pk: Move s-expr creation for sign and encrypt to the modules.

* cipher/pubkey.c (pubkey_encrypt): Fold into gcry_pk_encrypt.
(pubkey_decrypt): Fold into gcry_pk_decrypt.
(pubkey_sign): Fold into gcry_pk_sign.
(pubkey_verify): Fold into gcry_pk_verify.
(octet_string_from_mpi): Make it a wrapper and factor code out to ...
* mpi/mpicoder.c (_gcry_mpi_to_octet_string): New function.

* src/cipher.h (PUBKEY_FLAG_FIXEDLEN): New.
* cipher/pubkey.c (sexp_data_to_mpi): Set flag for some encodings.
(gcry_pk_encrypt): Simply by moving the s-expr generation to the modules.
(gcry_pk_sign): Ditto.
* cipher/dsa.c (dsa_sign): Create s-expr.
* cipher/elgamal.c (elg_encrypt, elg_sign): Ditto.
* cipher/rsa.c (rsa_encrypt, rsa_sign): Ditto.
* cipher/ecc.c (ecc_sign, ecc_encrypt_raw): Ditto.
(ecdsa_names): Add "eddsa".
* tests/t-ed25519.c (one_test): Expect "eddsa" token.

Signed-off-by: Werner Koch <wk@gnupg.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/mpi.h b/src/mpi.h
index f24e9681..34669517 100644
--- a/src/mpi.h
+++ b/src/mpi.h
@@ -167,6 +167,9 @@ byte *_gcry_mpi_get_secure_buffer (gcry_mpi_t a, unsigned int fill_le,
                                    unsigned *r_nbytes, int *sign);
 void  _gcry_mpi_set_buffer ( gcry_mpi_t a, const void *buffer,
                              unsigned int nbytes, int sign );
+gpg_err_code_t _gcry_mpi_to_octet_string (unsigned char **r_frame,
+                                          void *space,
+                                          gcry_mpi_t value, size_t nbytes);
 
 /*-- mpi-add.c --*/
 #define mpi_add_ui(w,u,v) gcry_mpi_add_ui((w),(u),(v))