diff options
Diffstat (limited to 'comm/third_party/botan/src/lib/block/sm4/sm4.cpp')
| -rw-r--r-- | comm/third_party/botan/src/lib/block/sm4/sm4.cpp | 341 |
1 files changed, 341 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/lib/block/sm4/sm4.cpp b/comm/third_party/botan/src/lib/block/sm4/sm4.cpp new file mode 100644 index 0000000000..8198330e6e --- /dev/null +++ b/comm/third_party/botan/src/lib/block/sm4/sm4.cpp @@ -0,0 +1,341 @@ +/* +* SM4 +* (C) 2017 Ribose Inc +* (C) 2018 Jack Lloyd +* +* Botan is released under the Simplified BSD License (see license.txt) +*/ + +#include <botan/sm4.h> +#include <botan/loadstor.h> +#include <botan/rotate.h> +#include <botan/cpuid.h> + +namespace Botan { + +namespace { + +alignas(64) +const uint8_t SM4_SBOX[256] = { +0xD6, 0x90, 0xE9, 0xFE, 0xCC, 0xE1, 0x3D, 0xB7, 0x16, 0xB6, 0x14, 0xC2, 0x28, 0xFB, 0x2C, 0x05, +0x2B, 0x67, 0x9A, 0x76, 0x2A, 0xBE, 0x04, 0xC3, 0xAA, 0x44, 0x13, 0x26, 0x49, 0x86, 0x06, 0x99, +0x9C, 0x42, 0x50, 0xF4, 0x91, 0xEF, 0x98, 0x7A, 0x33, 0x54, 0x0B, 0x43, 0xED, 0xCF, 0xAC, 0x62, +0xE4, 0xB3, 0x1C, 0xA9, 0xC9, 0x08, 0xE8, 0x95, 0x80, 0xDF, 0x94, 0xFA, 0x75, 0x8F, 0x3F, 0xA6, +0x47, 0x07, 0xA7, 0xFC, 0xF3, 0x73, 0x17, 0xBA, 0x83, 0x59, 0x3C, 0x19, 0xE6, 0x85, 0x4F, 0xA8, +0x68, 0x6B, 0x81, 0xB2, 0x71, 0x64, 0xDA, 0x8B, 0xF8, 0xEB, 0x0F, 0x4B, 0x70, 0x56, 0x9D, 0x35, +0x1E, 0x24, 0x0E, 0x5E, 0x63, 0x58, 0xD1, 0xA2, 0x25, 0x22, 0x7C, 0x3B, 0x01, 0x21, 0x78, 0x87, +0xD4, 0x00, 0x46, 0x57, 0x9F, 0xD3, 0x27, 0x52, 0x4C, 0x36, 0x02, 0xE7, 0xA0, 0xC4, 0xC8, 0x9E, +0xEA, 0xBF, 0x8A, 0xD2, 0x40, 0xC7, 0x38, 0xB5, 0xA3, 0xF7, 0xF2, 0xCE, 0xF9, 0x61, 0x15, 0xA1, +0xE0, 0xAE, 0x5D, 0xA4, 0x9B, 0x34, 0x1A, 0x55, 0xAD, 0x93, 0x32, 0x30, 0xF5, 0x8C, 0xB1, 0xE3, +0x1D, 0xF6, 0xE2, 0x2E, 0x82, 0x66, 0xCA, 0x60, 0xC0, 0x29, 0x23, 0xAB, 0x0D, 0x53, 0x4E, 0x6F, +0xD5, 0xDB, 0x37, 0x45, 0xDE, 0xFD, 0x8E, 0x2F, 0x03, 0xFF, 0x6A, 0x72, 0x6D, 0x6C, 0x5B, 0x51, +0x8D, 0x1B, 0xAF, 0x92, 0xBB, 0xDD, 0xBC, 0x7F, 0x11, 0xD9, 0x5C, 0x41, 0x1F, 0x10, 0x5A, 0xD8, +0x0A, 0xC1, 0x31, 0x88, 0xA5, 0xCD, 0x7B, 0xBD, 0x2D, 0x74, 0xD0, 0x12, 0xB8, 0xE5, 0xB4, 0xB0, +0x89, 0x69, 0x97, 0x4A, 0x0C, 0x96, 0x77, 0x7E, 0x65, 0xB9, 0xF1, 0x09, 0xC5, 0x6E, 0xC6, 0x84, +0x18, 0xF0, 0x7D, 0xEC, 0x3A, 0xDC, 0x4D, 0x20, 0x79, 0xEE, 0x5F, 0x3E, 0xD7, 0xCB, 0x39, 0x48 +}; + +/* +* SM4_SBOX_T[j] == L(SM4_SBOX[j]). +*/ +alignas(64) +const uint32_t SM4_SBOX_T[256] = { + 0x8ED55B5B, 0xD0924242, 0x4DEAA7A7, 0x06FDFBFB, 0xFCCF3333, 0x65E28787, + 0xC93DF4F4, 0x6BB5DEDE, 0x4E165858, 0x6EB4DADA, 0x44145050, 0xCAC10B0B, + 0x8828A0A0, 0x17F8EFEF, 0x9C2CB0B0, 0x11051414, 0x872BACAC, 0xFB669D9D, + 0xF2986A6A, 0xAE77D9D9, 0x822AA8A8, 0x46BCFAFA, 0x14041010, 0xCFC00F0F, + 0x02A8AAAA, 0x54451111, 0x5F134C4C, 0xBE269898, 0x6D482525, 0x9E841A1A, + 0x1E061818, 0xFD9B6666, 0xEC9E7272, 0x4A430909, 0x10514141, 0x24F7D3D3, + 0xD5934646, 0x53ECBFBF, 0xF89A6262, 0x927BE9E9, 0xFF33CCCC, 0x04555151, + 0x270B2C2C, 0x4F420D0D, 0x59EEB7B7, 0xF3CC3F3F, 0x1CAEB2B2, 0xEA638989, + 0x74E79393, 0x7FB1CECE, 0x6C1C7070, 0x0DABA6A6, 0xEDCA2727, 0x28082020, + 0x48EBA3A3, 0xC1975656, 0x80820202, 0xA3DC7F7F, 0xC4965252, 0x12F9EBEB, + 0xA174D5D5, 0xB38D3E3E, 0xC33FFCFC, 0x3EA49A9A, 0x5B461D1D, 0x1B071C1C, + 0x3BA59E9E, 0x0CFFF3F3, 0x3FF0CFCF, 0xBF72CDCD, 0x4B175C5C, 0x52B8EAEA, + 0x8F810E0E, 0x3D586565, 0xCC3CF0F0, 0x7D196464, 0x7EE59B9B, 0x91871616, + 0x734E3D3D, 0x08AAA2A2, 0xC869A1A1, 0xC76AADAD, 0x85830606, 0x7AB0CACA, + 0xB570C5C5, 0xF4659191, 0xB2D96B6B, 0xA7892E2E, 0x18FBE3E3, 0x47E8AFAF, + 0x330F3C3C, 0x674A2D2D, 0xB071C1C1, 0x0E575959, 0xE99F7676, 0xE135D4D4, + 0x661E7878, 0xB4249090, 0x360E3838, 0x265F7979, 0xEF628D8D, 0x38596161, + 0x95D24747, 0x2AA08A8A, 0xB1259494, 0xAA228888, 0x8C7DF1F1, 0xD73BECEC, + 0x05010404, 0xA5218484, 0x9879E1E1, 0x9B851E1E, 0x84D75353, 0x00000000, + 0x5E471919, 0x0B565D5D, 0xE39D7E7E, 0x9FD04F4F, 0xBB279C9C, 0x1A534949, + 0x7C4D3131, 0xEE36D8D8, 0x0A020808, 0x7BE49F9F, 0x20A28282, 0xD4C71313, + 0xE8CB2323, 0xE69C7A7A, 0x42E9ABAB, 0x43BDFEFE, 0xA2882A2A, 0x9AD14B4B, + 0x40410101, 0xDBC41F1F, 0xD838E0E0, 0x61B7D6D6, 0x2FA18E8E, 0x2BF4DFDF, + 0x3AF1CBCB, 0xF6CD3B3B, 0x1DFAE7E7, 0xE5608585, 0x41155454, 0x25A38686, + 0x60E38383, 0x16ACBABA, 0x295C7575, 0x34A69292, 0xF7996E6E, 0xE434D0D0, + 0x721A6868, 0x01545555, 0x19AFB6B6, 0xDF914E4E, 0xFA32C8C8, 0xF030C0C0, + 0x21F6D7D7, 0xBC8E3232, 0x75B3C6C6, 0x6FE08F8F, 0x691D7474, 0x2EF5DBDB, + 0x6AE18B8B, 0x962EB8B8, 0x8A800A0A, 0xFE679999, 0xE2C92B2B, 0xE0618181, + 0xC0C30303, 0x8D29A4A4, 0xAF238C8C, 0x07A9AEAE, 0x390D3434, 0x1F524D4D, + 0x764F3939, 0xD36EBDBD, 0x81D65757, 0xB7D86F6F, 0xEB37DCDC, 0x51441515, + 0xA6DD7B7B, 0x09FEF7F7, 0xB68C3A3A, 