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-rw-r--r--src/block/threefish/threefish.cpp205
1 files changed, 0 insertions, 205 deletions
diff --git a/src/block/threefish/threefish.cpp b/src/block/threefish/threefish.cpp
deleted file mode 100644
index 587a76a12..000000000
--- a/src/block/threefish/threefish.cpp
+++ /dev/null
@@ -1,205 +0,0 @@
-/*
-* Threefish-512
-* (C) 2013 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/threefish.h>
-#include <botan/rotate.h>
-#include <botan/loadstor.h>
-
-namespace Botan {
-
-void Threefish_512::encrypt_n(const byte in[], byte out[], size_t blocks) const
- {
- BOTAN_ASSERT(m_K.size() == 9, "Key was set");
- BOTAN_ASSERT(m_T.size() == 3, "Tweak was set");
-
-#define THREEFISH_ROUND(X0,X1,X2,X3,X4,X5,X6,X7,ROT1,ROT2,ROT3,ROT4) \
- do { \
- X0 += X4; \
- X1 += X5; \
- X2 += X6; \
- X3 += X7; \
- X4 = rotate_left(X4, ROT1); \
- X5 = rotate_left(X5, ROT2); \
- X6 = rotate_left(X6, ROT3); \
- X7 = rotate_left(X7, ROT4); \
- X4 ^= X0; \
- X5 ^= X1; \
- X6 ^= X2; \
- X7 ^= X3; \
- } while(0)
-
-#define THREEFISH_INJECT_KEY(r) \
- do { \
- X0 += m_K[(r ) % 9]; \
- X1 += m_K[(r+1) % 9]; \
- X2 += m_K[(r+2) % 9]; \
- X3 += m_K[(r+3) % 9]; \
- X4 += m_K[(r+4) % 9]; \
- X5 += m_K[(r+5) % 9] + m_T[(r ) % 3]; \
- X6 += m_K[(r+6) % 9] + m_T[(r+1) % 3]; \
- X7 += m_K[(r+7) % 9] + (r); \
- } while(0)
-
-#define THREEFISH_ENC_8_ROUNDS(R1,R2) \
- do { \
- THREEFISH_ROUND(X0,X2,X4,X6, X1,X3,X5,X7, 46,36,19,37); \
- THREEFISH_ROUND(X2,X4,X6,X0, X1,X7,X5,X3, 33,27,14,42); \
- THREEFISH_ROUND(X4,X6,X0,X2, X1,X3,X5,X7, 17,49,36,39); \
- THREEFISH_ROUND(X6,X0,X2,X4, X1,X7,X5,X3, 44, 9,54,56); \
- THREEFISH_INJECT_KEY(R1); \
- \
- THREEFISH_ROUND(X0,X2,X4,X6, X1,X3,X5,X7, 39,30,34,24); \
- THREEFISH_ROUND(X2,X4,X6,X0, X1,X7,X5,X3, 13,50,10,17); \
- THREEFISH_ROUND(X4,X6,X0,X2, X1,X3,X5,X7, 25,29,39,43); \
- THREEFISH_ROUND(X6,X0,X2,X4, X1,X7,X5,X3, 8,35,56,22); \
- THREEFISH_INJECT_KEY(R2); \
- } while(0)
-
- for(size_t i = 0; i != blocks; ++i)
- {
- u64bit X0 = load_le<u64bit>(in, 0);
- u64bit X1 = load_le<u64bit>(in, 1);
- u64bit X2 = load_le<u64bit>(in, 2);
- u64bit X3 = load_le<u64bit>(in, 3);
- u64bit X4 = load_le<u64bit>(in, 4);
- u64bit X5 = load_le<u64bit>(in, 5);
- u64bit X6 = load_le<u64bit>(in, 6);
- u64bit X7 = load_le<u64bit>(in, 7);
-
- THREEFISH_INJECT_KEY(0);
-
- THREEFISH_ENC_8_ROUNDS(1,2);
- THREEFISH_ENC_8_ROUNDS(3,4);
- THREEFISH_ENC_8_ROUNDS(5,6);
- THREEFISH_ENC_8_ROUNDS(7,8);
- THREEFISH_ENC_8_ROUNDS(9,10);
- THREEFISH_ENC_8_ROUNDS(11,12);
- THREEFISH_ENC_8_ROUNDS(13,14);
- THREEFISH_ENC_8_ROUNDS(15,16);
- THREEFISH_ENC_8_ROUNDS(17,18);
-
- store_le(out, X0, X1, X2, X3, X4, X5, X6, X7);
-
- in += 64;
- out += 64;
- }
-
-#undef THREEFISH_ENC_8_ROUNDS
-#undef THREEFISH_INJECT_KEY
-#undef THREEFISH_ROUND
- }
-
-void Threefish_512::decrypt_n(const byte in[], byte out[], size_t blocks) const
- {
