Move BLAKE2 digests completely to the default provider

This leaves minimal implementations of EVP_blake2b512 and EVP_blake2s256,
that are now only there to provide a name for implicit fetches.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9075)

1 files changed, 54 insertions, 0 deletions

diff --git a/crypto/evp/legacy_blake2.c b/crypto/evp/legacy_blake2.c
new file mode 100644
index 0000000000..04b1e84865
--- /dev/null
+++ b/crypto/evp/legacy_blake2.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/opensslconf.h>
+
+#ifndef OPENSSL_NO_BLAKE2
+
+# include <openssl/obj_mac.h>
+# include "crypto/evp.h"
+# include "prov/blake2.h"        /* diverse BLAKE2 macros */
+
+static const EVP_MD blake2b_md = {
+    NID_blake2b512,
+    0,
+    BLAKE2B_DIGEST_LENGTH,
+    0,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    BLAKE2B_BLOCKBYTES,
+};
+
+const EVP_MD *EVP_blake2b512(void)
+{
+    return &blake2b_md;
+}
+
+static const EVP_MD blake2s_md = {
+    NID_blake2s256,
+    0,
+    BLAKE2S_DIGEST_LENGTH,
+    0,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    BLAKE2S_BLOCKBYTES,
+};
+
+const EVP_MD *EVP_blake2s256(void)
+{
+    return &blake2s_md;
+}
+
+#endif /* OPENSSL_NO_BLAKE2 */