0x932FBCBC, 0x0F030C0C, 0x03FCFFFF, + 0xC26BA9A9, 0xBA73C9C9, 0xD96CB5B5, 0xDC6DB1B1, 0x375A6D6D, 0x15504545, + 0xB98F3636, 0x771B6C6C, 0x13ADBEBE, 0xDA904A4A, 0x57B9EEEE, 0xA9DE7777, + 0x4CBEF2F2, 0x837EFDFD, 0x55114444, 0xBDDA6767, 0x2C5D7171, 0x45400505, + 0x631F7C7C, 0x50104040, 0x325B6969, 0xB8DB6363, 0x220A2828, 0xC5C20707, + 0xF531C4C4, 0xA88A2222, 0x31A79696, 0xF9CE3737, 0x977AEDED, 0x49BFF6F6, + 0x992DB4B4, 0xA475D1D1, 0x90D34343, 0x5A124848, 0x58BAE2E2, 0x71E69797, + 0x64B6D2D2, 0x70B2C2C2, 0xAD8B2626, 0xCD68A5A5, 0xCB955E5E, 0x624B2929, + 0x3C0C3030, 0xCE945A5A, 0xAB76DDDD, 0x867FF9F9, 0xF1649595, 0x5DBBE6E6, + 0x35F2C7C7, 0x2D092424, 0xD1C61717, 0xD66FB9B9, 0xDEC51B1B, 0x94861212, + 0x78186060, 0x30F3C3C3, 0x897CF5F5, 0x5CEFB3B3, 0xD23AE8E8, 0xACDF7373, + 0x794C3535, 0xA0208080, 0x9D78E5E5, 0x56EDBBBB, 0x235E7D7D, 0xC63EF8F8, + 0x8BD45F5F, 0xE7C82F2F, 0xDD39E4E4, 0x68492121 }; + +inline uint32_t SM4_T_slow(uint32_t b) + { + const uint32_t t = make_uint32(SM4_SBOX[get_byte(0,b)], + SM4_SBOX[get_byte(1,b)], + SM4_SBOX[get_byte(2,b)], + SM4_SBOX[get_byte(3,b)]); + + // L linear transform + return t ^ rotl<2>(t) ^ rotl<10>(t) ^ rotl<18>(t) ^ rotl<24>(t); + } + +inline uint32_t SM4_T(uint32_t b) + { + return SM4_SBOX_T[get_byte(0,b)] ^ + rotr< 8>(SM4_SBOX_T[get_byte(1,b)]) ^ + rotr<16>(SM4_SBOX_T[get_byte(2,b)]) ^ + rotr<24>(SM4_SBOX_T[get_byte(3,b)]); + } + +// Variant of T for key schedule +inline uint32_t SM4_Tp(uint32_t b) + { + const uint32_t t = make_uint32(SM4_SBOX[get_byte(0,b)], + SM4_SBOX[get_byte(1,b)], + SM4_SBOX[get_byte(2,b)], + SM4_SBOX[get_byte(3,b)]); + + // L' linear transform + return t ^ rotl<13>(t) ^ rotl<23>(t); + } + +#define SM4_E_RNDS(B, R, F) do { \ + B##0 ^= F(B##1 ^ B##2 ^ B##3 ^ m_RK[4*R+0]); \ + B##1 ^= F(B##2 ^ B##3 ^ B##0 ^ m_RK[4*R+1]); \ + B##2 ^= F(B##3 ^ B##0 ^ B##1 ^ m_RK[4*R+2]); \ + B##3 ^= F(B##0 ^ B##1 ^ B##2 ^ m_RK[4*R+3]); \ + } while(0) + +#define SM4_D_RNDS(B, R, F) do { \ + B##0 ^= F(B##1 ^ B##2 ^ B##3 ^ m_RK[4*R+3]); \ + B##1 ^= F(B##2 ^ B##3 ^ B##0 ^ m_RK[4*R+2]); \ + B##2 ^= F(B##3 ^ B##0 ^ B##1 ^ m_RK[4*R+1]); \ + B##3 ^= F(B##0 ^ B##1 ^ B##2 ^ m_RK[4*R+0]); \ + } while(0) + +} + +/* +* SM4 Encryption +*/ +void SM4::encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const + { + verify_key_set(m_RK.empty() == false); + +#if