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Added salted MD5 and SHA support. (SSHA,SMD5)

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This commit is contained in:
Dave Storey 1998-12-30 05:32:17 +00:00
parent 22e3ddaad4
commit 2ee0dcfc0a
1 changed files with 62 additions and 0 deletions
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62
libraries/liblutil/passwd.c
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@ -10,6 +10,8 @@
#include "portable.h"
#include <stdlib.h>
#include <ac/string.h>
#include <ac/unistd.h>
@ -70,6 +72,66 @@ lutil_passwd(
return( strcmp(p, base64digest) );
} else if (strncasecmp(passwd, "{SSHA}", sizeof("{SSHA}") - 1) == 0) {
lutil_SHA1_CTX SHA1context;
unsigned char SHA1digest[20];
const char *p = passwd + (sizeof("{SSHA}") - 1);
int pw_len = strlen(p);
int rc;
unsigned char *orig_pass = NULL;
/* base64 un-encode password */
orig_pass = (unsigned char *)malloc(pw_len * 0.75 + 1);
if ((rc = lutil_b64_pton(p, orig_pass, pw_len)) < 0)
{
free(orig_pass);
return ( 1 );
}
/* hash credentials with salt */
lutil_SHA1Init(&SHA1context);
lutil_SHA1Update(&SHA1context,
(const unsigned char *) cred, strlen(cred));
lutil_SHA1Update(&SHA1context,
(const unsigned char *) orig_pass + sizeof(SHA1digest),
rc - sizeof(SHA1digest));
lutil_SHA1Final(SHA1digest, &SHA1context);
/* compare */
rc = strncmp((char *)orig_pass, (char *)SHA1digest, sizeof(SHA1digest));
free(orig_pass);
return(rc);
} else if (strncasecmp(passwd, "{SMD5}", sizeof("{SMD5}") - 1) == 0) {
lutil_MD5_CTX MD5context;
unsigned char MD5digest[16];
const char *p = passwd + (sizeof("{SMD5}") - 1);
int pw_len = strlen(p);
int rc;
unsigned char *orig_pass = NULL;
/* base64 un-encode password */
orig_pass = (unsigned char *)malloc(pw_len * 0.75 + 1);
if ((rc = lutil_b64_pton(p, orig_pass, pw_len)) < 0)
{
free(orig_pass);
return ( 1 );
}
/* hash credentials with salt */
lutil_MD5Init(&MD5context);
lutil_MD5Update(&MD5context,
(const unsigned char *) cred, strlen(cred));
lutil_MD5Update(&MD5context,
(const unsigned char *) orig_pass + sizeof(MD5digest),
rc - sizeof(MD5digest));
lutil_MD5Final(MD5digest, &MD5context);
/* compare */
rc = strncmp((char *)orig_pass, (char *)MD5digest, sizeof(MD5digest));
free(orig_pass);
return ( rc );
#ifdef SLAPD_CRYPT
} else if (strncasecmp(passwd, "{CRYPT}", sizeof("{CRYPT}") - 1) == 0 ) {
const char *p = passwd + (sizeof("{CRYPT}") - 1);