1 files changed, 40 insertions, 0 deletions
diff --git a/Source/cmCryptoHash.h b/Source/cmCryptoHash.h
new file mode 100644
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--- /dev/null
+++ b/Source/cmCryptoHash.h
@@ -0,0 +1,40 @@
+/*============================================================================
+  CMake - Cross Platform Makefile Generator
+  Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
+
+  Distributed under the OSI-approved BSD License (the "License");
+  see accompanying file Copyright.txt for details.
+
+  This software is distributed WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the License for more information.
+============================================================================*/
+#ifndef cmCryptoHash_h
+#define cmCryptoHash_h
+
+#include "cmStandardIncludes.h"
+
+class cmCryptoHash
+{
+public:
+  std::string HashString(const char* input);
+  std::string HashFile(const char* file);
+protected:
+  virtual void Initialize()=0;
+  virtual void Append(unsigned char const*, int)=0;
+  virtual std::string Finalize()=0;
+};
+
+class cmCryptoHashMD5: public cmCryptoHash
+{
+  struct cmsysMD5_s* MD5;
+public:
+  cmCryptoHashMD5();
+  ~cmCryptoHashMD5();
+protected:
+  virtual void Initialize();
+  virtual void Append(unsigned char const* buf, int sz);
+  virtual std::string Finalize();
+};
+
+#endif