Move lib into src

1 files changed, 84 insertions, 0 deletions

diff --git a/src/lib/block/gost_28147/gost_28147.h b/src/lib/block/gost_28147/gost_28147.h
new file mode 100644
index 000000000..34b99197e
--- /dev/null
+++ b/src/lib/block/gost_28147/gost_28147.h
@@ -0,0 +1,84 @@
+/*
+* GOST 28147-89
+* (C) 1999-2009 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_GOST_28147_89_H__
+#define BOTAN_GOST_28147_89_H__
+
+#include <botan/block_cipher.h>
+
+namespace Botan {
+
+/**
+* The GOST 28147-89 block cipher uses a set of 4 bit Sboxes, however
+* the standard does not actually define these Sboxes; they are
+* considered a local configuration issue. Several different sets are
+* used.
+*/
+class BOTAN_DLL GOST_28147_89_Params
+   {
+   public:
+      /**
+      * @param row the row
+      * @param col the column
+      * @return sbox entry at this row/column
+      */
+      byte sbox_entry(size_t row, size_t col) const;
+
+      /**
+      * @return name of this parameter set
+      */
+      std::string param_name() const { return name; }
+
+      /**
+      * Default GOST parameters are the ones given in GOST R 34.11 for
+      * testing purposes; these sboxes are also used by Crypto++, and,
+      * at least according to Wikipedia, the Central Bank of Russian
+      * Federation
+      * @param name of the parameter set
+      */
+      GOST_28147_89_Params(const std::string& name = "R3411_94_TestParam");
+   private:
+      const byte* sboxes;
+      std::string name;
+   };
+
+/**
+* GOST 28147-89
+*/
+class BOTAN_DLL GOST_28147_89 : public Block_Cipher_Fixed_Params<8, 32>
+   {
+   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;
+
+      void clear();
+
+      std::string name() const;
+      BlockCipher* clone() const { return new GOST_28147_89(SBOX); }
+
+      /**
+      * @param params the sbox parameters to use
+      */
+      GOST_28147_89(const GOST_28147_89_Params& params);
+   private:
+      GOST_28147_89(const std::vector<u32bit>& other_SBOX) :
+         SBOX(other_SBOX), EK(8) {}
+
+      void key_schedule(const byte[], size_t);
+
+      /*
+      * The sbox is not secret, this is just a larger expansion of it
+      * which we generate at runtime for faster execution
+      */
+      std::vector<u32bit> SBOX;
+
+      secure_vector<u32bit> EK;
+   };
+
+}
+
+#endif