3 * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
4 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
8 * const struct berval *passwd,
9 * const struct berval *cred,
10 * const char **schemes )
12 * Returns true if user supplied credentials (cred) matches
13 * the stored password (passwd).
15 * Due to the use of the crypt(3) function
16 * this routine is NOT thread-safe.
22 #include <ac/stdlib.h>
23 #include <ac/string.h>
36 #include <ac/unistd.h>
45 #ifdef HAVE_AIX_SECURITY
51 #include "lutil_md5.h"
52 #include "lutil_sha1.h"
55 static const unsigned char crypt64[] =
56 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890./";
60 typedef int (*PASSWD_CHK_FUNC)(
61 const struct pw_scheme *scheme,
62 const struct berval *passwd,
63 const struct berval *cred );
65 typedef struct berval * (*PASSWD_HASH_FUNC) (
66 const struct pw_scheme *scheme,
67 const struct berval *passwd );
71 PASSWD_CHK_FUNC chk_fn;
72 PASSWD_HASH_FUNC hash_fn;
75 /* password check routines */
77 const struct pw_scheme *scheme,
78 const struct berval *passwd,
79 const struct berval *cred );
82 const struct pw_scheme *scheme,
83 const struct berval *passwd,
84 const struct berval *cred );
87 const struct pw_scheme *scheme,
88 const struct berval *passwd,
89 const struct berval *cred );
92 const struct pw_scheme *scheme,
93 const struct berval *passwd,
94 const struct berval *cred );
98 const struct pw_scheme *scheme,
99 const struct berval *passwd,
100 const struct berval *cred );
104 static int chk_kerberos(
105 const struct pw_scheme *scheme,
106 const struct berval *passwd,
107 const struct berval *cred );
111 static int chk_crypt(
112 const struct pw_scheme *scheme,
113 const struct berval *passwd,
114 const struct berval *cred );
116 #if defined( HAVE_GETSPNAM ) \
117 || ( defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD ) )
119 const struct pw_scheme *scheme,
120 const struct berval *passwd,
121 const struct berval *cred );
126 /* password hash routines */
127 static struct berval *hash_sha1(
128 const struct pw_scheme *scheme,
129 const struct berval *passwd );
131 static struct berval *hash_ssha1(
132 const struct pw_scheme *scheme,
133 const struct berval *passwd );
135 static struct berval *hash_smd5(
136 const struct pw_scheme *scheme,
137 const struct berval *passwd );
139 static struct berval *hash_md5(
140 const struct pw_scheme *scheme,
141 const struct berval *passwd );
144 static struct berval *hash_crypt(
145 const struct pw_scheme *scheme,
146 const struct berval *passwd );
150 static const struct pw_scheme pw_schemes[] =
152 { {sizeof("{SSHA}")-1, "{SSHA}"}, chk_ssha1, hash_ssha1 },
153 { {sizeof("{SHA}")-1, "{SHA}"}, chk_sha1, hash_sha1 },
155 { {sizeof("{SMD5}")-1, "{SMD5}"}, chk_smd5, hash_smd5 },
156 { {sizeof("{MD5}")-1, "{MD5}"}, chk_md5, hash_md5 },
159 { {sizeof("{SASL}")-1, "{SASL}"}, chk_sasl, NULL },
163 { {sizeof("{KERBEROS}")-1, "{KERBEROS}"}, chk_kerberos, NULL },
167 { {sizeof("{CRYPT}")-1, "{CRYPT}"}, chk_crypt, hash_crypt },
169 # if defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD )
170 { {sizeof("{UNIX}")-1, "{UNIX}"}, chk_unix, NULL },
174 #ifdef SLAPD_CLEARTEXT
176 { {0, "{CLEARTEXT}"}, NULL, NULL },
179 { {0, NULL}, NULL, NULL }
182 static const struct pw_scheme *get_scheme(
187 for( i=0; pw_schemes[i].name.bv_val; i++) {
188 if( pw_schemes[i].name.bv_len == 0 ) continue;
190 if( strncasecmp(scheme, pw_schemes[i].name.bv_val,
191 pw_schemes[i].name.bv_len) == 0 )
193 return &pw_schemes[i];
200 int lutil_passwd_scheme(
203 if( scheme == NULL ) {
207 return get_scheme(scheme) != NULL;
211 static int is_allowed_scheme(
213 const char** schemes )
217 if( schemes == NULL ) return 1;
219 for( i=0; schemes[i] != NULL; i++ ) {
220 if( strcasecmp( scheme, schemes[i] ) == 0 ) {
227 static struct berval *passwd_scheme(
228 const struct pw_scheme *scheme,
229 const struct berval * passwd,
230 const char** allowed )
232 if( !is_allowed_scheme( scheme->name.bv_val, allowed ) ) {
236 if( passwd->bv_len >= scheme->name.bv_len ) {
237 if( strncasecmp( passwd->bv_val, scheme->name.bv_val, scheme->name.bv_len ) == 0 ) {
238 struct berval *bv = ber_memalloc( sizeof(struct berval) );
240 if( bv == NULL ) return NULL;
242 bv->bv_val = &passwd->bv_val[scheme->name.bv_len];
243 bv->bv_len = passwd->bv_len - scheme->name.bv_len;
253 * Return 0 if creds are good.
