openssl 1.1.0 compatibility

[openssl-gost/engine.git] / gost_md.c

diff --git a/gost_md.c b/gost_md.c
index 1ccc6be0e9441ce0f8bf32936b050369464f9fd3..54a2fe511f4912a12bb0b573c03edb32a76088c0 100644 (file)
--- a/gost_md.c
+++ b/gost_md.c
@@ -19,27 +19,40 @@ static int gost_digest_final(EVP_MD_CTX *ctx, unsigned char *md);
 static int gost_digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from);
 static int gost_digest_cleanup(EVP_MD_CTX *ctx);
 
-EVP_MD digest_gost = {
-    NID_id_GostR3411_94,
-    NID_undef,
-    32,
-    EVP_MD_FLAG_PKEY_METHOD_SIGNATURE,
-    gost_digest_init,
-    gost_digest_update,
-    gost_digest_final,
-    gost_digest_copy,
-    gost_digest_cleanup,
-    NULL,
-    NULL,
-    {NID_undef, NID_undef, 0, 0, 0},
-    32,
-    sizeof(struct ossl_gost_digest_ctx),
-    NULL
-};
+static EVP_MD *_hidden_GostR3411_94_md = NULL;
+
+EVP_MD *digest_gost(void)
+{
+    if (_hidden_GostR3411_94_md == NULL) {
+        EVP_MD *md;
+
+        if ((md = EVP_MD_meth_new(NID_id_GostR3411_94, NID_undef)) == NULL
+            || !EVP_MD_meth_set_result_size(md, 32)
+            || !EVP_MD_meth_set_input_blocksize(md, 32)
+            || !EVP_MD_meth_set_app_datasize(md,
+                                             sizeof(struct ossl_gost_digest_ctx))
+            || !EVP_MD_meth_set_init(md, gost_digest_init)
+            || !EVP_MD_meth_set_update(md, gost_digest_update)
+            || !EVP_MD_meth_set_final(md, gost_digest_final)
+            || !EVP_MD_meth_set_copy(md, gost_digest_copy)
+            || !EVP_MD_meth_set_cleanup(md, gost_digest_cleanup)) {
+            EVP_MD_meth_free(md);
+            md = NULL;
+        }
+        _hidden_GostR3411_94_md = md;
+    }
+    return _hidden_GostR3411_94_md;
+}
+
+void digest_gost_destroy(void)
+{
+    EVP_MD_meth_free(_hidden_GostR3411_94_md);
+    _hidden_GostR3411_94_md = NULL;
+}
 
 int gost_digest_init(EVP_MD_CTX *ctx)
 {
-    struct ossl_gost_digest_ctx *c = ctx->md_data;
+    struct ossl_gost_digest_ctx *c = EVP_MD_CTX_md_data(ctx);
     memset(&(c->dctx), 0, sizeof(gost_hash_ctx));
     gost_init(&(c->cctx), &GostR3411_94_CryptoProParamSet);
     c->dctx.cipher_ctx = &(c->cctx);
@@ -48,20 +61,20 @@ int gost_digest_init(EVP_MD_CTX *ctx)
 
 int gost_digest_update(EVP_MD_CTX *ctx, const void *data, size_t count)
 {
-    return hash_block((gost_hash_ctx *) ctx->md_data, data, count);
+    return hash_block((gost_hash_ctx *) EVP_MD_CTX_md_data(ctx), data, count);
 }
 
 int gost_digest_final(EVP_MD_CTX *ctx, unsigned char *md)
 {
-    return finish_hash((gost_hash_ctx *) ctx->md_data, md);
+    return finish_hash((gost_hash_ctx *) EVP_MD_CTX_md_data(ctx), md);
 
 }
 
 int gost_digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from)
 {
-    struct ossl_gost_digest_ctx *md_ctx = to->md_data;
-    if (to->md_data && from->md_data) {
-        memcpy(to->md_data, from->md_data,
+    struct ossl_gost_digest_ctx *md_ctx = EVP_MD_CTX_md_data(to);
+    if (EVP_MD_CTX_md_data(to) && EVP_MD_CTX_md_data(from)) {
+        memcpy(EVP_MD_CTX_md_data(to), EVP_MD_CTX_md_data(from),
                sizeof(struct ossl_gost_digest_ctx));
         md_ctx->dctx.cipher_ctx = &(md_ctx->cctx);
     }
@@ -70,7 +83,7 @@ int gost_digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from)
 
 int gost_digest_cleanup(EVP_MD_CTX *ctx)
 {
-    if (ctx->md_data)
-        memset(ctx->md_data, 0, sizeof(struct ossl_gost_digest_ctx));
+    if (EVP_MD_CTX_md_data(ctx))
+        memset(EVP_MD_CTX_md_data(ctx), 0, sizeof(struct ossl_gost_digest_ctx));
     return 1;
 }