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80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/*
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* shs1 - new NIST Secure Hash Standard-1 (SHS1)
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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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* @(#) $Revision: 29.2 $
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* @(#) $Id: shs1.h,v 29.2 2000/06/07 14:02:13 chongo Exp $
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* @(#) $Source: /usr/local/src/cmd/calc/RCS/shs1.h,v $
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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(__SHS1_H__)
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#define __SHS1_H__
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/* SHS1_CHUNKSIZE must be a power of 2 - fixed value defined by the algorithm */
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#define SHS1_CHUNKSIZE (1<<6)
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#define SHS1_CHUNKWORDS (SHS1_CHUNKSIZE/sizeof(USB32))
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/* SHS1_DIGESTSIZE is a the length of the digest as defined by the algorithm */
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#define SHS1_DIGESTSIZE (20)
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#define SHS1_DIGESTWORDS (SHS1_DIGESTSIZE/sizeof(USB32))
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/* SHS1_LOW - where low 32 bits of 64 bit count is stored during final */
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#define SHS1_LOW 15
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/* SHS1_HIGH - where high 32 bits of 64 bit count is stored during final */
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#define SHS1_HIGH 14
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/*
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* The structure for storing SHS1 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[SHS1_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[SHS1_CHUNKWORDS]; /* SHS1 chunk buffer */
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} SHS1_INFO;
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/*
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* SHS1COUNT(SHS1_INFO*, USB32) - update the 64 bit count in an SHS1_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 SHS1COUNT(shs1info, count) { \
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USB32 tmp_countLo; \
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tmp_countLo = (shs1info)->countLo; \
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if (((shs1info)->countLo += (count)) < tmp_countLo) { \
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(shs1info)->countHi++; \
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} \
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}
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#endif /* !__SHS1_H__ */
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