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124 lines
7.9 KiB
C
124 lines
7.9 KiB
C
#ifndef HQC_PARAMETERS_H
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#define HQC_PARAMETERS_H
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/**
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* @file parameters.h
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* @brief Parameters of the HQC_KEM IND-CCA2 scheme
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*/
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#include "api.h"
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#include "api.h"
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#include "vector.h"
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#define CEIL_DIVIDE(a, b) (((a)/(b)) + ((a) % (b) == 0 ? 0 : 1)) /*!< Divide a by b and ceil the result*/
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#define BITMASK(a, size) ((1UL << ((a) % (size))) - 1) /*!< Create a mask*/
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/*
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#define PARAM_N Define the parameter n of the scheme
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#define PARAM_N1 Define the parameter n1 of the scheme (length of BCH code)
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#define PARAM_N2 Define the parameter n2 of the scheme (length of the repetition code)
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#define PARAM_N1N2 Define the parameter n1 * n2 of the scheme (length of the tensor code)
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#define PARAM_OMEGA Define the parameter omega of the scheme
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#define PARAM_OMEGA_E Define the parameter omega_e of the scheme
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#define PARAM_OMEGA_R Define the parameter omega_r of the scheme
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#define PARAM_SECURITY Define the security level corresponding to the chosen parameters
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#define PARAM_DFR_EXP Define the decryption failure rate corresponding to the chosen parameters
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#define SECRET_KEY_BYTES Define the size of the secret key in bytes
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#define PUBLIC_KEY_BYTES Define the size of the public key in bytes
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#define SHARED_SECRET_BYTES Define the size of the shared secret in bytes
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#define CIPHERTEXT_BYTES Define the size of the ciphertext in bytes
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#define UTILS_REJECTION_THRESHOLD Define the rejection threshold used to generate given weight vectors (see vector_set_random_fixed_weight function)
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#define VEC_N_SIZE_BYTES Define the size of the array used to store a PARAM_N sized vector in bytes
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#define VEC_K_SIZE_BYTES Define the size of the array used to store a PARAM_K sized vector in bytes
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#define VEC_N1_SIZE_BYTES Define the size of the array used to store a PARAM_N1 sized vector in bytes
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#define VEC_N1N2_SIZE_BYTES Define the size of the array used to store a PARAM_N1N2 sized vector in bytes
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#define VEC_N_SIZE_64 Define the size of the array used to store a PARAM_N sized vector in 64 bits
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#define VEC_K_SIZE_64 Define the size of the array used to store a PARAM_K sized vector in 64 bits
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#define VEC_N1_SIZE_64 Define the size of the array used to store a PARAM_N1 sized vector in 64 bits
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#define VEC_N1N2_SIZE_64 Define the size of the array used to store a PARAM_N1N2 sized vector in 64 bits
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#define PARAM_T Define a threshold for decoding repetition code word (PARAM_T = (PARAM_N2 - 1) / 2)
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#define PARAM_DELTA Define the parameter delta of the scheme (correcting capacity of the BCH code)
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#define PARAM_M Define a positive integer
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#define PARAM_GF_POLY Generator polynomial of galois field GF(2^PARAM_M), represented in hexadecimial form
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#define PARAM_GF_MUL_ORDER Define the size of the multiplicative group of GF(2^PARAM_M), i.e 2^PARAM_M -1
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#define PARAM_K Define the size of the information bits of the BCH code
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#define PARAM_G Define the size of the generator polynomial of BCH code
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#define PARAM_FFT The additive FFT takes a 2^PARAM_FFT polynomial as input
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We use the FFT to compute the roots of sigma, whose degree if PARAM_DELTA=60
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The smallest power of 2 greater than 60+1 is 64=2^6
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#define PARAM_FFT_T The additive FFT transpose computes a (2^PARAM_FFT_T)-sized syndrome vector
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We want to compute 2*PARAM_DELTA=120 syndromes
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The smallest power of 2 greater than 120 is 2^7
