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common: New helper functions for OpenPGP curve OIDs.

Browse source 
* common/openpgp-oid.c (openpgp_oidbuf_to_str): Factor most code out
to ...
(openpgp_oidbuf_to_str): new.
(openpgp_oidbuf_is_ed25519): New.
(openpgp_oidbuf_is_cv25519): New.
--

At some places it is more convenient (and faster) to directly work on
buffers and avoid the way via opaque MPIs.  These 3 new functions
allow for that.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 4a1558d0c7)
This commit is contained in:
Werner Koch 2019-01-29 18:19:05 +01:00
parent 9fd6ba268f
commit dddbb26155
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GPG key ID: E3FDFF218E45B72B
3 changed files with 66 additions and 34 deletions
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10
common/t-openpgp-oid.c
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@ -142,7 +142,15 @@ test_openpgp_oid_to_str (void)
fail (idx, 0);
xfree (string);
gcry_mpi_release (a);
}
/* Again using the buffer variant. */
string = openpgp_oidbuf_to_str (samples[idx].der, samples[idx].der[0]+1);
if (!string)
fail (idx, gpg_error_from_syserror ());
if (strcmp (string, samples[idx].string))
fail (idx, 0);
xfree (string);
}
}