diff options
Diffstat (limited to 'src/tiger.cpp')
| -rw-r--r-- | src/tiger.cpp | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/src/tiger.cpp b/src/tiger.cpp deleted file mode 100644 index 78bba0521..000000000 --- a/src/tiger.cpp +++ /dev/null @@ -1,155 +0,0 @@ -/************************************************* -* Tiger Source File * -* (C) 1999-2007 Jack Lloyd * -*************************************************/ - -#include <botan/tiger.h> -#include <botan/loadstor.h> -#include <botan/parsing.h> - -namespace Botan { - -/************************************************* -* Tiger Compression Function * -*************************************************/ -void Tiger::hash(const byte input[]) - { - for(u32bit j = 0; j != 8; ++j) - X[j] = load_le<u64bit>(input, j); - - u64bit A = digest[0], B = digest[1], C = digest[2]; - - pass(A, B, C, X, 5); mix(X); - pass(C, A, B, X, 7); mix(X); - pass(B, C, A, X, 9); - - for(u32bit j = 3; j != PASS; ++j) - { - mix(X); - pass(A, B, C, X, 9); - u64bit T = A; A = C; C = B; B = T; - } - - digest[0] ^= A; digest[1] = B - digest[1]; digest[2] += C; - } - -/************************************************* -* Copy out the digest * -*************************************************/ -void Tiger::copy_out(byte output[]) - { - for(u32bit j = 0; j != OUTPUT_LENGTH; ++j) - output[j] = get_byte(7 - (j % 8), digest[j/8]); - } - -/************************************************* -* Tiger Pass * -*************************************************/ -void Tiger::pass(u64bit& A, u64bit& B, u64bit& C, u64bit X[8], byte mul) - { - C ^= X[0]; - A -= SBOX1[get_byte(7, C)] ^ SBOX2[get_byte(5, C)] ^ - SBOX3[get_byte(3, C)] ^ SBOX4[get_byte(1, C)]; - B += SBOX1[get_byte(0, C)] ^ SBOX2[get_byte(2, C)] ^ - SBOX3[get_byte(4, C)] ^ SBOX4[get_byte(6, C)]; - B *= mul; - - A ^= X[1]; - B -= SBOX1[get_byte(7, A)] ^ SBOX2[get_byte(5, A)] ^ - SBOX3[get_byte(3, A)] ^ SBOX4[get_byte(1, A)]; - C += SBOX1[get_byte(0, A)] ^ SBOX2[get_byte(2, A)] ^ - SBOX3[get_byte(4, A)] ^ SBOX4[get_byte(6, A)]; - C *= mul; - - B ^= X[2]; - C -= SBOX1[get_byte(7, B)] ^ SBOX2[get_byte(5, B)] ^ - SBOX3[get_byte(3, B)] ^ SBOX4[get_byte(1, B)]; - A += SBOX1[get_byte(0, B)] ^ SBOX2[get_byte(2, B)] ^ - SBOX3[get_byte(4, B)] ^ SBOX4[get_byte(6, B)]; - A *= mul; - - C ^= X[3]; - A -= SBOX1[get_byte(7, C)] ^ SBOX2[get_byte(5, C)] ^ - SBOX3[get_byte(3, C)] ^ SBOX4[get_byte(1, C)]; - B += SBOX1[get_byte(0, C)] ^ SBOX2[get_byte(2, C)] ^ - SBOX3[get_byte(4, C)] ^ SBOX4[get_byte(6, C)]; - B *= mul; - - A ^= X[4]; - B -= SBOX1[get_byte(7, A)] ^ SBOX2[get_byte(5, A)] ^ - SBOX3[get_byte(3, A)] ^ SBOX4[get_byte(1, A)]; - C += SBOX1[get_byte(0, A)] ^ SBOX2[get_byte(2, A)] ^ - SBOX3[get_byte(4, A)] ^ SBOX4[get_byte(6, A)]; - C *= mul; - - B ^= X[5]; - C -= SBOX1[get_byte(7, B)] ^ SBOX2[get_byte(5, B)] ^ - SBOX3[get_byte(3, B)] ^ SBOX4[get_byte(1, B)]; - A += SBOX1[get_byte(0, B)] ^ SBOX2[get_byte(2, B)] ^ - SBOX3[get_byte(4, B)] ^ SBOX4[get_byte(6, B)]; - A *= mul; - - C ^= X[6]; - A -= SBOX1[get_byte(7, C)] ^ SBOX2[get_byte(5, C)] ^ - SBOX3[get_byte(3, C)] ^ SBOX4[get_byte(1, C)]; - B += SBOX1[get_byte(0, C)] ^ SBOX2[get_byte(2, C)] ^ - SBOX3[get_byte(4, C)] ^ SBOX4[get_byte(6, C)]; - B *= mul; - - A ^= X[7]; - B -= SBOX1[get_byte(7, A)] ^ SBOX2[get_byte(5, A)] ^ - SBOX3[get_byte(3, A)] ^ SBOX4[get_byte(1, A)]; - C += SBOX1[get_byte(0, A)] ^ SBOX2[get_byte(2, A)] ^ - SBOX3[get_byte(4, A)] ^ SBOX4[get_byte(6, A)]; - C *= mul; - } - -/************************************************* -* Tiger Mixing Function * -*************************************************/ -void Tiger::mix(u64bit X[8]) - { - X[0] -= X[7] ^ 0xA5A5A5A5A5A5A5A5; X[1] ^= X[0]; - X[2] += X[1]; X[3] -= X[2] ^ ((~X[1]) << 19); X[4] ^= X[3]; - X[5] += X[4]; X[6] -= X[5] ^ ((~X[4]) >> 23); X[7] ^= X[6]; - X[0] += X[7]; X[1] -= X[0] ^ ((~X[7]) << 19); X[2] ^= X[1]; - X[3] += X[2]; X[4] -= X[3] ^ ((~X[2]) >> 23); X[5] ^= X[4]; - X[6] += X[5]; X[7] -= X[6] ^ 0x0123456789ABCDEF; - } - -/************************************************* -* Clear memory of sensitive data * -*************************************************/ -void Tiger::clear() throw() - { - MDx_HashFunction::clear(); - X.clear(); - digest[0] = 0x0123456789ABCDEF; - digest[1] = 0xFEDCBA9876543210; - digest[2] = 0xF096A5B4C3B2E187; - } - -/************************************************* -* Return the name of this type * -*************************************************/ -std::string Tiger::name() const - { - return "Tiger(" + to_string(OUTPUT_LENGTH) + "," + to_string(PASS) + ")"; - } - -/************************************************* -* Tiger Constructor * -*************************************************/ -Tiger::Tiger(u32bit hashlen, u32bit pass) : - MDx_HashFunction(hashlen, 64, false, false), PASS(pass) - { - if(OUTPUT_LENGTH != 16 && OUTPUT_LENGTH != 20 && OUTPUT_LENGTH != 24) - throw Invalid_Argument("Tiger: Illegal hash output size: " + - to_string(OUTPUT_LENGTH)); - if(PASS < 3) - throw Invalid_Argument("Tiger: Invalid number of passes: " - + to_string(PASS)); - clear(); - } - -} |