/**********************************************************************
* md_gost.c *
* Copyright (c) 2005-2006 Cryptocom LTD *
+ * Copyright (c) 2020 Vitaly Chikunov <vt@altlinux.org> *
* This file is distributed under the same license as OpenSSL *
* *
* OpenSSL interface to GOST R 34.11-94 hash functions *
static int gost_digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from);
static int gost_digest_cleanup(EVP_MD_CTX *ctx);
-static EVP_MD *_hidden_GostR3411_94_md = NULL;
+GOST_digest GostR3411_94_digest = {
+ .nid = NID_id_GostR3411_94,
+ .result_size = 32,
+ .input_blocksize = 32,
+ .app_datasize = sizeof(struct ossl_gost_digest_ctx),
+ .init = gost_digest_init,
+ .update = gost_digest_update,
+ .final = gost_digest_final,
+ .copy = gost_digest_copy,
+ .cleanup = gost_digest_cleanup,
+};
-EVP_MD *digest_gost(void)
+/*
+ * Single level template accessor.
+ * Note: that you cannot template 0 value.
+ */
+#define TPL(st,field) ( \
+ ((st)->field) ? ((st)->field) : TPL_VAL(st,field) \
+)
+
+#define TPL_VAL(st,field) ( \
+ ((st)->template ? (st)->template->field : 0) \
+)
+
+EVP_MD *GOST_init_digest(GOST_digest *d)
{
- if (_hidden_GostR3411_94_md == NULL) {
- EVP_MD *md;
+ if (d->digest)
+ return d->digest;
- if ((md = EVP_MD_meth_new(NID_id_GostR3411_94, NID_undef)) == NULL
-#if (OPENSSL_VERSION_NUMBER <= 0x10002100L)
- || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_PKEY_METHOD_SIGNATURE)
-#endif
- || !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;
+ EVP_MD *md;
+ if (!(md = EVP_MD_meth_new(d->nid, NID_undef))
+ || !EVP_MD_meth_set_result_size(md, TPL(d, result_size))
+ || !EVP_MD_meth_set_input_blocksize(md, TPL(d, input_blocksize))
+ || !EVP_MD_meth_set_app_datasize(md, TPL(d, app_datasize))
+ || !EVP_MD_meth_set_flags(md, d->flags | TPL_VAL(d, flags))
+ || !EVP_MD_meth_set_init(md, TPL(d, init))
+ || !EVP_MD_meth_set_update(md, TPL(d, update))
+ || !EVP_MD_meth_set_final(md, TPL(d, final))
+ || !EVP_MD_meth_set_copy(md, TPL(d, copy))
+ || !EVP_MD_meth_set_cleanup(md, TPL(d, cleanup))
+ || !EVP_MD_meth_set_ctrl(md, TPL(d, ctrl))) {
+ EVP_MD_meth_free(md);
+ md = NULL;
}
- return _hidden_GostR3411_94_md;
+ if (md && d->alias)
+ EVP_add_digest_alias(EVP_MD_name(md), d->alias);
+ d->digest = md;
+ return md;
}
-void digest_gost_destroy(void)
+void GOST_deinit_digest(GOST_digest *d)
{
- EVP_MD_meth_free(_hidden_GostR3411_94_md);
- _hidden_GostR3411_94_md = NULL;
+ if (d->alias)
+ EVP_delete_digest_alias(d->alias);
+ EVP_MD_meth_free(d->digest);
+ d->digest = NULL;
}
-int gost_digest_init(EVP_MD_CTX *ctx)
+static int gost_digest_init(EVP_MD_CTX *ctx)
{
struct ossl_gost_digest_ctx *c = EVP_MD_CTX_md_data(ctx);
memset(&(c->dctx), 0, sizeof(gost_hash_ctx));
return 1;
}
-int gost_digest_update(EVP_MD_CTX *ctx, const void *data, size_t count)
+static int gost_digest_update(EVP_MD_CTX *ctx, const void *data, size_t 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)
+static int gost_digest_final(EVP_MD_CTX *ctx, unsigned char *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)
+static int gost_digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from)
{
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)) {
return 1;
}
-int gost_digest_cleanup(EVP_MD_CTX *ctx)
+static int gost_digest_cleanup(EVP_MD_CTX *ctx)
{
if (EVP_MD_CTX_md_data(ctx))
memset(EVP_MD_CTX_md_data(ctx), 0,
sizeof(struct ossl_gost_digest_ctx));
return 1;
}
+/* vim: set expandtab cinoptions=\:0,l1,t0,g0,(0 sw=4 : */