257 const struct berval *passwd, /* stored passwd */
258 const struct berval *cred, /* user cred */
259 const char **schemes )
263 if (cred == NULL || cred->bv_len == 0 ||
264 passwd == NULL || passwd->bv_len == 0 )
269 for( i=0; pw_schemes[i].name.bv_val != NULL; i++ ) {
270 if( pw_schemes[i].chk_fn ) {
271 struct berval *p = passwd_scheme( &pw_schemes[i],
275 int rc = (pw_schemes[i].chk_fn)( &pw_schemes[i], p, cred );
277 /* only free the berval structure as the bv_val points
278 * into passwd->bv_val
287 #ifdef SLAPD_CLEARTEXT
288 if( is_allowed_scheme("{CLEARTEXT}", schemes ) ) {
289 return passwd->bv_len == cred->bv_len
290 ? memcmp( passwd->bv_val, cred->bv_val, passwd->bv_len )
299 struct berval * lutil_passwd_generate( ber_len_t len )
303 if( len < 1 ) return NULL;
305 pw = ber_memalloc( sizeof( struct berval ) );
306 if( pw == NULL ) return NULL;
309 pw->bv_val = ber_memalloc( len + 1 );
311 if( pw->bv_val == NULL ) {
316 if( lutil_entropy( pw->bv_val, pw->bv_len) < 0 ) {
321 for( len = 0; len < pw->bv_len; len++ ) {
322 pw->bv_val[len] = crypt64[
323 pw->bv_val[len] % (sizeof(crypt64)-1) ];
326 pw->bv_val[len] = '\0';
331 struct berval * lutil_passwd_hash(
332 const struct berval * passwd,
333 const char * method )
335 const struct pw_scheme *sc = get_scheme( method );
337 if( sc == NULL ) return NULL;
338 if( ! sc->hash_fn ) return NULL;
340 return (sc->hash_fn)( sc, passwd );
343 static struct berval * pw_string(
344 const struct pw_scheme *sc,
345 const struct berval *passwd )
347 struct berval *pw = ber_memalloc( sizeof( struct berval ) );
348 if( pw == NULL ) return NULL;
350 pw->bv_len = sc->name.bv_len + passwd->bv_len;
351 pw->bv_val = ber_memalloc( pw->bv_len + 1 );
353 if( pw->bv_val == NULL ) {
358 memcpy( pw->bv_val, sc->name.bv_val, sc->name.bv_len );
359 memcpy( &pw->bv_val[sc->name.bv_len], passwd->bv_val, passwd->bv_len );
361 pw->bv_val[pw->bv_len] = '\0';
365 static struct berval * pw_string64(
366 const struct pw_scheme *sc,
367 const struct berval *hash,
368 const struct berval *salt )
371 struct berval string;
372 struct berval *b64 = ber_memalloc( sizeof(struct berval) );
375 if( b64 == NULL ) return NULL;
378 /* need to base64 combined string */
379 string.bv_len = hash->bv_len + salt->bv_len;
380 string.bv_val = ber_memalloc( string.bv_len + 1 );
382 if( string.bv_val == NULL ) {
387 memcpy( string.bv_val, hash->bv_val,
389 memcpy( &string.bv_val[hash->bv_len], salt->bv_val,
391 string.bv_val[string.bv_len] = '\0';
397 b64len = LUTIL_BASE64_ENCODE_LEN( string.bv_len ) + 1;
398 b64->bv_len = b64len + sc->name.bv_len;
399 b64->bv_val = ber_memalloc( b64->bv_len + 1 );
401 if( b64->bv_val == NULL ) {
402 if( salt ) ber_memfree( string.bv_val );
407 memcpy(b64->bv_val, sc->name.bv_val, sc->name.bv_len);
410 string.bv_val, string.bv_len,
411 &b64->bv_val[sc->name.bv_len], b64len );
413 if( salt ) ber_memfree( string.bv_val );
420 /* recompute length */
421 b64->bv_len = sc->name.bv_len + rc;
