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Improved detection of bad/invalid signer keys.

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This commit is contained in:
Werner Koch 2009-08-06 20:12:00 +00:00
parent f27bdef888
commit 019601191a
13 changed files with 122 additions and 63 deletions
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23
g10/skclist.c
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@ -128,6 +128,8 @@ build_sk_list( strlist_t locusr, SK_LIST *ret_sk_list,
if( (rc = get_seckey_byname( sk, NULL, unlock )) ) {
free_secret_key( sk ); sk = NULL;
log_error("no default secret key: %s\n", g10_errstr(rc) );
write_status_text (STATUS_INV_SGNR,
get_inv_recpsgnr_code (GPG_ERR_NO_SECKEY));
}
else if( !(rc=openpgp_pk_test_algo2 (sk->pubkey_algo, use)) )
{
@ -138,6 +140,8 @@ build_sk_list( strlist_t locusr, SK_LIST *ret_sk_list,
log_info(_("key is not flagged as insecure - "
"can't use it with the faked RNG!\n"));
free_secret_key( sk ); sk = NULL;
write_status_text (STATUS_INV_SGNR,
get_inv_recpsgnr_code (GPG_ERR_NOT_TRUSTED));
}
else
{
@ -152,6 +156,7 @@ build_sk_list( strlist_t locusr, SK_LIST *ret_sk_list,
{
free_secret_key( sk ); sk = NULL;
log_error("invalid default secret key: %s\n", g10_errstr(rc) );
write_status_text (STATUS_INV_SGNR, get_inv_recpsgnr_code (rc));
}
}
else {
@ -176,6 +181,9 @@ build_sk_list( strlist_t locusr, SK_LIST *ret_sk_list,
free_secret_key( sk ); sk = NULL;
log_error(_("skipped \"%s\": %s\n"),
locusr->d, g10_errstr(rc) );
write_status_text_and_buffer
(STATUS_INV_SGNR, get_inv_recpsgnr_code (rc),
locusr->d, strlen (locusr->d), -1);
}
else if ( key_present_in_sk_list(sk_list, sk) == 0) {
free_secret_key(sk); sk = NULL;
@ -186,6 +194,9 @@ build_sk_list( strlist_t locusr, SK_LIST *ret_sk_list,
free_secret_key( sk ); sk = NULL;
log_error(_("skipped \"%s\": %s\n"),
locusr->d, g10_errstr(rc) );
write_status_text_and_buffer
(STATUS_INV_SGNR, get_inv_recpsgnr_code (rc),
locusr->d, strlen (locusr->d), -1);
}
else if( !(rc=openpgp_pk_test_algo2 (sk->pubkey_algo, use)) ) {
SK_LIST r;
@ -197,11 +208,19 @@ build_sk_list( strlist_t locusr, SK_LIST *ret_sk_list,
_("this is a PGP generated Elgamal key which"
" is not secure for signatures!"));
free_secret_key( sk ); sk = NULL;
write_status_text_and_buffer
(STATUS_INV_SGNR,
get_inv_recpsgnr_code (GPG_ERR_WRONG_KEY_USAGE),
locusr->d, strlen (locusr->d), -1);
}
else if( random_is_faked() && !is_insecure( sk ) ) {
log_info(_("key is not flagged as insecure - "
"can't use it with the faked RNG!\n"));
free_secret_key( sk ); sk = NULL;
write_status_text_and_buffer
(STATUS_INV_SGNR,
get_inv_recpsgnr_code (GPG_ERR_NOT_TRUSTED),
locusr->d, strlen (locusr->d), -1);
}
else {
r = xmalloc( sizeof *r );
@ -214,6 +233,9 @@ build_sk_list( strlist_t locusr, SK_LIST *ret_sk_list,
else {
free_secret_key( sk ); sk = NULL;
log_error("skipped \"%s\": %s\n", locusr->d, g10_errstr(rc) );
write_status_text_and_buffer
(STATUS_INV_SGNR, get_inv_recpsgnr_code (rc),
locusr->d, strlen (locusr->d), -1);
}
}
}
@ -221,6 +243,7 @@ build_sk_list( strlist_t locusr, SK_LIST *ret_sk_list,
if( !rc && !sk_list ) {
log_error("no valid signators\n");
write_status_text (STATUS_NO_SGNR, "0");
rc = G10ERR_NO_USER_ID;
}