A simple CyaSSL-based HMAC-MD5 implementation. Licensed under GPL v2.
Dependents: RFrec_full RFtrans_full
The output will be base64-encoded, with trailing "==", like this:
j62o/jZsAZD9i9m+32lIuQ==
Example
#include "mbed.h" #include "hmac_md5.h" Serial pc(USBTX, USBRX); // tx, rx void main(void) { const char * key = "MySecretKey"; const char * text = "message to be signed"; char output[26]; HMAC_MD5(key, text, output); printf("result = %s\n", output); while(true){} }
Diff: md5.h
- Revision:
- 0:83f3dcfa5c8f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/md5.h Wed Feb 06 20:35:03 2013 +0000 @@ -0,0 +1,66 @@ +/* md5.h + * + * Copyright (C) 2006-2012 Sawtooth Consulting Ltd. + * + * This file is part of CyaSSL. + * + * CyaSSL 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. + * + * CyaSSL 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ + +#ifndef NO_MD5 + +#ifndef CTAO_CRYPT_MD5_H +#define CTAO_CRYPT_MD5_H + +#include "types.h" + +#ifdef __cplusplus + extern "C" { +#endif + + +/* in bytes */ +enum { +#ifdef STM32F2_CRYPTO + MD5_REG_SIZE = 4, /* STM32 register size, bytes */ +#endif + MD5 = 0, /* hash type unique */ + MD5_BLOCK_SIZE = 64, + MD5_DIGEST_SIZE = 16, + MD5_PAD_SIZE = 56 +}; + + +/* MD5 digest */ +typedef struct Md5 { + word32 buffLen; /* in bytes */ + word32 loLen; /* length in bytes */ + word32 hiLen; /* length in bytes */ + word32 digest[MD5_DIGEST_SIZE / sizeof(word32)]; + word32 buffer[MD5_BLOCK_SIZE / sizeof(word32)]; +} Md5; + + +CYASSL_API void InitMd5(Md5*); +CYASSL_API void Md5Update(Md5*, const byte*, word32); +CYASSL_API void Md5Final(Md5*, byte*); + + +#ifdef __cplusplus + } /* extern "C" */ +#endif + +#endif /* CTAO_CRYPT_MD5_H */ +#endif /* NO_MD5 */