422 assert( strlen(b64->bv_val) == b64->bv_len );
426 /* PASSWORD CHECK ROUTINES */
428 static int chk_ssha1(
429 const struct pw_scheme *sc,
430 const struct berval * passwd,
431 const struct berval * cred )
433 lutil_SHA1_CTX SHA1context;
434 unsigned char SHA1digest[LUTIL_SHA1_BYTES];
436 unsigned char *orig_pass = NULL;
438 /* decode base64 password */
439 orig_pass = (unsigned char *) ber_memalloc( (size_t) (
440 LUTIL_BASE64_DECODE_LEN(passwd->bv_len) + 1) );
442 if( orig_pass == NULL ) return -1;
444 rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
447 ber_memfree(orig_pass);
451 /* hash credentials with salt */
452 lutil_SHA1Init(&SHA1context);
453 lutil_SHA1Update(&SHA1context,
454 (const unsigned char *) cred->bv_val, cred->bv_len);
455 lutil_SHA1Update(&SHA1context,
456 (const unsigned char *) &orig_pass[sizeof(SHA1digest)],
457 rc - sizeof(SHA1digest));
458 lutil_SHA1Final(SHA1digest, &SHA1context);
461 rc = memcmp((char *)orig_pass, (char *)SHA1digest, sizeof(SHA1digest));
462 ber_memfree(orig_pass);
467 const struct pw_scheme *sc,
468 const struct berval * passwd,
469 const struct berval * cred )
471 lutil_SHA1_CTX SHA1context;
472 unsigned char SHA1digest[LUTIL_SHA1_BYTES];
474 unsigned char *orig_pass = NULL;
476 /* base64 un-encode password */
477 orig_pass = (unsigned char *) ber_memalloc( (size_t) (
478 LUTIL_BASE64_DECODE_LEN(passwd->bv_len) + 1) );
480 if( orig_pass == NULL ) return -1;
482 rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
484 if( rc != sizeof(SHA1digest) ) {
485 ber_memfree(orig_pass);
489 /* hash credentials with salt */
490 lutil_SHA1Init(&SHA1context);
491 lutil_SHA1Update(&SHA1context,
492 (const unsigned char *) cred->bv_val, cred->bv_len);
493 lutil_SHA1Final(SHA1digest, &SHA1context);
496 rc = memcmp((char *)orig_pass, (char *)SHA1digest, sizeof(SHA1digest));
497 ber_memfree(orig_pass);
502 const struct pw_scheme *sc,
503 const struct berval * passwd,
504 const struct berval * cred )
506 lutil_MD5_CTX MD5context;
507 unsigned char MD5digest[LUTIL_MD5_BYTES];
509 unsigned char *orig_pass = NULL;
511 /* base64 un-encode password */
512 orig_pass = (unsigned char *) ber_memalloc( (size_t) (
513 LUTIL_BASE64_DECODE_LEN(passwd->bv_len) + 1) );
515 if( orig_pass == NULL ) return -1;
517 rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
519 ber_memfree(orig_pass);
523 /* hash credentials with salt */
524 lutil_MD5Init(&MD5context);
525 lutil_MD5Update(&MD5context,
526 (const unsigned char *) cred->bv_val, cred->bv_len );
527 lutil_MD5Update(&MD5context,
528 (const unsigned char *) &orig_pass[sizeof(MD5digest)],
529 rc - sizeof(MD5digest));
530 lutil_MD5Final(MD5digest, &MD5context);
533 rc = memcmp((char *)orig_pass, (char *)MD5digest, sizeof(MD5digest));
534 ber_memfree(orig_pass);
539 const struct pw_scheme *sc,
540 const struct berval * passwd,
541 const struct berval * cred )
543 lutil_MD5_CTX MD5context;
544 unsigned char MD5digest[LUTIL_MD5_BYTES];
