diff options
Diffstat (limited to 'security/nss/lib/softoken/keydb.c')
| -rw-r--r-- | security/nss/lib/softoken/keydb.c | 2308 |
1 files changed, 0 insertions, 2308 deletions
diff --git a/security/nss/lib/softoken/keydb.c b/security/nss/lib/softoken/keydb.c deleted file mode 100644 index e224c18d9..000000000 --- a/security/nss/lib/softoken/keydb.c +++ /dev/null @@ -1,2308 +0,0 @@ -/* - * The contents of this file are subject to the Mozilla Public - * License Version 1.1 (the "License"); you may not use this file - * except in compliance with the License. You may obtain a copy of - * the License at http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS - * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or - * implied. See the License for the specific language governing - * rights and limitations under the License. - * - * The Original Code is the Netscape security libraries. - * - * The Initial Developer of the Original Code is Netscape - * Communications Corporation. Portions created by Netscape are - * Copyright (C) 1994-2000 Netscape Communications Corporation. All - * Rights Reserved. - * - * Contributor(s): - * - * Alternatively, the contents of this file may be used under the - * terms of the GNU General Public License Version 2 or later (the - * "GPL"), in which case the provisions of the GPL are applicable - * instead of those above. If you wish to allow use of your - * version of this file only under the terms of the GPL and not to - * allow others to use your version of this file under the MPL, - * indicate your decision by deleting the provisions above and - * replace them with the notice and other provisions required by - * the GPL. If you do not delete the provisions above, a recipient - * may use your version of this file under either the MPL or the - * GPL. - * - * Private Key Database code - * - * $Id$ - */ - -#include "keylow.h" -#include "keydbt.h" -#include "seccomon.h" -#include "sechash.h" -#include "secder.h" -#include "secasn1.h" -#include "secoid.h" -#include "blapi.h" -#include "secitem.h" -#include "cert.h" -#include "mcom_db.h" -#include "secpkcs5.h" -#include "secerr.h" - -#include "private.h" - -/* - * Record keys for keydb - */ -#define SALT_STRING "global-salt" -#define VERSION_STRING "Version" -#define KEYDB_PW_CHECK_STRING "password-check" -#define KEYDB_PW_CHECK_LEN 14 - -/* Size of the global salt for key database */ -#define SALT_LENGTH 16 - -/* ASN1 Templates for new decoder/encoder */ -/* - * Attribute value for PKCS8 entries (static?) - */ -const SEC_ASN1Template SECKEY_AttributeTemplate[] = { - { SEC_ASN1_SEQUENCE, - 0, NULL, sizeof(SECKEYAttribute) }, - { SEC_ASN1_OBJECT_ID, offsetof(SECKEYAttribute, attrType) }, - { SEC_ASN1_SET_OF, offsetof(SECKEYAttribute, attrValue), - SEC_AnyTemplate }, - { 0 } -}; - -const SEC_ASN1Template SECKEY_SetOfAttributeTemplate[] = { - { SEC_ASN1_SET_OF, 0, SECKEY_AttributeTemplate }, -}; - -const SEC_ASN1Template SECKEY_PrivateKeyInfoTemplate[] = { - { SEC_ASN1_SEQUENCE, - 0, NULL, sizeof(SECKEYPrivateKeyInfo) }, - { SEC_ASN1_INTEGER, - offsetof(SECKEYPrivateKeyInfo,version) }, - { SEC_ASN1_INLINE, - offsetof(SECKEYPrivateKeyInfo,algorithm), - SECOID_AlgorithmIDTemplate }, - { SEC_ASN1_OCTET_STRING, - offsetof(SECKEYPrivateKeyInfo,privateKey) }, - { SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED | SEC_ASN1_CONTEXT_SPECIFIC | 0, - offsetof(SECKEYPrivateKeyInfo,attributes), - SECKEY_SetOfAttributeTemplate }, - { 0 } -}; - -const SEC_ASN1Template SECKEY_PointerToPrivateKeyInfoTemplate[] = { - { SEC_ASN1_POINTER, 0, SECKEY_PrivateKeyInfoTemplate } -}; - -const SEC_ASN1Template SECKEY_EncryptedPrivateKeyInfoTemplate[] = { - { SEC_ASN1_SEQUENCE, - 0, NULL, sizeof(SECKEYEncryptedPrivateKeyInfo) }, - { SEC_ASN1_INLINE, - offsetof(SECKEYEncryptedPrivateKeyInfo,algorithm), - SECOID_AlgorithmIDTemplate }, - { SEC_ASN1_OCTET_STRING, - offsetof(SECKEYEncryptedPrivateKeyInfo,encryptedData) }, - { 0 } -}; - -const SEC_ASN1Template SECKEY_PointerToEncryptedPrivateKeyInfoTemplate[] = { - { SEC_ASN1_POINTER, 0, SECKEY_EncryptedPrivateKeyInfoTemplate } -}; - -/* ====== Default key databse encryption algorithm ====== */ - -static SECOidTag defaultKeyDBAlg = SEC_OID_PKCS12_PBE_WITH_SHA1_AND_TRIPLE_DES_CBC; - -/* - * Default algorithm for encrypting data in the key database - */ -SECOidTag -SECKEY_GetDefaultKeyDBAlg(void) -{ - return(defaultKeyDBAlg); -} - -void -SECKEY_SetDefaultKeyDBAlg(SECOidTag alg) -{ - defaultKeyDBAlg = alg; - - return; -} - -static void -sec_destroy_dbkey(SECKEYDBKey *dbkey) -{ - if ( dbkey && dbkey->arena ) { - PORT_FreeArena(dbkey->arena, PR_FALSE); - } -} - -static void -free_dbt(DBT *dbt) -{ - if ( dbt ) { - PORT_Free(dbt->data); - PORT_Free(dbt); - } - - return; -} - -/* - * format of key database entries for version 3 of database: - * byte offset field - * ----------- ----- - * 0 version - * 1 salt-len - * 2 nn-len - * 3.. salt-data - * ... nickname - * ... encrypted-key-data - */ -static DBT * -encode_dbkey(SECKEYDBKey *dbkey) -{ - DBT *bufitem = NULL; - unsigned char *buf; - int nnlen; - char *nn; - - bufitem = (DBT *)PORT_ZAlloc(sizeof(DBT)); - if ( bufitem == NULL ) { - goto loser; - } - - if ( dbkey->nickname ) { - nn = dbkey->nickname; - nnlen = PORT_Strlen(nn) + 1; - } else { - nn = ""; - nnlen = 1; - } - - /* compute the length of the record */ - /* 1 + 1 + 1 == version number header + salt length + nn len */ - bufitem->size = dbkey->salt.len + nnlen + dbkey->derPK.len + 1 + 1 + 1; - - bufitem->data = (void *)PORT_ZAlloc(bufitem->size); - if ( bufitem->data == NULL ) { - goto loser; - } - - buf = (unsigned char *)bufitem->data; - - /* set version number */ - buf[0] = PRIVATE_KEY_DB_FILE_VERSION; - - /* set length of salt */ - PORT_Assert(dbkey->salt.len < 256); - buf[1] = dbkey->salt.len; - - /* set length of nickname */ - PORT_Assert(nnlen < 256); - buf[2] = nnlen; - - /* copy salt */ - PORT_Memcpy(&buf[3], dbkey->salt.data, dbkey->salt.len); - - /* copy nickname */ - PORT_Memcpy(&buf[3 + dbkey->salt.len], nn, nnlen); - - /* copy encrypted key */ - PORT_Memcpy(&buf[3 + dbkey->salt.len + nnlen], dbkey->derPK.data, - dbkey->derPK.len); - - return(bufitem); - -loser: - if ( bufitem ) { - free_dbt(bufitem); - } - - return(NULL); -} - -static SECKEYDBKey * -decode_dbkey(DBT *bufitem, int expectedVersion) -{ - SECKEYDBKey *dbkey; - PLArenaPool *arena = NULL; - unsigned char *buf; - int version; - int keyoff; - int nnlen; - int saltoff; - - buf = (unsigned char *)bufitem->data; - - version = buf[0]; - - if ( version != expectedVersion ) { - goto