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common: Add OpenPGP<->Gcrypt pubkey id mapping functions.

Browse source 
* g10/misc.c (map_pk_gcry_to_openpgp): Move to ...
* common/openpgp-oid.c (map_gcry_pk_to_openpgp): here and rename.
Change all 4 callers.
(map_openpgp_pk_to_gcry): New.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2020-02-09 14:00:57 +01:00
parent 9df9996b41
commit 49c891a9bf
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
5 changed files with 41 additions and 21 deletions
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30
common/openpgp-oid.c
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@ -462,3 +462,33 @@ openpgp_is_curve_supported (const char *name, int *r_algo,
}
return NULL;
}
/* Map a Gcrypt public key algorithm number to the used by OpenPGP.
* Returns 0 for unknown gcry algorithm. */
pubkey_algo_t
map_gcry_pk_to_openpgp (enum gcry_pk_algos algo)
{
switch (algo)
{
case GCRY_PK_EDDSA: return PUBKEY_ALGO_EDDSA;
case GCRY_PK_ECDSA: return PUBKEY_ALGO_ECDSA;
case GCRY_PK_ECDH: return PUBKEY_ALGO_ECDH;
default: return algo < 110 ? (pubkey_algo_t)algo : 0;
}
}
/* Map an OpenPGP public key algorithm number to the one used by
* Libgcrypt. Returns 0 for unknown gcry algorithm. */
enum gcry_pk_algos
map_openpgp_pk_to_gcry (pubkey_algo_t algo)
{
switch (algo)
{
case PUBKEY_ALGO_EDDSA: return GCRY_PK_EDDSA;
case PUBKEY_ALGO_ECDSA: return GCRY_PK_ECDSA;
case PUBKEY_ALGO_ECDH: return GCRY_PK_ECDH;
default: return algo < 110 ? algo : 0;
}
}