diff options
author | Todd C. Miller <millert@cvs.openbsd.org> | 1997-07-17 05:37:02 +0000 |
---|---|---|
committer | Todd C. Miller <millert@cvs.openbsd.org> | 1997-07-17 05:37:02 +0000 |
commit | cecd47c9e738eefe3b930ff905b9a9b501d40ef9 (patch) | |
tree | 536ed47d2d793a4869fdc86cecd3688ed28d03ce /lib/libc | |
parent | 24794a0328b7f04fcc7b08f52c0d99bc66218cd9 (diff) |
mdX(3)-like interface to RIPEMD-160 hash function. Code by
Antoon Bosselaers and massaged by me to fit the mdX(3) API.
Diffstat (limited to 'lib/libc')
-rw-r--r-- | lib/libc/hash/Makefile.inc | 4 | ||||
-rw-r--r-- | lib/libc/hash/rmd160.c | 383 | ||||
-rw-r--r-- | lib/libc/hash/rmd160hl.c | 80 |
3 files changed, 465 insertions, 2 deletions
diff --git a/lib/libc/hash/Makefile.inc b/lib/libc/hash/Makefile.inc index b0588dc775e..2579c98dfe6 100644 --- a/lib/libc/hash/Makefile.inc +++ b/lib/libc/hash/Makefile.inc @@ -1,9 +1,9 @@ -# $OpenBSD: Makefile.inc,v 1.3 1997/07/12 20:06:02 millert Exp $ +# $OpenBSD: Makefile.inc,v 1.4 1997/07/17 05:37:01 millert Exp $ # hash functions .PATH: ${.CURDIR}/hash -SRCS+= sha1.c sha1hl.c +SRCS+= sha1.c sha1hl.c rmd160.c rmd160hl.c MAN+= sha1.3 MLINKS+=sha1.3 SHA1Init.3 MLINKS+=sha1.3 SHA1Update.3 diff --git a/lib/libc/hash/rmd160.c b/lib/libc/hash/rmd160.c new file mode 100644 index 00000000000..92874ab8b6e --- /dev/null +++ b/lib/libc/hash/rmd160.c @@ -0,0 +1,383 @@ +/********************************************************************\ + * + * FILE: rmd160.c + * + * CONTENTS: A sample C-implementation of the RIPEMD-160 + * hash-function. + * TARGET: any computer with an ANSI C compiler + * + * AUTHOR: Antoon Bosselaers, ESAT-COSIC + * (Arranged for libc by Todd C. Miller) + * DATE: 1 March 1996 + * VERSION: 1.0 + * + * Copyright (c) Katholieke Universiteit Leuven + * 1996, All Rights Reserved + * +\********************************************************************/ + +/* header files */ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <rmd160.h> + +/********************************************************************/ + +/* macro definitions */ + +/* collect four bytes into one word: */ +#define BYTES_TO_DWORD(strptr) \ + (((u_int32_t) *((strptr)+3) << 24) | \ + ((u_int32_t) *((strptr)+2) << 16) | \ + ((u_int32_t) *((strptr)+1) << 8) | \ + ((u_int32_t) *(strptr))) + +/* ROL(x, n) cyclically rotates x over n bits to the left */ +/* x must be of an unsigned 32 bits type and 0 <= n < 32. */ +#define ROL(x, n) (((x) << (n)) | ((x) >> (32-(n)))) + +/* the three basic functions F(), G() and H() */ +#define F(x, y, z) ((x) ^ (y) ^ (z)) +#define G(x, y, z) (((x) & (y)) | (~(x) & (z))) +#define H(x, y, z) (((x) | ~(y)) ^ (z)) +#define I(x, y, z) (((x) & (z)) | ((y) & ~(z))) +#define J(x, y, z) ((x) ^ ((y) | ~(z))) + +/* the eight basic operations FF() through III() */ +#define FF(a, b, c, d, e, x, s) { \ + (a) += F((b), (c), (d)) + (x); \ + (a) = ROL((a), (s)) + (e); \ + (c) = ROL((c), 10); \ +} +#define GG(a, b, c, d, e, x, s) { \ + (a) += G((b), (c), (d)) + (x) + 0x5a827999U; \ + (a) = ROL((a), (s)) + (e); \ + (c) = ROL((c), 10); \ +} +#define HH(a, b, c, d, e, x, s) { \ + (a) += H((b), (c), (d)) + (x) + 0x6ed9eba1U; \ + (a) = ROL((a), (s)) + (e); \ + (c) = ROL((c), 10); \ +} +#define II(a, b, c, d, e, x, s) { \ + (a) += I((b), (c), (d)) + (x) + 0x8f1bbcdcU; \ + (a) = ROL((a), (s)) + (e); \ + (c) = ROL((c), 10); \ +} +#define JJ(a, b, c, d, e, x, s) { \ + (a) += J((b), (c), (d)) + (x) + 0xa953fd4eU; \ + (a) = ROL((a), (s)) + (e); \ + (c) = ROL((c), 10); \ +} +#define FFF(a, b, c, d, e, x, s) { \ + (a) += F((b), (c), (d)) + (x); \ + (a) = ROL((a), (s)) + (e); \ + (c) = ROL((c), 10); \ +} +#define GGG(a, b, c, d, e, x, s) { \ + (a) += G((b), (c), (d)) + (x) + 0x7a6d76e9U; \ + (a) = ROL((a), (s)) + (e); \ + (c) = ROL((c), 10); \ +} +#define HHH(a, b, c, d, e, x, s) { \ + (a) += H((b), (c), (d)) + (x) + 0x6d703ef3U; \ + (a) = ROL((a), (s)) + (e); \ + (c) = ROL((c), 10); \ +} +#define III(a, b, c, d, e, x, s) { \ + (a) += I((b), (c), (d)) + (x) + 0x5c4dd124U; \ + (a) = ROL((a), (s)) + (e); \ + (c) = ROL((c), 10); \ +} +#define JJJ(a, b, c, d, e, x, s) { \ + (a) += J((b), (c), (d)) + (x) + 0x50a28be6U; \ + (a) = ROL((a), (s)) + (e); \ + (c) = ROL((c), 10); \ +} + +/********************************************************************/ + +void RMD160Init(context) + RMD160_CTX *context; +{ + + /* ripemd-160 initialization constants */ + context->state[0] = 0x67452301U; + context->state[1] = 0xefcdab89U; + context->state[2] = 0x98badcfeU; + context->state[3] = 0x10325476U; + context->state[4] = 0xc3d2e1f0U; + context->length[0] = context->length[1] = 0; +} + +/********************************************************************/ + +void RMD160Transform(state, block) + u_int32_t state[5]; + const u_int32_t block[16]; +{ + u_int32_t aa = state[0], bb = state[1], cc = state[2], + dd = state[3], ee = state[4]; + u_int32_t aaa = state[0], bbb = state[1], ccc = state[2], + ddd = state[3], eee = state[4]; + + /* round 1 */ + FF(aa, bb, cc, dd, ee, block[ 0], 11); + FF(ee, aa, bb, cc, dd, block[ 1], 14); + FF(dd, ee, aa, bb, cc, block[ 2], 15); + FF(cc, dd, ee, aa, bb, block[ 3], 12); + FF(bb, cc, dd, ee, aa, block[ 4], 5); + FF(aa, bb, cc, dd, ee, block[ 5], 8); + FF(ee, aa, bb, cc, dd, block[ 6], 7); + FF(dd, ee, aa, bb, cc, block[ 7], 9); + FF(cc, dd, ee, aa, bb, block[ 8], 11); + FF(bb, cc, dd, ee, aa, block[ 9], 13); + FF(aa, bb, cc, dd, ee, block[10], 14); + FF(ee, aa, bb, cc, dd, block[11], 