loser; - } - - arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); - if ( arena == NULL ) { - goto loser; - } - - dbkey = (SECKEYDBKey *)PORT_ArenaZAlloc(arena, sizeof(SECKEYDBKey)); - if ( dbkey == NULL ) { - goto loser; - } - - dbkey->arena = arena; - dbkey->salt.data = NULL; - dbkey->derPK.data = NULL; - - dbkey->salt.len = buf[1]; - dbkey->salt.data = (unsigned char *)PORT_ArenaZAlloc(arena, dbkey->salt.len); - if ( dbkey->salt.data == NULL ) { - goto loser; - } - - saltoff = 2; - keyoff = 2 + dbkey->salt.len; - - if ( expectedVersion == PRIVATE_KEY_DB_FILE_VERSION ) { - nnlen = buf[2]; - if ( nnlen ) { - dbkey->nickname = (char *)PORT_ArenaZAlloc(arena, nnlen + 1); - if ( dbkey->nickname ) { - PORT_Memcpy(dbkey->nickname, &buf[keyoff+1], nnlen); - } - } - keyoff += ( nnlen + 1 ); - saltoff = 3; - } - - PORT_Memcpy(dbkey->salt.data, &buf[saltoff], dbkey->salt.len); - - dbkey->derPK.len = bufitem->size - keyoff; - dbkey->derPK.data = (unsigned char *)PORT_ArenaZAlloc(arena,dbkey->derPK.len); - if ( dbkey->derPK.data == NULL ) { - goto loser; - } - - PORT_Memcpy(dbkey->derPK.data, &buf[keyoff], dbkey->derPK.len); - - return(dbkey); - -loser: - - if ( arena ) { - PORT_FreeArena(arena, PR_FALSE); - } - - return(NULL); -} - -static SECKEYDBKey * -get_dbkey(SECKEYKeyDBHandle *handle, DBT *index) -{ - SECKEYDBKey *dbkey; - DBT entry; - SECStatus rv; - - /* get it from the database */ - rv = (SECStatus)(* handle->db->get)(handle->db, index, &entry, 0); - if ( rv ) { - PORT_SetError(SEC_ERROR_BAD_DATABASE); - return NULL; - } - - /* set up dbkey struct */ - - dbkey = decode_dbkey(&entry, PRIVATE_KEY_DB_FILE_VERSION); - - return(dbkey); -} - -static SECStatus -put_dbkey(SECKEYKeyDBHandle *handle, DBT *index, SECKEYDBKey *dbkey, PRBool update) -{ - DBT *keydata = NULL; - int status; - - keydata = encode_dbkey(dbkey); - if ( keydata == NULL ) { - goto loser; - } - - /* put it in the database */ - if ( update ) { - status = (* handle->db->put)(handle->db, index, keydata, 0); - } else { - status = (* handle->db->put)(handle->db, index, keydata, - R_NOOVERWRITE); - } - - if ( status ) { - goto loser; - } - - /* sync the database */ - status = (* handle->db->sync)(handle->db, 0); - if ( status ) { - goto loser; - } - - free_dbt(keydata); - return(SECSuccess); - -loser: - if ( keydata ) { - free_dbt(keydata); - } - - return(SECFailure); -} - -SECStatus -SECKEY_TraverseKeys(SECKEYKeyDBHandle *handle, - SECStatus (* keyfunc)(DBT *k, DBT *d, void *pdata), - void *udata ) -{ - DBT data; - DBT key; - SECStatus status; - int rv; - - if (handle == NULL) { - return(SECFailure); - } - - rv = (* handle->db->seq)(handle->db, &key, &data, R_FIRST); - if ( rv ) { - return(SECFailure); - } - - do { - /* skip version record */ - if ( data.size > 1 ) { - if ( key.size == ( sizeof(SALT_STRING) - 1 ) ) { - if ( PORT_Memcmp(key.data, SALT_STRING, key.size) == 0 ) { - continue; - } - } - - /* skip password check */ - if ( key.size == KEYDB_PW_CHECK_LEN ) { - if ( PORT_Memcmp(key.data, KEYDB_PW_CHECK_STRING, - KEYDB_PW_CHECK_LEN) == 0 ) { - continue; - } - } - - status = (* keyfunc)(&key, &data, udata); - if (status != SECSuccess) { - return(status); - } - } - } while ( (* handle->db->seq)(handle->db, &key, &data, R_NEXT) == 0 ); - - return(SECSuccess); -} - -typedef struct keyNode { - struct keyNode *next; - DBT key; -} keyNode; - -typedef struct { - PLArenaPool *arena; - keyNode *head; -} keyList; - -static SECStatus -sec_add_key_to_list(DBT *key, DBT *data, void *arg) -{ - keyList *keylist; - keyNode *node; - void *keydata; - - keylist = (keyList *)arg; - - /* allocate the node struct */ - node = (keyNode*)PORT_ArenaZAlloc(keylist->arena, sizeof(keyNode)); - if ( node == NULL ) { - return(SECFailure); - } - - /* allocate room for key data */ - keydata = PORT_ArenaZAlloc(keylist->arena, key->size); - if ( keydata == NULL ) { - return(SECFailure); - } - - /* link node into list */ - node->next = keylist->head; - keylist->head = node; - - /* copy key into node */ - PORT_Memcpy(keydata, key->data, key->size); - node->key.size = key->size; - node->key.data = keydata; - - return(SECSuccess); -} - -static SECItem * -decodeKeyDBGlobalSalt(DBT *saltData) -{ - SECItem *saltitem; - - saltitem = (SECItem *)PORT_ZAlloc(sizeof(SECItem)); - if ( saltitem == NULL ) { - return(NULL); - } - - saltitem->data = (unsigned char *)PORT_ZAlloc(saltData->size); - if ( saltitem->data == NULL ) { - PORT_Free(saltitem); - return(NULL); - } - - saltitem->len = saltData->size; - PORT_Memcpy(saltitem->data, saltData->data, saltitem->len); - - return(saltitem); -} - -static SECItem * -GetKeyDBGlobalSalt(SECKEYKeyDBHandle *handle) -{ - DBT saltKey; - DBT saltData; - int ret; - - saltKey.data = SALT_STRING; - saltKey.size = sizeof(SALT_STRING) - 1; - - ret = (* handle->db->get)(handle->db, &saltKey, &saltData, 0); - if ( ret ) { - return(NULL); - } - - return(decodeKeyDBGlobalSalt(&saltData)); -} - -static SECStatus -makeGlobalVersion(SECKEYKeyDBHandle *handle) -{ - unsigned char version; - DBT versionData; - DBT versionKey; - int status; - - version = PRIVATE_KEY_DB_FILE_VERSION; - versionData.data = &version; - versionData.size = 1; - versionKey.data = VERSION_STRING; - versionKey.size = sizeof(VERSION_STRING)-1; - - /* put version string into the database now */ - status = (* handle->db->put)(handle->db, &versionKey, &versionData, 0); - if ( status ) { - return(SECFailure); - } - - return(SECSuccess); -} - - -static SECStatus -makeGlobalSalt(SECKEYKeyDBHandle *handle) -{ - DBT saltKey; - DBT saltData; - unsigned char saltbuf[16]; - int status; - - saltKey.data = SALT_STRING; - saltKey.size = sizeof(SALT_STRING) - 1; - - saltData.data = (void *)saltbuf; - saltData.size = sizeof(saltbuf); - RNG_GenerateGlobalRandomBytes(saltbuf, sizeof(saltbuf)); - - /* put global salt into the database now */ - status = (* handle->db->put)( handle->db, &saltKey, &saltData, 0); - if ( status ) { - return(SECFailure); - } - - return(SECSuccess); -} - -static char * -keyDBFilenameCallback(void *arg, int dbVersion) -{ - return((char *)arg); -} - -SECKEYKeyDBHandle * -SECKEY_OpenKeyDBFilename(char *dbname, PRBool readOnly) -{ - return(SECKEY_OpenKeyDB(readOnly, keyDBFilenameCallback, - (void *)dbname)); -} - -SECKEYKeyDBHandle * -SECKEY_OpenKeyDB(PRBool readOnly, SECKEYDBNameFunc namecb, void *cbarg) -{ - SECKEYKeyDBHandle *handle; - DBT versionKey; - DBT versionData; - int rv; - int openflags; - char *dbname = NULL; - PRBool updated = PR_FALSE; - - handle = (SECKEYKeyDBHandle *)PORT_ZAlloc (sizeof(SECKEYKeyDBHandle)); - if (handle == NULL) { - PORT_SetError (SEC_ERROR_NO_MEMORY); - return NULL; - } - - versionKey.data = VERSION_STRING; - versionKey.size = sizeof(VERSION_STRING)-1; - - if ( readOnly ) { - openflags = O_RDONLY; - } else { - openflags = O_RDWR; - } - - dbname = (*namecb)(cbarg, PRIVATE_KEY_DB_FILE_VERSION); - if ( dbname == NULL ) { - goto loser; - } - - handle->db = dbopen( dbname, openflags, 0600, DB_HASH, 0 ); - - /* check for correct version number */ - if (handle->db != NULL) { - /* lookup version string in database */ - rv = (* handle->db->get)( handle->db, &versionKey, &versionData, 0 ); - - /* error accessing the database */ - if ( rv < 0 ) { - goto loser; - } - - if ( rv == 1 ) { - /* no version number record, reset the database */ - (* handle->db->close)( handle->db ); - handle->db = NULL; - - goto newdb; - - } - - handle->version = *( (unsigned char *)versionData.data); - - if (handle->version != PRIVATE_KEY_DB_FILE_VERSION ) { - /* bogus version number record, reset the database */ - (* handle->db->close)( handle->db ); - handle->db = NULL; - - goto newdb; - } - - } - -newdb: - - /* if first open fails, try to create a new DB */ - if ( handle->db == NULL ) { - if ( readOnly ) { - goto loser; - } - - handle->db = dbopen( dbname, - O_RDWR | O_CREAT | O_TRUNC, 0600, DB_HASH, 0 ); - - PORT_Free( dbname ); - dbname = NULL; - - /* if create fails then we lose */ - if ( handle->db == NULL ) { - goto loser; - } - - rv = makeGlobalVersion(handle); - if ( rv != SECSuccess ) { - goto loser; - } - - /* - * try to update from v2 db - */ - dbname = (*namecb)(cbarg, 2); - if ( dbname != NULL ) { - handle->updatedb = dbopen( dbname, O_RDONLY, 0600, DB_HASH, 0 ); - - if ( handle->updatedb ) { - - - /* - * Try to update the db using a null password. If the db - * doesn't have a password, then this will work. If it does - * have a password, then this will fail and we will do the - * update later - */ - rv = SECKEY_UpdateKeyDBPass1(handle); - if ( rv == SECSuccess ) { - updated = PR_TRUE; - } - } - - PORT_Free( dbname ); - dbname = NULL; - } - - /* we are using the old salt if we updated from an old db */ - if ( ! updated ) { - rv = makeGlobalSalt(handle); - if ( rv != SECSuccess ) { - goto loser; - } - } - - /* sync the database */ - rv = (* handle->db->sync)(handle->db, 0); - if ( rv ) { - goto loser; - } - } - - handle->global_salt = GetKeyDBGlobalSalt(handle); - return handle; - -loser: - - if ( dbname ) - PORT_Free( dbname ); - PORT_SetError(SEC_ERROR_BAD_DATABASE); - - if ( handle->db ) { - (* handle->db->close)(handle->db); - } - if ( handle->updatedb ) { - (* handle->updatedb->close)(handle->updatedb); - } - PORT_Free(handle); - return NULL; -} - -/* - * Close the database - */ -void -SECKEY_CloseKeyDB(SECKEYKeyDBHandle *handle) -{ - if (handle != NULL) { - if (handle == SECKEY_GetDefaultKeyDB()) { - SECKEY_SetDefaultKeyDB(NULL); - } - if (handle->db != NULL) { - (* handle->db->close)(handle->db); - } - PORT_Free(handle); - } -} - -/* Get the key database version */ -int -SECKEY_GetKeyDBVersion(SECKEYKeyDBHandle *handle) -{ - PORT_Assert(handle != NULL); - - return handle->version; -} - -/* - * Allow use of default key database, so that apps (such as mozilla) do - * not have to pass the handle all over the place. - */ - -static SECKEYKeyDBHandle *sec_default_key_db = NULL; - -void -SECKEY_SetDefaultKeyDB(SECKEYKeyDBHandle *handle) -{ - sec_default_key_db = handle; -} - -SECKEYKeyDBHandle * -SECKEY_GetDefaultKeyDB(void) -{ - return sec_default_key_db; -} - -/* - * Delete a private key that was stored in the database - */ -SECStatus -SECKEY_DeleteKey(SECKEYKeyDBHandle *handle, SECItem *pubkey) -{ - DBT namekey; - int rv; - - if (handle == NULL) { - PORT_SetError(SEC_ERROR_BAD_DATABASE); - return(SECFailure); - } - - /* set up db key and data */ - namekey.data = pubkey->data; - namekey.size = pubkey->len; - - /* delete it from the database */ - rv = (* handle->db->del)(handle->db, &namekey, 0); - if ( rv ) { - PORT_SetError(SEC_ERROR_BAD_DATABASE); - return(SECFailure); - } - - /* sync the database */ - rv = (* handle->db->sync)(handle->db, 0); - if ( rv ) { - PORT_SetError(SEC_ERROR_BAD_DATABASE); - return(SECFailure); - } - - return(SECSuccess); -} - -/* - * Store a key in the database, indexed by its public key modulus.(value!) - */ -SECStatus -SECKEY_StoreKeyByPublicKey(SECKEYKeyDBHandle *handle, - SECKEYLowPrivateKey *privkey, - SECItem *pubKeyData, - char *nickname, - SECKEYGetPasswordKey f, void *arg) -{ - return SECKEY_StoreKeyByPublicKeyAlg(handle, privkey, pubKeyData, nickname, - f, arg, SECKEY_GetDefaultKeyDBAlg()); -} - -/* see if the public key for this cert is in the database filed - * by modulus - */ -SECStatus -SECKEY_KeyForCertExists(SECKEYKeyDBHandle *handle, CERTCertificate *cert) -{ - SECKEYPublicKey *pubkey = NULL; - DBT namekey; - DBT dummy; - int status; - - /* get cert's public key */ - pubkey = CERT_ExtractPublicKey(cert); - if ( pubkey == NULL ) { - return SECFailure; - } - - /* TNH - make key from SECKEYPublicKey */ - switch (pubkey->keyType) { - case rsaKey: - namekey.data = pubkey->u.rsa.modulus.data; - namekey.size = pubkey->u.rsa.modulus.len; - break; - case dsaKey: - namekey.data = pubkey->u.dsa.publicValue.data; - namekey.size = pubkey->u.dsa.publicValue.len; - break; - case dhKey: - namekey.data = pubkey->u.dh.publicValue.data; - namekey.size = pubkey->u.dh.publicValue.len; - break; - default: - /* XXX We don't do Fortezza or DH yet. */ - return SECFailure; - } - - status = (* handle->db->get)(handle->db, &namekey, &dummy, 0); - SECKEY_DestroyPublicKey(pubkey); - if ( status ) { - /* TNH - should this really set an error? */ - PORT_SetError(SEC_ERROR_BAD_DATABASE); - return SECFailure; - } - - return SECSuccess; -} - -/* - * find the private key for a cert - */ -SECKEYLowPrivateKey * -SECKEY_FindKeyByCert(SECKEYKeyDBHandle *handle, CERTCertificate *cert, - SECKEYGetPasswordKey f, void *arg) -{ - SECKEYPublicKey *pubkey = NULL; - SECItem *keyItem; - SECKEYLowPrivateKey *privKey = NULL; - - /* get cert's public key */ - pubkey = CERT_ExtractPublicKey(cert); - if ( !pubkey ) { - goto loser; - } - - /* TNH - make record key from SECKEYPublicKey (again) */ - switch (pubkey->keyType) { - case rsaKey: - keyItem = &pubkey->u.rsa.modulus; - break; - case dsaKey: - keyItem = &pubkey->u.dsa.publicValue; - break; - case dhKey: - keyItem = &pubkey->u.dh.publicValue; - break; - /* fortezza an NULL keys are not stored in the data base */ - case fortezzaKey: - case nullKey: - goto loser; - } - - privKey = SECKEY_FindKeyByPublicKey(handle, keyItem, f, arg); - - /* success