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common: Extend the openpgp_curve_to_oid function.

* common/openpgp-oid.c (openpgp_curve_to_oid): Add optional arg R_NBITS.
Change all callers.
--

In particular for ed25519 and cv25519 it is quite useful to have an
ability to get the required algorithm.

(cherry picked from commit 24095101a5)
This commit is contained in:
Werner Koch 2020-02-11 14:38:03 +01:00
parent f3c98b8cb5
commit 5b8593135f
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
8 changed files with 24 additions and 14 deletions

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@ -1095,7 +1095,7 @@ pubkey_algo_string (gcry_sexp_t s_pkey, enum gcry_pk_algos *r_algoid)
{
const char *curve = gcry_pk_get_curve (s_pkey, 0, NULL);
const char *name = openpgp_oid_to_curve
(openpgp_curve_to_oid (curve, NULL), 0);
(openpgp_curve_to_oid (curve, NULL, NULL), 0);
if (name)
result = xtrystrdup (name);