE_FIPS */ |
| 78 | |
| 79 | WOLFSSL_API |
| 80 | int wc_InitCmac(Cmac* cmac, |
| 81 | const byte* key, word32 keySz, |
| 82 | int type, void* unused); |
| 83 | |
| 84 | WOLFSSL_API |
| 85 | int wc_InitCmac_ex(Cmac* cmac, |
| 86 | const byte* key, word32 keySz, |
| 87 | int type, void* unused, void* heap, int devId); |
| 88 | |
| 89 | WOLFSSL_API |
| 90 | int wc_CmacUpdate(Cmac* cmac, |
| 91 | const byte* in, word32 inSz); |
| 92 | WOLFSSL_API |
| 93 | int wc_CmacFinal(Cmac* cmac, |
| 94 | byte* out, word32* outSz); |
| 95 | |
| 96 | WOLFSSL_API |
| 97 | int wc_AesCmacGenerate(byte* out, word32* outSz, |
| 98 | const byte* in, word32 inSz, |
| 99 | const byte* key, word32 keySz); |
| 100 | |
| 101 | WOLFSSL_API |
| 102 | int wc_AesCmacVerify(const byte* check, word32 checkSz, |
| 103 | const byte* in, word32 inSz, |
| 104 | const byte* key, word32 keySz); |
| 105 | |
| 106 | #ifdef __cplusplus |
| 107 | } /* extern "C" */ |
| 108 | #endif |
| 109 | |
| 110 | |
| 111 | #endif /* NO_AES && WOLFSSL_CMAC */ |
| 112 | #endif /* WOLF_CRYPT_CMAC_H */ |
| 113 | |