diff options
Diffstat (limited to 'lib/libskey/skeysubr.c')
| -rw-r--r-- | lib/libskey/skeysubr.c | 64 |
1 files changed, 61 insertions, 3 deletions
diff --git a/lib/libskey/skeysubr.c b/lib/libskey/skeysubr.c index 762a809c136..946d5a8cb12 100644 --- a/lib/libskey/skeysubr.c +++ b/lib/libskey/skeysubr.c @@ -10,7 +10,7 @@ * * S/KEY misc routines. * - * $Id: skeysubr.c,v 1.14 1997/07/11 01:32:57 millert Exp $ + * $Id: skeysubr.c,v 1.15 1997/07/17 05:48:38 millert Exp $ */ #include <stdio.h> @@ -22,6 +22,7 @@ #include <md4.h> #include <md5.h> #include <sha1.h> +#include <rmd160.h> #include "skey.h" @@ -33,9 +34,11 @@ static void f_md4 __P((char *x)); static void f_md5 __P((char *x)); static void f_sha1 __P((char *x)); +static void f_rmd160 __P((char *x)); static int keycrunch_md4 __P((char *result, char *seed, char *passwd)); static int keycrunch_md5 __P((char *result, char *seed, char *passwd)); static int keycrunch_sha1 __P((char *result, char *seed, char *passwd)); +static int keycrunch_rmd160 __P((char *result, char *seed, char *passwd)); static void lowcase __P((char *s)); static void skey_echo __P((int action)); static void trapped __P((int sig)); @@ -47,7 +50,7 @@ static int skey_hash_type = SKEY_HASH_DEFAULT; * Hash types we support. * Each has an associated keycrunch() and f() function. */ -#define SKEY_ALGORITH_LAST 3 +#define SKEY_ALGORITH_LAST 4 struct skey_algorithm_table { const char *name; int (*keycrunch) __P((char *, char *, char *)); @@ -56,7 +59,8 @@ struct skey_algorithm_table { static struct skey_algorithm_table skey_algorithm_table[] = { { "md4", keycrunch_md4, f_md4 }, { "md5", keycrunch_md5, f_md5 }, - { "sha1", keycrunch_sha1, f_sha1 } + { "sha1", keycrunch_sha1, f_sha1 }, + { "rmd160", keycrunch_rmd160, f_rmd160 } }; @@ -177,6 +181,41 @@ keycrunch_sha1(result, seed, passwd) return 0; } +static int +keycrunch_rmd160(result, seed, passwd) + char *result; /* SKEY_BINKEY_SIZE result */ + char *seed; /* Seed, any length */ + char *passwd; /* Password, any length */ +{ + char *buf; + RMD160_CTX rmd; + u_int32_t results[5]; + unsigned int buflen; + + buflen = strlen(seed) + strlen(passwd); + if ((buf = (char *)malloc(buflen+1)) == NULL) + return -1; + (void)strcpy(buf, seed); + lowcase(buf); + (void)strcat(buf, passwd); + + /* Crunch the key through RMD-160 */ + sevenbit(buf); + RMD160Init(&rmd); + RMD160Update(&rmd, (unsigned char *)buf, buflen); + RMD160Final((unsigned char *)results, &rmd); + (void)free(buf); + + /* Fold 160 to 64 bits */ + results[0] ^= results[2]; + results[1] ^= results[3]; + results[0] ^= results[4]; + + (void)memcpy((void *)result, (void *)results, SKEY_BINKEY_SIZE); + + return 0; +} + /* * The one-way function f(). * Takes SKEY_BINKEY_SIZE bytes and returns SKEY_BINKEY_SIZE bytes in place. @@ -243,6 +282,25 @@ f_sha1(x) (void)memcpy((void *)x, (void *)results, SKEY_BINKEY_SIZE); } +static void +f_rmd160(x) + char *x; +{ + RMD160_CTX rmd; + u_int32_t results[5]; + + RMD160Init(&rmd); + RMD160Update(&rmd, (unsigned char *)x, SKEY_BINKEY_SIZE); + RMD160Final((unsigned char *)results, &rmd); + + /* Fold 160 to 64 bits */ + results[0] ^= results[2]; + results[1] ^= results[3]; + results[0] ^= results[4]; + + (void)memcpy((void *)x, (void *)results, SKEY_BINKEY_SIZE); +} + /* Strip trailing cr/lf from a line of text */ void rip(buf) |