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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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9
sm/gpgsm.h
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@ -325,8 +325,10 @@ char *gpgsm_format_keydesc (ksba_cert_t cert);
/*-- certcheck.c --*/
int gpgsm_check_cert_sig (ksba_cert_t issuer_cert, ksba_cert_t cert);
int gpgsm_check_cms_signature (ksba_cert_t cert, ksba_const_sexp_t sigval,
gcry_md_hd_t md, int hash_algo, int *r_pkalgo);
int gpgsm_check_cms_signature (ksba_cert_t cert, gcry_sexp_t sigval,
gcry_md_hd_t md,
int hash_algo, unsigned int pkalgoflags,
int *r_pkalgo);
/* fixme: move create functions to another file */
int gpgsm_create_cms_signature (ctrl_t ctrl,
ksba_cert_t cert, gcry_md_hd_t md, int mdalgo,
@ -472,6 +474,9 @@ gpg_error_t transform_sigval (const unsigned char *sigval, size_t sigvallen,
int mdalgo,
unsigned char **r_newsigval,
size_t *r_newsigvallen);
gcry_sexp_t gpgsm_ksba_cms_get_sig_val (ksba_cms_t cms, int idx);
int gpgsm_get_hash_algo_from_sigval (gcry_sexp_t sigval,
unsigned int *r_pkalgo_flags);