546 unsigned char *orig_pass = NULL;
548 /* base64 un-encode password */
549 orig_pass = (unsigned char *) ber_memalloc( (size_t) (
550 LUTIL_BASE64_DECODE_LEN(passwd->bv_len) + 1) );
552 if( orig_pass == NULL ) return -1;
554 rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
555 if ( rc != sizeof(MD5digest) ) {
556 ber_memfree(orig_pass);
560 /* hash credentials with salt */
561 lutil_MD5Init(&MD5context);
562 lutil_MD5Update(&MD5context,
563 (const unsigned char *) cred->bv_val, cred->bv_len );
564 lutil_MD5Final(MD5digest, &MD5context);
567 rc = memcmp((char *)orig_pass, (char *)MD5digest, sizeof(MD5digest));
568 ber_memfree(orig_pass);
573 #ifdef HAVE_CYRUS_SASL
574 sasl_conn_t *lutil_passwd_sasl_conn = NULL;
578 const struct pw_scheme *sc,
579 const struct berval * passwd,
580 const struct berval * cred )
585 for( i=0; i<cred->bv_len; i++) {
586 if(cred->bv_val[i] == '\0') {
587 return 1; /* NUL character in password */
591 if( cred->bv_val[i] != '\0' ) {
592 return 1; /* cred must behave like a string */
595 for( i=0; i<passwd->bv_len; i++) {
596 if(passwd->bv_val[i] == '\0') {
597 return 1; /* NUL character in password */
601 if( passwd->bv_val[i] != '\0' ) {
602 return 1; /* passwd must behave like a string */
607 #ifdef HAVE_CYRUS_SASL
608 if( lutil_passwd_sasl_conn != NULL ) {
609 const char *errstr = NULL;
612 sc = sasl_checkpass( lutil_passwd_sasl_conn,
613 passwd->bv_val, passwd->bv_len,
614 cred->bv_val, cred->bv_len,
617 rtn = ( sc != SASL_OK );
626 static int chk_kerberos(
627 const struct pw_scheme *sc,
628 const struct berval * passwd,
629 const struct berval * cred )
634 for( i=0; i<cred->bv_len; i++) {
635 if(cred->bv_val[i] == '\0') {
636 return 1; /* NUL character in password */
640 if( cred->bv_val[i] != '\0' ) {
641 return 1; /* cred must behave like a string */
644 for( i=0; i<passwd->bv_len; i++) {
645 if(passwd->bv_val[i] == '\0') {
646 return 1; /* NUL character in password */
650 if( passwd->bv_val[i] != '\0' ) {
651 return 1; /* passwd must behave like a string */
656 #ifdef HAVE_KRB5 /* HAVE_HEIMDAL_KRB5 */
659 * Copyright (c) 1997, 1998, 1999 Kungliga Tekniska H\xf6gskolan
660 * (Royal Institute of Technology, Stockholm, Sweden).
661 * All rights reserved.
663 * Redistribution and use in source and binary forms, with or without
664 * modification, are permitted provided that the following conditions
667 * 1. Redistributions of source code must retain the above copyright
668 * notice, this list of conditions and the following disclaimer.
670 * 2. Redistributions in binary form must reproduce the above copyright
671 * notice, this list of conditions and the following disclaimer in the
672 * documentation and/or other materials provided with the distribution.
674 * 3. Neither the name of the Institute nor the names of its contributors
675 * may be used to endorse or promote products derived from this software
676 * without specific prior written permission.
