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gpg: Add option --assert-pubkey_algo.

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* g10/keyid.c (parse_one_algo_string): New.
(compare_pubkey_string_part): New.
(compare_pubkey_string): New.
* g10/verify.c (check_assert_signer_list): New.
* g10/mainproc.c (check_sig_and_print): Call check_assert_pubkey_algo.
* g10/options.h (opt): Add field assert_pubkey_algos.
* g10/gpg.c (oAssertPubkeyAlgo): New.
(opts): Add "--assert-pubkey_algo".
(assert_pubkey_algo_false): New.
(main): Parse option.
(g10_exit): Reorder RC modifications.  Check assert_pubkey_algo_false.
* common/status.h (ASSERT_PUBKEY_ALGOS): new.
* common/t-support.h (LEAN_T_SUPPORT): Use a simplified version if
this macro is set.

* g10/gpgv.c (oAssertPubkeyAlgo): New.
(opts): Add "--assert-pubkey_algo".
(assert_pubkey_algo_false): New.
(main): Parse option.
(g10_exit): Check assert_pubkey_algo_false.

* g10/t-keyid.c: New.
* g10/Makefile.am: Add t-keyid.
* g10/test-stubs.c: Add assert_pubkey_algos and assert_signer_list and
remove from other tests.
(check_assert_signer_list): Ditto.
(check_assert_pubkey_algo): Ditto.
--

GnuPG-bug-id: 6946
This commit is contained in:
Werner Koch 2024-02-10 14:24:50 +01:00
parent 5842eee805
commit 302afcb6f6
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
20 changed files with 424 additions and 58 deletions
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19
g10/mainproc.c
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@ -1876,6 +1876,8 @@ check_sig_and_print (CTX c, kbnode_t node)
const void *extrahash = NULL;
size_t extrahashlen = 0;
kbnode_t included_keyblock = NULL;
char pkstrbuf[PUBKEY_STRING_SIZE] = { 0 };
if (opt.skip_verify)
{
@ -2409,8 +2411,14 @@ check_sig_and_print (CTX c, kbnode_t node)
show_notation (sig, 0, 2, 0);
}
/* Fill PKSTRBUF with the algostring in case we later need it. */
if (pk)
pubkey_string (pk, pkstrbuf, sizeof pkstrbuf);
/* For good signatures print the VALIDSIG status line. */
if (!rc && (is_status_enabled () || opt.assert_signer_list) && pk)
if (!rc && (is_status_enabled ()
|| opt.assert_signer_list
|| opt.assert_pubkey_algos) && pk)
{
char pkhex[MAX_FINGERPRINT_LEN*2+1];
char mainpkhex[MAX_FINGERPRINT_LEN*2+1];
@ -2432,6 +2440,8 @@ check_sig_and_print (CTX c, kbnode_t node)
mainpkhex);
/* Handle the --assert-signer option. */
check_assert_signer_list (mainpkhex, pkhex);
/* Handle the --assert-pubkey-algo option. */
check_assert_pubkey_algo (pkstrbuf, pkhex);
}
/* Print compliance warning for Good signatures. */
@ -2464,13 +2474,6 @@ check_sig_and_print (CTX c, kbnode_t node)
if (opt.verbose)
{
char pkstrbuf[PUBKEY_STRING_SIZE];
if (pk)
pubkey_string (pk, pkstrbuf, sizeof pkstrbuf);
else
*pkstrbuf = 0;
log_info (_("%s signature, digest algorithm %s%s%s\n"),
sig->sig_class==0x00?_("binary"):
sig->sig_class==0x01?_("textmode"):_("unknown"),