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create api.h

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Leon 2019-05-19 19:41:03 +02:00
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crypto_kem/ledakemlt12/clean/api.h
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/** #ifndef PQCLEAN_LEDAKEMLT12_CLEAN_API_H
* #define PQCLEAN_LEDAKEMLT12_CLEAN_API_H
* <api.h>
*
* @version 2.0 (March 2019)
*
* Reference ISO-C11 Implementation of the LEDAcrypt KEM-LT cipher using GCC built-ins.
*
* In alphabetical order:
*
* @author Marco Baldi <m.baldi@univpm.it>
* @author Alessandro Barenghi <alessandro.barenghi@polimi.it>
* @author Franco Chiaraluce <f.chiaraluce@univpm.it>
* @author Gerardo Pelosi <gerardo.pelosi@polimi.it>
* @author Paolo Santini <p.santini@pm.univpm.it>
*
* This code is hereby placed in the public domain.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
**/
#pragma once #define PQCLEAN_LEDAKEMLT12_CLEAN_CRYPTO_SECRETKEYBYTES 25
#define PQCLEAN_LEDAKEMLT12_CLEAN_CRYPTO_PUBLICKEYBYTES 6520
#define PQCLEAN_LEDAKEMLT12_CLEAN_CRYPTO_CIPHERTEXTBYTES 6520
#define PQCLEAN_LEDAKEMLT12_CLEAN_CRYPTO_BYTES 32
#include "qc_ldpc_parameters.h" #define PQCLEAN_LEDAKEMLT12_CLEAN_CRYPTO_ALGNAME "LEDAKEMLT12"
#include "gf2x_limbs.h"
#include "gf2x_arith_mod_xPplusOne.h"
#define CRYPTO_ALGNAME "LEDA" int PQCLEAN_LEDAKEMLT12_CLEAN_crypto_kem_keypair(unsigned char *pk, unsigned char *sk);
/* required bytes of input randomness */ int PQCLEAN_LEDAKEMLT12_CLEAN_crypto_kem_enc(unsigned char *ct, unsigned char *ss, const unsigned char *pk);
#define CRYPTO_RANDOMBYTES TRNG_BYTE_LENGTH
/* size in bytes of the secret key */ int PQCLEAN_LEDAKEMLT12_CLEAN_crypto_kem_dec(unsigned char *ss, const unsigned char *ct, const unsigned char *sk);
#define CRYPTO_SECRETKEYBYTES TRNG_BYTE_LENGTH+1
/* size in bytes of the public key */
#define CRYPTO_PUBLICKEYBYTES ((N0-1)*NUM_DIGITS_GF2X_ELEMENT*DIGIT_SIZE_B)
/* size in bytes of the shared secret */
#define CRYPTO_BYTES HASH_BYTE_LENGTH
/*size in bytes of the ciphertext*/
#define CRYPTO_CIPHERTEXTBYTES (NUM_DIGITS_GF2X_ELEMENT*DIGIT_SIZE_B)
/* Your functions must return 0 to indicate success, -1 to indicate an error
* condition */
/* Generates a keypair - pk is the public key and sk is the secret key. */
int crypto_kem_keypair( unsigned char *pk,
unsigned char *sk );
/* Encrypt - pk is the public key, ct is a key encapsulation message
(ciphertext), ss is the shared secret.*/
int crypto_kem_enc( unsigned char *ct,
unsigned char *ss,
const unsigned char *pk );
/* Decrypt - ct is a key encapsulation message (ciphertext), sk is the private #endif
key, ss is the shared secret */
int crypto_kem_dec( unsigned char *ss,
const unsigned char *ct,
const unsigned char *sk );