Review comments

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>

1 files changed, 60 insertions, 0 deletions

diff --git a/crypto/blake2/m_blake2s.c b/crypto/blake2/m_blake2s.c
new file mode 100644
index 0000000000..01974d966c
--- /dev/null
+++ b/crypto/blake2/m_blake2s.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2012, Samuel Neves <sneves@dei.uc.pt>.
+ * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL licenses, (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * https://www.openssl.org/source/license.html
+ * or in the file LICENSE in the source distribution.
+ */
+
+/*
+ * Derived from the BLAKE2 reference implementation written by Samuel Neves.
+ * More information about the BLAKE2 hash function and its implementations
+ * can be found at https://blake2.net.
+ */
+
+#include "internal/cryptlib.h"
+
+#ifndef OPENSSL_NO_BLAKE2
+
+# include <openssl/evp.h>
+# include <openssl/objects.h>
+# include "internal/blake2_locl.h"
+# include "internal/evp_int.h"
+
+static int init(EVP_MD_CTX *ctx)
+{
+    return BLAKE2s_Init(EVP_MD_CTX_md_data(ctx));
+}
+
+static int update(EVP_MD_CTX *ctx, const void *data, size_t count)
+{
+    return BLAKE2s_Update(EVP_MD_CTX_md_data(ctx), data, count);
+}
+
+static int final(EVP_MD_CTX *ctx, unsigned char *md)
+{
+    return BLAKE2s_Final(md, EVP_MD_CTX_md_data(ctx));
+}
+
+static const EVP_MD blake2s_md = {
+    NID_blake2s256,
+    0,
+    BLAKE2S_DIGEST_LENGTH,
+    0,
+    init,
+    update,
+    final,
+    NULL,
+    NULL,
+    0,
+    sizeof(EVP_MD *) + sizeof(BLAKE2S_CTX),
+};
+
+const EVP_MD *EVP_blake2s256(void)
+{
+    return (&blake2s_md);
+}
+#endif