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gpgsm: Support ECDSA in de-vs mode.

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* common/compliance.h (PK_ALGO_FLAG_ECC18): New.
* common/compliance.c (gnupg_pk_is_allowed): Implement.
* sm/decrypt.c (gpgsm_decrypt): Pass new flag.
* sm/sign.c (gpgsm_sign): Ditto.
* sm/verify.c (gpgsm_verify): Ditto.
--

GnuPG-bug-id: 6802
This commit is contained in:
Werner Koch 2023-11-08 17:09:04 +01:00
parent bf7b785b0e
commit 3572b19fbd
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
6 changed files with 19 additions and 5 deletions
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13
common/compliance.c
View file

@ -256,6 +256,13 @@ gnupg_pk_is_allowed (enum gnupg_compliance_mode compliance,
if (! initialized)
return 1;
/* Map the the generic ECC algo to ECDSA if requested. */
if ((algo_flags & PK_ALGO_FLAG_ECC18)
&& algo == GCRY_PK_ECC
&& (use == PK_USE_VERIFICATION
|| use == PK_USE_SIGNING))
algo = GCRY_PK_ECDSA;
switch (compliance)
{
case CO_DE_VS:
@ -280,7 +287,6 @@ gnupg_pk_is_allowed (enum gnupg_compliance_mode compliance,
default:
log_assert (!"reached");
}
(void)algo_flags;
break;
case PUBKEY_ALGO_DSA:
@ -301,7 +307,7 @@ gnupg_pk_is_allowed (enum gnupg_compliance_mode compliance,
result = (use == PK_USE_DECRYPTION);
break;
case PUBKEY_ALGO_ECDH:
case PUBKEY_ALGO_ECDH: /* Same value as GCRY_PK_ECC, i.e. 18 */
case GCRY_PK_ECDH:
if (use == PK_USE_DECRYPTION)
result = 1;
@ -549,6 +555,9 @@ gnupg_rng_is_compliant (enum gnupg_compliance_mode compliance)
int *result;
int res;
/* #warning debug code ahead */
/* return 1; */
result = get_compliance_cache (compliance, 1);
if (result && *result != -1)

1
common/compliance.h
View file

@ -50,6 +50,7 @@ enum pk_use_case
/* Flags to distinguish public key algorithm variants. */
#define PK_ALGO_FLAG_RSAPSS 1 /* Use rsaPSS padding. */
#define PK_ALGO_FLAG_ECC18 256 /* GCRY_PK_ECC is used in a generic way. */
int gnupg_pk_is_compliant (enum gnupg_compliance_mode compliance, int algo,