15); + FF(dd, ee, aa, bb, cc, block[12], 6); + FF(cc, dd, ee, aa, bb, block[13], 7); + FF(bb, cc, dd, ee, aa, block[14], 9); + FF(aa, bb, cc, dd, ee, block[15], 8); + + /* round 2 */ + GG(ee, aa, bb, cc, dd, block[ 7], 7); + GG(dd, ee, aa, bb, cc, block[ 4], 6); + GG(cc, dd, ee, aa, bb, block[13], 8); + GG(bb, cc, dd, ee, aa, block[ 1], 13); + GG(aa, bb, cc, dd, ee, block[10], 11); + GG(ee, aa, bb, cc, dd, block[ 6], 9); + GG(dd, ee, aa, bb, cc, block[15], 7); + GG(cc, dd, ee, aa, bb, block[ 3], 15); + GG(bb, cc, dd, ee, aa, block[12], 7); + GG(aa, bb, cc, dd, ee, block[ 0], 12); + GG(ee, aa, bb, cc, dd, block[ 9], 15); + GG(dd, ee, aa, bb, cc, block[ 5], 9); + GG(cc, dd, ee, aa, bb, block[ 2], 11); + GG(bb, cc, dd, ee, aa, block[14], 7); + GG(aa, bb, cc, dd, ee, block[11], 13); + GG(ee, aa, bb, cc, dd, block[ 8], 12); + + /* round 3 */ + HH(dd, ee, aa, bb, cc, block[ 3], 11); + HH(cc, dd, ee, aa, bb, block[10], 13); + HH(bb, cc, dd, ee, aa, block[14], 6); + HH(aa, bb, cc, dd, ee, block[ 4], 7); + HH(ee, aa, bb, cc, dd, block[ 9], 14); + HH(dd, ee, aa, bb, cc, block[15], 9); + HH(cc, dd, ee, aa, bb, block[ 8], 13); + HH(bb, cc, dd, ee, aa, block[ 1], 15); + HH(aa, bb, cc, dd, ee, block[ 2], 14); + HH(ee, aa, bb, cc, dd, block[ 7], 8); + HH(dd, ee, aa, bb, cc, block[ 0], 13); + HH(cc, dd, ee, aa, bb, block[ 6], 6); + HH(bb, cc, dd, ee, aa, block[13], 5); + HH(aa, bb, cc, dd, ee, block[11], 12); + HH(ee, aa, bb, cc, dd, block[ 5], 7); + HH(dd, ee, aa, bb, cc, block[12], 5); + + /* round 4 */ + II(cc, dd, ee, aa, bb, block[ 1], 11); + II(bb, cc, dd, ee, aa, block[ 9], 12); + II(aa, bb, cc, dd, ee, block[11], 14); + II(ee, aa, bb, cc, dd, block[10], 15); + II(dd, ee, aa, bb, cc, block[ 0], 14); + II(cc, dd, ee, aa, bb, block[ 8], 15); + II(bb, cc, dd, ee, aa, block[12], 9); + II(aa, bb, cc, dd, ee, block[ 4], 8); + II(ee, aa, bb, cc, dd, block[13], 9); + II(dd, ee, aa, bb, cc, block[ 3], 14); + II(cc, dd, ee, aa, bb, block[ 7], 5); + II(bb, cc, dd, ee, aa, block[15], 6); + II(aa, bb, cc, dd, ee, block[14], 8); + II(ee, aa, bb, cc, dd, block[ 5], 6); + II(dd, ee, aa, bb, cc, block[ 6], 5); + II(cc, dd, ee, aa, bb, block[ 2], 12); + + /* round 5 */ + JJ(bb, cc, dd, ee, aa, block[ 4], 9); + JJ(aa, bb, cc, dd, ee, block[ 0], 15); + JJ(ee, aa, bb, cc, dd, block[ 5], 5); + JJ(dd, ee, aa, bb, cc, block[ 9], 11); + JJ(cc, dd, ee, aa, bb, block[ 7], 6); + JJ(bb, cc, dd, ee, aa, block[12], 8); + JJ(aa, bb, cc, dd, ee, block[ 2], 13); + JJ(ee, aa, bb, cc, dd, block[10], 12); + JJ(dd, ee, aa, bb, cc, block[14], 5); + JJ(cc, dd, ee, aa, bb, block[ 1], 12); + JJ(bb, cc, dd, ee, aa, block[ 3], 13); + JJ(aa, bb, cc, dd, ee, block[ 8], 14); + JJ(ee, aa, bb, cc, dd, block[11], 11); + JJ(dd, ee, aa, bb, cc, block[ 6], 