diff options
Diffstat (limited to 'mdk-stage1/dietlibc/libcrypt/md5crypt.c')
| -rw-r--r-- | mdk-stage1/dietlibc/libcrypt/md5crypt.c | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/mdk-stage1/dietlibc/libcrypt/md5crypt.c b/mdk-stage1/dietlibc/libcrypt/md5crypt.c deleted file mode 100644 index ebbb4be44..000000000 --- a/mdk-stage1/dietlibc/libcrypt/md5crypt.c +++ /dev/null @@ -1,157 +0,0 @@ -/* $OpenBSD: md5crypt.c,v 1.9 1997/07/23 20:58:27 kstailey Exp $ */ - -/* - * ---------------------------------------------------------------------------- - * "THE BEER-WARE LICENSE" (Revision 42): - * <phk@login.dknet.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 - * ---------------------------------------------------------------------------- - * - * $FreeBSD: crypt.c,v 1.5 1996/10/14 08:34:02 phk Exp $ - * - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char rcsid[] = "$OpenBSD: md5crypt.c,v 1.9 1997/07/23 20:58:27 kstailey Exp $"; -#endif /* LIBC_SCCS and not lint */ - -#include <unistd.h> -#include <stdio.h> -#include <string.h> -#include <md5.h> - -static unsigned char itoa64[] = /* 0 ... 63 => ascii - 64 */ - "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; - -static void to64 (char *, uint32_t, int); - -static void -to64(s, v, n) - char *s; - uint32_t v; - int n; -{ - while (--n >= 0) { - *s++ = itoa64[v&0x3f]; - v >>= 6; - } -} - -/* - * UNIX password - * - * Use MD5 for what it is best at... - */ - -char * -md5crypt(pw, salt) - register const char *pw; - register const char *salt; -{ - /* - * This string is magic for this algorithm. Having - * it this way, we can get get better later on - */ - static unsigned char *magic = (unsigned char *)"$1$"; - - static char passwd[120], *p; - static const unsigned char *sp,*ep; - unsigned char final[16]; - int sl,pl,i; - MD5_CTX ctx,ctx1; - uint32_t l; - - /* Refine the Salt first */ - sp = (const unsigned char *)salt; - - /* If it starts with the magic string, then skip that */ - if(!strncmp((const char *)sp,(const char *)magic,strlen((const char *)magic))) - sp += strlen((const char *)magic); - - /* It stops at the first '$', max 8 chars */ - for(ep=sp;*ep && *ep != '$' && ep < (sp+8);ep++) - continue; - - /* get the length of the true salt */ - sl = ep - sp; - - MD5Init(&ctx); - - /* The password first, since that is what is most unknown */ - MD5Update(&ctx,(const unsigned char *)pw,strlen(pw)); - - /* Then our magic string */ - MD5Update(&ctx,magic,strlen((const char *)magic)); - - /* Then the raw salt */ - MD5Update(&ctx,sp,sl); - - /* Then just as many characters of the MD5(pw,salt,pw) */ - MD5Init(&ctx1); - MD5Update(&ctx1,(const unsigned char *)pw,strlen(pw)); - MD5Update(&ctx1,sp,sl); - MD5Update(&ctx1,(const unsigned char *)pw,strlen(pw)); - MD5Final(final,&ctx1); - for(pl = strlen(pw); pl > 0; pl -= 16) - MD5Update(&ctx,final,pl>16 ? 16 : pl); - - /* Don't leave anything around in vm they could use. */ - memset(final,0,sizeof final); - - /* Then something really weird... */ - for (i = strlen(pw); i ; i >>= 1) - if(i&1) - MD5Update(&ctx, final, 1); - else - MD5Update(&ctx, (const unsigned char *)pw, 1); - - /* Now make the output string */ - strcpy(passwd,(const char *)magic); - memcpy(passwd+3,sp,sl); - passwd[sl+3]='$'; - passwd[sl+4]=0; - - MD5Final(final,&ctx); - - /* - * and now, just to make sure things don't run too fast - * On a 60 Mhz Pentium this takes 34 msec, so you would - * need 30 seconds to build a 1000 entry dictionary... - */ - for(i=0;i<1000;i++) { - MD5Init(&ctx1); - if(i & 1) - MD5Update(&ctx1,(const unsigned char *)pw,strlen(pw)); - else - MD5Update(&ctx1,final,16); - - if(i % 3) - MD5Update(&ctx1,sp,sl); - - if(i % 7) - MD5Update(&ctx1,(const unsigned char *)pw,strlen(pw)); - - if(i & 1) - MD5Update(&ctx1,final,16); - else - MD5Update(&ctx1,(const unsigned char *)pw,strlen(pw)); - MD5Final(final,&ctx1); - } - - p = passwd + strlen(passwd); - - l = (final[ 0]<<16) | (final[ 6]<<8) | final[12]; to64(p,l,4); p += 4; - l = (final[ 1]<<16) | (final[ 7]<<8) | final[13]; to64(p,l,4); p += 4; - l = (final[ 2]<<16) | (final[ 8]<<8) | final[14]; to64(p,l,4); p += 4; - l = (final[ 3]<<16) | (final[ 9]<<8) | final[15]; to64(p,l,4); p += 4; - l = (final[ 4]<<16) | (final[10]<<8) | final[ 5]; to64(p,l,4); p += 4; - l = final[11] ; to64(p,l,2); p += 2; - *p = '\0'; - - /* Don't leave anything around in vm they could use. */ - memset(final,0,sizeof final); - - return passwd; -} - |