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-rw-r--r--g10/sig-check.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/g10/sig-check.c b/g10/sig-check.c
index 19906e29d..ef97e17d4 100644
--- a/g10/sig-check.c
+++ b/g10/sig-check.c
@@ -33,6 +33,7 @@
#include "../common/i18n.h"
#include "options.h"
#include "pkglue.h"
+#include "../common/compliance.h"
static int check_signature_end (PKT_public_key *pk, PKT_signature *sig,
gcry_md_hd_t digest,
@@ -132,6 +133,15 @@ check_signature2 (ctrl_t ctrl,
if ( (rc=openpgp_md_test_algo(sig->digest_algo)) )
; /* We don't have this digest. */
+ else if (! gnupg_digest_is_allowed (opt.compliance, 0, sig->digest_algo))
+ {
+ /* Compliance failure. */
+ log_info (_ ("you may not use digest algorithm '%s'"
+ " while in %s mode\n"),
+ gcry_md_algo_name (sig->digest_algo),
+ gnupg_compliance_option_string (opt.compliance));
+ rc = gpg_error (GPG_ERR_DIGEST_ALGO);
+ }
else if ((rc=openpgp_pk_test_algo(sig->pubkey_algo)))
; /* We don't have this pubkey algo. */
else if (!gcry_md_is_enabled (digest,sig->digest_algo))
@@ -146,6 +156,15 @@ check_signature2 (ctrl_t ctrl,
}
else if( get_pubkey (ctrl, pk, sig->keyid ) )
rc = gpg_error (GPG_ERR_NO_PUBKEY);
+ else if (! gnupg_pk_is_allowed (opt.compliance, PK_USE_VERIFICATION,
+ pk->pubkey_algo, pk->pkey, nbits_from_pk (pk),
+ NULL))
+ {
+ /* Compliance failure. */
+ log_info ("key %s not suitable for signature verification while in %s mode\n",
+ keystr_from_pk (pk), gnupg_compliance_option_string (opt.compliance));
+ rc = gpg_error (GPG_ERR_PUBKEY_ALGO);
+ }
else if(!pk->flags.valid)
{
/* You cannot have a good sig from an invalid key. */