1 files changed, 47 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/lib/block/twofish/twofish.h b/comm/third_party/botan/src/lib/block/twofish/twofish.h
new file mode 100644
index 0000000000..027e2c7011
--- /dev/null
+++ b/comm/third_party/botan/src/lib/block/twofish/twofish.h
@@ -0,0 +1,47 @@
+/*
+* Twofish
+* (C) 1999-2007 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_TWOFISH_H_
+#define BOTAN_TWOFISH_H_
+
+#include <botan/block_cipher.h>
+
+BOTAN_FUTURE_INTERNAL_HEADER(twofish.h)
+
+namespace Botan {
+
+/**
+* Twofish, an AES finalist
+*/
+class BOTAN_PUBLIC_API(2,0) Twofish final : public Block_Cipher_Fixed_Params<16, 16, 32, 8>
+   {
+   public:
+      void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
+      void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
+
+      void clear() override;
+      std::string name() const override { return "Twofish"; }
+      BlockCipher* clone() const override { return new Twofish; }
+   private:
+      void key_schedule(const uint8_t[], size_t) override;
+
+      static const uint32_t MDS0[256];
+      static const uint32_t MDS1[256];
+      static const uint32_t MDS2[256];
+      static const uint32_t MDS3[256];
+      static const uint8_t Q0[256];
+      static const uint8_t Q1[256];
+      static const uint8_t RS[32];
+      static const uint8_t EXP_TO_POLY[255];
+      static const uint8_t POLY_TO_EXP[255];
+
+      secure_vector<uint32_t> m_SB, m_RK;
+   };
+
+}
+
+#endif