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41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
#ifndef NIEDERREITER_H
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#define NIEDERREITER_H
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#include "qc_ldpc_parameters.h"
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#include "gf2x_limbs.h"
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#include "gf2x_arith_mod_xPplusOne.h"
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#include "rng.h"
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typedef struct {
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/* raw entropy extracted from TRNG, will be deterministically expanded into
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* H and Q during decryption */
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unsigned char prng_seed[TRNG_BYTE_LENGTH];
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int8_t rejections;
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} privateKeyNiederreiter_t;
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typedef struct {
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DIGIT Mtr[(N0 - 1)*NUM_DIGITS_GF2X_ELEMENT];
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// Dense representation of the matrix M=Ln0*L,
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// An array including a sequence of (N0-1) gf2x elements;
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// each gf2x element is stored as a binary polynomial(mod x^P+1)
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// with P coefficients.
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} publicKeyNiederreiter_t;
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void PQCLEAN_LEDAKEMLT12_CLEAN_niederreiter_keygen(publicKeyNiederreiter_t *const pk,
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privateKeyNiederreiter_t *const sk,
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AES_XOF_struct *keys_expander);
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void PQCLEAN_LEDAKEMLT12_CLEAN_niederreiter_encrypt(DIGIT syndrome[],
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const publicKeyNiederreiter_t *const pk,
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const DIGIT err[]);
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// return 1 if everything is ok
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int PQCLEAN_LEDAKEMLT12_CLEAN_niederreiter_decrypt(DIGIT err[],
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const privateKeyNiederreiter_t *const sk,
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const DIGIT syndrome[]);
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#endif
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