=================================================================== RCS file: /cvsrepo/anoncvs/cvs/src/include/sha1.h,v retrieving revision 1.4 retrieving revision 1.5 diff -u -r1.4 -r1.5 --- src/include/sha1.h 1996/09/30 23:27:04 1.4 +++ src/include/sha1.h 1997/07/10 22:53:01 1.5 @@ -1,57 +1,23 @@ -/* --------------------------------- SHA1.H ------------------------------- */ - -/* NIST proposed Secure Hash Standard. - - Written 2 September 1992, Peter C. Gutmann. - This implementation placed in the public domain. - - Comments to pgut1@cs.aukuni.ac.nz */ +/* $OpenBSD: sha1.h,v 1.5 1997/07/10 22:53:01 millert Exp $ */ +/* + * SHA-1 in C + * By Steve Reid + * 100% Public Domain + */ + #ifndef _SHA1_H #define _SHA1_H -/* The SHA1 block size and message digest sizes, in bytes */ - -#define SHA1_BLOCKSIZE 64 -#define SHA1_DIGESTSIZE 20 - -/* The structure for storing SHA1 info */ - typedef struct { - u_int32_t digest[ 5 ]; /* Message digest */ - u_int32_t countLo, countHi; /* 64-bit bit count */ - u_int32_t data[ 16 ]; /* SHA1 data buffer */ -} SHA1_INFO; - -/* The next def turns on the change to the algorithm introduced by NIST at - * the behest of the NSA. It supposedly corrects a weakness in the original - * formulation. Bruce Schneier described it thus in a posting to the - * Cypherpunks mailing list on June 21, 1994 (as told to us by Steve Bellovin): - * - * This is the fix to the Secure Hash Standard, NIST FIPS PUB 180: - * - * In Section 7 of FIPS 180 (page 9), the line which reads - * - * "b) For t=16 to 79 let Wt = Wt-3 XOR Wt-8 XOR Wt-14 XOR - * Wt-16." - * - * is to be replaced by - * - * "b) For t=16 to 79 let Wt = S1(Wt-3 XOR Wt-8 XOR Wt-14 XOR - * Wt-16)." - * - * where S1 is a left circular shift by one bit as defined in - * Section 3 of FIPS 180 (page 6): - * - * S1(X) = (X<<1) OR (X>>31). - * - */ -#define NEW_SHA1 - -void sha1Init __P((SHA1_INFO *)); -void sha1Transform __P((SHA1_INFO *)); -void sha1Final __P((SHA1_INFO *)); -void sha1Update __P((SHA1_INFO *, unsigned char *, int)); -void sha1ByteReverse __P((u_int32_t *, int)); + u_int32_t state[5]; + u_int32_t count[2]; + u_char buffer[64]; +} SHA1_CTX; + +void SHA1Transform __P((u_int32_t state[5], unsigned char buffer[64])); +void SHA1Init __P((SHA1_CTX* context)); +void SHA1Update __P((SHA1_CTX* context, unsigned char* data, unsigned int len)); +void SHA1Final __P((unsigned char digest[20], SHA1_CTX* context)); #endif /* _SHA1_H */