1 files changed, 53 insertions, 0 deletions
diff --git a/lib/block/blowfish/blowfish.h b/lib/block/blowfish/blowfish.h
new file mode 100644
index 000000000..cdf65f285
--- /dev/null
+++ b/lib/block/blowfish/blowfish.h
@@ -0,0 +1,53 @@
+/*
+* Blowfish
+* (C) 1999-2011 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_BLOWFISH_H__
+#define BOTAN_BLOWFISH_H__
+
+#include <botan/block_cipher.h>
+
+namespace Botan {
+
+/**
+* Blowfish
+*/
+class BOTAN_DLL Blowfish : public Block_Cipher_Fixed_Params<8, 1, 56>
+   {
+   public:
+      void encrypt_n(const byte in[], byte out[], size_t blocks) const;
+      void decrypt_n(const byte in[], byte out[], size_t blocks) const;
+
+      /**
+      * Modified EKSBlowfish key schedule, used for bcrypt password hashing
+      */
+      void eks_key_schedule(const byte key[], size_t key_length,
+                            const byte salt[16], size_t workfactor);
+
+      void clear();
+      std::string name() const { return "Blowfish"; }
+      BlockCipher* clone() const { return new Blowfish; }
+   private:
+      void key_schedule(const byte key[], size_t length);
+
+      void key_expansion(const byte key[],
+                         size_t key_length,
+                         const byte salt[16]);
+
+      void generate_sbox(secure_vector<u32bit>& box,
+                         u32bit& L, u32bit& R,
+                         const byte salt[16],
+                         size_t salt_off) const;
+
+      static const u32bit P_INIT[18];
+      static const u32bit S_INIT[1024];
+
+      secure_vector<u32bit> S, P;
+   };
+
+}
+
+#endif