diff --git a/target/mips/helper.h b/target/mips/helper.h index 292336ec62..c4e7693df6 100644 --- a/target/mips/helper.h +++ b/target/mips/helper.h @@ -50,6 +50,8 @@ DEF_HELPER_2(octeon_cp2_mt_gfm_xormul1, void, env, i64) DEF_HELPER_1(octeon_cp2_mt_sha3_startop, void, env) DEF_HELPER_2(octeon_cp2_mt_zuc_start, void, env, i64) DEF_HELPER_2(octeon_cp2_mt_zuc_more, void, env, i64) +DEF_HELPER_2(octeon_cp2_mt_snow3g_start, void, env, i64) +DEF_HELPER_2(octeon_cp2_mt_snow3g_more, void, env, i64) /* microMIPS functions */ DEF_HELPER_4(lwm, void, env, tl, tl, i32) diff --git a/target/mips/tcg/octeon_crypto.c b/target/mips/tcg/octeon_crypto.c index 548269b9b8..930a67346e 100644 --- a/target/mips/tcg/octeon_crypto.c +++ b/target/mips/tcg/octeon_crypto.c @@ -251,6 +251,11 @@ static uint32_t octeon_crypto_lo32(uint64_t value) return value; } +static uint64_t octeon_crypto_pack32(uint32_t hi, uint32_t lo) +{ + return ((uint64_t)hi << 32) | lo; +} + static const uint8_t octeon_zuc_s0[256] = { 0x3e, 0x72, 0x5b, 0x47, 0xca, 0xe0, 0x00, 0x33, 0x04, 0xd1, 0x54, 0x98, 0x09, 0xb9, 0x6d, 0xcb, @@ -569,6 +574,283 @@ static void octeon_zuc_more(MIPSOcteonCryptoState *crypto, uint64_t data) octeon_zuc_advance_window(crypto, z2); } +static const uint8_t octeon_snow3g_sr[256] = { + 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, + 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76, + 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, + 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, + 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, + 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15, + 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, + 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75, + 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, + 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84, + 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, + 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf, + 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, + 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8, + 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, + 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, + 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, + 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73, + 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, + 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb, + 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, + 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79, + 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, + 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08, + 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, + 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a, + 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, + 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e, + 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, + 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf, + 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, + 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16, +}; + +static const uint8_t octeon_snow3g_sq[256] = { + 0x25, 0x24, 0x73, 0x67, 0xd7, 0xae, 0x5c, 0x30, + 0xa4, 0xee, 0x6e, 0xcb, 0x7d, 0xb5, 0x82, 0xdb, + 0xe4, 0x8e, 0x48, 0x49, 0x4f, 0x5d, 0x6a, 0x78, + 0x70, 0x88, 0xe8, 0x5f, 0x5e, 0x84, 0x65, 0xe2, + 0xd8, 0xe9, 0xcc, 0xed, 0x40, 0x2f, 0x11, 0x28, + 0x57, 0xd2, 0xac, 0xe3, 0x4a, 0x15, 0x1b, 0xb9, + 0xb2, 0x80, 0x85, 0xa6, 0x2e, 0x02, 0x47, 0x29, + 0x07, 0x4b, 0x0e, 