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author | JustOff <Off.Just.Off@gmail.com> | 2018-06-09 15:11:22 +0300 |
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committer | JustOff <Off.Just.Off@gmail.com> | 2018-06-11 16:42:50 +0300 |
commit | f83f62e1bff0c2aedc32e67fe369ba923c5b104a (patch) | |
tree | fbb69e76754552dde5c3c5d4fe928ed9693f601a /security/nss/lib/freebl/chacha20_vec.c | |
parent | 75323087aea91719bbb4f766bc6298d0618f0163 (diff) | |
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Update NSS to 3.36.4-RTM
Diffstat (limited to 'security/nss/lib/freebl/chacha20_vec.c')
-rw-r--r-- | security/nss/lib/freebl/chacha20_vec.c | 327 |
1 files changed, 0 insertions, 327 deletions
diff --git a/security/nss/lib/freebl/chacha20_vec.c b/security/nss/lib/freebl/chacha20_vec.c deleted file mode 100644 index 12f94d897..000000000 --- a/security/nss/lib/freebl/chacha20_vec.c +++ /dev/null @@ -1,327 +0,0 @@ -/* This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -/* This implementation is by Ted Krovetz and was submitted to SUPERCOP and - * marked as public domain. It was been altered to allow for non-aligned inputs - * and to allow the block counter to be passed in specifically. */ - -#include <string.h> - -#include "chacha20.h" -#include "blapii.h" - -#ifndef CHACHA_RNDS -#define CHACHA_RNDS 20 /* 8 (high speed), 20 (conservative), 12 (middle) */ -#endif - -/* Architecture-neutral way to specify 16-byte vector of ints */ -typedef unsigned vec __attribute__((vector_size(16))); - -/* This implementation is designed for Neon, SSE and AltiVec machines. The - * following specify how to do certain vector operations efficiently on - * each architecture, using intrinsics. - * This implementation supports parallel processing of multiple blocks, - * including potentially using general-purpose registers. - */ -#if __ARM_NEON__ -#include <arm_neon.h> -#define GPR_TOO 1 -#define VBPI 2 -#define ONE (vec) vsetq_lane_u32(1, vdupq_n_u32(0), 0) -#define LOAD(m) (vec)(*((vec *)(m))) -#define STORE(m, r) (*((vec *)(m))) = (r) -#define ROTV1(x) (vec) vextq_u32((uint32x4_t)x, (uint32x4_t)x, 1) -#define ROTV2(x) (vec) vextq_u32((uint32x4_t)x, (uint32x4_t)x, 2) -#define ROTV3(x) (vec) vextq_u32((uint32x4_t)x, (uint32x4_t)x, 3) -#define ROTW16(x) (vec) vrev32q_u16((uint16x8_t)x) -#if __clang__ -#define ROTW7(x) (x << ((vec){ 7, 7, 7, 7 })) ^ (x >> ((vec){ 25, 25, 25, 25 })) -#define ROTW8(x) (x << ((vec){ 8, 8, 8, 8 })) ^ (x >> ((vec){ 24, 24, 24, 24 })) -#define ROTW12(x) (x << ((vec){ 12, 12, 12, 12 })) ^ (x >> ((vec){ 20, 