Partial port of EC_KEY_METHOD from OpenSSL 1.1.

This commit adds init/free, support for signing, setting and
getting the method, engine support as well as extra data.

from markus

1 files changed, 16 insertions, 22 deletions

diff --git a/src/lib/libcrypto/ecdsa/ecs_sign.c b/src/lib/libcrypto/ecdsa/ecs_sign.c
index 029a0cb562..5beb853b94 100644
--- a/src/lib/libcrypto/ecdsa/ecs_sign.c
+++ b/src/lib/libcrypto/ecdsa/ecs_sign.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ecs_sign.c,v 1.6 2015/02/08 13:35:07 jsing Exp $ */
+/* $OpenBSD: ecs_sign.c,v 1.7 2019/01/19 01:07:00 tb Exp $ */
 /* ====================================================================
  * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
  *
@@ -55,11 +55,13 @@
 
 #include <openssl/opensslconf.h>
 
-#include "ecs_locl.h"
 #ifndef OPENSSL_NO_ENGINE
 #include <openssl/engine.h>
 #endif
 
+#include "ecs_locl.h"
+#include "ec_lcl.h"
+
 ECDSA_SIG *
 ECDSA_do_sign(const unsigned char *dgst, int dlen, EC_KEY *eckey)
 {
@@ -70,11 +72,10 @@ ECDSA_SIG *
 ECDSA_do_sign_ex(const unsigned char *dgst, int dlen, const BIGNUM *kinv,
     const BIGNUM *rp, EC_KEY *eckey)
 {
-        ECDSA_DATA *ecdsa = ecdsa_check(eckey);
-
-        if (ecdsa == NULL)
-                return NULL;
-        return ecdsa->meth->ecdsa_do_sign(dgst, dlen, kinv, rp, eckey);
+        if (eckey->meth->sign_sig != NULL)
+                return eckey->meth->sign_sig(dgst, dlen, kinv, rp, eckey);
+        ECDSAerror(EVP_R_METHOD_NOT_SUPPORTED);
+        return 0;
 }
 
 int
@@ -88,24 +89,17 @@ int
 ECDSA_sign_ex(int type, const unsigned char *dgst, int dlen, unsigned char *sig,
     unsigned int *siglen, const BIGNUM *kinv, const BIGNUM *r, EC_KEY *eckey)
 {
-        ECDSA_SIG *s;
-
-        s = ECDSA_do_sign_ex(dgst, dlen, kinv, r, eckey);
-        if (s == NULL) {
-                *siglen = 0;
-                return 0;
-        }
-        *siglen = i2d_ECDSA_SIG(s, &sig);
-        ECDSA_SIG_free(s);
-        return 1;
+        if (eckey->meth->sign != NULL)
+                return eckey->meth->sign(type, dgst, dlen, sig, siglen, kinv, r, eckey);
+        ECDSAerror(EVP_R_METHOD_NOT_SUPPORTED);
+        return 0;
 }
 
 int
 ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp)
 {
-        ECDSA_DATA *ecdsa = ecdsa_check(eckey);
-
-        if (ecdsa == NULL)
-                return 0;
-        return ecdsa->meth->ecdsa_sign_setup(eckey, ctx_in, kinvp, rp);
+        if (eckey->meth->sign_setup != NULL)
+                return eckey->meth->sign_setup(eckey, ctx_in, kinvp, rp);
+        ECDSAerror(EVP_R_METHOD_NOT_SUPPORTED);
+        return 0;
 }