0xc1, 0x51, 0xaa, 0x89, 0xd4, + 0xca, 0x01, 0x46, 0xb3, 0xef, 0xdd, 0x44, 0x7b, + 0xc2, 0x7f, 0xbe, 0xc3, 0x9f, 0x20, 0x4c, 0x64, + 0x83, 0xa2, 0x68, 0x42, 0x13, 0xb4, 0x41, 0xcd, + 0xba, 0xc6, 0xbb, 0x6d, 0x4d, 0x71, 0x21, 0xf4, + 0x8d, 0xb0, 0xe5, 0x93, 0xfe, 0x8f, 0xe6, 0xcf, + 0x43, 0x45, 0x31, 0x22, 0x37, 0x36, 0x96, 0xfa, + 0xbc, 0x0f, 0x08, 0x52, 0x1d, 0x55, 0x1a, 0xc5, + 0x4e, 0x23, 0x69, 0x7a, 0x92, 0xff, 0x5b, 0x5a, + 0xeb, 0x9a, 0x1c, 0xa9, 0xd1, 0x7e, 0x0d, 0xfc, + 0x50, 0x8a, 0xb6, 0x62, 0xf5, 0x0a, 0xf8, 0xdc, + 0x03, 0x3c, 0x0c, 0x39, 0xf1, 0xb8, 0xf3, 0x3d, + 0xf2, 0xd5, 0x97, 0x66, 0x81, 0x32, 0xa0, 0x00, + 0x06, 0xce, 0xf6, 0xea, 0xb7, 0x17, 0xf7, 0x8c, + 0x79, 0xd6, 0xa7, 0xbf, 0x8b, 0x3f, 0x1f, 0x53, + 0x63, 0x75, 0x35, 0x2c, 0x60, 0xfd, 0x27, 0xd3, + 0x94, 0xa5, 0x7c, 0xa1, 0x05, 0x58, 0x2d, 0xbd, + 0xd9, 0xc7, 0xaf, 0x6b, 0x54, 0x0b, 0xe0, 0x38, + 0x04, 0xc8, 0x9d, 0xe7, 0x14, 0xb1, 0x87, 0x9c, + 0xdf, 0x6f, 0xf9, 0xda, 0x2a, 0xc4, 0x59, 0x16, + 0x74, 0x91, 0xab, 0x26, 0x61, 0x76, 0x34, 0x2b, + 0xad, 0x99, 0xfb, 0x72, 0xec, 0x33, 0x12, 0xde, + 0x98, 0x3b, 0xc0, 0x9b, 0x3e, 0x18, 0x10, 0x3a, + 0x56, 0xe1, 0x77, 0xc9, 0x1e, 0x9e, 0x95, 0xa3, + 0x90, 0x19, 0xa8, 0x6c, 0x09, 0xd0, 0xf0, 0x86, +}; + +static uint8_t octeon_snow3g_mulx(uint8_t v, uint8_t c) +{ + return (v & 0x80) ? ((v << 1) ^ c) : (v << 1); +} + +static uint8_t octeon_snow3g_mulxpow(uint8_t v, unsigned int n, uint8_t c) +{ + while (n-- > 0) { + v = octeon_snow3g_mulx(v, c); + } + return v; +} + +static uint32_t octeon_snow3g_pack32(uint8_t b0, uint8_t b1, + uint8_t b2, uint8_t b3) +{ + return ((uint32_t)b0 << 24) + | ((uint32_t)b1 << 16) + | ((uint32_t)b2 << 8) + | b3; +} + +static uint32_t octeon_snow3g_mulalpha(uint8_t c) +{ + return octeon_snow3g_pack32(octeon_snow3g_mulxpow(c, 23, 0xa9), + octeon_snow3g_mulxpow(c, 245, 0xa9), + octeon_snow3g_mulxpow(c, 48, 0xa9), + octeon_snow3g_mulxpow(c, 239, 0xa9)); +} + +static uint32_t octeon_snow3g_divalpha(uint8_t c) +{ + return octeon_snow3g_pack32(octeon_snow3g_mulxpow(c, 16, 0xa9), + octeon_snow3g_mulxpow(c, 39, 0xa9), + octeon_snow3g_mulxpow(c, 6, 0xa9), + octeon_snow3g_mulxpow(c, 64, 0xa9)); +} + +static uint32_t octeon_snow3g_s1(uint32_t w) +{ + uint8_t x0 = octeon_snow3g_sr[w >> 24]; + uint8_t x1 = octeon_snow3g_sr[(uint8_t)(w >> 16)]; + uint8_t x2 = octeon_snow3g_sr[(uint8_t)(w >> 8)]; + uint8_t x3 = octeon_snow3g_sr[(uint8_t)w]; + uint8_t r0 = octeon_snow3g_mulx(x0, 0x1b) ^ x1 ^ x2 ^ + octeon_snow3g_mulx(x3, 0x1b) ^ x3; + uint8_t r1 = octeon_snow3g_mulx(x0, 0x1b) ^ x0 ^ + octeon_snow3g_mulx(x1, 0x1b) ^ x2 ^ x3; + uint8_t r2 = x0 ^ octeon_snow3g_mulx(x1, 0x1b) ^ x1 ^ + octeon_snow3g_mulx(x2, 0x1b) ^ x3; + uint8_t r3 = x0 ^ x1 ^ octeon_snow3g_mulx(x2, 0x1b) ^ x2 ^ + octeon_snow3g_mulx(x3, 0x1b); + + return octeon_snow3g_pack32(r0, r1, r2, r3); +} + +static uint32_t octeon_snow3g_s2(uint32_t w) +{ + uint8_t x0 = octeon_snow3g_sq[w >> 24]; + uint8_t x1 = octeon_snow3g_sq[(uint8_t)(w >> 16)]; + uint8_t x2 = octeon_snow3g_sq[(uint8_t)(w >> 8)]; + uint8_t x3 = octeon_snow3g_sq[(uint8_t)w]; + uint8_t r0 = octeon_snow3g_mulx(x0, 0x69) ^ x1 ^ x2 ^ + octeon_snow3g_mulx(x3, 0x69) ^ x3; + uint8_t r1 = octeon_snow3g_mulx(x0, 0x69) ^ x0 ^ + octeon_snow3g_mulx(x1, 0x69) ^ x2 ^ x3; + uint8_t r2 = x0 ^ octeon_snow3g_mulx(x1, 0x69) ^ x1 ^ + octeon_snow3g_mulx(x2, 0x69) ^ x3; + uint8_t r3 = x0 ^ x1 ^ octeon_snow3g_mulx(x2, 0x69) ^ x2 ^ + octeon_snow3g_mulx(x3, 0x69); + + return octeon_snow3g_pack32(r0, r1, r2, r3); +} + +static uint32_t octeon_snow3g_lfsr(const