1 files changed, 60 insertions, 0 deletions
diff --git a/src/lib/hash/sha1/sha160.h b/src/lib/hash/sha1/sha160.h
new file mode 100644
index 000000000..e2a81808d
--- /dev/null
+++ b/src/lib/hash/sha1/sha160.h
@@ -0,0 +1,60 @@
+/*
+* SHA-160
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_SHA_160_H__
+#define BOTAN_SHA_160_H__
+
+#include <botan/mdx_hash.h>
+
+namespace Botan {
+
+/**
+* NIST's SHA-160
+*/
+class BOTAN_DLL SHA_160 : public MDx_HashFunction
+   {
+   public:
+      std::string name() const { return "SHA-160"; }
+      size_t output_length() const { return 20; }
+      HashFunction* clone() const { return new SHA_160; }
+
+      void clear();
+
+      SHA_160() : MDx_HashFunction(64, true, true), digest(5), W(80)
+         {
+         clear();
+         }
+   protected:
+      /**
+      * Set a custom size for the W array. Normally 80, but some
+      * subclasses need slightly more for best performance/internal
+      * constraints
+      * @param W_size how big to make W
+      */
+      SHA_160(size_t W_size) :
+         MDx_HashFunction(64, true, true), digest(5), W(W_size)
+         {
+         clear();
+         }
+
+      void compress_n(const byte[], size_t blocks);
+      void copy_out(byte[]);
+
+      /**
+      * The digest value, exposed for use by subclasses (asm, SSE2)
+      */
+      secure_vector<u32bit> digest;
+
+      /**
+      * The message buffer, exposed for use by subclasses (asm, SSE2)
+      */
+      secure_vector<u32bit> W;
+   };
+
+}
+
+#endif