678 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
679 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
680 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
681 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
682 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
683 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
684 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
685 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
686 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
687 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
691 krb5_context context;
694 krb5_get_init_creds_opt get_options;
695 krb5_verify_init_creds_opt verify_options;
696 krb5_principal client, server;
698 krb5_preauthtype pre_auth_types[] = {KRB5_PADATA_ENC_TIMESTAMP};
701 ret = krb5_init_context( &context );
707 krb5_get_init_creds_opt_set_preauth_list(&get_options,
711 krb5_get_init_creds_opt_init( &get_options );
713 krb5_verify_init_creds_opt_init( &verify_options );
715 ret = krb5_parse_name( context, passwd->bv_val, &client );
718 krb5_free_context( context );
722 ret = krb5_get_init_creds_password( context,
723 &creds, client, cred->bv_val, NULL,
724 NULL, 0, NULL, &get_options );
727 krb5_free_principal( context, client );
728 krb5_free_context( context );
733 char host[MAXHOSTNAMELEN];
735 if( gethostname( host, MAXHOSTNAMELEN ) != 0 ) {
736 krb5_free_principal( context, client );
737 krb5_free_context( context );
741 ret = krb5_sname_to_principal( context,
742 host, "ldap", KRB5_NT_SRV_HST, &server );
746 krb5_free_principal( context, client );
747 krb5_free_context( context );
751 ret = krb5_verify_init_creds( context,
752 &creds, server, NULL, NULL, &verify_options );
754 krb5_free_principal( context, client );
755 krb5_free_principal( context, server );
756 krb5_free_creds_contents( context, &creds );
757 krb5_free_context( context );
761 #elif defined(HAVE_KRB4)
763 /* Borrowed from Heimdal kpopper */
765 * Copyright (c) 1989 Regents of the University of California.
766 * All rights reserved. The Berkeley software License Agreement
767 * specifies the terms and conditions for redistribution.
771 char lrealm[REALM_SZ];
772 char tkt[MAXHOSTNAMELEN];
774 status = krb_get_lrealm(lrealm,1);
775 if (status == KFAILURE) {
779 snprintf(tkt, sizeof(tkt), "%s_slapd.%u",
780 TKT_ROOT, (unsigned)getpid());
781 krb_set_tkt_string (tkt);
783 status = krb_verify_user( passwd->bv_val, "", lrealm,
784 cred->bv_val, 1, "ldap");
786 dest_tkt(); /* no point in keeping the tickets */
788 return status == KFAILURE;
794 #endif /* SLAPD_KPASSWD */
797 static int chk_crypt(
798 const struct pw_scheme *sc,
799 const struct berval * passwd,
800 const struct berval * cred )
805 for( i=0; i<cred->bv_len; i++) {
806 if(cred->bv_val[i] == '\0') {
807 return 1; /* NUL character in password */
811 if( cred->bv_val[i] != '\0' ) {
812 return -1; /* cred must behave like a string */
815 if( passwd->bv_len < 2 ) {
816 return -1; /* passwd must be at least two characters long */
819 for( i=0; i<passwd->bv_len; i++) {
820 if(passwd->bv_val[i] == '\0') {
821 return -1; /* NUL character in password */
825 if( passwd->bv_val[i] != '\0' ) {
826 return -1; /* passwd must behave like a string */
829 cr = crypt( cred->bv_val, passwd->bv_val );
831 if( cr == NULL || cr[0] == '\0' ) {
832 /* salt must have been invalid */
836 return strcmp( passwd->bv_val, cr ) ? 1 : 0;
839 # if defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD )
841 const struct pw_scheme *sc,
842 const struct berval * passwd,
843 const struct berval * cred )
848 for( i=0; i<cred->bv_len; i++) {
849 if(cred->bv_val[i] == '\0') {
850 return -1; /* NUL character in password */
853 if( cred->bv_val[i] != '\0' ) {
854 return -1; /* cred must behave like a string */
857 for( i=0; i<passwd->bv_len; i++) {
858 if(passwd->bv_val[i] == '\0') {
859 return -1; /* NUL character in password */
