/usr/include/wolfssl/wolfcrypt/cmac.h is in libwolfssl-dev 3.13.0+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 | /* cmac.h
*
* Copyright (C) 2006-2017 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
#ifndef WOLF_CRYPT_CMAC_H
#define WOLF_CRYPT_CMAC_H
#include <wolfssl/wolfcrypt/types.h>
#include <wolfssl/wolfcrypt/aes.h>
#if !defined(NO_AES) && defined(WOLFSSL_CMAC)
#ifdef __cplusplus
extern "C" {
#endif
typedef struct Cmac {
Aes aes;
byte buffer[AES_BLOCK_SIZE]; /* partially stored block */
byte digest[AES_BLOCK_SIZE]; /* running digest */
byte k1[AES_BLOCK_SIZE];
byte k2[AES_BLOCK_SIZE];
word32 bufferSz;
word32 totalSz;
} Cmac;
typedef enum CmacType {
WC_CMAC_AES = 1
} CmacType;
WOLFSSL_API
int wc_InitCmac(Cmac* cmac,
const byte* key, word32 keySz,
int type, void* unused);
WOLFSSL_API
int wc_CmacUpdate(Cmac* cmac,
const byte* in, word32 inSz);
WOLFSSL_API
int wc_CmacFinal(Cmac* cmac,
byte* out, word32* outSz);
WOLFSSL_API
int wc_AesCmacGenerate(byte* out, word32* outSz,
const byte* in, word32 inSz,
const byte* key, word32 keySz);
WOLFSSL_API
int wc_AesCmacVerify(const byte* check, word32 checkSz,
const byte* in, word32 inSz,
const byte* key, word32 keySz);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* NO_AES && WOLFSSL_CMAC */
#endif /* WOLF_CRYPT_CMAC_H */
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