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pqcrypto/crypto_kem/ledakemlt52/clean/niederreiter.h
2019-06-10 18:57:26 +02:00

29 lines
1.0 KiB
C

#ifndef NIEDERREITER_H
#define NIEDERREITER_H
#include "gf2x_arith_mod_xPplusOne.h"
#include "qc_ldpc_parameters.h"
#include "rng.h"
typedef struct {
/* raw entropy extracted from TRNG, will be deterministically expanded into
* H and Q during decryption */
unsigned char prng_seed[TRNG_BYTE_LENGTH];
int8_t rejections;
} privateKeyNiederreiter_t;
typedef struct {
DIGIT Mtr[(N0 - 1)*NUM_DIGITS_GF2X_ELEMENT];
// Dense representation of the matrix M=Ln0*L,
// An array including a sequence of (N0-1) gf2x elements;
// each gf2x element is stored as a binary polynomial(mod x^P+1)
// with P coefficients.
} publicKeyNiederreiter_t;
void PQCLEAN_LEDAKEMLT52_CLEAN_niederreiter_keygen(publicKeyNiederreiter_t *pk, privateKeyNiederreiter_t *sk, AES_XOF_struct *keys_expander);
void PQCLEAN_LEDAKEMLT52_CLEAN_niederreiter_encrypt(DIGIT syndrome[], const publicKeyNiederreiter_t *pk, const DIGIT *err);
int PQCLEAN_LEDAKEMLT52_CLEAN_niederreiter_decrypt(DIGIT *err, const privateKeyNiederreiter_t *sk, const DIGIT *syndrome);
#endif