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https://github.com/henrydcase/pqc.git
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b3f9d4f8d6
* Add McEliece reference implementations * Add Vec implementations of McEliece * Add sse implementations * Add AVX2 implementations * Get rid of stuff not supported by Mac ABI * restrict to two cores * Ditch .data files * Remove .hidden from all .S files * speed up duplicate consistency tests by batching * make cpuinfo more robust * Hope to stabilize macos cpuinfo without ccache * Revert "Hope to stabilize macos cpuinfo without ccache" This reverts commit 6129c3cabe1abbc8b956bc87e902a698e32bf322. * Just hardcode what's available at travis * Fixed-size types in api.h * namespace all header files in mceliece * Ditch operations.h * Get rid of static inline functions * fixup! Ditch operations.h
144 lines
3.8 KiB
C
144 lines
3.8 KiB
C
/*
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This file is for functions related to 128-bit vectors
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including functions for bitsliced field operations
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*/
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#include "vec128.h"
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#include "params.h"
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vec128 PQCLEAN_MCELIECE348864_SSE_vec128_set1_16b(uint16_t a) {
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return _mm_set1_epi16(a);
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}
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int PQCLEAN_MCELIECE348864_SSE_vec128_testz(vec128 a) {
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return _mm_testz_si128(a, a);
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}
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vec128 PQCLEAN_MCELIECE348864_SSE_vec128_setzero(void) {
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return _mm_setzero_si128();
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}
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vec128 PQCLEAN_MCELIECE348864_SSE_vec128_and(vec128 a, vec128 b) {
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return _mm_and_si128(a, b);
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}
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vec128 PQCLEAN_MCELIECE348864_SSE_vec128_xor(vec128 a, vec128 b) {
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return _mm_xor_si128(a, b);
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}
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vec128 PQCLEAN_MCELIECE348864_SSE_vec128_or(vec128 a, vec128 b) {
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return _mm_or_si128(a, b);
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}
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vec128 PQCLEAN_MCELIECE348864_SSE_vec128_sll_2x(vec128 a, int s) {
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return _mm_slli_epi64(a, s);
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}
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vec128 PQCLEAN_MCELIECE348864_SSE_vec128_srl_2x(vec128 a, int s) {
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return _mm_srli_epi64(a, s);
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}
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vec128 PQCLEAN_MCELIECE348864_SSE_vec128_set2x(uint64_t a0, uint64_t a1) {
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return _mm_set_epi64x(a1, a0);
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}
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vec128 PQCLEAN_MCELIECE348864_SSE_vec128_unpack_low(vec128 a, vec128 b) {
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return _mm_unpacklo_epi64(a, b);
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}
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vec128 PQCLEAN_MCELIECE348864_SSE_vec128_unpack_high(vec128 a, vec128 b) {
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return _mm_unpackhi_epi64(a, b);
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}
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vec128 PQCLEAN_MCELIECE348864_SSE_vec128_setbits(uint64_t a) {
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return _mm_set1_epi64x(-a);
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}
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void PQCLEAN_MCELIECE348864_SSE_vec128_copy(vec128 *dest, const vec128 *src) {
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int i;
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for (i = 0; i < GFBITS; i++) {
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dest[i] = src[i];
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}
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}
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void PQCLEAN_MCELIECE348864_SSE_vec128_add(vec128 *c, const vec128 *a, const vec128 *b) {
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int i;
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for (i = 0; i < GFBITS; i++) {
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c[i] = PQCLEAN_MCELIECE348864_SSE_vec128_xor(a[i], b[i]);
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}
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}
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vec128 PQCLEAN_MCELIECE348864_SSE_vec128_or_reduce(const vec128 *a) {
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int i;
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vec128 ret;
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ret = a[0];
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for (i = 1; i < GFBITS; i++) {
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ret = PQCLEAN_MCELIECE348864_SSE_vec128_or(ret, a[i]);
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}
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return ret;
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}
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/* bitsliced field multiplications */
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void PQCLEAN_MCELIECE348864_SSE_vec128_mul(vec128 *h, vec128 *f, const vec128 *g) {
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PQCLEAN_MCELIECE348864_SSE_vec128_mul_asm(h, f, g, 16);
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}
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/* bitsliced field squarings */
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void PQCLEAN_MCELIECE348864_SSE_vec128_sq(vec128 *out, const vec128 *in) {
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int i;
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vec128 result[GFBITS];
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result[0] = in[0] ^ in[6];
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result[1] = in[11];
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result[2] = in[1] ^ in[7];
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result[3] = in[6];
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result[4] = in[2] ^ in[11] ^ in[8];
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result[5] = in[7];
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result[6] = in[3] ^ in[9];
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result[7] = in[8];
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result[8] = in[4] ^ in[10];
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result[9] = in[9];
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result[10] = in[5] ^ in[11];
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result[11] = in[10];
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for (i = 0; i < GFBITS; i++) {
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out[i] = result[i];
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}
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}
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/* bitsliced field inverses */
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void PQCLEAN_MCELIECE348864_SSE_vec128_inv(vec128 *out, const vec128 *in) {
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vec128 tmp_11[ GFBITS ];
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vec128 tmp_1111[ GFBITS ];
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PQCLEAN_MCELIECE348864_SSE_vec128_copy(out, in);
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PQCLEAN_MCELIECE348864_SSE_vec128_sq(out, out);
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PQCLEAN_MCELIECE348864_SSE_vec128_mul(tmp_11, out, in); // 11
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PQCLEAN_MCELIECE348864_SSE_vec128_sq(out, tmp_11);
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PQCLEAN_MCELIECE348864_SSE_vec128_sq(out, out);
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PQCLEAN_MCELIECE348864_SSE_vec128_mul(tmp_1111, out, tmp_11); // 1111
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PQCLEAN_MCELIECE348864_SSE_vec128_sq(out, tmp_1111);
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PQCLEAN_MCELIECE348864_SSE_vec128_sq(out, out);
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PQCLEAN_MCELIECE348864_SSE_vec128_sq(out, out);
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PQCLEAN_MCELIECE348864_SSE_vec128_sq(out, out);
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PQCLEAN_MCELIECE348864_SSE_vec128_mul(out, out, tmp_1111); // 11111111
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PQCLEAN_MCELIECE348864_SSE_vec128_sq(out, out);
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PQCLEAN_MCELIECE348864_SSE_vec128_sq(out, out);
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PQCLEAN_MCELIECE348864_SSE_vec128_mul(out, out, tmp_11); // 1111111111
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PQCLEAN_MCELIECE348864_SSE_vec128_sq(out, out);
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PQCLEAN_MCELIECE348864_SSE_vec128_mul(out, out, in); // 11111111111
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PQCLEAN_MCELIECE348864_SSE_vec128_sq(out, out); // 111111111110
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}
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