public static void WriteKey(RSAKey key, string fileName)
{
using (StreamWriter streamWriter = new StreamWriter(fileName))
{
streamWriter.Write("{0} {1}", key.data, key.N);
}
}
public static RSAKey ReadKey(string fileName)
{
RSAKey key = new RSAKey();
FileStream fileStream = new FileStream(fileName, FileMode.Open);
string fileContents;
using (StreamReader reader = new StreamReader(fileStream))
{
fileContents = reader.ReadToEnd();
}
fileStream.Close();
Int64[] dataArray = fileContents.Split().Select(x => Int64.Parse(x)).ToArray();
if (dataArray.Length != 2)
{
throw new Exception("Error reading key from file!");
}
key.data = dataArray[0];
key.N = dataArray[1];
return key;
}
/// <summary>
/// Генерирует ключи для шифрования и расшифрования
/// </summary>
public void GenerateKeys()
{
random = new Random((int)DateTime.Now.Ticks % Int32.MaxValue);
simpleList = GenerateSimpleNumbersList(1000);
Int64 P = GenerateRandomNumberInt16();
Int64 Q = P;
while (P == Q)
{
Q = GenerateRandomNumberInt16();
}
Int64 N = P * Q;
Int64 M = (P - 1) * (Q - 1);
Int64 E = 0;
do
{
E = GenerateRandomNumberInt32();
}
while (EuclidsAlgorithm(E, M) != 1);
Int64 D = ExtendedEuclid(E, M);
RSAKey publicKey = new RSAKey();
publicKey.data = E;
publicKey.N = N;
RSAKey privateKey = new RSAKey();
privateKey.data = D;
privateKey.N = N;
KeyFileWriter.WriteKey(publicKey, PUBLIC_KEY_FILE_NAME);
KeyFileWriter.WriteKey(privateKey, PRIVATE_KEY_FILE_NAME);
}