Remove legacy sign/verify from EVP_MD.

This removes m_dss.c, m_dss1.c, and m_ecdsa.c and the corresponding
public API EVP_{dss,dss1,ecdsa}().

This is basically the following OpenSSL commit. The mentioned change in
RSA is already present in rsa/rsa_pmeth.c.

ok inoguchi jsing

commit 7f572e958b13041056f377a62d3219633cfb1e8a
Author: Dr. Stephen Henson <steve@openssl.org>
Date:   Wed Dec 2 13:57:04 2015 +0000

    Remove legacy sign/verify from EVP_MD.

    Remove sign/verify and required_pkey_type fields of EVP_MD: these are a
    legacy from when digests were linked to public key types. All signing is
    now handled by the corresponding EVP_PKEY_METHOD.

    Only allow supported digest types in RSA EVP_PKEY_METHOD: other algorithms
    already block unsupported types.

    Remove now obsolete EVP_dss1() and EVP_ecdsa().

    Reviewed-by: Richard Levitte <levitte@openssl.org>

Plus OpenSSL commit 625a9baf11c1dd94f17e5876b6ee8d6271b3921d for m_dss.c

1 files changed, 2 insertions, 9 deletions

diff --git a/src/lib/libcrypto/evp/m_sm3.c b/src/lib/libcrypto/evp/m_sm3.c
index 614be5d780..ae8b342e82 100644
--- a/src/lib/libcrypto/evp/m_sm3.c
+++ b/src/lib/libcrypto/evp/m_sm3.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: m_sm3.c,v 1.2 2021/12/12 21:30:13 tb Exp $    */
+/*      $OpenBSD: m_sm3.c,v 1.3 2022/01/14 08:38:06 tb Exp $    */
 /*
  * Copyright (c) 2018, Ribose Inc
  *
@@ -49,19 +49,12 @@ static const EVP_MD sm3_md = {
         .type = NID_sm3,
         .pkey_type = NID_sm3WithRSAEncryption,
         .md_size = SM3_DIGEST_LENGTH,
-        .flags = EVP_MD_FLAG_PKEY_METHOD_SIGNATURE|EVP_MD_FLAG_DIGALGID_ABSENT,
+        .flags = EVP_MD_FLAG_DIGALGID_ABSENT,
         .init = sm3_init,
         .update = sm3_update,
         .final = sm3_final,
         .copy = NULL,
         .cleanup = NULL,
-#ifndef OPENSSL_NO_RSA
-        .sign = (evp_sign_method *)RSA_sign,
-        .verify = (evp_verify_method *)RSA_verify,
-        .required_pkey_type = {
-                EVP_PKEY_RSA, EVP_PKEY_RSA2, 0, 0,
-        },
-#endif
         .block_size = SM3_CBLOCK,
         .ctx_size = sizeof(EVP_MD *) + sizeof(SM3_CTX),
 };