8); + JJ(cc, dd, ee, aa, bb, block[15], 5); + JJ(bb, cc, dd, ee, aa, block[13], 6); + + /* parallel round 1 */ + JJJ(aaa, bbb, ccc, ddd, eee, block[ 5], 8); + JJJ(eee, aaa, bbb, ccc, ddd, block[14], 9); + JJJ(ddd, eee, aaa, bbb, ccc, block[ 7], 9); + JJJ(ccc, ddd, eee, aaa, bbb, block[ 0], 11); + JJJ(bbb, ccc, ddd, eee, aaa, block[ 9], 13); + JJJ(aaa, bbb, ccc, ddd, eee, block[ 2], 15); + JJJ(eee, aaa, bbb, ccc, ddd, block[11], 15); + JJJ(ddd, eee, aaa, bbb, ccc, block[ 4], 5); + JJJ(ccc, ddd, eee, aaa, bbb, block[13], 7); + JJJ(bbb, ccc, ddd, eee, aaa, block[ 6], 7); + JJJ(aaa, bbb, ccc, ddd, eee, block[15], 8); + JJJ(eee, aaa, bbb, ccc, ddd, block[ 8], 11); + JJJ(ddd, eee, aaa, bbb, ccc, block[ 1], 14); + JJJ(ccc, ddd, eee, aaa, bbb, block[10], 14); + JJJ(bbb, ccc, ddd, eee, aaa, block[ 3], 12); + JJJ(aaa, bbb, ccc, ddd, eee, block[12], 6); + + /* parallel round 2 */ + III(eee, aaa, bbb, ccc, ddd, block[ 6], 9); + III(ddd, eee, aaa, bbb, ccc, block[11], 13); + III(ccc, ddd, eee, aaa, bbb, block[ 3], 15); + III(bbb, ccc, ddd, eee, aaa, block[ 7], 7); + III(aaa, bbb, ccc, ddd, eee, block[ 0], 12); + III(eee, aaa, bbb, ccc, ddd, block[13], 8); + III(ddd, eee, aaa, bbb, ccc, block[ 5], 9); + III(ccc, ddd, eee, aaa, bbb, block[10], 11); + III(bbb, ccc, ddd, eee, aaa, block[14], 7); + III(aaa, bbb, ccc, ddd, eee, block[15], 7); + III(eee, aaa, bbb, ccc, ddd, block[ 8], 12); + III(ddd, eee, aaa, bbb, ccc, block[12], 7); + III(ccc, ddd, eee, aaa, bbb, block[ 4], 6); + III(bbb, ccc, ddd, eee, aaa, block[ 9], 15); + III(aaa, bbb, ccc, ddd, eee, block[ 1], 13); + III(eee, aaa, bbb, ccc, ddd, block[ 2], 11); + + /* parallel round 3 */ + HHH(ddd, eee, aaa, bbb, ccc, block[15], 9); + HHH(ccc, ddd, eee, aaa, bbb, block[ 5], 7); + HHH(bbb, ccc, ddd, eee, aaa, block[ 1], 15); + HHH(aaa, bbb, ccc, ddd, eee, block[ 3], 11); + HHH(eee, aaa, bbb, ccc, ddd, block[ 7], 8); + HHH(ddd, eee, aaa, bbb, ccc, block[14], 6); + HHH(ccc, ddd, eee, aaa, bbb, block[ 6], 6); + HHH(bbb, ccc, ddd, eee, aaa, block[ 9], 14); + HHH(aaa, bbb, ccc, ddd, eee, block[11], 12); + HHH(eee, aaa, bbb, ccc, ddd, block[ 8], 13); + HHH(ddd, eee, aaa, bbb, ccc, block[12], 5); + HHH(ccc, ddd, eee, aaa, bbb, block[ 2], 14); + HHH(bbb, ccc, ddd, eee, aaa, block[10], 13); + HHH(aaa, bbb, ccc, ddd, eee, block[ 0], 13); + HHH(eee, aaa, bbb, ccc, ddd, block[ 4], 7); + HHH(ddd, eee, aaa, bbb, ccc, block[13], 5); + + /* parallel round 4 */ + GGG(ccc, ddd, eee, aaa, bbb, block[ 8], 15); + GGG(bbb, ccc, ddd, eee, aaa, block[ 6], 5); + GGG(aaa, bbb, ccc, ddd, eee, block[ 4], 8); + GGG(eee, aaa, bbb, ccc, ddd, block[ 1], 11); + GGG(ddd, eee, aaa, bbb, ccc, block[ 3], 14); + GGG(ccc, ddd, eee, aaa, bbb, block[11], 14); + GGG(bbb, ccc, ddd, eee, aaa, block[15], 