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16 lines
422 B
C
16 lines
422 B
C
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#include "poly.h"
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void PQCLEAN_NTRUHPS4096821_CLEAN_poly_Rq_mul(poly *r, const poly *a, const poly *b) {
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int k, i;
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for (k = 0; k < NTRU_N; k++) {
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r->coeffs[k] = 0;
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for (i = 1; i < NTRU_N - k; i++) {
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r->coeffs[k] += a->coeffs[k + i] * b->coeffs[NTRU_N - i];
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}
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for (i = 0; i < k + 1; i++) {
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r->coeffs[k] += a->coeffs[k - i] * b->coeffs[i];
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}
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}
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}
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