1 files changed, 59 insertions, 0 deletions
diff --git a/botan/src/hash/sha2/sha2_32.h b/botan/src/hash/sha2/sha2_32.h
new file mode 100644
index 0000000..05083d1
--- /dev/null
+++ b/botan/src/hash/sha2/sha2_32.h
@@ -0,0 +1,59 @@
+/*
+* SHA-{224,256}
+* (C) 1999-2008 Jack Lloyd
+*     2007 FlexSecure GmbH
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_SHA_256_H__
+#define BOTAN_SHA_256_H__
+
+#include <botan/mdx_hash.h>
+
+namespace Botan {
+
+/*
+* SHA-{224,256} Base
+*/
+class BOTAN_DLL SHA_224_256_BASE : public MDx_HashFunction
+   {
+   protected:
+      void clear() throw();
+      SHA_224_256_BASE(u32bit out) :
+         MDx_HashFunction(out, 64, true, true) { clear(); }
+
+      SecureBuffer<u32bit, 64> W;
+      SecureBuffer<u32bit, 8> digest;
+   private:
+      void compress_n(const byte[], u32bit blocks);
+      void copy_out(byte[]);
+   };
+
+/*
+* SHA-224
+*/
+class BOTAN_DLL SHA_224 : public SHA_224_256_BASE
+   {
+   public:
+      void clear() throw();
+      std::string name() const { return "SHA-224"; }
+      HashFunction* clone() const { return new SHA_224; }
+      SHA_224() : SHA_224_256_BASE(28) { clear(); }
+   };
+
+/*
+* SHA-256
+*/
+class BOTAN_DLL SHA_256 : public SHA_224_256_BASE
+   {
+   public:
+      void clear() throw();
+      std::string name() const { return "SHA-256"; }
+      HashFunction* clone() const { return new SHA_256; }
+      SHA_256() : SHA_224_256_BASE(32) { clear (); }
+   };
+
+}
+
+#endif