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22 lines
503 B
C
22 lines
503 B
C
#ifndef PQCLEAN_DILITHIUM2_CLEAN_REDUCE_H
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#define PQCLEAN_DILITHIUM2_CLEAN_REDUCE_H
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#include <stdint.h>
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#define MONT 4193792U // 2^32 % Q
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#define QINV 4236238847U // -q^(-1) mod 2^32
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/* a <= Q*2^32 => r < 2*Q */
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uint32_t PQCLEAN_DILITHIUM2_CLEAN_montgomery_reduce(uint64_t a);
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/* r < 2*Q */
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uint32_t PQCLEAN_DILITHIUM2_CLEAN_reduce32(uint32_t a);
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/* a < 2*Q => r < Q */
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uint32_t PQCLEAN_DILITHIUM2_CLEAN_csubq(uint32_t a);
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/* r < Q */
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uint32_t PQCLEAN_DILITHIUM2_CLEAN_freeze(uint32_t a);
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#endif
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