1 files changed, 41 insertions, 0 deletions
diff --git a/CryptoPkg/Library/BaseCryptLib/SysCall/ConstantTimeClock.c b/CryptoPkg/Library/BaseCryptLib/SysCall/ConstantTimeClock.c
new file mode 100644
index 0000000000..0a19a69533
--- /dev/null
+++ b/CryptoPkg/Library/BaseCryptLib/SysCall/ConstantTimeClock.c
@@ -0,0 +1,41 @@
+/** @file
+  C Run-Time Libraries (CRT) Time Management Routines Wrapper Implementation
+  for OpenSSL-based Cryptographic Library.
+
+  This C file implements constant time value for time() and NULL for gmtime()
+  thus should not be used in library instances which require functionality
+  of following APIs which need system time support:
+  1)  RsaGenerateKey
+  2)  RsaCheckKey
+  3)  RsaPkcs1Sign
+  4)  Pkcs7Sign
+  5)  DhGenerateParameter
+  6)  DhGenerateKey
+
+Copyright (c) 2010 - 2012, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <OpenSslSupport.h>
+
+//
+// -- Time Management Routines --
+//
+
+time_t time (time_t *timer)
+{
+  *timer = 0;
+  return *timer;
+}
+
+struct tm * gmtime (const time_t *timer)
+{
+  return NULL;
+}
+\ No newline at end of file