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Diffstat (limited to 'include/sha1.h')
-rw-r--r-- | include/sha1.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/include/sha1.h b/include/sha1.h new file mode 100644 index 0000000000..3030f2975f --- /dev/null +++ b/include/sha1.h @@ -0,0 +1,115 @@ +/** + * \file sha1.h + * based from http://xyssl.org/code/source/sha1/ + * FIPS-180-1 compliant SHA-1 implementation + * + * Copyright (C) 2003-2006 Christophe Devine + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License, version 2.1 as published by the Free Software Foundation. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA + */ +/* + * The SHA-1 standard was published by NIST in 1993. + * + * http://www.itl.nist.gov/fipspubs/fip180-1.htm + */ +#ifndef _SHA1_H +#define _SHA1_H + +#ifdef __cplusplus +extern "C" { +#endif + +#define SHA1_SUM_POS -0x20 +#define SHA1_SUM_LEN 20 + +/** + * \brief SHA-1 context structure + */ +typedef struct +{ + unsigned long total[2]; /*!< number of bytes processed */ + unsigned long state[5]; /*!< intermediate digest state */ + unsigned char buffer[64]; /*!< data block being processed */ +} +sha1_context; + +/** + * \brief SHA-1 context setup + * + * \param ctx SHA-1 context to be initialized + */ +void sha1_starts( sha1_context *ctx ); + +/** + * \brief SHA-1 process buffer + * + * \param ctx SHA-1 context + * \param input buffer holding the data + * \param ilen length of the input data + */ +void sha1_update( sha1_context *ctx, unsigned char *input, int ilen ); + +/** + * \brief SHA-1 final digest + * + * \param ctx SHA-1 context + * \param output SHA-1 checksum result + */ +void sha1_finish( sha1_context *ctx, unsigned char output[20] ); + +/** + * \brief Output = SHA-1( input buffer ) + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output SHA-1 checksum result + */ +void sha1_csum( unsigned char *input, int ilen, + unsigned char output[20] ); + +/** + * \brief Output = SHA-1( file contents ) + * + * \param path input file name + * \param output SHA-1 checksum result + * \return 0 if successful, or 1 if fopen failed + */ +int sha1_file( char *path, unsigned char output[20] ); + +/** + * \brief Output = HMAC-SHA-1( input buffer, hmac key ) + * + * \param key HMAC secret key + * \param keylen length of the HMAC key + * \param input buffer holding the data + * \param ilen length of the input data + * \param output HMAC-SHA-1 result + */ +void sha1_hmac( unsigned char *key, int keylen, + unsigned char *input, int ilen, + unsigned char output[20] ); + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int sha1_self_test( void ); + +#ifdef __cplusplus +} +#endif + +#endif /* sha1.h */ |