diff options
Diffstat (limited to 'src/libs/3rdparty/botan/src/lib/block/des/des.cpp')
| -rw-r--r-- | src/libs/3rdparty/botan/src/lib/block/des/des.cpp | 381 |
1 files changed, 0 insertions, 381 deletions
diff --git a/src/libs/3rdparty/botan/src/lib/block/des/des.cpp b/src/libs/3rdparty/botan/src/lib/block/des/des.cpp deleted file mode 100644 index 885daa05ca..0000000000 --- a/src/libs/3rdparty/botan/src/lib/block/des/des.cpp +++ /dev/null @@ -1,381 +0,0 @@ -/* -* DES -* (C) 1999-2008,2018 Jack Lloyd -* -* Based on a public domain implemenation by Phil Karn (who in turn -* credited Richard Outerbridge and Jim Gillogly) -* -* Botan is released under the Simplified BSD License (see license.txt) -*/ - -#include <botan/des.h> -#include <botan/loadstor.h> - -namespace Botan { - -namespace { - -/* -* DES Key Schedule -*/ -void des_key_schedule(uint32_t round_key[32], const uint8_t key[8]) - { - static const uint8_t ROT[16] = { 1, 1, 2, 2, 2, 2, 2, 2, - 1, 2, 2, 2, 2, 2, 2, 1 }; - - uint32_t C = ((key[7] & 0x80) << 20) | ((key[6] & 0x80) << 19) | - ((key[5] & 0x80) << 18) | ((key[4] & 0x80) << 17) | - ((key[3] & 0x80) << 16) | ((key[2] & 0x80) << 15) | - ((key[1] & 0x80) << 14) | ((key[0] & 0x80) << 13) | - ((key[7] & 0x40) << 13) | ((key[6] & 0x40) << 12) | - ((key[5] & 0x40) << 11) | ((key[4] & 0x40) << 10) | - ((key[3] & 0x40) << 9) | ((key[2] & 0x40) << 8) | - ((key[1] & 0x40) << 7) | ((key[0] & 0x40) << 6) | - ((key[7] & 0x20) << 6) | ((key[6] & 0x20) << 5) | - ((key[5] & 0x20) << 4) | ((key[4] & 0x20) << 3) | - ((key[3] & 0x20) << 2) | ((key[2] & 0x20) << 1) | - ((key[1] & 0x20) ) | ((key[0] & 0x20) >> 1) | - ((key[7] & 0x10) >> 1) | ((key[6] & 0x10) >> 2) | - ((key[5] & 0x10) >> 3) | ((key[4] & 0x10) >> 4); - uint32_t D = ((key[7] & 0x02) << 26) | ((key[6] & 0x02) << 25) | - ((key[5] & 0x02) << 24) | ((key[4] & 0x02) << 23) | - ((key[3] & 0x02) << 22) | ((key[2] & 0x02) << 21) | - ((key[1] & 0x02) << 20) | ((key[0] & 0x02) << 19) | - ((key[7] & 0x04) << 17) | ((key[6] & 0x04) << 16) | - ((key[5] & 0x04) << 15) | ((key[4] & 0x04) << 14) | - ((key[3] & 0x04) << 13) | ((key[2] & 0x04) << 12) | - ((key[1] & 0x04) << 11) | ((key[0] & 0x04) << 10) | - ((key[7] & 0x08) << 8) | ((key[6] & 0x08) << 7) | - ((key[5] & 0x08) << 6) | ((key[4] & 0x08) << 5) | - ((key[3] & 0x08) << 4) | ((key[2] & 0x08) << 3) | - ((key[1] & 0x08) << 2) | ((key[0] & 0x08) << 1) | - ((key[3] & 0x10) >> 1) | ((key[2] & 0x10) >> 2) | - ((key[1] & 0x10) >> 3) | ((key[0] & 0x10) >> 4); - - for(size_t i = 0; i != 16; ++i) - { - C = ((C << ROT[i]) | (C >> (28-ROT[i]))) & 0x0FFFFFFF; - D = ((D << ROT[i]) | (D >> (28-ROT[i]))) & 0x0FFFFFFF; - round_key[2*i ] = ((C & 0x00000010) << 22) | ((C & 0x00000800) << 17) | - ((C & 0x00000020) << 16) | ((C & 0x00004004) << 15) | - ((C & 0x00000200) << 11) | ((C & 0x00020000) << 10) | - ((C & 0x01000000) >> 6) | ((C & 0x00100000) >> 4) | - ((C & 0x00010000) << 3) | ((C & 0x08000000) >> 2) | - ((C & 0x00800000) << 1) | ((D & 0x00000010) << 8) | - ((D & 0x00000002) << 7) | ((D & 0x00000001) << 2) | - ((D & 0x00000200) ) | ((D & 0x00008000) >> 2) | - ((D & 0x00000088) >> 3) | ((D & 0x00001000) >> 7) | - ((D & 0x00080000) >> 9) | ((D & 0x02020000) >> 14) | - ((D & 0x00400000) >> 21); - round_key[2*i+1] = ((C & 0x00000001) << 28) | ((C & 0x00000082) << 18) | - ((C & 0x00002000) << 14) | ((C & 0x00000100) << 10) | - ((C & 0x00001000) << 9) | ((C & 0x00040000) << 6) | - ((C & 0x02400000) << 4) | ((C & 0x00008000) << 2) | - ((C & 0x00200000) >> 1) | ((C & 0x04000000) >> 10) | - ((D & 0x00000020) << 6) | ((D & 0x00000100) ) | - ((D & 0x00000800) >> 1) | ((D & 0x00000040) >> 3) | - ((D & 0x00010000) >> 4) | ((D & 0x00000400) >> 5) | - ((D & 0x00004000) >> 10) | ((D & 0x04000000) >> 13) | - ((D & 0x00800000) >> 14) | ((D & 0x00100000) >> 18) | - ((D & 0x01000000) >> 24) | ((D & 0x08000000) >> 26); - } - } - -inline uint32_t spbox(uint32_t T0, uint32_t T1) - { - return DES_SPBOX1[get_byte(0, T0)] ^ DES_SPBOX2[get_byte(0, T1)] ^ - DES_SPBOX3[get_byte(1, T0)] ^ DES_SPBOX4[get_byte(1, T1)] ^ - DES_SPBOX5[get_byte(2, T0)] ^ DES_SPBOX6[get_byte(2, T1)] ^ - DES_SPBOX7[get_byte(3, T0)] ^ DES_SPBOX8[get_byte(3, T1)]; - } - -/* -* DES Encryption -*/ -inline void des_encrypt(uint32_t& Lr, uint32_t& Rr, - const uint32_t round_key[32]) - { - uint32_t L = Lr; - uint32_t R = Rr; - for(size_t i = 0; i != 16; i += 2) - { - L ^= spbox(rotr<4>(R) ^ round_key[2*i ], R ^ round_key[2*i+1]); - R ^= spbox(rotr<4>(L) ^ round_key[2*i+2], L ^ round_key[2*i+3]); - } - - Lr = L; - Rr = R; - } - -inline void des_encrypt_x2(uint32_t& L0r, uint32_t& R0r, - uint32_t& L1r, uint32_t& R1r, - const uint32_t round_key[32]) - { - uint32_t L0 = L0r; - uint32_t R0 = R0r; - uint32_t L1 = L1r; - uint32_t R1 = R1r; - - for(size_t i = 0; i != 16; i += 2) - { - L0 ^= spbox(rotr<4>(R0) ^ round_key[2*i ], R0 ^ round_key[2*i+1]); - L1 ^= spbox(rotr<4>(R1) ^ round_key[2*i ], R1 ^ round_key[2*i+1]); - - R0 ^= spbox(rotr<4>(L0) ^ round_key[2*i+2], L0 ^ round_key[2*i+3]); - R1 ^= spbox(rotr<4>(L1) ^ round_key[2*i+2], L1 ^ round_key[2*i+3]); - } - - L0r = L0; - R0r = R0; - L1r = L1; - R1r = R1; - } - -/* -* DES Decryption -*/ -inline void des_decrypt(uint32_t& Lr, uint32_t& Rr, - const uint32_t round_key[32]) - { - uint32_t