falls through */ -loser: - SECKEY_DestroyPublicKey(pubkey); - return(privKey); -} - -/* - * check to see if the user has a password - */ -SECStatus -SECKEY_HasKeyDBPassword(SECKEYKeyDBHandle *handle) -{ - DBT checkkey, checkdata; - int rv; - - if (handle == NULL) { - return(SECFailure); - } - - checkkey.data = KEYDB_PW_CHECK_STRING; - checkkey.size = KEYDB_PW_CHECK_LEN; - - rv = (* handle->db->get)(handle->db, &checkkey, &checkdata, 0 ); - if ( rv ) { - return(SECFailure); - } - - return(SECSuccess); -} - -/* - * Set up the password checker in the key database. - * This is done by encrypting a known plaintext with the user's key. - */ -SECStatus -SECKEY_SetKeyDBPassword(SECKEYKeyDBHandle *handle, SECItem *pwitem) -{ - return SECKEY_SetKeyDBPasswordAlg(handle, pwitem, - SECKEY_GetDefaultKeyDBAlg()); -} - -/* - * Re-encrypt the entire key database with a new password. - * NOTE: This really should create a new database rather than doing it - * in place in the original - */ -SECStatus -SECKEY_ChangeKeyDBPassword(SECKEYKeyDBHandle *handle, - SECItem *oldpwitem, SECItem *newpwitem) -{ - return SECKEY_ChangeKeyDBPasswordAlg(handle, oldpwitem, newpwitem, - SECKEY_GetDefaultKeyDBAlg()); -} - -static SECStatus -HashPassword(unsigned char *hashresult, char *pw, SECItem *salt) -{ - SHA1Context *cx; - unsigned int outlen; - cx = SHA1_NewContext(); - if ( cx == NULL ) { - return(SECFailure); - } - - SHA1_Begin(cx); - if ( ( salt != NULL ) && ( salt->data != NULL ) ) { - SHA1_Update(cx, salt->data, salt->len); - } - - SHA1_Update(cx, (unsigned char *)pw, PORT_Strlen(pw)); - SHA1_End(cx, hashresult, &outlen, SHA1_LENGTH); - - SHA1_DestroyContext(cx, PR_TRUE); - - return(SECSuccess); -} - -SECItem * -SECKEY_HashPassword(char *pw, SECItem *salt) -{ - SECItem *pwitem; - SECStatus rv; - - pwitem = (SECItem *)PORT_ZAlloc(sizeof(SECItem)); - if ( pwitem == NULL ) { - return(NULL); - } - pwitem->len = SHA1_LENGTH; - pwitem->data = (unsigned char *)PORT_ZAlloc(SHA1_LENGTH); - if ( pwitem->data == NULL ) { - PORT_Free(pwitem); - return(NULL); - } - if ( pw ) { - rv = HashPassword(pwitem->data, pw, salt); - if ( rv != SECSuccess ) { - SECITEM_ZfreeItem(pwitem, PR_TRUE); - return(NULL); - } - } - - return(pwitem); -} - -/* Derive the actual password value for the database from a pw string */ -SECItem * -SECKEY_DeriveKeyDBPassword(SECKEYKeyDBHandle *keydb, char *pw) -{ - PORT_Assert(keydb != NULL); - PORT_Assert(pw != NULL); - if (keydb == NULL || pw == NULL) return(NULL); - - return SECKEY_HashPassword(pw, keydb->global_salt); -} - -#if 0 -/* Appears obsolete - TNH */ -/* get the algorithm with which a private key - * is encrypted. - */ -SECOidTag -seckey_get_private_key_algorithm(SECKEYKeyDBHandle *keydb, DBT *index) -{ - SECKEYDBKey *dbkey = NULL; - SECOidTag algorithm = SEC_OID_UNKNOWN; - SECKEYEncryptedPrivateKeyInfo *epki = NULL; - PLArenaPool *poolp = NULL; - SECStatus rv; - - poolp = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); - if(poolp == NULL) - return (SECOidTag)SECFailure; /* TNH - this is bad */ - - dbkey = get_dbkey(keydb, index); - if(dbkey == NULL) - return (SECOidTag)SECFailure; - - epki = (SECKEYEncryptedPrivateKeyInfo *)PORT_ArenaZAlloc(poolp, - sizeof(SECKEYEncryptedPrivateKeyInfo)); - if(epki == NULL) - goto loser; - rv = SEC_ASN1DecodeItem(poolp, epki, - SECKEY_EncryptedPrivateKeyInfoTemplate, &dbkey->derPK); - if(rv == SECFailure) - goto loser; - - algorithm = SECOID_GetAlgorithmTag(&epki->algorithm); - - /* let success fall through */ -loser: - if(poolp != NULL) - PORT_FreeArena(poolp, PR_TRUE);\ - if(dbkey != NULL) - sec_destroy_dbkey(dbkey); - - return algorithm; -} -#endif - -/* - * Derive an RC4 key from a password key and a salt. This - * was the method to used to encrypt keys in the version 2? - * database - */ -SECItem * -seckey_create_rc4_key(SECItem *pwitem, SECItem *salt) -{ - MD5Context *md5 = NULL; - unsigned int part; - SECStatus rv = SECFailure; - SECItem *key = NULL; - - key = (SECItem *)PORT_ZAlloc(sizeof(SECItem)); - if(key != NULL) - { - key->data = (unsigned char *)PORT_ZAlloc(sizeof(unsigned char) * - MD5_LENGTH); - key->len = MD5_LENGTH; - if(key->data != NULL) - { - md5 = MD5_NewContext(); - if ( md5 != NULL ) - { - MD5_Begin(md5); - MD5_Update(md5, salt->data, salt->len); - MD5_Update(md5, pwitem->data, pwitem->len); - MD5_End(md5, key->data, &part, MD5_LENGTH); - MD5_DestroyContext(md5, PR_TRUE); - rv = SECSuccess; - } - } - - if(rv != SECSuccess) - { - SECITEM_FreeItem(key, PR_TRUE); - key = NULL; - } - } - - return key; -} - -SECItem * -seckey_create_rc4_salt(void) -{ - SECItem *salt = NULL; - SECStatus rv = SECFailure; - - salt = (SECItem *)PORT_ZAlloc(sizeof(SECItem)); - if(salt == NULL) - return NULL; - - salt->data = (unsigned char *)PORT_ZAlloc(sizeof(unsigned char) * - SALT_LENGTH); - if(salt->data != NULL) - { - salt->len = SALT_LENGTH; - RNG_GenerateGlobalRandomBytes(salt->data, salt->len); - rv = SECSuccess; - } - - if(rv == SECFailure) - { - SECITEM_FreeItem(salt, PR_TRUE); - salt = NULL; - } - - return salt; -} - -SECItem * -seckey_rc4_cipher(SECItem *key, SECItem *src, PRBool encrypt) -{ - SECItem *dest = NULL; - RC4Context *ctxt = NULL; - SECStatus rv = SECFailure; - - if((key == NULL) || (src == NULL)) - return NULL; - - dest = (SECItem *)PORT_ZAlloc(sizeof(SECItem)); - if(dest == NULL) - return NULL; - - dest->data = (unsigned char *)PORT_ZAlloc(sizeof(unsigned char) * - (src->len + 64)); /* TNH - padding? */ - if(dest->data != NULL) - { - ctxt = RC4_CreateContext(key->data, key->len); - if(ctxt != NULL) - { - if(encrypt == PR_TRUE) - rv = RC4_Encrypt(ctxt, dest->data, &dest->len, - src->len + 64, src->data, src->len); - else - rv = RC4_Decrypt(ctxt, dest->data, &dest->len, - src->len + 64, src->data, src->len); - RC4_DestroyContext(ctxt, PR_TRUE); - } - } - - if(rv == SECFailure) - if(dest != NULL) - { - SECITEM_FreeItem(dest, PR_TRUE); - dest = NULL; - } - - return dest; -} - -/* TNH - keydb is unused */ -/* TNH - the pwitem should be the derived key for RC4 */ -SECKEYEncryptedPrivateKeyInfo * -seckey_encrypt_private_key( - SECKEYLowPrivateKey *pk, SECItem *pwitem, SECKEYKeyDBHandle *keydb, - SECOidTag algorithm) -{ - SECKEYEncryptedPrivateKeyInfo *epki = NULL; - SECKEYPrivateKeyInfo *pki = NULL; - SECStatus rv = SECFailure; - SECAlgorithmID *algid = NULL; - PLArenaPool *temparena = NULL, *permarena = NULL; - SECItem *key = NULL, *salt = NULL, *der_item = NULL; - SECItem *dummy = NULL, *dest = NULL; - - permarena = PORT_NewArena(SEC_ASN1_DEFAULT_ARENA_SIZE); - if(permarena == NULL) - return