1 files changed, 54 insertions, 0 deletions
diff --git a/lib/mac/x919_mac/x919_mac.h b/lib/mac/x919_mac/x919_mac.h
new file mode 100644
index 000000000..b7b7d685e
--- /dev/null
+++ b/lib/mac/x919_mac/x919_mac.h
@@ -0,0 +1,54 @@
+/*
+* ANSI X9.19 MAC
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_ANSI_X919_MAC_H__
+#define BOTAN_ANSI_X919_MAC_H__
+
+#include <botan/mac.h>
+#include <botan/block_cipher.h>
+
+namespace Botan {
+
+/**
+* DES/3DES-based MAC from ANSI X9.19
+*/
+class BOTAN_DLL ANSI_X919_MAC : public MessageAuthenticationCode
+   {
+   public:
+      void clear();
+      std::string name() const;
+      size_t output_length() const { return e->block_size(); }
+      MessageAuthenticationCode* clone() const;
+
+      Key_Length_Specification key_spec() const
+         {
+         return Key_Length_Specification(8, 16, 8);
+         }
+
+      /**
+      * @param cipher the underlying block cipher to use
+      */
+      ANSI_X919_MAC(BlockCipher* cipher);
+
+      ANSI_X919_MAC(const ANSI_X919_MAC&) = delete;
+      ANSI_X919_MAC& operator=(const ANSI_X919_MAC&) = delete;
+
+      ~ANSI_X919_MAC();
+   private:
+      void add_data(const byte[], size_t);
+      void final_result(byte[]);
+      void key_schedule(const byte[], size_t);
+
+      BlockCipher* e;
+      BlockCipher* d;
+      secure_vector<byte> state;
+      size_t position;
+   };
+
+}
+
+#endif