Diffstat (limited to 'libetpan/src/data-types/hmac-md5.h') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | libetpan/src/data-types/hmac-md5.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/libetpan/src/data-types/hmac-md5.h b/libetpan/src/data-types/hmac-md5.h new file mode 100644 index 0000000..87a7d9f --- a/dev/null +++ b/libetpan/src/data-types/hmac-md5.h @@ -0,0 +1,94 @@ +/* + * libEtPan! -- a mail stuff library + * + * Copyright (C) 2001, 2005 - DINH Viet Hoa + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the libEtPan! project nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* hmac-md5.h -- HMAC_MD5 functions + */ + +/* + * $Id$ + */ + +#ifndef HMAC_MD5_H +#define HMAC_MD5_H 1 + +#ifdef __cplusplus +extern "C" { +#endif + +#define HMAC_MD5_SIZE 16 + +/* intermediate MD5 context */ +typedef struct HMAC_MD5_CTX_s { + MD5_CTX ictx, octx; +} HMAC_MD5_CTX; + +/* intermediate HMAC state + * values stored in network byte order (Big Endian) + */ +typedef struct HMAC_MD5_STATE_s { + UINT4 istate[4]; + UINT4 ostate[4]; +} HMAC_MD5_STATE; + +/* One step hmac computation + * + * digest may be same as text or key + */ +void hmac_md5(const unsigned char *text, int text_len, + const unsigned char *key, int key_len, + unsigned char digest[HMAC_MD5_SIZE]); + +/* create context from key + */ +void hmac_md5_init(HMAC_MD5_CTX *hmac, + const unsigned char *key, int key_len); + +/* precalculate intermediate state from key + */ +void hmac_md5_precalc(HMAC_MD5_STATE *hmac, + const unsigned char *key, int key_len); + +/* initialize context from intermediate state + */ +void hmac_md5_import(HMAC_MD5_CTX *hmac, HMAC_MD5_STATE *state); + +#define hmac_md5_update(hmac, text, text_len) MD5Update(&(hmac)->ictx, (text), (text_len)) + +/* finish hmac from intermediate result. Intermediate result is zeroed. + */ +void hmac_md5_final(unsigned char digest[HMAC_MD5_SIZE], + HMAC_MD5_CTX *hmac); + +#ifdef __cplusplus +} +#endif + +#endif /* HMAC_MD5_H */ |