ecc: Add flags "noparam" and "comp".

* src/cipher.h (PUBKEY_FLAG_NOPARAM, PUBKEY_FLAG_COMP): New.
* cipher/pubkey-util.c (_gcry_pk_util_parse_flaglist): Parse new flags
and change code for possible faster parsing.
* cipher/ecc.c (ecc_generate): Implement the "noparam" flag.
(ecc_sign): Ditto.
(ecc_verify): Ditto.
* tests/keygen.c (check_ecc_keys): Use the "noparam" flag.

* cipher/ecc.c (ecc_generate): Fix parsing of the deprecated
transient-flag parameter.
(ecc_verify): Do not make Q optional in the extract-param call.
--

Note that the "comp" flag has not yet any effect.

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

1 files changed, 17 insertions, 1 deletions

diff --git a/tests/keygen.c b/tests/keygen.c
index 5ab8e9d6..18fe2117 100644
--- a/tests/keygen.c
+++ b/tests/keygen.c
@@ -375,7 +375,8 @@ check_ecc_keys (void)
       if (verbose)
         show ("creating ECC key using curve %s\n", curves[testno]);
       rc = gcry_sexp_build (&keyparm, NULL,
-                            "(genkey(ecc(curve %s)))", curves[testno]);
+                            "(genkey(ecc(curve %s)(flags noparam)))",
+                            curves[testno]);
       if (rc)
         die ("error creating S-expression: %s\n", gpg_strerror (rc));
       rc = gcry_pk_genkey (&key, keyparm);
@@ -410,6 +411,21 @@ check_ecc_keys (void)
   if (verbose > 1)
     show_sexp ("ECC key:\n", key);
 
+  if (verbose)
+    show ("creating ECC key using curve Ed25519 for ECDSA\n");
+  rc = gcry_sexp_build (&keyparm, NULL,
+                        "(genkey(ecc(curve Ed25519)(flags noparam ecdsa)))");
+  if (rc)
+    die ("error creating S-expression: %s\n", gpg_strerror (rc));
+  rc = gcry_pk_genkey (&key, keyparm);
+  gcry_sexp_release (keyparm);
+  if (rc)
+    die ("error generating ECC key using curve Ed25519 for ECDSA: %s\n",
+         gpg_strerror (rc));
+
+  if (verbose > 1)
+    show_sexp ("ECC key:\n", key);
+
   gcry_sexp_release (key);
 }