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68 lines
2.5 KiB
C
68 lines
2.5 KiB
C
/*
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sha1.h: Implementation of SHA-1 Secure Hash Algorithm-1
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Based upon: NIST FIPS180-1 Secure Hash Algorithm-1
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http://www.itl.nist.gov/fipspubs/fip180-1.htm
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Non-official Japanese Translation by HIRATA Yasuyuki:
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http://yasu.asuka.net/translations/SHA-1.html
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Copyright (C) 2002 vi@nwr.jp. All rights reserved.
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgement in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as beging the original software.
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3. This notice may not be removed or altered from any source distribution.
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Note:
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The copyright notice above is copied from md5.h by L. Petet Deutsch
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<ghost@aladdin.com>. Thank him since I'm not a good speaker of English. :)
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*/
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#ifndef SHA1_H
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#define SHA1_H
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/* We use OpenSSL whenever possible, since it is likely to be more
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optimized and it is ok to use it with a MIT-licensed application.
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Otherwise, we use the included implementation by vi@nwr.jp. */
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#if defined(HAVE_OPENSSL) || defined(HAVE_LIBSSL)
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#undef SHA_DIGEST_LENGTH
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#include <openssl/sha.h>
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#else
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#include <inttypes.h>
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#define SHA1_OUTPUT_SIZE 20 /* in bytes */
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typedef struct sha1_state_s sha1_state_t;
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typedef uint32_t sha1_word_t; /* 32bits unsigned integer */
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typedef uint8_t sha1_byte_t; /* 8bits unsigned integer */
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/* Initialize SHA-1 algorithm */
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void sha1_init(sha1_state_t *pms);
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/* Append a string to SHA-1 algorithm */
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void sha1_update(sha1_state_t *pms, sha1_byte_t *input_buffer, int length);
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/* Finish the SHA-1 algorithm and return the hash */
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void sha1_finish(sha1_state_t *pms, sha1_byte_t output[SHA1_OUTPUT_SIZE]);
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/* Convenience version of the above */
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void tr_sha1( const void * input_buffer, int length, unsigned char * output);
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#define SHA1(in,inlen,out) tr_sha1(in,inlen,out)
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#endif /* ifndef HAVE_OPENSSL, HAVE_LIBSSL */
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#endif /* #ifndef SHA1_H */
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