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a31078bbec
Some folks might think: “you still use RCS”?!? And we will say, hey, at least we switched from SCCS to RCS back in … I think it was around 1994 ... at least we are keeping up! :-) :-) :-) Logs say that SCCS version 18 became RCS version 19 on 1994 March 18. RCS served us well. But now it is time to move on. And so we are switching to git. Calc releases produce a lot of file changes. In the 125 releases of calc since 1996, when I started managing calc releases, there have been 15473 file mods!
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/*
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* sha1 - new NIST Secure Hash Standard-1 (SHA1)
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*
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* Written 2 September 1992, Peter C. Gutmann.
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*
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* This file and been extensively modified by:
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*
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* Landon Curt Noll
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* http://www.isthe.com/chongo/
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*
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* chongo <was here> /\../\
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*
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* This code has been placed in the public domain. Please do not
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* copyright this code.
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*
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* LANDON CURT NOLL DISCLAIMS ALL WARRANTIES WITH REGARD TO
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* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MER-
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* CHANTABILITY AND FITNESS. IN NO EVENT SHALL LANDON CURT
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* NOLL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
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* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* This file is not covered under version 2.1 of the GNU LGPL.
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*/
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#if !defined(INCLUDE_SHA1_H)
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#define INCLUDE_SHA1_H
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/* SHA1_CHUNKSIZE must be a power of 2 - fixed value defined by the algorithm */
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#define SHA1_CHUNKSIZE (1<<6)
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#define SHA1_CHUNKWORDS (SHA1_CHUNKSIZE/sizeof(USB32))
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/* SHA1_DIGESTSIZE is a the length of the digest as defined by the algorithm */
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#define SHA1_DIGESTSIZE (20)
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#define SHA1_DIGESTWORDS (SHA1_DIGESTSIZE/sizeof(USB32))
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/* SHA1_LOW - where low 32 bits of 64 bit count is stored during final */
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#define SHA1_LOW 15
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/* SHA1_HIGH - where high 32 bits of 64 bit count is stored during final */
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#define SHA1_HIGH 14
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/*
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* The structure for storing SHA1 info
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*
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* We will assume that bit count is a multiple of 8.
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*/
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typedef struct {
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USB32 digest[SHA1_DIGESTWORDS]; /* message digest */
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USB32 countLo; /* 64 bit count: bits 3-34 */
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USB32 countHi; /* 64 bit count: bits 35-63 */
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USB32 datalen; /* length of data in data */
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USB32 data[SHA1_CHUNKWORDS]; /* SHA1 chunk buffer */
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} SHA1_INFO;
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/*
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* SHA1COUNT(SHA1_INFO*, USB32) - update the 64 bit count in an SHA1_INFO
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*
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* We will count bytes and convert to bit count during the final
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* transform.
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*/
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#define SHA1COUNT(sha1info, count) { \
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USB32 tmp_countLo; \
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tmp_countLo = (sha1info)->countLo; \
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if (((sha1info)->countLo += (count)) < tmp_countLo) { \
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(sha1info)->countHi++; \
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} \
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}
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#endif /* !INCLUDE_SHA1_H */
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