6); + GGG(aaa, bbb, ccc, ddd, eee, block[ 0], 14); + GGG(eee, aaa, bbb, ccc, ddd, block[ 5], 6); + GGG(ddd, eee, aaa, bbb, ccc, block[12], 9); + GGG(ccc, ddd, eee, aaa, bbb, block[ 2], 12); + GGG(bbb, ccc, ddd, eee, aaa, block[13], 9); + GGG(aaa, bbb, ccc, ddd, eee, block[ 9], 12); + GGG(eee, aaa, bbb, ccc, ddd, block[ 7], 5); + GGG(ddd, eee, aaa, bbb, ccc, block[10], 15); + GGG(ccc, ddd, eee, aaa, bbb, block[14], 8); + + /* parallel round 5 */ + FFF(bbb, ccc, ddd, eee, aaa, block[12] , 8); + FFF(aaa, bbb, ccc, ddd, eee, block[15] , 5); + FFF(eee, aaa, bbb, ccc, ddd, block[10] , 12); + FFF(ddd, eee, aaa, bbb, ccc, block[ 4] , 9); + FFF(ccc, ddd, eee, aaa, bbb, block[ 1] , 12); + FFF(bbb, ccc, ddd, eee, aaa, block[ 5] , 5); + FFF(aaa, bbb, ccc, ddd, eee, block[ 8] , 14); + FFF(eee, aaa, bbb, ccc, ddd, block[ 7] , 6); + FFF(ddd, eee, aaa, bbb, ccc, block[ 6] , 8); + FFF(ccc, ddd, eee, aaa, bbb, block[ 2] , 13); + FFF(bbb, ccc, ddd, eee, aaa, block[13] , 6); + FFF(aaa, bbb, ccc, ddd, eee, block[14] , 5); + FFF(eee, aaa, bbb, ccc, ddd, block[ 0] , 15); + FFF(ddd, eee, aaa, bbb, ccc, block[ 3] , 13); + FFF(ccc, ddd, eee, aaa, bbb, block[ 9] , 11); + FFF(bbb, ccc, ddd, eee, aaa, block[11] , 11); + + /* combine results */ + ddd += cc + state[1]; /* final result for state[0] */ + state[1] = state[2] + dd + eee; + state[2] = state[3] + ee + aaa; + state[3] = state[4] + aa + bbb; + state[4] = state[0] + bb + ccc; + state[0] = ddd; +} + +/********************************************************************/ + +void RMD160Update(context, data, nbytes) + RMD160_CTX *context; + const u_char *data; + size_t nbytes; +{ + u_int32_t X[16]; + size_t i, j; + + (void)memset(X, 0, 16 * sizeof(u_int32_t)); + + /* process all complete blocks */ + for (i = 0; i < (nbytes >> 6); i++) { + for (j=0; j < 16; j++) + X[j] = BYTES_TO_DWORD(data + (64 * i) + (4 * j)); + RMD160Transform(context->state, X); + } + + /* update length[] */ + if (context->length[0] + nbytes < context->length[0]) + context->length[1]++; /* overflow to msb of length */ + context->length[0] += nbytes; + + /* + * Put bytes from data into context's buffer + */ + (void)memset(context->buffer, 0, 16 * sizeof(u_int32_t)); + /* extract bytes 6 to 10 inclusive */ + data += (context->length[0] & 0x3C0); + for (i = 0; i < (context->length[0] & 63); i++) { + /* byte i goes into word buffer[i div 4] at pos. 8*(i mod 4) */ + context->buffer[i>>2] ^= (u_int32_t) *data++ << (8 * (i & 3)); + } +} + +/********************************************************************/ + +void RMD160Final(digest, context) + u_char digest[20]; + RMD160_CTX *context; +{ + u_int32_t i; + + /* append the bit m_n == 1 */ + context->buffer[(context->length[0] >> 2) & 15] ^= + 1U << (8 * (context->length[0] & 