NULL; - - temparena = PORT_NewArena(SEC_ASN1_DEFAULT_ARENA_SIZE); - if(temparena == NULL) - goto loser; - - /* allocate structures */ - epki = (SECKEYEncryptedPrivateKeyInfo *)PORT_ArenaZAlloc(permarena, - sizeof(SECKEYEncryptedPrivateKeyInfo)); - pki = (SECKEYPrivateKeyInfo *)PORT_ArenaZAlloc(temparena, - sizeof(SECKEYPrivateKeyInfo)); - der_item = (SECItem *)PORT_ArenaZAlloc(temparena, sizeof(SECItem)); - if((epki == NULL) || (pki == NULL) || (der_item == NULL)) - goto loser; - - epki->arena = permarena; - - /* setup private key info */ - dummy = SEC_ASN1EncodeInteger(temparena, &(pki->version), - SEC_PRIVATE_KEY_INFO_VERSION); - if(dummy == NULL) - goto loser; - - /* Encode the key, and set the algorithm (with params) */ - switch (pk->keyType) { - case rsaKey: - dummy = SEC_ASN1EncodeItem(temparena, &(pki->privateKey), pk, - SECKEY_RSAPrivateKeyTemplate); - if (dummy == NULL) { - rv = SECFailure; - goto loser; - } - - rv = SECOID_SetAlgorithmID(temparena, &(pki->algorithm), - SEC_OID_PKCS1_RSA_ENCRYPTION, 0); - if (rv == SECFailure) { - goto loser; - } - - break; - case dsaKey: - dummy = SEC_ASN1EncodeItem(temparena, &(pki->privateKey), pk, - SECKEY_DSAPrivateKeyTemplate); - if (dummy == NULL) { - rv = SECFailure; - goto loser; - } - - dummy = SEC_ASN1EncodeItem(temparena, NULL, &pk->u.dsa.params, - SECKEY_PQGParamsTemplate); - if (dummy == NULL) { - rv = SECFailure; - goto loser; - } - - rv = SECOID_SetAlgorithmID(temparena, &(pki->algorithm), - SEC_OID_ANSIX9_DSA_SIGNATURE, dummy); - if (rv == SECFailure) { - goto loser; - } - - break; - case dhKey: - dummy = SEC_ASN1EncodeItem(temparena, &(pki->privateKey), pk, - SECKEY_DHPrivateKeyTemplate); - if (dummy == NULL) { - rv = SECFailure; - goto loser; - } - - rv = SECOID_SetAlgorithmID(temparena, &(pki->algorithm), - SEC_OID_X942_DIFFIE_HELMAN_KEY, dummy); - if (rv == SECFailure) { - goto loser; - } - break; - default: - /* We don't support DH or Fortezza private keys yet */ - PORT_Assert(PR_FALSE); - break; - } - - /* setup encrypted private key info */ - dummy = SEC_ASN1EncodeItem(temparena, der_item, pki, - SECKEY_PrivateKeyInfoTemplate); - if(dummy == NULL) { - rv = SECFailure; - goto loser; - } - - rv = SECFailure; /* assume failure */ - switch(algorithm) - { - case SEC_OID_RC4: - salt = seckey_create_rc4_salt(); - if(salt != NULL) - { - key = seckey_create_rc4_key(pwitem, salt); - if(key != NULL) - { - dest = seckey_rc4_cipher(key, der_item, PR_TRUE); - if(dest != NULL) - { - rv = SECITEM_CopyItem(permarena, &epki->encryptedData, - dest); - if(rv == SECSuccess) - rv = SECOID_SetAlgorithmID(permarena, - &epki->algorithm, SEC_OID_RC4, salt); - } - } - } - if(dest != NULL) - SECITEM_FreeItem(dest, PR_TRUE); - if(key != NULL) - SECITEM_ZfreeItem(key, PR_TRUE); - break; - default: - algid = SEC_PKCS5CreateAlgorithmID(algorithm, NULL, 1); - if(algid != NULL) - { - dest = SEC_PKCS5CipherData(algid, pwitem, - der_item, PR_TRUE, NULL); - if(dest != NULL) - { - rv = SECITEM_CopyItem(permarena, &epki->encryptedData, - dest); - if(rv == SECSuccess) - rv = SECOID_CopyAlgorithmID(permarena, - &epki->algorithm, algid); - } - } - if(dest != NULL) - SECITEM_FreeItem(dest, PR_TRUE); - if(algid != NULL) - SECOID_DestroyAlgorithmID(algid, PR_TRUE); - break; - } - - /* let success fall through */ -loser: - - if(rv == SECFailure) - { - PORT_FreeArena(permarena, PR_TRUE); - epki = NULL; - } - - if(temparena != NULL) - PORT_FreeArena(temparena, PR_TRUE); - - if(salt != NULL) - SECITEM_FreeItem(salt, PR_TRUE); - - return epki; -} - -SECStatus -seckey_put_private_key(SECKEYKeyDBHandle *keydb, DBT *index, SECItem *pwitem, - SECKEYLowPrivateKey *pk, char *nickname, PRBool update, - SECOidTag algorithm) -{ - SECKEYDBKey *dbkey = NULL; - SECKEYEncryptedPrivateKeyInfo *epki = NULL; - PLArenaPool *temparena = NULL, *permarena = NULL; - SECItem *dummy = NULL; - SECItem *salt = NULL; - SECStatus rv = SECFailure; - - if((keydb == NULL) || (index == NULL) || (pwitem == NULL) || - (pk == NULL)) - return SECFailure; - - permarena = PORT_NewArena(SEC_ASN1_DEFAULT_ARENA_SIZE); - if(permarena == NULL) - return SECFailure; - - dbkey = (SECKEYDBKey *)PORT_ArenaZAlloc(permarena, sizeof(SECKEYDBKey)); - if(dbkey == NULL) - goto loser; - dbkey->arena = permarena; - dbkey->nickname = nickname; - - /* TNH - for RC4, the salt should be created here */ - - epki = seckey_encrypt_private_key(pk, pwitem, keydb, algorithm); - if(epki == NULL) - goto loser; - temparena = epki->arena; - - /* extract salt for db key */ - switch(algorithm) - { - case SEC_OID_RC4: - rv = SECITEM_CopyItem(permarena, &(dbkey->salt), - &(epki->algorithm.parameters)); - epki->algorithm.parameters.len = 0; - epki->algorithm.parameters.data = NULL; - break; - default: - /* TNH - this should not be necessary */ - salt = SEC_PKCS5GetSalt(&epki->algorithm); - if(salt != NULL) - { - rv = SECITEM_CopyItem(permarena, &(dbkey->salt), salt); - SECITEM_ZfreeItem(salt, PR_TRUE); - } - break; - } - - dummy = SEC_ASN1EncodeItem(permarena, &(dbkey->derPK), epki, - SECKEY_EncryptedPrivateKeyInfoTemplate); - if(dummy == NULL) - rv = SECFailure; - else - rv = put_dbkey(keydb, index, dbkey, update); - - /* let success fall through */ -loser: - if(rv != SECSuccess) - if(permarena != NULL) - PORT_FreeArena(permarena, PR_TRUE); - if(temparena != NULL) - PORT_FreeArena(temparena, PR_TRUE); - - return rv; -} - -/* - * Store a key in the database, indexed by its public key modulus. - * Note that the nickname is optional. It was only used by keyutil. - */ -SECStatus -SECKEY_StoreKeyByPublicKeyAlg(SECKEYKeyDBHandle *handle, - SECKEYLowPrivateKey *privkey, - SECItem *pubKeyData, - char *nickname, - SECKEYGetPasswordKey f, void *arg, - SECOidTag algorithm) -{ - DBT namekey; - SECItem *pwitem = NULL; - SECStatus rv; - - if (handle == NULL) { - PORT_SetError(SEC_ERROR_BAD_DATABASE); - return(SECFailure); - } - - /* set up db key and data */ - namekey.data = pubKeyData->data; - namekey.size = pubKeyData->len; - - pwitem = (*f )(arg, handle); - if ( pwitem == NULL ) { - return(SECFailure); - } - - /* encrypt the private key */ - rv = seckey_put_private_key(handle, &namekey, pwitem, privkey, nickname, - PR_FALSE, algorithm); - SECITEM_ZfreeItem(pwitem, PR_TRUE); - - return(rv); -} - -SECKEYLowPrivateKey * -seckey_decrypt_private_key(SECKEYEncryptedPrivateKeyInfo *epki, - SECItem *pwitem) -{ - SECKEYLowPrivateKey *pk = NULL; - SECKEYPrivateKeyInfo *pki = NULL; - SECStatus rv = SECFailure; - SECOidTag algorithm; - PLArenaPool *temparena = NULL, *permarena = NULL; - SECItem *salt = NULL, *dest = NULL, *key = NULL; - - if((epki == NULL) || (pwitem == NULL)) - goto loser; - - temparena = PORT_NewArena(SEC_ASN1_DEFAULT_ARENA_SIZE); - permarena = PORT_NewArena(SEC_ASN1_DEFAULT_ARENA_SIZE); - if((temparena == NULL) || (permarena == NULL)) - goto loser; - - /* allocate temporary items */ - pki = (SECKEYPrivateKeyInfo *)PORT_ArenaZAlloc(temparena, - sizeof(SECKEYPrivateKeyInfo)); - - /* allocate permanent arena items */ - pk = (SECKEYLowPrivateKey *)PORT_ArenaZAlloc(permarena, - sizeof(SECKEYLowPrivateKey)); - - if((pk == NULL) || (pki == NULL)) - goto loser; - - pk->arena = permarena; - - algorithm = SECOID_GetAlgorithmTag(&(epki->algorithm)); - switch(algorithm) - { - case SEC_OID_RC4: - salt = SECITEM_DupItem(&epki->algorithm.parameters); - if(salt != NULL) - { - key = seckey_create_rc4_key(pwitem, salt); - if(key != NULL) - { - dest = seckey_rc4_cipher(key, &epki->encryptedData, - PR_FALSE); - } - } - if(salt != NULL) - SECITEM_ZfreeItem(salt, PR_TRUE); - if(key != NULL) - SECITEM_ZfreeItem(key, PR_TRUE); - break; - default: - /* we depend on the fact that if this key was encoded with - * DES, that the pw was also encoded with DES, so we don't have - * to do the update here, the password code will handle it. */ - dest = SEC_PKCS5CipherData(&epki->algorithm, pwitem, - &epki->encryptedData, PR_FALSE, NULL); - break; - } - - if(dest != NULL) - { - rv = SEC_ASN1DecodeItem(temparena, pki, - SECKEY_PrivateKeyInfoTemplate, dest); - if(rv == SECSuccess) - { - switch(SECOID_GetAlgorithmTag(&pki->algorithm)) { - case SEC_OID_X500_RSA_ENCRYPTION: - case SEC_OID_PKCS1_RSA_ENCRYPTION: - pk->keyType = rsaKey; - rv = SEC_ASN1DecodeItem(permarena, pk, - SECKEY_RSAPrivateKeyTemplate, - &pki->privateKey); - break; - case SEC_OID_ANSIX9_DSA_SIGNATURE: - pk->keyType = dsaKey; - rv = SEC_ASN1DecodeItem(permarena, pk, - SECKEY_DSAPrivateKeyTemplate, - &pki->privateKey); - if (rv != SECSuccess) - goto loser; - rv = SEC_ASN1DecodeItem(permarena, &pk->u.dsa.params, - SECKEY_PQGParamsTemplate, - &pki->algorithm.parameters); - break; - case SEC_OID_X942_DIFFIE_HELMAN_KEY: - pk->keyType = dhKey; - rv = SEC_ASN1DecodeItem(permarena, pk, - SECKEY_DHPrivateKeyTemplate, - &pki->privateKey); - break; - default: - rv = SECFailure; - break; - } - } - else if(PORT_GetError() == SEC_ERROR_BAD_DER) - { - PORT_SetError(SEC_ERROR_BAD_PASSWORD); - goto loser; - } - } - - /* let success fall through */ -loser: - if(temparena != NULL) - PORT_FreeArena(temparena, PR_TRUE); - if(dest != NULL) - SECITEM_ZfreeItem(dest, PR_TRUE); - - if(rv != SECSuccess) - { - if(permarena != NULL) - PORT_FreeArena(permarena, PR_TRUE); - pk = NULL; - } - - return pk; -} - -static SECKEYLowPrivateKey * -seckey_decode_encrypted_private_key(SECKEYDBKey *dbkey, SECItem *pwitem) -{ - SECKEYLowPrivateKey *pk = NULL; - SECKEYEncryptedPrivateKeyInfo *epki; - PLArenaPool *temparena = NULL; - SECStatus rv; - SECOidTag algorithm; - - if( ( dbkey == NULL ) || ( pwitem == NULL ) ) { - return NULL; - } - - temparena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); - if(temparena == NULL) { - return NULL; - } - - epki = (SECKEYEncryptedPrivateKeyInfo *) - PORT_ArenaZAlloc(temparena, sizeof(SECKEYEncryptedPrivateKeyInfo)); - - if(epki == NULL) { - goto loser; - } - - rv = SEC_ASN1DecodeItem(temparena, epki, - SECKEY_EncryptedPrivateKeyInfoTemplate, - &(dbkey->derPK)); - if(rv != SECSuccess) { - goto loser; - } - - algorithm = SECOID_GetAlgorithmTag(&(epki->algorithm)); - switch(algorithm) - { - case SEC_OID_RC4: - /* TNH - this code should derive the actual RC4 key from salt and - pwitem */ - rv = SECITEM_CopyItem(temparena, &(epki->algorithm.parameters), - &(dbkey->salt)); - break; - default: - break; - } - - pk = seckey_decrypt_private_key(epki, pwitem); - - /* let success fall through */ -loser: - - PORT_FreeArena(temparena, PR_TRUE); - return pk; -} - -SECKEYLowPrivateKey * -seckey_get_private_key(SECKEYKeyDBHandle *keydb, DBT *index, char **nickname, - SECItem *pwitem) -{ - SECKEYDBKey *dbkey = NULL; - SECKEYLowPrivateKey *pk = NULL; - - if( ( keydb == NULL ) || ( index == NULL ) || ( pwitem == NULL ) ) { - return NULL; - } - - dbkey = get_dbkey(keydb, index); - if(dbkey == NULL) { - goto loser; - } - - if ( nickname ) { - if ( dbkey->nickname && ( dbkey->nickname[0] != 0 ) ) { - *nickname = PORT_Strdup(dbkey->nickname); - } else { - *nickname = NULL; - } - } - - pk = seckey_decode_encrypted_private_key(dbkey, pwitem); - - /* let success fall through */ -loser: - - if ( dbkey != NULL ) { - sec_destroy_dbkey(dbkey); - } - - return pk; -} - -/* - * used by pkcs11 to import keys into it's object format... In the future - * we really need a better way to tie in... - */ -SECKEYLowPrivateKey * -SECKEY_DecryptKey(DBT *key, SECItem *pwitem, - SECKEYKeyDBHandle *handle) { - return seckey_get_private_key(handle,key,NULL,pwitem); -} - -/* - * Find a key in the database, indexed by its public key modulus - * This is used to find keys that have been stored before their - * certificate arrives. Once the certificate arrives the key - * is looked up by the public modulus in the certificate, and the - * re-stored by its nickname. - */ -SECKEYLowPrivateKey * -SECKEY_FindKeyByPublicKey(SECKEYKeyDBHandle *handle, SECItem *modulus, - SECKEYGetPasswordKey f, void *arg) -{ - DBT namekey; - SECKEYLowPrivateKey *pk = NULL; - SECItem *pwitem = NULL; - - if (handle == NULL) { - PORT_SetError(SEC_ERROR_BAD_DATABASE); - return NULL; - } - - /* set up db key */ - namekey.data = modulus->data; - namekey.size = modulus->len; - - pwitem = (*f )(arg, handle); - if ( pwitem == NULL ) { - return(NULL); - } - - pk = seckey_get_private_key(handle, &namekey, NULL, pwitem); - SECITEM_ZfreeItem(pwitem, PR_TRUE); - - /* no need to free dbkey, since its on the stack, and the data it - * points to is owned by the database - */ - return(pk); -} - -/* ===== ENCODING ROUTINES ===== */ - -static SECStatus -encodePWCheckEntry(PLArenaPool *arena, SECItem *entry, SECOidTag alg, - SECItem *encCheck) -{ - SECOidData *oidData; - SECStatus rv; - - oidData = SECOID_FindOIDByTag(alg); - if ( oidData == NULL ) { - rv = SECFailure; - goto loser; - } - - entry->len = 1 + oidData->oid.len + encCheck->len; - if ( arena ) { - entry->data = (unsigned char *)PORT_ArenaAlloc(arena, entry->len); - } else { - entry->data = (unsigned char *)PORT_Alloc(entry->len); - } - - if ( entry->data == NULL ) { - goto loser; - } - - /* first length of oid */ - entry->data[0] = (unsigned char)oidData->oid.len; - /* next oid itself */ - PORT_Memcpy(&entry->data[1], oidData->oid.data, oidData->oid.len); - /* finally