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* pubkey-enc.c (get_session_key): With hidden recipients or try a given
passphrase against all secret keys rather than trying all secret keys in turn. Don't if --try-all-secrets or --status-fd is enabled. * passphrase.c (passphrase_to_dek): Mode 1 means do a regular passphrase query, but don't prompt with the key info. * seckey-cert.c (do_check, check_secret_key): A negative ask count means to enable passphrase mode 1. * keydb.h, getkey.c (enum_secret_keys): Add flag to include secret-parts-missing keys (or not) in the list.
This commit is contained in:
David Shaw
parent
ec0d9a416e
commit
3cb4118b6c
@ -1,3 +1,19 @@
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2002-11-06 David Shaw <dshaw@jabberwocky.com>
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* pubkey-enc.c (get_session_key): With hidden recipients or try a
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given passphrase against all secret keys rather than trying all
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secret keys in turn. Don't if --try-all-secrets or --status-fd is
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enabled.
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* passphrase.c (passphrase_to_dek): Mode 1 means do a regular
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passphrase query, but don't prompt with the key info.
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* seckey-cert.c (do_check, check_secret_key): A negative ask count
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means to enable passphrase mode 1.
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* keydb.h, getkey.c (enum_secret_keys): Add flag to include
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secret-parts-missing keys (or not) in the list.
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2002-11-05 David Shaw <dshaw@jabberwocky.com>
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* keyserver.c (keyserver_search_prompt): When --with-colons is
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12
g10/getkey.c
12
g10/getkey.c
@ -2286,6 +2286,9 @@ lookup( GETKEY_CTX ctx, KBNODE *ret_keyblock, int secmode )
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* b) to get the ultimately trusted keys.
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* The a) usage might have some problems.
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*
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* set with_subkeys true to include subkeys
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* set with_spm true to include secret-parts-missing keys
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*
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* Enumerate all primary secret keys. Caller must use these procedure:
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* 1) create a void pointer and initialize it to NULL
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* 2) pass this void pointer by reference to this function
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@ -2296,7 +2299,8 @@ lookup( GETKEY_CTX ctx, KBNODE *ret_keyblock, int secmode )
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* so that can free it's context.
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*/
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int
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enum_secret_keys( void **context, PKT_secret_key *sk, int with_subkeys )
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enum_secret_keys( void **context, PKT_secret_key *sk,
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int with_subkeys, int with_spm )
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{
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int rc=0;
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struct {
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@ -2331,9 +2335,11 @@ enum_secret_keys( void **context, PKT_secret_key *sk, int with_subkeys )
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do {
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/* get the next secret key from the current keyblock */
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for (; c->node; c->node = c->node->next) {
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if (c->node->pkt->pkttype == PKT_SECRET_KEY
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if ((c->node->pkt->pkttype == PKT_SECRET_KEY
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|| (with_subkeys
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&& c->node->pkt->pkttype == PKT_SECRET_SUBKEY) ) {
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&& c->node->pkt->pkttype == PKT_SECRET_SUBKEY) )
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&& !(c->node->pkt->pkt.secret_key->protect.s2k.mode==1001
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&& !with_spm)) {
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copy_secret_key (sk, c->node->pkt->pkt.secret_key );
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c->node = c->node->next;
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return 0; /* found */
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@ -212,7 +212,8 @@ int get_seckey_byfprint( PKT_secret_key *sk,
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const byte *fprint, size_t fprint_len);
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int get_seckey_next( GETKEY_CTX ctx, PKT_secret_key *sk, KBNODE *ret_keyblock );
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void get_seckey_end( GETKEY_CTX ctx );
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int enum_secret_keys( void **context, PKT_secret_key *sk, int with_subkeys );
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int enum_secret_keys( void **context, PKT_secret_key *sk,
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int with_subkeys, int with_spm );
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void merge_keys_and_selfsig( KBNODE keyblock );
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char*get_user_id_string( u32 *keyid );
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char*get_user_id_string_printable( u32 *keyid );
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@ -935,7 +935,8 @@ passphrase_clear_cache ( u32 *keyid, int algo )
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/****************
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* Get a passphrase for the secret key with KEYID, display TEXT
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* if the user needs to enter the passphrase.
