44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
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#include "blas.h"
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#include "gf.h"
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#include <stddef.h>
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void PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_gf256v_predicated_add(uint8_t *accu_b, uint8_t predicate, const uint8_t *a, size_t _num_byte) {
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uint8_t pr_u8 = (uint8_t) ((uint8_t) 0 - predicate);
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for (size_t i = 0; i < _num_byte; i++) {
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accu_b[i] ^= (a[i] & pr_u8);
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}
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}
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void PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_gf256v_add(uint8_t *accu_b, const uint8_t *a, size_t _num_byte) {
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for (size_t i = 0; i < _num_byte; i++) {
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accu_b[i] ^= a[i];
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}
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}
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void PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_gf16v_mul_scalar(uint8_t *a, uint8_t gf16_b, size_t _num_byte) {
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uint8_t tmp;
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for (size_t i = 0; i < _num_byte; i++) {
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tmp = PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_gf16_mul(a[i] & 0xF, gf16_b);
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tmp |= (uint8_t) (PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_gf16_mul(a[i] >> 4, gf16_b) << 4);
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a[i] = tmp;
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}
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}
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void PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_gf16v_madd(uint8_t *accu_c, const uint8_t *a, uint8_t gf16_b, size_t _num_byte) {
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for (size_t i = 0; i < _num_byte; i++) {
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accu_c[i] ^= PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_gf16_mul(a[i] & 0xF, gf16_b);
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accu_c[i] ^= (uint8_t) (PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_gf16_mul(a[i] >> 4, gf16_b) << 4);
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}
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}
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uint8_t PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_gf16v_dot(const uint8_t *a, const uint8_t *b, size_t _num_byte) {
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uint8_t r = 0;
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for (size_t i = 0; i < _num_byte; i++) {
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r ^= PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_gf16_mul(a[i], b[i]);
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}
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return r;
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}
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