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-rw-r--r--src/block/gost_28147/gost_28147.cpp177
-rw-r--r--src/block/gost_28147/gost_28147.h84
-rw-r--r--src/block/gost_28147/info.txt1
3 files changed, 0 insertions, 262 deletions
diff --git a/src/block/gost_28147/gost_28147.cpp b/src/block/gost_28147/gost_28147.cpp
deleted file mode 100644
index 09ca9a57e..000000000
--- a/src/block/gost_28147/gost_28147.cpp
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
-* GOST 28147-89
-* (C) 1999-2009,2011 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/gost_28147.h>
-#include <botan/loadstor.h>
-#include <botan/rotate.h>
-
-namespace Botan {
-
-byte GOST_28147_89_Params::sbox_entry(size_t row, size_t col) const
- {
- byte x = sboxes[4 * col + (row / 2)];
-
- return (row % 2 == 0) ? (x >> 4) : (x & 0x0F);
- }
-
-GOST_28147_89_Params::GOST_28147_89_Params(const std::string& n) : name(n)
- {
- // Encoded in the packed fromat from RFC 4357
-
- // GostR3411_94_TestParamSet (OID 1.2.643.2.2.31.0)
- static const byte GOST_R_3411_TEST_PARAMS[64] = {
- 0x4E, 0x57, 0x64, 0xD1, 0xAB, 0x8D, 0xCB, 0xBF, 0x94, 0x1A, 0x7A,
- 0x4D, 0x2C, 0xD1, 0x10, 0x10, 0xD6, 0xA0, 0x57, 0x35, 0x8D, 0x38,
- 0xF2, 0xF7, 0x0F, 0x49, 0xD1, 0x5A, 0xEA, 0x2F, 0x8D, 0x94, 0x62,
- 0xEE, 0x43, 0x09, 0xB3, 0xF4, 0xA6, 0xA2, 0x18, 0xC6, 0x98, 0xE3,
- 0xC1, 0x7C, 0xE5, 0x7E, 0x70, 0x6B, 0x09, 0x66, 0xF7, 0x02, 0x3C,
- 0x8B, 0x55, 0x95, 0xBF, 0x28, 0x39, 0xB3, 0x2E, 0xCC };
-
- // GostR3411-94-CryptoProParamSet (OID 1.2.643.2.2.31.1)
- static const byte GOST_R_3411_CRYPTOPRO_PARAMS[64] = {
- 0xA5, 0x74, 0x77, 0xD1, 0x4F, 0xFA, 0x66, 0xE3, 0x54, 0xC7, 0x42,
- 0x4A, 0x60, 0xEC, 0xB4, 0x19, 0x82, 0x90, 0x9D, 0x75, 0x1D, 0x4F,
- 0xC9, 0x0B, 0x3B, 0x12, 0x2F, 0x54, 0x79, 0x08, 0xA0, 0xAF, 0xD1,
- 0x3E, 0x1A, 0x38, 0xC7, 0xB1, 0x81, 0xC6, 0xE6, 0x56, 0x05, 0x87,
- 0x03, 0x25, 0xEB, 0xFE, 0x9C, 0x6D, 0xF8, 0x6D, 0x2E, 0xAB, 0xDE,
- 0x20, 0xBA, 0x89, 0x3C, 0x92, 0xF8, 0xD3, 0x53, 0xBC };
-
- if(name == "R3411_94_TestParam")
- sboxes = GOST_R_3411_TEST_PARAMS;
- else if(name == "R3411_CryptoPro")
- sboxes = GOST_R_3411_CRYPTOPRO_PARAMS;
- else
- throw Invalid_Argument("GOST_28147_89_Params: Unknown " + name);
- }
-
-/*
-* GOST Constructor
-*/
-GOST_28147_89::GOST_28147_89(const GOST_28147_89_Params& param) : SBOX(1024)
- {
- // Convert the parallel 4x4 sboxes into larger word-based sboxes
- for(size_t i = 0; i != 4; ++i)
- for(size_t j = 0; j != 256; ++j)
- {
- const u32bit T = (param.sbox_entry(2*i , j % 16)) |
- (param.sbox_entry(2*i+1, j / 16) << 4);
- SBOX[256*i+j] = rotate_left(T, (11+8*i) % 32);
- }
- }
-
-std::string GOST_28147_89::name() const
- {
- /*
- 'Guess' the right name for the sbox on the basis of the values.
