22 lines
453 B
C
22 lines
453 B
C
|
#ifndef REDUCE_H
|
||
|
|
#define REDUCE_H
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
#define MONT 4193792U // 2^32 % Q
|
||
|
|
#define QINV 4236238847U // -q^(-1) mod 2^32
|
||
|
|
|
||
|
|
/* a <= Q*2^32 => r < 2*Q */
|
||
|
|
uint32_t PQCLEAN_DILITHIUM4_CLEAN_montgomery_reduce(uint64_t a);
|
||
|
|
|
||
|
|
/* r < 2*Q */
|
||
|
|
uint32_t PQCLEAN_DILITHIUM4_CLEAN_reduce32(uint32_t a);
|
||
|
|
|
||
|
|
/* a < 2*Q => r < Q */
|
||
|
|
uint32_t PQCLEAN_DILITHIUM4_CLEAN_csubq(uint32_t a);
|
||
|
|
|
||
|
|
/* r < Q */
|
||
|
|
uint32_t PQCLEAN_DILITHIUM4_CLEAN_freeze(uint32_t a);
|
||
|
|
|
||
|
|
#endif
|