Check in an initial implementation of CBC-MAC.

The test vectors were generated by Crypto++ 5.5 on a Linux/x86-64 machine.
Test vectors for CBC-MAC(DES) all pass, for inputs up to 63 bytes. For
CBC-MAC(AES-128), all test vectors with inputs over 10 bytes fail to verify
against what Crypto++ produces. Unknown at this time where the bug lies.

1 files changed, 36 insertions, 0 deletions

diff --git a/include/cbc_mac.h b/include/cbc_mac.h
new file mode 100644
index 000000000..aec1c42f1
--- /dev/null
+++ b/include/cbc_mac.h
@@ -0,0 +1,36 @@
+/*************************************************
+* CBC-MAC Header File                            *
+* (C) 1999-2007 The Botan Project                *
+*************************************************/
+
+#ifndef BOTAN_CBC_MAC__
+#define BOTAN_CBC_MAC__
+
+#include <botan/base.h>
+
+namespace Botan {
+
+/*************************************************
+* CBC-MAC                                        *
+*************************************************/
+class CBC_MAC : public MessageAuthenticationCode
+   {
+   public:
+      void clear() throw();
+      std::string name() const;
+      MessageAuthenticationCode* clone() const;
+      CBC_MAC(const std::string&);
+      ~CBC_MAC();
+   private:
+      void add_data(const byte[], u32bit);
+      void final_result(byte[]);
+      void key(const byte[], u32bit);
+
+      BlockCipher* e;
+      SecureVector<byte> state;
+      u32bit position;
+   };
+
+}
+
+#endif