MIPSOcteonCryptoState *crypto, + unsigned int index) +{ + uint64_t pair = crypto->hsh_dat[index / 2]; + + return index & 1 ? octeon_crypto_lo32(pair) : octeon_crypto_hi32(pair); +} + +static void octeon_snow3g_set_lfsr(MIPSOcteonCryptoState *crypto, + unsigned int index, uint32_t value) +{ + uint32_t hi = octeon_crypto_hi32(crypto->hsh_dat[index / 2]); + uint32_t lo = octeon_crypto_lo32(crypto->hsh_dat[index / 2]); + + if (index & 1) { + lo = value; + } else { + hi = value; + } + crypto->hsh_dat[index / 2] = octeon_crypto_pack32(hi, lo); +} + +static uint32_t octeon_snow3g_fsm(const MIPSOcteonCryptoState *crypto, + unsigned int index) +{ + return crypto->hsh_iv[1 + index]; +} + +static void octeon_snow3g_set_fsm(MIPSOcteonCryptoState *crypto, + unsigned int index, uint32_t value) +{ + crypto->hsh_iv[1 + index] = value; +} + +static uint32_t octeon_snow3g_clock_fsm(MIPSOcteonCryptoState *crypto) +{ + uint32_t fsm0 = octeon_snow3g_fsm(crypto, 0); + uint32_t fsm1 = octeon_snow3g_fsm(crypto, 1); + uint32_t fsm2 = octeon_snow3g_fsm(crypto, 2); + uint32_t f = (uint32_t)(octeon_snow3g_lfsr(crypto, 15) + fsm0) ^ fsm1; + uint32_t r = (uint32_t)(fsm1 + (fsm2 ^ octeon_snow3g_lfsr(crypto, 5))); + + octeon_snow3g_set_fsm(crypto, 2, octeon_snow3g_s2(fsm1)); + octeon_snow3g_set_fsm(crypto, 1, octeon_snow3g_s1(fsm0)); + octeon_snow3g_set_fsm(crypto, 0, r); + return f; +} + +static void octeon_snow3g_clock_lfsr(MIPSOcteonCryptoState *crypto, + bool init_mode, uint32_t f) +{ + uint32_t lfsr[16]; + uint32_t s0; + uint32_t s11; + uint32_t v; + int i; + + for (i = 0; i < 16; i++) { + lfsr[i] = octeon_snow3g_lfsr(crypto, i); + } + + s0 = lfsr[0]; + s11 = lfsr[11]; + v = (s0 << 8) ^ octeon_snow3g_mulalpha(s0 >> 24) ^ + lfsr[2] ^ (s11 >> 8) ^ octeon_snow3g_divalpha((uint8_t)s11); + + if (init_mode) { + v ^= f; + } + + for (i = 0; i < 15; i++) { + octeon_snow3g_set_lfsr(crypto, i, lfsr[i + 1]); + } + octeon_snow3g_set_lfsr(crypto, 15, v); +} + +static uint32_t octeon_snow3g_generate_word(MIPSOcteonCryptoState *crypto) +{ + uint32_t f = octeon_snow3g_clock_fsm(crypto); + uint32_t z = f ^ octeon_snow3g_lfsr(crypto, 0); + + octeon_snow3g_clock_lfsr(crypto, false, 0); + return z; +} + +static void octeon_snow3g_queue_result(MIPSOcteonCryptoState *crypto) +{ + uint32_t z0 = octeon_snow3g_generate_word(crypto); + uint32_t z1 = octeon_snow3g_generate_word(crypto); + + crypto->hsh_iv[0] = octeon_crypto_pack32(z0, z1); +} + +static void octeon_snow3g_start(MIPSOcteonCryptoState *crypto, uint64_t data) +{ + int i; + + for (i = 0; i < 14; i++) { + octeon_snow3g_set_lfsr(crypto, i, octeon_snow3g_lfsr(crypto, i)); + } + octeon_snow3g_set_lfsr(crypto, 14, data >> 32); + octeon_snow3g_set_lfsr(crypto, 15, data); + for (i = 0; i < 3; i++) { + octeon_snow3g_set_fsm(crypto, i, 0); + } + + for (i = 0; i < 32; i++) { + uint32_t f = octeon_snow3g_clock_fsm(crypto); + + octeon_snow3g_clock_lfsr(crypto, true, f); + } + + (void)octeon_snow3g_clock_fsm(crypto); + octeon_snow3g_clock_lfsr(crypto, false, 0); + octeon_snow3g_queue_result(crypto); +} + +static void octeon_snow3g_more(MIPSOcteonCryptoState *crypto) +{ + octeon_snow3g_queue_result(crypto); +} + +void helper_octeon_cp2_mt_snow3g_start(CPUMIPSState *env, uint64_t value) +{ + octeon_snow3g_start(&env->octeon_crypto, value); +} + +void helper_octeon_cp2_mt_snow3g_more(CPUMIPSState *env, uint64_t value) +{ + (void)value; + octeon_snow3g_more(&env->octeon_crypto); +} + void helper_octeon_cp2_mt_zuc_start(CPUMIPSState *env, uint64_t value) { octeon_zuc_start(&env->octeon_crypto, value);