863 if( passwd->bv_val[i] != '\0' ) {
864 return -1; /* passwd must behave like a string */
868 struct passwd *pwd = getpwnam(passwd->bv_val);
871 return -1; /* not found */
876 # ifdef HAVE_GETSPNAM
878 struct spwd *spwd = getspnam(passwd->bv_val);
885 # ifdef HAVE_AIX_SECURITY
887 struct userpw *upw = getuserpw(passwd->bv_val);
890 pw = upw->upw_passwd;
895 if( pw == NULL || pw[0] == '\0' || pw[1] == '\0' ) {
896 /* password must must be at least two characters long */
900 cr = crypt(cred->bv_val, pw);
902 if( cr == NULL || cr[0] == '\0' ) {
903 /* salt must have been invalid */
907 return strcmp(pw, cr) ? 1 : 0;
913 /* PASSWORD GENERATION ROUTINES */
915 static struct berval *hash_ssha1(
916 const struct pw_scheme *scheme,
917 const struct berval *passwd )
919 lutil_SHA1_CTX SHA1context;
920 unsigned char SHA1digest[LUTIL_SHA1_BYTES];
921 unsigned char saltdata[4];
922 struct berval digest;
925 digest.bv_val = SHA1digest;
926 digest.bv_len = sizeof(SHA1digest);
927 salt.bv_val = saltdata;
928 salt.bv_len = sizeof(saltdata);
930 if( lutil_entropy( salt.bv_val, salt.bv_len) < 0 ) {
934 lutil_SHA1Init( &SHA1context );
935 lutil_SHA1Update( &SHA1context,
936 (const unsigned char *)passwd->bv_val, passwd->bv_len );
937 lutil_SHA1Update( &SHA1context,
938 (const unsigned char *)salt.bv_val, salt.bv_len );
939 lutil_SHA1Final( SHA1digest, &SHA1context );
941 return pw_string64( scheme, &digest, &salt);
944 static struct berval *hash_sha1(
945 const struct pw_scheme *scheme,
946 const struct berval *passwd )
948 lutil_SHA1_CTX SHA1context;
949 unsigned char SHA1digest[20];
950 struct berval digest;
951 digest.bv_val = SHA1digest;
952 digest.bv_len = sizeof(SHA1digest);
954 lutil_SHA1Init( &SHA1context );
955 lutil_SHA1Update( &SHA1context,
956 (const unsigned char *)passwd->bv_val, passwd->bv_len );
957 lutil_SHA1Final( SHA1digest, &SHA1context );
959 return pw_string64( scheme, &digest, NULL);
962 static struct berval *hash_smd5(
963 const struct pw_scheme *scheme,
964 const struct berval *passwd )
966 lutil_MD5_CTX MD5context;
967 unsigned char MD5digest[16];
968 unsigned char saltdata[4];
969 struct berval digest;
972 digest.bv_val = MD5digest;
973 digest.bv_len = sizeof(MD5digest);
974 salt.bv_val = saltdata;
975 salt.bv_len = sizeof(saltdata);
977 if( lutil_entropy( salt.bv_val, salt.bv_len) < 0 ) {
981 lutil_MD5Init( &MD5context );
982 lutil_MD5Update( &MD5context,
983 (const unsigned char *) passwd->bv_val, passwd->bv_len );
984 lutil_MD5Update( &MD5context,
985 (const unsigned char *) salt.bv_val, salt.bv_len );
986 lutil_MD5Final( MD5digest, &MD5context );
988 return pw_string64( scheme, &digest, &salt );
991 static struct berval *hash_md5(
992 const struct pw_scheme *scheme,
993 const struct berval *passwd )
995 lutil_MD5_CTX MD5context;
996 unsigned char MD5digest[16];
998 struct berval digest;
1000 digest.bv_val = MD5digest;
1001 digest.bv_len = sizeof(MD5digest);
1003 lutil_MD5Init( &MD5context );
1004 lutil_MD5Update( &MD5context,
1005 (const unsigned char *) passwd->bv_val, passwd->bv_len );
1006 lutil_MD5Final( MD5digest, &MD5context );
1008 return pw_string64( scheme, &digest, NULL );
1013 static struct berval *hash_crypt(
1014 const struct pw_scheme *scheme,
1015 const struct berval *passwd )
1018 unsigned char salt[3];
1021 for( i=0; i<passwd->bv_len; i++) {
1022 if(passwd->bv_val[i] == '\0') {
1023 return NULL; /* NUL character in password */
1027 if( passwd->bv_val[i] != '\0' ) {
1028 return NULL; /* passwd must behave like a string */
1031 if( lutil_entropy( salt, sizeof(salt)) < 0 ) {
1035 salt[0] = crypt64[ salt[0] % (sizeof(crypt64)-1) ];
1036 salt[1] = crypt64[ salt[1] % (sizeof(crypt64)-1) ];
1039 hash.bv_val = crypt( passwd->bv_val, salt );
1041 if( hash.bv_val == NULL ) return NULL;
1043 hash.bv_len = strlen( hash.bv_val );
1045 if( hash.bv_len == 0 ) {
1049 return pw_string( scheme, &hash );