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common: Extend the openpgp_curve_to_oid function.

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* 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
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GPG key ID: E3FDFF218E45B72B
8 changed files with 24 additions and 14 deletions
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common/util.h
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@ -244,7 +244,8 @@ int openpgp_oidbuf_is_ed25519 (const void *buf, size_t len);
int openpgp_oid_is_ed25519 (gcry_mpi_t a);
int openpgp_oidbuf_is_cv25519 (const void *buf, size_t len);
int openpgp_oid_is_cv25519 (gcry_mpi_t a);
const char *openpgp_curve_to_oid (const char *name, unsigned int *r_nbits);
const char *openpgp_curve_to_oid (const char *name,
unsigned int *r_nbits, int *r_algo);
const char *openpgp_oid_to_curve (const char *oid, int canon);
const char *openpgp_enum_curves (int *idxp);
const char *openpgp_is_curve_supported (const char *name,