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sm: Exclude rsaPSS from de-vs compliance mode.

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* common/compliance.h (PK_ALGO_FLAG_RSAPSS): New.
* common/compliance.c (gnupg_pk_is_compliant): Add arg alog_flags and
test rsaPSS.  Adjust all callers.
(gnupg_pk_is_allowed): Ditto.
* sm/misc.c (gpgsm_ksba_cms_get_sig_val): New wrapper function.
(gpgsm_get_hash_algo_from_sigval): New.
* sm/certcheck.c (gpgsm_check_cms_signature): Change type of sigval
arg.  Add arg pkalgoflags.  Use the PK_ALGO_FLAG_RSAPSS.
* sm/verify.c (gpgsm_verify): Use the new wrapper and new fucntion to
also get the algo flags.  Pass algo flags along.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2020-07-03 15:47:55 +02:00
parent c1663c690b
commit 969abcf40c
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
16 changed files with 175 additions and 89 deletions
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6
g10/encrypt.c
View file

@ -785,15 +785,15 @@ encrypt_crypt (ctrl_t ctrl, int filefd, const char *filename,
PKT_public_key *pk = pkr->pk;
unsigned int nbits = nbits_from_pk (pk);
if (!gnupg_pk_is_compliant (opt.compliance,
pk->pubkey_algo, pk->pkey, nbits, NULL))
if (!gnupg_pk_is_compliant (opt.compliance, pk->pubkey_algo, 0,
pk->pkey, nbits, NULL))
log_info (_("WARNING: key %s is not suitable for encryption"
" in %s mode\n"),
keystr_from_pk (pk),
gnupg_compliance_option_string (opt.compliance));
if (compliant
&& !gnupg_pk_is_compliant (CO_DE_VS, pk->pubkey_algo, pk->pkey,
&& !gnupg_pk_is_compliant (CO_DE_VS, pk->pubkey_algo, 0, pk->pkey,
nbits, NULL))
compliant = 0;
}

2
g10/keylist.c
View file

@ -1390,7 +1390,7 @@ print_compliance_flags (PKT_public_key *pk,
es_fputs (gnupg_status_compliance_flag (CO_GNUPG), es_stdout);
any++;
}
if (gnupg_pk_is_compliant (CO_DE_VS, pk->pubkey_algo, pk->pkey,
if (gnupg_pk_is_compliant (CO_DE_VS, pk->pubkey_algo, 0, pk->pkey,
keylength, curvename))
{
es_fprintf (es_stdout, any ? " %s" : "%s",

8
g10/mainproc.c
View file

@ -702,8 +702,8 @@ proc_encrypted (CTX c, PACKET *pkt)
memset (pk, 0, sizeof *pk);
pk->pubkey_algo = i->pubkey_algo;
if (get_pubkey (c->ctrl, pk, i->keyid) != 0
|| ! gnupg_pk_is_compliant (CO_DE_VS, pk->pubkey_algo, pk->pkey,
nbits_from_pk (pk), NULL))
|| ! gnupg_pk_is_compliant (CO_DE_VS, pk->pubkey_algo, 0,
pk->pkey, nbits_from_pk (pk), NULL))
compliant = 0;
release_public_key_parts (pk);
}
@ -2449,7 +2449,7 @@ check_sig_and_print (CTX c, kbnode_t node)
/* Print compliance warning for Good signatures. */
if (!rc && pk && !opt.quiet
&& !gnupg_pk_is_compliant (opt.compliance, pk->pubkey_algo,
&& !gnupg_pk_is_compliant (opt.compliance, pk->pubkey_algo, 0,
pk->pkey, nbits_from_pk (pk), NULL))
{
log_info (_("WARNING: This key is not suitable for signing"
@ -2534,7 +2534,7 @@ check_sig_and_print (CTX c, kbnode_t node)
/* Compute compliance with CO_DE_VS. */
if (pk && is_status_enabled ()
&& gnupg_pk_is_compliant (CO_DE_VS, pk->pubkey_algo, pk->pkey,
&& gnupg_pk_is_compliant (CO_DE_VS, pk->pubkey_algo, 0, pk->pkey,
nbits_from_pk (pk), NULL)
&& gnupg_digest_is_compliant (CO_DE_VS, sig->digest_algo))
write_status_strings (STATUS_VERIFICATION_COMPLIANCE_MODE,

2
g10/pubkey-enc.c
View file

@ -96,7 +96,7 @@ get_session_key (ctrl_t ctrl, struct pubkey_enc_list *list, DEK *dek)
/* Check compliance. */
if (! gnupg_pk_is_allowed (opt.compliance, PK_USE_DECRYPTION,
sk->pubkey_algo,
sk->pubkey_algo, 0,
sk->pkey, nbits_from_pk (sk), NULL))
{
log_info (_("key %s is not suitable for decryption"

2
g10/sig-check.c
View file

@ -173,7 +173,7 @@ check_signature2 (ctrl_t ctrl,
else if (get_pubkey_for_sig (ctrl, pk, sig, forced_pk))
rc = gpg_error (GPG_ERR_NO_PUBKEY);
else if (!gnupg_pk_is_allowed (opt.compliance, PK_USE_VERIFICATION,
pk->pubkey_algo, pk->pkey,
pk->pubkey_algo, 0, pk->pkey,
nbits_from_pk (pk),
NULL))
{

3
g10/sign.c
View file

@ -456,7 +456,8 @@ do_sign (ctrl_t ctrl, PKT_public_key *pksk, PKT_signature *sig,
goto leave;
}
if (! gnupg_pk_is_allowed (opt.compliance, PK_USE_SIGNING, pksk->pubkey_algo,
if (! gnupg_pk_is_allowed (opt.compliance, PK_USE_SIGNING,
pksk->pubkey_algo, 0,
pksk->pkey, nbits_from_pk (pksk), NULL))
{
log_error (_("key %s may not be used for signing in %s mode\n"),