L = Lr; - uint32_t R = Rr; - for(size_t i = 16; i != 0; i -= 2) - { - L ^= spbox(rotr<4>(R) ^ round_key[2*i - 2], R ^ round_key[2*i - 1]); - R ^= spbox(rotr<4>(L) ^ round_key[2*i - 4], L ^ round_key[2*i - 3]); - } - Lr = L; - Rr = R; - } - -inline void des_decrypt_x2(uint32_t& L0r, uint32_t& R0r, - uint32_t& L1r, uint32_t& R1r, - const uint32_t round_key[32]) - { - uint32_t L0 = L0r; - uint32_t R0 = R0r; - uint32_t L1 = L1r; - uint32_t R1 = R1r; - - for(size_t i = 16; i != 0; i -= 2) - { - L0 ^= spbox(rotr<4>(R0) ^ round_key[2*i - 2], R0 ^ round_key[2*i - 1]); - L1 ^= spbox(rotr<4>(R1) ^ round_key[2*i - 2], R1 ^ round_key[2*i - 1]); - - R0 ^= spbox(rotr<4>(L0) ^ round_key[2*i - 4], L0 ^ round_key[2*i - 3]); - R1 ^= spbox(rotr<4>(L1) ^ round_key[2*i - 4], L1 ^ round_key[2*i - 3]); - } - - L0r = L0; - R0r = R0; - L1r = L1; - R1r = R1; - } - -inline void des_IP(uint32_t& L, uint32_t& R, const uint8_t block[]) - { - uint64_t T = (DES_IPTAB1[block[0]] ) | (DES_IPTAB1[block[1]] << 1) | - (DES_IPTAB1[block[2]] << 2) | (DES_IPTAB1[block[3]] << 3) | - (DES_IPTAB1[block[4]] << 4) | (DES_IPTAB1[block[5]] << 5) | - (DES_IPTAB1[block[6]] << 6) | (DES_IPTAB2[block[7]] ); - - L = static_cast<uint32_t>(T >> 32); - R = static_cast<uint32_t>(T); - } - -inline void des_FP(uint32_t L, uint32_t R, uint8_t out[]) - { - uint64_t T = (DES_FPTAB1[get_byte(0, L)] << 5) | (DES_FPTAB1[get_byte(1, L)] << 3) | - (DES_FPTAB1[get_byte(2, L)] << 1) | (DES_FPTAB2[get_byte(3, L)] << 1) | - (DES_FPTAB1[get_byte(0, R)] << 4) | (DES_FPTAB1[get_byte(1, R)] << 2) | - (DES_FPTAB1[get_byte(2, R)] ) | (DES_FPTAB2[get_byte(3, R)] ); - T = rotl<32>(T); - - store_be(T, out); - } - -} - -/* -* DES Encryption -*/ -void DES::encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const - { - verify_key_set(m_round_key.empty() == false); - - while(blocks >= 2) - { - uint32_t L0, R0; - uint32_t L1, R1; - - des_IP(L0, R0, in); - des_IP(L1, R1, in + BLOCK_SIZE); - - des_encrypt_x2(L0, R0, L1, R1, m_round_key.data()); - - des_FP(L0, R0, out); - des_FP(L1, R1, out + BLOCK_SIZE); - - in += 2*BLOCK_SIZE; - out += 2*BLOCK_SIZE; - blocks -= 2; - } - - for(size_t i = 0; i < blocks; ++i) - { - uint32_t L, R; - des_IP(L, R, in + BLOCK_SIZE*i); - des_encrypt(L, R, m_round_key.data()); - des_FP(L, R, out + BLOCK_SIZE*i); - } - } - -/* -* DES Decryption -*/ -void DES::decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const - { - verify_key_set(m_round_key.empty() == false); - - while(blocks >= 2) - { - uint32_t L0, R0; - uint32_t L1, R1; - - des_IP(L0, R0, in); - des_IP(L1, R1, in + BLOCK_SIZE); - - des_decrypt_x2(L0, R0, L1, R1, m_round_key.data()); - - des_FP(L0, R0, out); - des_FP(L1, R1, out + BLOCK_SIZE); - - in += 2*BLOCK_SIZE; - out += 2*BLOCK_SIZE; - blocks -= 2; - } - - for(size_t i = 0; i < blocks; ++i) - { - uint32_t L, R; - des_IP(L, R, in + BLOCK_SIZE*i); - des_decrypt(L, R, m_round_key.data()); - des_FP(L, R, out + BLOCK_SIZE*i); - } - } - -/* -* DES Key Schedule -*/ -void DES::key_schedule(const uint8_t key[], size_t) - { - m_round_key.resize(32); - des_key_schedule(m_round_key.data(), key); - } - -void DES::clear() - { - zap(m_round_key); - } - -/* -* TripleDES Encryption -*/ -void TripleDES::encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const - { - verify_key_set(m_round_key.empty() == false); - - while(blocks >= 2) - { - uint32_t L0, R0; - uint32_t L1, R1; - - des_IP(L0, R0, in); - des_IP(L1, R1, in + BLOCK_SIZE); - - des_encrypt_x2(L0, R0, L1, R1, &m_round_key[0]); - des_decrypt_x2(R0, L0, R1, L1, &m_round_key[32]); - des_encrypt_x2(L0, R0, L1, R1, &m_round_key[64]); - - des_FP(L0, R0, out); - des_FP(L1, R1, out + BLOCK_SIZE); - - in += 2*BLOCK_SIZE; - out += 2*BLOCK_SIZE; - blocks -= 2; - } - - for(size_t i = 0; i != blocks; ++i) - { - uint32_t L, R; - des_IP(L, R, in + BLOCK_SIZE*i); - - des_encrypt(L, R, &m_round_key[0]); - des_decrypt(R, L, &m_round_key[32]); - des_encrypt(L, R, &m_round_key[64]); - - des_FP(L, R, out + BLOCK_SIZE*i); - } - } - -/* -* TripleDES Decryption -*/ -void TripleDES::decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const - { - verify_key_set(m_round_key.empty() == false); - - while(blocks >= 2) - { - uint32_t L0, R0; - uint32_t L1, R1; - - des_IP(L0, R0, in); - des_IP(L1, R1, in + BLOCK_SIZE); - - des_decrypt_x2(L0, R0, L1, R1, &m_round_key[64]); - des_encrypt_x2(R0, L0, R1, L1, &m_round_key[32]); - des_decrypt_x2(L0, R0, L1, R1, &m_round_key[0]); - - des_FP(L0, R0, out); - des_FP(L1, R1, out + BLOCK_SIZE); - - in += 2*BLOCK_SIZE; - out += 2*BLOCK_SIZE; - blocks -= 2; - } - - for(size_t i = 0; i != blocks; ++i) - { - uint32_t L, R; - des_IP(L, R, in + BLOCK_SIZE*i); - - des_decrypt(L, R, &m_round_key[64]); - des_encrypt(R, L, &m_round_key[32]); - des_decrypt(L, R, &m_round_key[0]); - - des_FP(L, R, out + BLOCK_SIZE*i); - } - } - -/* -* TripleDES Key Schedule -*/ -void TripleDES::key_schedule(const uint8_t key[], size_t length) - { - m_round_key.resize(3*32); - des_key_schedule(&m_round_key[0], key); - des_key_schedule(&m_round_key[32], key + 8); - - if(length == 24) - des_key_schedule(&m_round_key[64], key + 16); - else - copy_mem(&m_round_key[64], &m_round_key[0], 32); - } - -void TripleDES::clear() - { - zap(m_round_key); - } - -} |