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37 lines
731 B
C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "gcrypt.h"
#include <inttypes.h>
#ifndef mycryptwrapper_
#define mycryptwrapper_
#define NEED_LIBGCRYPT_VERSION "1.8.5" //should be 1.8.5 but my libgcrypt as mismatched versions :(
#define algo GCRY_MD_SHA256
#define cipher GCRY_CIPHER_DES
int HASH_SIZE;
/**
* initializes gcrypt
*/
void mycryptwrapper_init();
/**
* prints binary data into HEX format. Nice for debugging hash calculations
*/
void mycryptwrapper_print();
/**
* checks if sha256 at the end of file matches the front
* @param fptr file pointer must be opned in rb mode
* @return 0 if true, else 1 , and 2 for errors
*/
int check_sha256_tag(uint8_t * ptr, size_t file_len);
#endif