mirror of
https://github.com/lcn2/calc.git
synced 2025-08-16 01:03:29 +03:00
74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/*
|
|
* shs1 - new NIST Secure Hash Standard-1 (SHS1)
|
|
*
|
|
* Written 2 September 1992, Peter C. Gutmann.
|
|
*
|
|
* This file was Modified by:
|
|
*
|
|
* Landon Curt Noll
|
|
* http://reality.sgi.com/chongo
|
|
*
|
|
* chongo <was here> /\../\
|
|
*
|
|
* This code has been placed in the public domain. Please do not
|
|
* copyright this code.
|
|
*
|
|
* LANDON CURT NOLL DISCLAIMS ALL WARRANTIES WITH REGARD TO
|
|
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MER-
|
|
* CHANTABILITY AND FITNESS. IN NO EVENT SHALL LANDON CURT
|
|
* NOLL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
|
|
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
|
|
* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
|
|
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
|
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
|
|
#if !defined(__SHS1_H__)
|
|
#define __SHS1_H__
|
|
|
|
|
|
/* SHS1_CHUNKSIZE must be a power of 2 - fixed value defined by the algorithm */
|
|
#define SHS1_CHUNKSIZE (1<<6)
|
|
#define SHS1_CHUNKWORDS (SHS1_CHUNKSIZE/sizeof(USB32))
|
|
|
|
/* SHS1_DIGESTSIZE is a the length of the digest as defined by the algorithm */
|
|
#define SHS1_DIGESTSIZE (20)
|
|
#define SHS1_DIGESTWORDS (SHS1_DIGESTSIZE/sizeof(USB32))
|
|
|
|
/* SHS1_LOW - where low 32 bits of 64 bit count is stored during final */
|
|
#define SHS1_LOW 15
|
|
|
|
/* SHS1_HIGH - where high 32 bits of 64 bit count is stored during final */
|
|
#define SHS1_HIGH 14
|
|
|
|
/*
|
|
* The structure for storing SHS1 info
|
|
*
|
|
* We will assume that bit count is a multiple of 8.
|
|
*/
|
|
typedef struct {
|
|
USB32 digest[SHS1_DIGESTWORDS]; /* message digest */
|
|
USB32 countLo; /* 64 bit count: bits 3-34 */
|
|
USB32 countHi; /* 64 bit count: bits 35-63 */
|
|
USB32 datalen; /* length of data in data */
|
|
USB32 data[SHS1_CHUNKWORDS]; /* SHS1 chunk buffer */
|
|
} SHS1_INFO;
|
|
|
|
/*
|
|
* SHS1COUNT(SHS1_INFO*, USB32) - update the 64 bit count in an SHS1_INFO
|
|
*
|
|
* We will count bytes and convert to bit count during the final
|
|
* transform.
|
|
*/
|
|
#define SHS1COUNT(shs1info, count) { \
|
|
USB32 tmp_countLo; \
|
|
tmp_countLo = (shs1info)->countLo; \
|
|
if (((shs1info)->countLo += (count)) < tmp_countLo) { \
|
|
(shs1info)->countHi++; \
|
|
} \
|
|
}
|
|
|
|
|
|
#endif /* !__SHS1_H__ */
|