mirror of
https://github.com/henrydcase/pqc.git
synced 2024-11-23 16:08:59 +00:00
50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
#include "api.h"
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#include "cbd.h"
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#include "fips202.h"
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#include "pack_unpack.h"
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#include "poly.h"
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#include "poly_mul.h"
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#include <stddef.h>
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void PQCLEAN_SABER_CLEAN_MatrixVectorMul(uint16_t res[SABER_L][SABER_N], const uint16_t A[SABER_L][SABER_L][SABER_N], const uint16_t s[SABER_L][SABER_N], int16_t transpose) {
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size_t i, j;
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for (i = 0; i < SABER_L; i++) {
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for (j = 0; j < SABER_L; j++) {
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if (transpose == 1) {
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PQCLEAN_SABER_CLEAN_poly_mul_acc(res[i], A[j][i], s[j]);
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} else {
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PQCLEAN_SABER_CLEAN_poly_mul_acc(res[i], A[i][j], s[j]);
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}
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}
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}
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}
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void PQCLEAN_SABER_CLEAN_InnerProd(uint16_t res[SABER_N], const uint16_t b[SABER_L][SABER_N], const uint16_t s[SABER_L][SABER_N]) {
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size_t j;
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for (j = 0; j < SABER_L; j++) {
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PQCLEAN_SABER_CLEAN_poly_mul_acc(res, b[j], s[j]);
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}
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}
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void PQCLEAN_SABER_CLEAN_GenMatrix(uint16_t A[SABER_L][SABER_L][SABER_N], const uint8_t seed[SABER_SEEDBYTES]) {
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uint8_t buf[SABER_L * SABER_POLYVECBYTES];
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size_t i;
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shake128(buf, sizeof(buf), seed, SABER_SEEDBYTES);
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for (i = 0; i < SABER_L; i++) {
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PQCLEAN_SABER_CLEAN_BS2POLVECq(A[i], buf + i * SABER_POLYVECBYTES);
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}
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}
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void PQCLEAN_SABER_CLEAN_GenSecret(uint16_t s[SABER_L][SABER_N], const uint8_t seed[SABER_NOISE_SEEDBYTES]) {
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uint8_t buf[SABER_L * SABER_POLYCOINBYTES];
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size_t i;
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shake128(buf, sizeof(buf), seed, SABER_NOISE_SEEDBYTES);
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for (i = 0; i < SABER_L; i++) {
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PQCLEAN_SABER_CLEAN_cbd(s[i], buf + i * SABER_POLYCOINBYTES);
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}
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}
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