20, 20, 20 })) -#else -#define ROTW7(x) (vec) vsriq_n_u32(vshlq_n_u32((uint32x4_t)x, 7), (uint32x4_t)x, 25) -#define ROTW8(x) (vec) vsriq_n_u32(vshlq_n_u32((uint32x4_t)x, 8), (uint32x4_t)x, 24) -#define ROTW12(x) (vec) vsriq_n_u32(vshlq_n_u32((uint32x4_t)x, 12), (uint32x4_t)x, 20) -#endif -#elif __SSE2__ -#include <emmintrin.h> -#define GPR_TOO 0 -#if __clang__ -#define VBPI 4 -#else -#define VBPI 3 -#endif -#define ONE (vec) _mm_set_epi32(0, 0, 0, 1) -#define LOAD(m) (vec) _mm_loadu_si128((__m128i *)(m)) -#define STORE(m, r) _mm_storeu_si128((__m128i *)(m), (__m128i)(r)) -#define ROTV1(x) (vec) _mm_shuffle_epi32((__m128i)x, _MM_SHUFFLE(0, 3, 2, 1)) -#define ROTV2(x) (vec) _mm_shuffle_epi32((__m128i)x, _MM_SHUFFLE(1, 0, 3, 2)) -#define ROTV3(x) (vec) _mm_shuffle_epi32((__m128i)x, _MM_SHUFFLE(2, 1, 0, 3)) -#define ROTW7(x) (vec)(_mm_slli_epi32((__m128i)x, 7) ^ _mm_srli_epi32((__m128i)x, 25)) -#define ROTW12(x) (vec)(_mm_slli_epi32((__m128i)x, 12) ^ _mm_srli_epi32((__m128i)x, 20)) -#if __SSSE3__ -#include <tmmintrin.h> -#define ROTW8(x) (vec) _mm_shuffle_epi8((__m128i)x, _mm_set_epi8(14, 13, 12, 15, 10, 9, 8, 11, 6, 5, 4, 7, 2, 1, 0, 3)) -#define ROTW16(x) (vec) _mm_shuffle_epi8((__m128i)x, _mm_set_epi8(13, 12, 15, 14, 9, 8, 11, 10, 5, 4, 7, 6, 1, 0, 3, 2)) -#else -#define ROTW8(x) (vec)(_mm_slli_epi32((__m128i)x, 8) ^ _mm_srli_epi32((__m128i)x, 24)) -#define ROTW16(x) (vec)(_mm_slli_epi32((__m128i)x, 16) ^ _mm_srli_epi32((__m128i)x, 16)) -#endif -#else -#error-- Implementation supports only machines with neon or SSE2 -#endif - -#ifndef REVV_BE -#define REVV_BE(x) (x) -#endif - -#ifndef REVW_BE -#define REVW_BE(x) (x) -#endif - -#define BPI (VBPI + GPR_TOO) /* Blocks computed per loop iteration */ - -#define DQROUND_VECTORS(a, b, c, d) \ - a += b; \ - d ^= a; \ - d = ROTW16(d); \ - c += d; \ - b ^= c; \ - b = ROTW12(b); \ - a += b; \ - d ^= a; \ - d = ROTW8(d); \ - c += d; \ - b ^= c; \ - b = ROTW7(b); \ - b = ROTV1(b); \ - c = ROTV2(c); \ - d = ROTV3(d); \ - a += b; \ - d ^= a; \ - d = ROTW16(d); \ - c += d; \ - b ^= c; \ - b = ROTW12(b); \ - a += b; \ - d ^= a; \ - d = ROTW8(d); \ - c += d; \ - b ^= c; \ - b = ROTW7(b); \ - b = ROTV3(b); \ - c = ROTV2(c); \ - d = ROTV1(d); - -#define QROUND_WORDS(a, b, c, d) \ - a = a + b; \ - d ^= a; \ - d = d << 16 | d >> 16; \ - c = c + d; \ - b ^= c; \ - b = b << 12 | b >> 20; \ - a = a + b; \ - d ^= a; \ - d = d << 8 | d >> 24; \ - c = c + d; \ - b ^= c; \ - b = b << 7 | b >> 25; - -#define WRITE_XOR(in, op, d, v0, v1, v2, v3) \ - STORE(op + d + 0, LOAD(in + d + 0) ^ REVV_BE(v0)); \ - STORE(op + d + 4, LOAD(in + d + 4) ^ REVV_BE(v1)); \ - STORE(op + d + 8, LOAD(in + d + 8) ^ REVV_BE(v2)); \ - STORE(op + d + 12, LOAD(in + d + 12) ^ REVV_BE(v3)); - -void NO_SANITIZE_ALIGNMENT -ChaCha20XOR(unsigned char *out, const unsigned char *in, unsigned int inlen, - const unsigned char key[32], const unsigned char nonce[12], - uint32_t counter) -{ - unsigned iters, i, *op = (unsigned *)out, *ip = (unsigned *)in, *kp; -#if defined(__ARM_NEON__) - unsigned *np; -#endif - vec s0, s1, s2, s3; -#if !defined(__ARM_NEON__) && !defined(__SSE2__) - __attribute__((aligned(16))) unsigned key[8], nonce[4]; -#endif - __attribute__((aligned(16))) unsigned chacha_const[] = - { 0x61707865, 0x3320646E, 0x79622D32, 0x6B206574 }; -#if defined(__ARM_NEON__) || defined(__SSE2__) - kp = (unsigned *)key; -#else - ((vec *)key)[0] = REVV_BE(((vec *)key)[0]); - ((vec *)key)[1] = REVV_BE(((vec *)key)[1]); - ((unsigned *)nonce)[0] = REVW_BE(((unsigned *)nonce)[0]); - ((unsigned *)nonce)[1] = REVW_BE(((unsigned *)nonce)[1]); - ((unsigned *)nonce)[2] = REVW_BE(((unsigned *)nonce)[2]); - ((unsigned *)nonce)[3] = REVW_BE(((unsigned *)nonce)[3]); - kp = (unsigned *)key; - np = (unsigned *)nonce; -#endif -#if defined(__ARM_NEON__) - np = (unsigned *)nonce; -#endif - s0 = LOAD(chacha_const); - s1 = LOAD(&((vec *)kp)[0]); - s2 = LOAD(&((vec *)kp)[1]); - s3 = (vec){ - counter, - ((uint32_t *)nonce)[0], - ((uint32_t *)nonce)[1], - ((uint32_t *)nonce)[2] - }; - - for (iters = 0; iters < inlen / (BPI * 64); iters++) { -#if GPR_TOO - register unsigned x0, x1, x2, x3, x4, x5, x6, x7, x8, - x9, x10, x11, x12, x13, x14, x15; -#endif -#if VBPI > 2 - vec v8, v9, v10, v11; -#endif -#if VBPI > 3 - vec v12, v13, v14, v15; -#endif - - vec v0, v1, v2, v3, v4, v5, v6, v7; - v4 = v0 = s0; - v5 = v1 = s1; - v6 = v2 = s2; - v3 = s3; - v7 = v3 + ONE; -#if VBPI > 2 - v8 = v4; - v9 = v5; - v10 = v6; - v11 = v7 + ONE; -#endif -#if VBPI > 3 - v12 = v8; - v13 = v9; - v14 = v10; - v15 = v11 + ONE; -#endif -#if GPR_TOO - x0 = chacha_const[0]; - x1 = chacha_const[1]; - x2 = chacha_const[2]; - x3 = chacha_const[3]; - x4 = kp[0]; - x5 = kp[1]; - x6 = kp[2]; - x7 = kp[3]; - x8 = kp[4]; - x9 = kp[5]; - x10 = kp[6]; - x11 = kp[7]; - x12 = counter + BPI * iters + (BPI - 1); - x13 = np[0]; - x14 = np[1]; - x15 = np[2]; -#endif - for (i = CHACHA_RNDS / 2; i; i--) { - DQROUND_VECTORS(v0, v1, v2, v3) - DQROUND_VECTORS(v4, v5, v6, v7) -#if VBPI > 2 - DQROUND_VECTORS(v8, v9, v10, v11) -#endif -#if VBPI > 3 - DQROUND_VECTORS(v12, v13, v14, v15) -#endif -#if GPR_TOO - QROUND_WORDS(x0, x4, x8, x12) - QROUND_WORDS(x1, x5, x9, x13) - QROUND_WORDS(x2, x6, x10, x14) - QROUND_WORDS(x3, x7, x11, x15) - QROUND_WORDS(x0, x5, x10, x15) - QROUND_WORDS(x1, x6, x11, x12) - QROUND_WORDS(x2, x7, x8, x13) - QROUND_WORDS(x3, x4, x9, x14) -#endif - } - - WRITE_XOR(ip, op, 0, v0 + s0, v1 + s1, v2 + s2, v3 + s3) - s3 += ONE; - WRITE_XOR(ip, op, 16, v4 + s0, v5 + s1, v6 + s2, v7 + s3) - s3 += ONE; -#if VBPI > 2 - WRITE_XOR(ip, op, 32, v8 + s0, v9 + s1, v10 + s2, v11 + s3) - s3 += ONE; -#endif -#if VBPI > 3 - WRITE_XOR(ip, op, 48, v12 + s0, v13 + s1, v14 + s2, v15 + s3) - s3 += ONE; -#endif - ip += VBPI * 16; - op += VBPI * 16; -#if GPR_TOO - op[0] = REVW_BE(REVW_BE(ip[0]) ^ (x0 + chacha_const[0])); - op[1] = REVW_BE(REVW_BE(ip[1]) ^ (x1 + chacha_const[1])); - op[2] = REVW_BE(REVW_BE(ip[2]) ^ (x2 + chacha_const[2])); - op[3] = REVW_BE(REVW_BE(ip[3]) ^ (x3 + chacha_const[3])); - op[4] = REVW_BE(REVW_BE(ip[4]) ^ (x4 + kp[0])); - op[5] = REVW_BE(REVW_BE(ip[5]) ^ (x5 + kp[1])); - op[6] = REVW_BE(REVW_BE(ip[6]) ^ (x6 + kp[2])); - op[7] = REVW_BE(REVW_BE(ip[7]) ^ (x7 + kp[3])); - op[8] = REVW_BE(REVW_BE(ip[8]) ^ (x8 + kp[4])); - op[9] = REVW_BE(REVW_BE(ip[9]) ^ (x9 + kp[5])); - op[10] = REVW_BE(REVW_BE(ip[10]) ^ (x10 + kp[6])); - op[11] = REVW_BE(REVW_BE(ip[11]) ^ (x11 + kp[7])); - op[12] = REVW_BE(REVW_BE(ip[12]) ^ (x12 + counter + BPI * iters + (BPI - 1))); - op[13] = REVW_BE(REVW_BE(ip[13]) ^ (x13 + np[0])); - op[14] = REVW_BE(REVW_BE(ip[14]) ^ (x14 + np[1])); - op[15] = REVW_BE(REVW_BE(ip[15]) ^ (x15 + np[2])); - s3 += ONE; - ip += 16; - op += 16; -#endif - } - - for (iters = inlen % (BPI * 64) / 64; iters != 0; iters--) { - vec v0 = s0, v1 = s1, v2 = s2, v3 = s3; - for (i = CHACHA_RNDS / 2; i; i--) { - DQROUND_VECTORS(v0, v1, v2, v3); - } - WRITE_XOR(ip, op, 0, v0 + s0, v1 + s1, v2 + s2, v3 + s3) - s3 += ONE; - ip += 16; - op += 16; - } - - inlen = inlen % 64; - if (inlen) { - __attribute__((aligned(16))) vec buf[4]; - vec v0, v1, v2, v3; - v0 = s0; - v1 = s1; - v2 = s2; - v3 = s3; - for (i = CHACHA_RNDS / 2; i; i--) { - DQROUND_VECTORS(v0, v1, v2, v3); - } - - if (inlen >= 16) { - STORE(op + 0, LOAD(ip + 0) ^ REVV_BE(v0 + s0)); - if (inlen >= 32) { - STORE(op + 4, LOAD(ip + 4) ^ REVV_BE(v1 + s1)); - if (inlen >= 48) { - STORE(op + 8, LOAD(ip + 8) ^ REVV_BE(v2 + s2)); - buf[3] = REVV_BE(v3 + s3); - } else { - buf[2] = REVV_BE(v2 + s2); - } - } else { - buf[1] = REVV_BE(v1 + s1); - } - } else { - buf[0] = REVV_BE(v0 + s0); - } - - for (i = inlen & ~15; i < inlen; i++) { - ((char *)op)[i] = ((char *)ip)[i] ^ ((char *)buf)[i]; - } - } -} |