int main(int argc, char **argv)
{
int ret = EXIT_SUCCESS;
if (argc != 2 && argc != 3) {
printf("Uso: %s numero_de_bytes\n", argv[0]);
}
else {
if ((strcmp(argv[1], "--help")) == 0) {
printf("RandomKey %s\n", VERSION);
printf("Uso: %s numero_de_bytes\n", argv[0]);
printf("Uso: %s numero_de_bytes archivo.txt\n", argv[0]);
printf("Contacto: [email protected]\n");
}
else {
if (checkarg(argv[1]) < 0) {
printf("%s error: %s no es valido\n", argv[0], argv[1]);
ret = EXIT_FAILURE;
}
else {
if (argv[2]) {
ret = filekey(atoi(argv[1]), argv[2]);
}
else {
makekey(atoi(argv[1]));
}
}
}
}
return ret;
}
void RSA::cryptRSA (char* fileMText,char* fileKey,char *fileCrypt)
{
string headCode="1000010010000100";/*head16bit*/
ifstream filetext(fileMText);
ifstream filekey(fileKey);
ofstream filecrypt(fileCrypt);
if(!filetext){
cout<<"Fail!Filetext isn't exist";
return;
}
if(!filekey){
cout<<"Fail!Filekey isn't exist";
return;
}
/*read key from fileKey*/
string TEXT;
ZZZ n,e;
filekey>>TEXT;
n=TEXT;
filekey>>TEXT;
e=TEXT;
/*linked head16bit with bit random + KEY{128,192,256}*/
TEXT=headCode;
ZZ numbersite;
RandomBits(numbersite,(2032-KEY));
stringstream buffer;
buffer<<numbersite;
ZZZ code;
code=buffer.str();
int strlen=code.get_str(2).length();
for(;strlen<2032-KEY;strlen++)TEXT+='1';
TEXT+=code.get_str(2);
filetext>>headCode;
code=headCode;
TEXT+=code.get_str(2);
/*********************/
/*C=M^e mod n*/
code.set_str(TEXT,2);
mpz_powm(code.get_mpz_t(),code.get_mpz_t(),e.get_mpz_t(),n.get_mpz_t());
filecrypt<<convert_base64(code.get_str(2))<<endl;
filecrypt.close();
filetext.close();
filekey.close();
}