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* mode 0 = standard, 2 = create new passphrase
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* mode 0 = standard, 1 = same but don't show key info,
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* 2 = create new passphrase
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* Returns: a DEK with a session key; caller must free
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* or NULL if the passphrase was not correctly repeated.
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* (only for mode 2)
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@ -996,7 +997,7 @@ passphrase_to_dek( u32 *keyid, int pubkey_algo,
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}
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}
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if( keyid && !opt.batch && !next_pw ) {
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if( keyid && !opt.batch && !next_pw && mode!=1 ) {
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PKT_public_key *pk = m_alloc_clear( sizeof *pk );
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size_t n;
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char *p;
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@ -85,12 +85,13 @@ get_session_key( PKT_pubkey_enc *k, DEK *dek )
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else { /* anonymous receiver: Try all available secret keys */
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void *enum_context = NULL;
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u32 keyid[2];
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char *p;
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for(;;) {
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if( sk )
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free_secret_key( sk );
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sk = m_alloc_clear( sizeof *sk );
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rc=enum_secret_keys( &enum_context, sk, 1);
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rc=enum_secret_keys( &enum_context, sk, 1, 0);
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if( rc ) {
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rc = G10ERR_NO_SECKEY;
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break;
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@ -100,7 +101,17 @@ get_session_key( PKT_pubkey_enc *k, DEK *dek )
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keyid_from_sk( sk, keyid );
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log_info(_("anonymous recipient; trying secret key %08lX ...\n"),
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(ulong)keyid[1] );
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rc = check_secret_key( sk, 1 ); /* ask only once */
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if(!opt.try_all_secrets && !is_status_enabled())
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{
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p=get_last_passphrase();
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set_next_passphrase(p);
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m_free(p);
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}
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rc = check_secret_key( sk, opt.try_all_secrets?1:-1 ); /* ask
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only
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once */
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if( !rc )
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rc = get_it( k, dek, sk, keyid );
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if( !rc ) {
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@ -108,7 +119,7 @@ get_session_key( PKT_pubkey_enc *k, DEK *dek )
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break;
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}
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}
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enum_secret_keys( &enum_context, NULL, 0 ); /* free context */
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enum_secret_keys( &enum_context, NULL, 0, 0 ); /* free context */
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}
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leave:
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@ -36,7 +36,7 @@
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static int
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do_check( PKT_secret_key *sk, const char *tryagain_text )
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do_check( PKT_secret_key *sk, const char *tryagain_text, int mode )
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{
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byte *buffer;
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u16 csum=0;
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@ -69,7 +69,7 @@ do_check( PKT_secret_key *sk, const char *tryagain_text )
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keyid[3] = sk->main_keyid[1];
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}
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dek = passphrase_to_dek( keyid, sk->pubkey_algo, sk->protect.algo,
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&sk->protect.s2k, 0, tryagain_text );
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&sk->protect.s2k, mode, tryagain_text );
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cipher_hd = cipher_open( sk->protect.algo,
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CIPHER_MODE_AUTO_CFB, 1);
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cipher_setkey( cipher_hd, dek->key, dek->keylen );
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@ -209,12 +209,21 @@ do_check( PKT_secret_key *sk, const char *tryagain_text )
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/****************
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* Check the secret key
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* Ask up to 3 (or n) times for a correct passphrase
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* If n is negative, disable the key info prompt and make n=abs(n)
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*/
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int
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check_secret_key( PKT_secret_key *sk, int n )
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{
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int rc = G10ERR_BAD_PASS;
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int i;
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int i,mode;
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if(n<0)
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{
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n=abs(n);
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mode=1;
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}
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else
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mode=0;
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if( n < 1 )
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n = (opt.batch && !opt.use_agent)? 1 : 3; /* use the default value */
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@ -225,7 +234,7 @@ check_secret_key( PKT_secret_key *sk, int n )
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tryagain = _("Invalid passphrase; please try again");
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log_info (_("%s ...\n"), tryagain);
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}
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rc = do_check( sk, tryagain );
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rc = do_check( sk, tryagain, mode );
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if( rc == G10ERR_BAD_PASS && is_status_enabled() ) {
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u32 kid[2];
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char buf[50];
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