#include <QCoreApplication>
#include <QFile>
#include <QByteArray>
#include <QDebug>
#include "gost/gostapi.h"
int main(int argc, char *argv[])
{
QFile file("/home/user/letter.json");
const bool isFile=file.exsists();
if(isFile)
{
const int fileDescriptor = file.handle();
const size_t fileSize=file.size();
unsigned char res[32];
int gostRes=gost12_hash_file(fileDescriptor, fileSize, res);
QByteArray arr;
for (int i=0; i<(sizeof(res)/sizeof(*res)); ++i)
{
arr.append(res[i]);
}
const QString str=arr.toHex();
qDebug()<< str;
}
return 0;
}