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#define PARAM_BCH_POLY Generator polynomial of the BCH code
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#define RED_MASK A mask fot the higher bits of a vector
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#define SHA512_BYTES Define the size of SHA512 output in bytes
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#define SEED_BYTES Define the size of the seed in bytes
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#define SEEDEXPANDER_MAX_LENGTH Define the seed expander max length
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*/
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#define PARAM_N 23869
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#define PARAM_N1 766
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#define PARAM_N2 31
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#define PARAM_N1N2 23746
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#define PARAM_OMEGA 67
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#define PARAM_OMEGA_E 77
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#define PARAM_OMEGA_R 77
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#define PARAM_SECURITY 128
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#define PARAM_DFR_EXP 128
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#define SECRET_KEY_BYTES PQCLEAN_HQC128_CLEAN_CRYPTO_SECRETKEYBYTES
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#define PUBLIC_KEY_BYTES PQCLEAN_HQC128_CLEAN_CRYPTO_PUBLICKEYBYTES
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#define SHARED_SECRET_BYTES PQCLEAN_HQC128_CLEAN_CRYPTO_BYTES
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#define CIPHERTEXT_BYTES PQCLEAN_HQC128_CLEAN_CRYPTO_CIPHERTEXTBYTES
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#define UTILS_REJECTION_THRESHOLD 16756038
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#define VEC_N_SIZE_BYTES CEIL_DIVIDE(PARAM_N, 8)
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#define VEC_K_SIZE_BYTES CEIL_DIVIDE(PARAM_K, 8)
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#define VEC_N1_SIZE_BYTES CEIL_DIVIDE(PARAM_N1, 8)
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#define VEC_N1N2_SIZE_BYTES CEIL_DIVIDE(PARAM_N1N2, 8)
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#define VEC_N_SIZE_64 CEIL_DIVIDE(PARAM_N, 64)
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#define VEC_K_SIZE_64 CEIL_DIVIDE(PARAM_K, 64)
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#define VEC_N1_SIZE_64 CEIL_DIVIDE(PARAM_N1, 64)
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#define VEC_N1N2_SIZE_64 CEIL_DIVIDE(PARAM_N1N2, 64)
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#define PARAM_T 15
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#define PARAM_DELTA 57
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#define PARAM_M 10
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#define PARAM_GF_POLY 0x409
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#define PARAM_GF_MUL_ORDER 1023
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#define PARAM_K 256
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#define PARAM_G 511
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#define PARAM_FFT 6
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#define PARAM_FFT_T 7
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#define PARAM_BCH_POLY { \
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1,1,0,0,0,0,1,0,0,1,1,0,1,1,0,1,0,1,1,0,0,1,0,0,1,1,1,1,1,1,0,0,1,1,0,1,1, \
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1,1,0,1,1,1,1,0,1,0,0,0,1,0,0,1,1,1,0,1,1,0,1,0,1,1,1,0,1,0,1,0,0,1,0,0,0, \
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0,1,1,1,1,0,1,1,1,1,1,0,0,0,0,1,0,0,1,0,0,1,1,1,0,0,0,1,1,0,0,1,0,1,0,0,0, \
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1,0,0,0,0,1,0,0,0,1,0,1,1,0,0,0,0,1,1,0,0,1,1,0,1,0,1,0,1,0,1,1,1,1,0,1,0, \
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0,1,1,0,1,0,1,1,0,0,1,1,0,1,1,1,1,1,0,1,0,1,1,1,0,1,0,0,0,1,1,0,1,1,1,1,0, \
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1,1,1,1,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,1,1,1,1,0,0,1,1,0,1,0,0,0,0,1,0, \
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0,1,0,0,1,0,1,0,0,1,1,0,1,0,1,1,1,1,1,0,1,1,0,1,0,1,1,1,1,1,1,0,0,0,1,0,1, \
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1,1,1,1,1,0,1,0,1,0,1,1,0,0,0,1,1,0,0,1,1,0,1,1,1,1,1,1,1,0,0,0,1,1,1,1,0, \
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1,0,0,0,1,0,0,1,1,0,1,1,0,0,1,0,1,1,0,1,0,1,0,1,1,0,0,0,0,0,1,1,1,1,1,1,1, \
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1,1,1,0,1,1,0,1,0,1,1,1,1,1,1,1,0,1,1,0,1,1,0,0,0,1,0,0,1,1,1,1,1,0,1,0,1, \
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0,0,0,0,1,0,1,1,1,1,0,1,0,0,0,0,0,1,0,0,1,0,1,1,1,1,1,0,0,0,0,0,0,1,1,1,1, \
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1,0,1,0,0,1,0,0,1,1,0,1,0,0,0,0,0,0,0,0,1,1,0,0,0,1,1,1,0,0,1,1,0,0,0,1,1, \
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0,1,0,0,1,0,0,0,1,0,1,0,1,0,0,0,1,1,1,1,1,0,0,0,1,0,0,1,1,0,1,1,0,0,1,0,1, \
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1,0,1,1,1,0,0,0,0,1,1,0,1,1,1,0,1,0,0,0,0,1,0,0,0,1,0,0,1,1 \
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};
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#define RED_MASK 0x1fffffffffffffffUL
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#define SHA512_BYTES 64
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#define SEED_BYTES 40
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#define SEEDEXPANDER_MAX_LENGTH 4294967295
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#endif
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