the encrypted check string */ - PORT_Memcpy(&entry->data[1+oidData->oid.len], encCheck->data, - encCheck->len); - - return(SECSuccess); - -loser: - return(SECFailure); -} - -/* - * Set up the password checker in the key database. - * This is done by encrypting a known plaintext with the user's key. - */ -SECStatus -SECKEY_SetKeyDBPasswordAlg(SECKEYKeyDBHandle *handle, - SECItem *pwitem, SECOidTag algorithm) -{ - DBT checkkey; - SECAlgorithmID *algid = NULL; - SECStatus rv = SECFailure; - SECKEYDBKey *dbkey = NULL; - PLArenaPool *arena; - SECItem *key = NULL, *salt = NULL; - SECItem *dest = NULL, test_key; - - if (handle == NULL) { - return(SECFailure); - } - - arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); - if ( arena == NULL ) { - rv = SECFailure; - goto loser; - } - - dbkey = (SECKEYDBKey *)PORT_ArenaZAlloc(arena, sizeof(SECKEYDBKey)); - if ( dbkey == NULL ) { - rv = SECFailure; - goto loser; - } - - dbkey->arena = arena; - - /* encrypt key */ - checkkey.data = test_key.data = (unsigned char *)KEYDB_PW_CHECK_STRING; - checkkey.size = test_key.len = KEYDB_PW_CHECK_LEN; - - salt = seckey_create_rc4_salt(); - if(salt == NULL) { - rv = SECFailure; - goto loser; - } - - switch(algorithm) - { - case SEC_OID_RC4: - key = seckey_create_rc4_key(pwitem, salt); - if(key != NULL) - { - dest = seckey_rc4_cipher(key, &test_key, PR_TRUE); - SECITEM_FreeItem(key, PR_TRUE); - } - break; - default: - algid = SEC_PKCS5CreateAlgorithmID(algorithm, salt, 1); - if(algid != NULL) - dest = SEC_PKCS5CipherData(algid, pwitem, &test_key, - PR_TRUE, NULL); - break; - } - - if(dest != NULL) - { - rv = SECITEM_CopyItem(arena, &dbkey->salt, salt); - if(rv == SECFailure) - goto loser; - - rv = encodePWCheckEntry(arena, &dbkey->derPK, algorithm, dest); - - if ( rv != SECSuccess ) { - goto loser; - } - - rv = put_dbkey(handle, &checkkey, dbkey, PR_TRUE); - } else { - rv = SECFailure; - } - - /* let success fall through */ -loser: - if ( arena != NULL ) { - PORT_FreeArena(arena, PR_TRUE); - } - - if ( dest != NULL ) { - SECITEM_ZfreeItem(dest, PR_TRUE); - } - - if ( salt != NULL ) { - SECITEM_ZfreeItem(salt, PR_TRUE); - } - - return(rv); -} - -/* - * check to see if the user has typed the right password - */ -SECStatus -SECKEY_CheckKeyDBPassword(SECKEYKeyDBHandle *handle, SECItem *pwitem) -{ - DBT checkkey; - SECAlgorithmID *algid = NULL; - SECStatus rv = SECFailure; - SECKEYDBKey *dbkey = NULL; - SECItem *key = NULL; - SECItem *dest = NULL; - SECOidTag algorithm; - SECItem oid; - SECItem encstring; - PRBool update = PR_FALSE; - - if (handle == NULL) { - goto loser; - } - - checkkey.data = KEYDB_PW_CHECK_STRING; - checkkey.size = KEYDB_PW_CHECK_LEN; - - dbkey = get_dbkey(handle, &checkkey); - - if ( dbkey == NULL ) { - goto loser; - } - - /* build the oid item */ - oid.len = dbkey->derPK.data[0]; - oid.data = &dbkey->derPK.data[1]; - - /* make sure entry is the correct length - * since we are probably using a block cipher, the block will be - * padded, so we may get a bit more than the exact size we need. - */ - if ( dbkey->derPK.len < (KEYDB_PW_CHECK_LEN + 1 + oid.len ) ) { - goto loser; - } - - /* find the algorithm tag */ - algorithm = SECOID_FindOIDTag(&oid); - - /* make a secitem of the encrypted check string */ - encstring.len = dbkey->derPK.len - ( oid.len + 1 ); - encstring.data = &dbkey->derPK.data[oid.len+1]; - - switch(algorithm) - { - case SEC_OID_RC4: - key = seckey_create_rc4_key(pwitem, &dbkey->salt); - if(key != NULL) { - dest = seckey_rc4_cipher(key, &encstring, PR_FALSE); - SECITEM_FreeItem(key, PR_TRUE); - } - break; - default: - algid = SEC_PKCS5CreateAlgorithmID(algorithm, - &dbkey->salt, 1); - if(algid != NULL) { - /* Decrypt - this function implements a workaround for - * a previous coding error. It will decrypt values using - * DES rather than 3DES, if the initial try at 3DES - * decryption fails. In this case, the update flag is - * set to TRUE. This indication is used later to force - * an update of the database to "real" 3DES encryption. - */ - dest = SEC_PKCS5CipherData(algid, pwitem, - &encstring, PR_FALSE, &update); - SECOID_DestroyAlgorithmID(algid, PR_TRUE); - } - break; - } - - if(dest == NULL) { - goto loser; - } - - if ((dest->len == KEYDB_PW_CHECK_LEN) && - (PORT_Memcmp(dest->data, - KEYDB_PW_CHECK_STRING, KEYDB_PW_CHECK_LEN) == 0)) { - rv = SECSuccess; - /* we succeeded */ - if ( algorithm == SEC_OID_RC4 ) { - /* partially updated database */ - SECKEY_UpdateKeyDBPass2(handle, pwitem); - } - /* Force an update of the password to remove the incorrect DES - * encryption (see the note above) - */ - if (update && - (algorithm == SEC_OID_PKCS12_PBE_WITH_SHA1_AND_TRIPLE_DES_CBC)) { - /* data base was encoded with DES not triple des, fix it */ - SECKEY_UpdateKeyDBPass2(handle,pwitem); - } - } - -loser: - sec_destroy_dbkey(dbkey); - if(dest != NULL) { - SECITEM_ZfreeItem(dest, PR_TRUE); - } - - return(rv); -} - -/* - * Change the database password and/or algorithm. This internal - * routine does not check the old password. That must be done by - * the caller. - */ -static SECStatus -ChangeKeyDBPasswordAlg(SECKEYKeyDBHandle *handle, - SECItem *oldpwitem, SECItem *newpwitem, - SECOidTag new_algorithm) -{ - SECStatus rv; - keyList keylist; - keyNode *node = NULL; - SECKEYLowPrivateKey *privkey = NULL; - char *nickname; - DBT newkey; - int ret; - - /* traverse the database, collecting the keys of all records */ - keylist.arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); - if ( keylist.arena == NULL ) - { - PORT_SetError(SEC_ERROR_NO_MEMORY); - return(SECFailure); - } - keylist.head = NULL; - - /* TNH - TraverseKeys should not be public, since it exposes - the underlying DBT data type. */ - rv = SECKEY_TraverseKeys(handle, sec_add_key_to_list, (void *)&keylist); - if ( rv != SECSuccess ) - goto loser; - - /* walk the list, re-encrypting each entry */ - node = keylist.head; - while ( node != NULL ) - { - privkey = seckey_get_private_key(handle, &node->key, &nickname, - oldpwitem); - - if (privkey == NULL) { - PORT_SetError(SEC_ERROR_BAD_DATABASE); - rv = SECFailure; - goto loser; - } - - /* delete the old record */ - ret = (* handle->db->del)(handle->db, &node->key, 0); - if ( ret ) { - PORT_SetError(SEC_ERROR_BAD_DATABASE); - rv = SECFailure; - goto loser; - } - - /* get the public key, which we use as the database index */ - - switch (privkey->keyType) { - case rsaKey: - newkey.data = privkey->u.rsa.modulus.data; - newkey.size = privkey->u.rsa.modulus.len; - break; - case dsaKey: - newkey.data = privkey->u.dsa.publicValue.data; - newkey.size = privkey->u.dsa.publicValue.len; - break; - case dhKey: - newkey.data = privkey->u.dh.publicValue.data; - newkey.size = privkey->u.dh.publicValue.len; - break; - default: - /* XXX We don't do Fortezza. */ - return SECFailure; - } - - rv = seckey_put_private_key(handle, &newkey, newpwitem, privkey, - nickname, PR_TRUE, new_algorithm); - - if ( rv != SECSuccess ) - { - PORT_SetError(SEC_ERROR_BAD_DATABASE); - rv = SECFailure; - goto loser; - } - - /* next node */ - node = node->next; - } - - rv = SECKEY_SetKeyDBPasswordAlg(handle, newpwitem, new_algorithm); - -loser: - - /* free the arena */ - if ( keylist.arena ) { - PORT_FreeArena(keylist.arena, PR_FALSE); - } - - return(rv); -} - -/* - * Re-encrypt the entire key database with a new password. - * NOTE: The really should create a new database rather than doing it - * in place in the original - */ -SECStatus -SECKEY_ChangeKeyDBPasswordAlg(SECKEYKeyDBHandle *handle, - SECItem *oldpwitem, SECItem *newpwitem, - SECOidTag new_algorithm) -{ - SECStatus rv; - - if (handle == NULL) { - PORT_SetError(SEC_ERROR_BAD_DATABASE); - rv = SECFailure; - goto loser; - } - - rv = SECKEY_CheckKeyDBPassword(handle, oldpwitem); - if ( rv != SECSuccess ) { - return(SECFailure); /* return rv? */ - } - - rv = ChangeKeyDBPasswordAlg(handle, oldpwitem, newpwitem, new_algorithm); - -loser: - return(rv); -} - -/* - * Second pass of updating the key db. This time we have a password. - */ -SECStatus -SECKEY_UpdateKeyDBPass2(SECKEYKeyDBHandle *handle, SECItem *pwitem) -{ - SECStatus rv; - - rv = ChangeKeyDBPasswordAlg(handle, pwitem, pwitem, - SECKEY_GetDefaultKeyDBAlg()); - - return(rv); -} - -/* - * currently updates key database from v2 to v3 - */ -SECStatus -SECKEY_UpdateKeyDBPass1(SECKEYKeyDBHandle *handle) -{ - SECStatus rv; - DBT versionKey; - DBT versionData; - DBT checkKey; - DBT checkData; - DBT saltKey; - DBT saltData; - DBT key; - DBT data; - SECItem *rc4key = NULL; - SECKEYDBKey *dbkey = NULL; - SECItem *oldSalt = NULL; - int ret; - SECItem checkitem; - - if ( handle->updatedb == NULL ) { - return(SECSuccess); - } - - /* - * check the version record - */ - versionKey.data = VERSION_STRING; - versionKey.size = sizeof(VERSION_STRING)-1; - - ret = (* handle->updatedb->get)(handle->updatedb, &versionKey, - &versionData, 0 ); - - if (ret) { - /* no version record, so old db never used */ - goto done; - } - - if ( ( versionData.size != 1 ) || - ( *((unsigned char *)versionData.data) != 2 ) ) { - /* corrupt or wrong version number so don't update */ - goto done; - } - - saltKey.data = SALT_STRING; - saltKey.size = sizeof(SALT_STRING) - 1; - - ret = (* handle->updatedb->get)(handle->updatedb, &saltKey, &saltData, 0); - if ( ret ) { - /* no salt in old db, so it is corrupted */ - goto done; - } - - oldSalt = decodeKeyDBGlobalSalt(&saltData); - if ( oldSalt == NULL ) { - /* bad salt in old db, so it is corrupted */ - goto done; - } - - /* - * look for a pw check entry - */ - checkKey.data = KEYDB_PW_CHECK_STRING; - checkKey.size = KEYDB_PW_CHECK_LEN; - - rv = (SECStatus)(* handle->updatedb->get)(handle->updatedb, &checkKey, - &checkData, 0 ); - if (rv) { - /* no pw check, so old db never used */ - goto done; - } - - dbkey = decode_dbkey(&checkData, 2); - if ( dbkey == NULL ) { - goto done; - } - - /* put global salt into the new database now */ - ret = (* handle->db->put)( handle->db, &saltKey, &saltData, 0); - if ( ret ) { - goto done; - } - - checkitem = dbkey->derPK; - dbkey->derPK.data = NULL; - - /* format the new pw check entry */ - rv = encodePWCheckEntry(NULL, &dbkey->derPK, SEC_OID_RC4, &checkitem); - if ( rv != SECSuccess ) { - goto done; - } - - rv = put_dbkey(handle, &checkKey, dbkey, PR_TRUE); - if ( rv != SECSuccess ) { - goto done; - } - - /* free the dbkey */ - sec_destroy_dbkey(dbkey); - dbkey = NULL; - - /* now traverse the database */ - ret = (* handle->updatedb->seq)(handle->updatedb, &key, &data, R_FIRST); - if ( ret ) { - goto done; - } - - do { - /* skip version record */ - if ( data.size > 1 ) { - /* skip salt */ - if ( key.size == ( sizeof(SALT_STRING) - 1 ) ) { - if ( PORT_Memcmp(key.data, SALT_STRING, key.size) == 0 ) { - continue; - } - } - /* skip pw check entry */ - if ( key.size == checkKey.size ) { - if ( PORT_Memcmp(key.data, checkKey.data, key.size) == 0 ) { - continue; - } - } - - /* keys stored by nickname will have 0 as the last byte of the - * db key. Other keys must be stored by modulus. We will not - * update those because they are left over from a keygen that - * never resulted in a cert. - */ - if ( ((unsigned char *)key.data)[key.size-1] != 0 ) { - continue; - } - - dbkey = decode_dbkey(&data, 2); - if ( dbkey == NULL ) { - continue; - } - - /* This puts the key into the new database with the same - * index (nickname) that it had before. The second pass - * of the update will have the password. It will decrypt - * and re-encrypt the entries using a new algorithm. - */ - dbkey->nickname = (char *)key.data; - rv = put_dbkey(handle, &key, dbkey, PR_FALSE); - dbkey->nickname = NULL; - - sec_destroy_dbkey(dbkey); - } - } while ( (* handle->updatedb->seq)(handle->updatedb, &key, &data, - R_NEXT) == 0 ); - - dbkey = NULL; - -done: - /* sync the database */ - ret = (* handle->db->sync)(handle->db, 0); - - (* handle->updatedb->close)(handle->updatedb); - handle->updatedb = NULL; - - if ( rc4key ) { - SECITEM_FreeItem(rc4key, PR_TRUE); - } - - if ( oldSalt ) { - SECITEM_FreeItem(oldSalt, PR_TRUE); - } - - if ( dbkey ) { - sec_destroy_dbkey(dbkey); - } - - return(SECSuccess); -} - -/* - * Clear out all the keys in the existing database - */ -SECStatus -SECKEY_ResetKeyDB(SECKEYKeyDBHandle *handle) -{ - SECStatus rv; - DBT key; - DBT data; - int ret; - int errors = 0; - - if ( handle->db == NULL ) { - return(SECSuccess); - } - - - /* now traverse the database */ - ret = (* handle->db->seq)(handle->db, &key, &data, R_FIRST); - if ( ret ) { - goto done; - } - - do { - /* delete each entry */ - ret = (* handle->db->del)(handle->db, &key, 0); - if ( ret ) errors++; - - } while ( (* handle->db->seq)(handle->db, &key, &data, - R_NEXT) == 0 ); - rv = makeGlobalVersion(handle); - if ( rv != SECSuccess ) { - errors++; - goto done; - } - - rv = makeGlobalSalt(handle); - if ( rv != SECSuccess ) { - errors++; - goto done; - } - - if (handle->global_salt) { - SECITEM_FreeItem(handle->global_salt,PR_TRUE); - } - handle->global_salt = GetKeyDBGlobalSalt(handle); - -done: - /* sync the database */ - ret = (* handle->db->sync)(handle->db, 0); - - return (errors == 0 ? SECSuccess : SECFailure); -} |