Werner Koch
b203325ce1
gpg: Allow ECDH with a smartcard returning just the x-coordinate.
...
* g10/ecdh.c (pk_ecdh_encrypt_with_shared_point): Factor extraction
part out to ...
(extract_secret_x): new. Allow for x-only coordinate.
(pk_ecdh_encrypt_with_shared_point): Change arg shared_mpi
to (shared,nshared). Move param check to the top. Add extra safety
check.
(pk_ecdh_decrypt): Adjust for change.
* g10/pkglue.c (get_data_from_sexp): New.
(pk_encrypt): Use it for "s" and adjusted for changed
pk_ecdh_encrypt_with_shared_point.
* g10/pubkey-enc.c (get_it): Remove conversion to an MPI and call
pk_ecdh_decrypt with the frame buffer.
--
Backported-from-master: f129b0e97730b47d62482fba9599db39b526f3d2)
Signed-off-by: Werner Koch <wk@gnupg.org>
2021-05-04 11:51:34 +02:00
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