From 354bb40e75d94466e91fe6960523612c9d17ccfb Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Thu, 2 Nov 2017 23:11:29 +0300
Subject: Add implementation

---
 mysql/mysys_ssl/my_sha1.cpp | 141 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 141 insertions(+)
 create mode 100644 mysql/mysys_ssl/my_sha1.cpp

(limited to 'mysql/mysys_ssl/my_sha1.cpp')

diff --git a/mysql/mysys_ssl/my_sha1.cpp b/mysql/mysys_ssl/my_sha1.cpp
new file mode 100644
index 0000000..5d9d480
--- /dev/null
+++ b/mysql/mysys_ssl/my_sha1.cpp
@@ -0,0 +1,141 @@
+/* Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
+
+
+/**
+  @file
+
+  @brief
+  Wrapper functions for OpenSSL, YaSSL implementations. Also provides a
+  Compatibility layer to make available YaSSL's SHA1 implementation.
+*/
+
+#include <my_global.h>
+#include <sha1.h>
+
+#if defined(HAVE_YASSL)
+#include "sha.hpp"
+
+/**
+  Compute SHA1 message digest using YaSSL.
+
+  @param digest [out]  Computed SHA1 digest
+  @param buf    [in]   Message to be computed
+  @param len    [in]   Length of the message
+
+  @return              void
+*/
+void mysql_sha1_yassl(uint8 *digest, const char *buf, size_t len)
+{
+  TaoCrypt::SHA hasher;
+  hasher.Update((const TaoCrypt::byte *) buf, (TaoCrypt::word32)len);
+  hasher.Final ((TaoCrypt::byte *) digest);
+}
+
+/**
+  Compute SHA1 message digest for two messages in order to
+  emulate sha1(msg1, msg2) using YaSSL.
+
+  @param digest [out]  Computed SHA1 digest
+  @param buf1   [in]   First message
+  @param len1   [in]   Length of first message
+  @param buf2   [in]   Second message
+  @param len2   [in]   Length of second message
+
+  @return              void
+*/
+void mysql_sha1_multi_yassl(uint8 *digest, const char *buf1, int len1,
+                            const char *buf2, int len2)
+{
+  TaoCrypt::SHA hasher;
+  hasher.Update((const TaoCrypt::byte *) buf1, len1);
+  hasher.Update((const TaoCrypt::byte *) buf2, len2);
+  hasher.Final((TaoCrypt::byte *) digest);
+}
+
+#elif defined(HAVE_OPENSSL)
+#include <openssl/sha.h>
+
+int mysql_sha1_reset(SHA_CTX *context)
+{
+    return SHA1_Init(context);
+}
+
+
+int mysql_sha1_input(SHA_CTX *context, const uint8 *message_array,
+                     unsigned length)
+{
+    return SHA1_Update(context, message_array, length);
+}
+
+
+int mysql_sha1_result(SHA_CTX *context,
+                      uint8 Message_Digest[SHA1_HASH_SIZE])
+{
+    return SHA1_Final(Message_Digest, context);
+}
+
+#endif /* HAVE_YASSL */
+
+/**
+  Wrapper function to compute SHA1 message digest.
+
+  @param digest [out]  Computed SHA1 digest
+  @param buf    [in]   Message to be computed
+  @param len    [in]   Length of the message
+
+  @return              void
+*/
+void compute_sha1_hash(uint8 *digest, const char *buf, size_t len)
+{
+#if defined(HAVE_YASSL)
+  mysql_sha1_yassl(digest, buf, len);
+#elif defined(HAVE_OPENSSL)
+  SHA_CTX sha1_context;
+
+  mysql_sha1_reset(&sha1_context);
+  mysql_sha1_input(&sha1_context, (const uint8 *) buf, len);
+  mysql_sha1_result(&sha1_context, digest);
+#endif /* HAVE_YASSL */
+}
+
+
+/**
+  Wrapper function to compute SHA1 message digest for
+  two messages in order to emulate sha1(msg1, msg2).
+
+  @param digest [out]  Computed SHA1 digest
+  @param buf1   [in]   First message
+  @param len1   [in]   Length of first message
+  @param buf2   [in]   Second message
+  @param len2   [in]   Length of second message
+
+  @return              void
+*/
+void compute_sha1_hash_multi(uint8 *digest, const char *buf1, int len1,
+                             const char *buf2, int len2)
+{
+#if defined(HAVE_YASSL)
+  mysql_sha1_multi_yassl(digest, buf1, len1, buf2, len2);
+#elif defined(HAVE_OPENSSL)
+  SHA_CTX sha1_context;
+
+  mysql_sha1_reset(&sha1_context);
+  mysql_sha1_input(&sha1_context, (const uint8 *) buf1, len1);
+  mysql_sha1_input(&sha1_context, (const uint8 *) buf2, len2);
+  mysql_sha1_result(&sha1_context, digest);
+#endif /* HAVE_YASSL */
+}
+
-- 
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