Add SHA-224 from InSiTo, written and (C) by FlexSecure GmbH

Rename sha256.h and sha_64.h to sha2_32.h and sha2_64.h - this affects
users who instantiate these classes directly.

1 files changed, 55 insertions, 0 deletions

diff --git a/src/hash/sha2/sha2_64.h b/src/hash/sha2/sha2_64.h
new file mode 100644
index 000000000..e590d088d
--- /dev/null
+++ b/src/hash/sha2/sha2_64.h
@@ -0,0 +1,55 @@
+/*************************************************
+* SHA-{384,512} Header File                      *
+* (C) 1999-2007 Jack Lloyd                       *
+*************************************************/
+
+#ifndef BOTAN_SHA_64BIT_H__
+#define BOTAN_SHA_64BIT_H__
+
+#include <botan/mdx_hash.h>
+
+namespace Botan {
+
+/*************************************************
+* SHA-{384,512} Base                             *
+*************************************************/
+class BOTAN_DLL SHA_64_BASE : public MDx_HashFunction
+   {
+   protected:
+      void clear() throw();
+      SHA_64_BASE(u32bit out) : MDx_HashFunction(out, 128, true, true, 16) {}
+      SecureBuffer<u64bit, 8> digest;
+   private:
+      void hash(const byte[]);
+      void copy_out(byte[]);
+
+      SecureBuffer<u64bit, 80> W;
+   };
+
+/*************************************************
+* SHA-384                                        *
+*************************************************/
+class BOTAN_DLL SHA_384 : public SHA_64_BASE
+   {
+   public:
+      void clear() throw();
+      std::string name() const { return "SHA-384"; }
+      HashFunction* clone() const { return new SHA_384; }
+      SHA_384() : SHA_64_BASE(48) { clear(); }
+   };
+
+/*************************************************
+* SHA-512                                        *
+*************************************************/
+class BOTAN_DLL SHA_512 : public SHA_64_BASE
+   {
+   public:
+      void clear() throw();
+      std::string name() const { return "SHA-512"; }
+      HashFunction* clone() const { return new SHA_512; }
+      SHA_512() : SHA_64_BASE(64) { clear(); }
+   };
+
+}
+
+#endif