defined(BOTAN_HAS_SM4_ARMV8) + if(CPUID::has_arm_sm4()) + return sm4_armv8_encrypt(in, out, blocks); +#endif + + while(blocks >= 2) + { + uint32_t B0 = load_be<uint32_t>(in, 0); + uint32_t B1 = load_be<uint32_t>(in, 1); + uint32_t B2 = load_be<uint32_t>(in, 2); + uint32_t B3 = load_be<uint32_t>(in, 3); + + uint32_t C0 = load_be<uint32_t>(in, 4); + uint32_t C1 = load_be<uint32_t>(in, 5); + uint32_t C2 = load_be<uint32_t>(in, 6); + uint32_t C3 = load_be<uint32_t>(in, 7); + + SM4_E_RNDS(B, 0, SM4_T_slow); + SM4_E_RNDS(C, 0, SM4_T_slow); + SM4_E_RNDS(B, 1, SM4_T); + SM4_E_RNDS(C, 1, SM4_T); + SM4_E_RNDS(B, 2, SM4_T); + SM4_E_RNDS(C, 2, SM4_T); + SM4_E_RNDS(B, 3, SM4_T); + SM4_E_RNDS(C, 3, SM4_T); + SM4_E_RNDS(B, 4, SM4_T); + SM4_E_RNDS(C, 4, SM4_T); + SM4_E_RNDS(B, 5, SM4_T); + SM4_E_RNDS(C, 5, SM4_T); + SM4_E_RNDS(B, 6, SM4_T); + SM4_E_RNDS(C, 6, SM4_T); + SM4_E_RNDS(B, 7, SM4_T_slow); + SM4_E_RNDS(C, 7, SM4_T_slow); + + store_be(out, B3, B2, B1, B0, C3, C2, C1, C0); + + in += 2*BLOCK_SIZE; + out += 2*BLOCK_SIZE; + blocks -= 2; + } + + for(size_t i = 0; i != blocks; ++i) + { + uint32_t B0 = load_be<uint32_t>(in, 0); + uint32_t B1 = load_be<uint32_t>(in, 1); + uint32_t B2 = load_be<uint32_t>(in, 2); + uint32_t B3 = load_be<uint32_t>(in, 3); + + SM4_E_RNDS(B, 0, SM4_T_slow); + SM4_E_RNDS(B, 1, SM4_T); + SM4_E_RNDS(B, 2, SM4_T); + SM4_E_RNDS(B, 3, SM4_T); + SM4_E_RNDS(B, 4, SM4_T); + SM4_E_RNDS(B, 5, SM4_T); + SM4_E_RNDS(B, 6, SM4_T); + SM4_E_RNDS(B, 7, SM4_T_slow); + + store_be(out, B3, B2, B1, B0); + + in += BLOCK_SIZE; + out += BLOCK_SIZE; + } + } + +/* +* SM4 Decryption +*/ +void SM4::decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const + { + verify_key_set(m_RK.empty() == false); + +#if defined(BOTAN_HAS_SM4_ARMV8) + if(CPUID::has_arm_sm4()) + return sm4_armv8_decrypt(in, out, blocks); +#endif + + while(blocks >= 2) + { + uint32_t B0 = load_be<uint32_t>(in, 0); + uint32_t B1 = load_be<uint32_t>(in, 1); + uint32_t B2 = load_be<uint32_t>(in, 2); + uint32_t B3 = load_be<uint32_t>(in, 3); + + uint32_t C0 = load_be<uint32_t>(in, 4); + uint32_t C1 = load_be<uint32_t>(in, 5); + uint32_t C2 = load_be<uint32_t>(in, 6); + uint32_t C3 = load_be<uint32_t>(in, 7); + + SM4_D_RNDS(B, 7, SM4_T_slow); + SM4_D_RNDS(C, 7, SM4_T_slow); + SM4_D_RNDS(B, 6, SM4_T); + SM4_D_RNDS(C, 6, SM4_T); + SM4_D_RNDS(B, 5, SM4_T); + SM4_D_RNDS(C, 