- BOTAN_ASSERT(m_K.size() == 9, "Key was set");
- BOTAN_ASSERT(m_T.size() == 3, "Tweak was set");
-
-#define THREEFISH_ROUND(X0,X1,X2,X3,X4,X5,X6,X7,ROT1,ROT2,ROT3,ROT4) \
- do { \
- X4 ^= X0; \
- X5 ^= X1; \
- X6 ^= X2; \
- X7 ^= X3; \
- X4 = rotate_right(X4, ROT1); \
- X5 = rotate_right(X5, ROT2); \
- X6 = rotate_right(X6, ROT3); \
- X7 = rotate_right(X7, ROT4); \
- X0 -= X4; \
- X1 -= X5; \
- X2 -= X6; \
- X3 -= X7; \
- } while(0)
-
-#define THREEFISH_INJECT_KEY(r) \
- do { \
- X0 -= m_K[(r ) % 9]; \
- X1 -= m_K[(r+1) % 9]; \
- X2 -= m_K[(r+2) % 9]; \
- X3 -= m_K[(r+3) % 9]; \
- X4 -= m_K[(r+4) % 9]; \
- X5 -= m_K[(r+5) % 9] + m_T[(r ) % 3]; \
- X6 -= m_K[(r+6) % 9] + m_T[(r+1) % 3]; \
- X7 -= m_K[(r+7) % 9] + (r); \
- } while(0)
-
-#define THREEFISH_DEC_8_ROUNDS(R1,R2) \
- do { \
- THREEFISH_ROUND(X6,X0,X2,X4, X1,X7,X5,X3, 8,35,56,22); \
- THREEFISH_ROUND(X4,X6,X0,X2, X1,X3,X5,X7, 25,29,39,43); \
- THREEFISH_ROUND(X2,X4,X6,X0, X1,X7,X5,X3, 13,50,10,17); \
- THREEFISH_ROUND(X0,X2,X4,X6, X1,X3,X5,X7, 39,30,34,24); \
- THREEFISH_INJECT_KEY(R1); \
- \
- THREEFISH_ROUND(X6,X0,X2,X4, X1,X7,X5,X3, 44, 9,54,56); \
- THREEFISH_ROUND(X4,X6,X0,X2, X1,X3,X5,X7, 17,49,36,39); \
- THREEFISH_ROUND(X2,X4,X6,X0, X1,X7,X5,X3, 33,27,14,42); \
- THREEFISH_ROUND(X0,X2,X4,X6, X1,X3,X5,X7, 46,36,19,37); \
- THREEFISH_INJECT_KEY(R2); \
- } while(0)
-
- for(size_t i = 0; i != blocks; ++i)
- {
- u64bit X0 = load_le<u64bit>(in, 0);
- u64bit X1 = load_le<u64bit>(in, 1);
- u64bit X2 = load_le<u64bit>(in, 2);
- u64bit X3 = load_le<u64bit>(in, 3);
- u64bit X4 = load_le<u64bit>(in, 4);
- u64bit X5 = load_le<u64bit>(in, 5);
- u64bit X6 = load_le<u64bit>(in, 6);
- u64bit X7 = load_le<u64bit>(in, 7);
-
- THREEFISH_INJECT_KEY(18);
-
- THREEFISH_DEC_8_ROUNDS(17,16);
- THREEFISH_DEC_8_ROUNDS(15,14);
- THREEFISH_DEC_8_ROUNDS(13,12);
- THREEFISH_DEC_8_ROUNDS(11,10);
- THREEFISH_DEC_8_ROUNDS(9,8);
- THREEFISH_DEC_8_ROUNDS(7,6);
- THREEFISH_DEC_8_ROUNDS(5,4);
- THREEFISH_DEC_8_ROUNDS(3,2);
- THREEFISH_DEC_8_ROUNDS(1,0);
-
- store_le(out, X0, X1, X2, X3, X4, X5, X6, X7);
-
- in += 64;
- out += 64;
- }
-
-#undef THREEFISH_DEC_8_ROUNDS
-#undef THREEFISH_INJECT_KEY
-#undef THREEFISH_ROUND
- }
-
-void Threefish_512::set_tweak(const byte tweak[], size_t len)
- {
- if(len != 16)
- throw std::runtime_error("Unsupported twofish tweak length");
- m_T[0] = load_le<u64bit>(tweak, 0);
- m_T[1] = load_le<u64bit>(tweak, 1);
- m_T[2] = m_T[0] ^ m_T[1];
- }
-
-void Threefish_512::key_schedule(const byte key[], size_t)
- {
- // todo: define key schedule for smaller keys
- m_K.resize(9);
-
- for(size_t i = 0; i != 8; ++i)
- m_K[i] = load_le<u64bit>(key, i);
-
- m_K[8] = m_K[0] ^ m_K[1] ^ m_K[2] ^ m_K[3] ^
- m_K[4] ^ m_K[5] ^ m_K[6] ^ m_K[7] ^ 0x1BD11BDAA9FC1A22;
- }
-
-void Threefish_512::clear()
- {
- zeroise(m_K);
- zeroise(m_T);
- }
-
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-16 03:17:31 +0000