- This would need to be updated if support for other sbox parameters
- is added. Preferably, we would just store the string value in the
- constructor, but can't break binary compat.
- */
- std::string sbox_name = "";
- if(SBOX[0] == 0x00072000)
- sbox_name = "R3411_94_TestParam";
- else if(SBOX[0] == 0x0002D000)
- sbox_name = "R3411_CryptoPro";
- else
- throw Internal_Error("GOST-28147 unrecognized sbox value");
-
- return "GOST-28147-89(" + sbox_name + ")";
- }
-
-/*
-* Two rounds of GOST
-*/
-#define GOST_2ROUND(N1, N2, R1, R2) \
- do { \
- u32bit T0 = N1 + EK[R1]; \
- N2 ^= SBOX[get_byte(3, T0)] | \
- SBOX[get_byte(2, T0)+256] | \
- SBOX[get_byte(1, T0)+512] | \
- SBOX[get_byte(0, T0)+768]; \
- \
- u32bit T1 = N2 + EK[R2]; \
- N1 ^= SBOX[get_byte(3, T1)] | \
- SBOX[get_byte(2, T1)+256] | \
- SBOX[get_byte(1, T1)+512] | \
- SBOX[get_byte(0, T1)+768]; \
- } while(0)
-
-/*
-* GOST Encryption
-*/
-void GOST_28147_89::encrypt_n(const byte in[], byte out[], size_t blocks) const
- {
- for(size_t i = 0; i != blocks; ++i)
- {
- u32bit N1 = load_le<u32bit>(in, 0);
- u32bit N2 = load_le<u32bit>(in, 1);
-
- for(size_t j = 0; j != 3; ++j)
- {
- GOST_2ROUND(N1, N2, 0, 1);
- GOST_2ROUND(N1, N2, 2, 3);
- GOST_2ROUND(N1, N2, 4, 5);
- GOST_2ROUND(N1, N2, 6, 7);
- }
-
- GOST_2ROUND(N1, N2, 7, 6);
- GOST_2ROUND(N1, N2, 5, 4);
- GOST_2ROUND(N1, N2, 3, 2);
- GOST_2ROUND(N1, N2, 1, 0);
-
- store_le(out, N2, N1);
-
- in += BLOCK_SIZE;
- out += BLOCK_SIZE;
- }
- }
-
-/*
-* GOST Decryption
-*/
-void GOST_28147_89::decrypt_n(const byte in[], byte out[], size_t blocks) const
- {
- for(size_t i = 0; i != blocks; ++i)
- {
- u32bit N1 = load_le<u32bit>(in, 0);
- u32bit N2 = load_le<u32bit>(in, 1);
-
- GOST_2ROUND(N1, N2, 0, 1);
- GOST_2ROUND(N1, N2, 2, 3);
- GOST_2ROUND(N1, N2, 4, 5);
- GOST_2ROUND(N1, N2, 6, 7);
-
- for(size_t j = 0; j != 3; ++j)
- {
- GOST_2ROUND(N1, N2, 7, 6);
- GOST_2ROUND(N1, N2, 5, 4);
- GOST_2ROUND(N1, N2, 3, 2);
- GOST_2ROUND(N1, N2, 1, 0);
- }
-
- store_le(out, N2, N1);
- in += BLOCK_SIZE;
- out += BLOCK_SIZE;
- }
- }
-
-/*
-* GOST Key Schedule
-*/
-void GOST_28147_89::key_schedule(const byte key[], size_t)
- {
- EK.resize(8);
- for(size_t i = 0; i != 8; ++i)
- EK[i] = load_le<u32bit>(key, i);
- }
-
-void GOST_28147_89::clear()
- {
- zap(EK);
- }
-
-}
diff --git a/src/block/gost_28147/gost_28147.h b/src/block/gost_28147/gost_28147.h
deleted file mode 100644
index 34b99197e..000000000
--- a/src/block/gost_28147/gost_28147.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
-* 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
diff --git a/src/block/gost_28147/info.txt b/src/block/gost_28147/info.txt
deleted file mode 100644
index 396557248..000000000
--- a/src/block/gost_28147/info.txt
+++ /dev/null
@@ -1 +0,0 @@
-define GOST_28147_89 20131128
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 09:22:08 +0000