5, SM4_T); + SM4_D_RNDS(B, 4, SM4_T); + SM4_D_RNDS(C, 4, SM4_T); + SM4_D_RNDS(B, 3, SM4_T); + SM4_D_RNDS(C, 3, SM4_T); + SM4_D_RNDS(B, 2, SM4_T); + SM4_D_RNDS(C, 2, SM4_T); + SM4_D_RNDS(B, 1, SM4_T); + SM4_D_RNDS(C, 1, SM4_T); + SM4_D_RNDS(B, 0, SM4_T_slow); + SM4_D_RNDS(C, 0, SM4_T_slow); + + store_be(out, B3, B2, B1, B0, C3, C2, C1, C0); + + in += 2*BLOCK_SIZE; + out += 2*BLOCK_SIZE; + blocks -= 2; + } + + for(size_t i = 0; i != blocks; ++i) + { + uint32_t B0 = load_be<uint32_t>(in, 0); + uint32_t B1 = load_be<uint32_t>(in, 1); + uint32_t B2 = load_be<uint32_t>(in, 2); + uint32_t B3 = load_be<uint32_t>(in, 3); + + SM4_D_RNDS(B, 7, SM4_T_slow); + SM4_D_RNDS(B, 6, SM4_T); + SM4_D_RNDS(B, 5, SM4_T); + SM4_D_RNDS(B, 4, SM4_T); + SM4_D_RNDS(B, 3, SM4_T); + SM4_D_RNDS(B, 2, SM4_T); + SM4_D_RNDS(B, 1, SM4_T); + SM4_D_RNDS(B, 0, SM4_T_slow); + + store_be(out, B3, B2, B1, B0); + + in += BLOCK_SIZE; + out += BLOCK_SIZE; + } + } + +#undef SM4_E_RNDS +#undef SM4_D_RNDS + +/* +* SM4 Key Schedule +*/ +void SM4::key_schedule(const uint8_t key[], size_t) + { + // System parameter or family key + const uint32_t FK[4] = { 0xa3b1bac6, 0x56aa3350, 0x677d9197, 0xb27022dc }; + + const uint32_t CK[32] = { + 0x00070E15, 0x1C232A31, 0x383F464D, 0x545B6269, + 0x70777E85, 0x8C939AA1, 0xA8AFB6BD, 0xC4CBD2D9, + 0xE0E7EEF5, 0xFC030A11, 0x181F262D, 0x343B4249, + 0x50575E65, 0x6C737A81, 0x888F969D, 0xA4ABB2B9, + 0xC0C7CED5, 0xDCE3EAF1, 0xF8FF060D, 0x141B2229, + 0x30373E45, 0x4C535A61, 0x686F767D, 0x848B9299, + 0xA0A7AEB5, 0xBCC3CAD1, 0xD8DFE6ED, 0xF4FB0209, + 0x10171E25, 0x2C333A41, 0x484F565D, 0x646B7279 + }; + + secure_vector<uint32_t> K(4); + K[0] = load_be<uint32_t>(key, 0) ^ FK[0]; + K[1] = load_be<uint32_t>(key, 1) ^ FK[1]; + K[2] = load_be<uint32_t>(key, 2) ^ FK[2]; + K[3] = load_be<uint32_t>(key, 3) ^ FK[3]; + + m_RK.resize(32); + for(size_t i = 0; i != 32; ++i) + { + K[i % 4] ^= SM4_Tp(K[(i+1)%4] ^ K[(i+2)%4] ^ K[(i+3)%4] ^ CK[i]); + m_RK[i] = K[i % 4]; + } + } + +void SM4::clear() + { + zap(m_RK); + } + +size_t SM4::parallelism() const + { +#if defined(BOTAN_HAS_SM4_ARMV8) + if(CPUID::has_arm_sm4()) + { + return 4; + } +#endif + + return 1; + } + +std::string SM4::provider() const + { +#if defined(BOTAN_HAS_SM4_ARMV8) + if(CPUID::has_arm_sm4()) + { + return "armv8"; + } +#endif + + return "base"; + } + +} |