3) + 7); + + if ((context->length[0] & 63) > 55) { + /* length goes to next block */ + RMD160Transform(context->state, context->buffer); + (void)memset(context->buffer, 0, 16 * sizeof(u_int32_t)); + } + + /* append length in bits */ + context->buffer[14] = context->length[0] << 3; + context->buffer[15] = (context->length[0] >> 29) | + (context->length[1] << 3); + RMD160Transform(context->state, context->buffer); + + for (i = 0; i < 20; i += 4) { + /* extracts the 8 least significant bits. */ + digest[i] = context->state[i>>2]; + digest[i + 1] = (context->state[i>>2] >> 8); + digest[i + 2] = (context->state[i>>2] >> 16); + digest[i + 3] = (context->state[i>>2] >> 24); + } +} + +/************************ end of file rmd160.c **********************/ diff --git a/lib/libc/hash/rmd160hl.c b/lib/libc/hash/rmd160hl.c new file mode 100644 index 00000000000..550ba421317 --- /dev/null +++ b/lib/libc/hash/rmd160hl.c @@ -0,0 +1,80 @@ +/* rmd160hl.c + * ---------------------------------------------------------------------------- + * "THE BEER-WARE LICENSE" (Revision 42): + * <phk@login.dkuug.dk> wrote this file. As long as you retain this notice you + * can do whatever you want with this stuff. If we meet some day, and you think + * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp + * ---------------------------------------------------------------------------- + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char rcsid[] = "$OpenBSD: rmd160hl.c,v 1.1 1997/07/17 05:37:01 millert Exp $"; +#endif /* LIBC_SCCS and not lint */ + +#include <stdlib.h> +#include <stdio.h> +#include <errno.h> +#include <sys/file.h> +#include <sys/types.h> +#include <sys/uio.h> +#include <unistd.h> +#include <rmd160.h> + +/* ARGSUSED */ +char * +RMD160End(ctx, buf) + RMD160_CTX *ctx; + char *buf; +{ + int i; + char *p = buf; + u_char digest[20]; + static const char hex[]="0123456789abcdef"; + + if (p == NULL && (p = malloc(41)) == NULL) + return 0; + + RMD160Final(digest,ctx); + for (i = 0; i < 20; i++) { + p[i + i] = hex[digest[i] >> 4]; + p[i + i + 1] = hex[digest[i] & 0x0f]; + } + p[i + i] = '\0'; + return(p); +} + +char * +RMD160File (filename, buf) + char *filename; + char *buf; +{ + u_char buffer[BUFSIZ]; + RMD160_CTX ctx; + int fd, num, oerrno; + + RMD160Init(&ctx); + + if ((fd = open(filename,O_RDONLY)) < 0) + return(0); + + while ((num = read(fd, buffer, sizeof(buffer))) > 0) + RMD160Update(&ctx, buffer, num); + + oerrno = errno; + close(fd); + errno = oerrno; + return(num < 0 ? 0 : RMD160End(&ctx, buf)); +} + +char * +RMD160Data (data, len, buf) + const u_char *data; + size_t len; + char *buf; +{ + RMD160_CTX ctx; + + RMD160Init(&ctx); + RMD160Update(&ctx, data, len); + return(RMD160End(&ctx, buf)); +} |