public void PerformanceReverseCFBEncodeDecodeMessageTest()
{
byte[] key = Encoding.Default.GetBytes("12345678901234567890123456789012");
byte[] synchro = Encoding.Default.GetBytes("12345678");
byte[] message = new byte[99999997];
var rand = new Random();
for (int i = 0; i != 99999997; i++)
{
message[i] = Convert.ToByte(rand.Next(9));
}
byte[] encode = new byte[99999997];
byte[] decode = new byte[99999997];
using (var gost = new GOSTManaged())
{
encode = gost.CFBEncode(key, synchro, message);
}
using (var gost = new GOSTManaged())
{
decode = gost.CFBDecode(key, synchro, encode);
}
Assert.AreEqual(Encoding.Default.GetString(message), Encoding.Default.GetString(decode));
}
public void PerformanceSubstitutionEncodeDecodeMessageTest()
{
byte[] key = Encoding.Default.GetBytes("12345678901234567890123456789012");
byte[] message = new byte[100000000];
var rand = new Random();
for (int i = 0; i != 100000000; i++)
{
message[i] = Convert.ToByte(rand.Next(9));
}
byte[] encode = new byte[100000000];
byte[] decode = new byte[100000000];
using (var gost = new GOSTManaged())
{
encode = gost.SubstitutionEncode(key, message);
}
using (var gost = new GOSTManaged())
{
decode = gost.SubstitutionDecode(key, encode);
}
Assert.AreEqual(Encoding.Default.GetString(message), Encoding.Default.GetString(decode));
}
public static string DeCrypt(string str)
{
var bytes = Encoding.Default.GetBytes(str);
var key = Encoding.Default.GetBytes("12345678901234567890123456789012");
var iv = Encoding.Default.GetBytes("12345678");
var gost = new GOSTManaged();
var encoded = gost.XORDecode(key, iv, bytes);
gost.Dispose();
return(Encoding.Default.GetString(encoded));
}
public void GetSubKeysTest()
{
byte[] key = Encoding.Default.GetBytes("12345678901234567890123456789012");
byte[] message = Encoding.Default.GetBytes("message");
var gost = new GOSTManaged();
PrivateObject priv = new PrivateObject(gost);
priv.SetFieldOrProperty("Key", key);
priv.Invoke("GetSubKeys");
List <uint> keys = (List <uint>)priv.GetFieldOrProperty("subKeys");
Assert.AreEqual(keys.Count, 32);
}
public void GOSTManagedTest()
{
byte[] key = Encoding.Default.GetBytes("12345678901234567890123456789012");
byte[] message = Encoding.Default.GetBytes("message");
var gost = new GOSTManaged();
PrivateObject priv = new PrivateObject(gost);
priv.SetFieldOrProperty("Key", key);
priv.SetFieldOrProperty("Message", message);
Assert.AreEqual(Encoding.Default.GetString((byte[])priv.GetFieldOrProperty("Key")), Encoding.Default.GetString(key));
Assert.AreEqual(Encoding.Default.GetString((byte[])priv.GetFieldOrProperty("Message")), Encoding.Default.GetString(message));
}
public void SubstitutionEncodeDecodeMessageTest()
{
byte[] key = Encoding.Default.GetBytes("12345678901234567890123456789012");
byte[] message = Encoding.Default.GetBytes("1234567887654321");
byte[] encode = new byte[16];
byte[] decode = new byte[16];
using (var gost = new GOSTManaged())
{
encode = gost.SubstitutionEncode(key, message);
}
using (var gost = new GOSTManaged())
{
decode = gost.SubstitutionDecode(key, encode);
}
Assert.AreEqual(Encoding.Default.GetString(message), Encoding.Default.GetString(decode));
}
public void CFBEncodeDecodeMessageTest()
{
byte[] key = Encoding.Default.GetBytes("12345678901234567890123456789012");
byte[] synchro = Encoding.Default.GetBytes("12345678");
byte[] message = Encoding.Default.GetBytes("12345678876543");
byte[] encode = new byte[14];
byte[] decode = new byte[14];
using (var gost = new GOSTManaged())
{
encode = gost.CFBEncode(key, synchro, message);
}
using (var gost = new GOSTManaged())
{
decode = gost.CFBDecode(key, synchro, encode);
}
Assert.AreEqual(Encoding.Default.GetString(message), Encoding.Default.GetString(decode));
}
public void MACGeneratorTest()
{
byte[] key = Encoding.Default.GetBytes("12345678901234567890123456789012");
byte[] message1 = Encoding.Default.GetBytes("1234567887654321");
byte[] message2 = Encoding.Default.GetBytes("2234567887654321");
byte[] message3 = Encoding.Default.GetBytes("3456788765432");
byte[] mac1 = new byte[8];
byte[] mac2 = new byte[8];
byte[] mac3 = new byte[8];
using (var gost = new GOSTManaged())
{
mac1 = gost.MACGenerator(key, message1);
mac2 = gost.MACGenerator(key, message2);
mac3 = gost.MACGenerator(key, message3);
}
Assert.AreNotEqual(mac1, mac2);
Assert.AreEqual(mac3.Length, 8);
}