public void GetBestGuessSingleByteXorKey_Challenge5Data_CorrectKey()
{
int keyLength = 3;
var hexModulo = keyLength * 2;
var someKey = Challenge5Data.EncryptedHexValue
.Select((c, i) => new { ByteNumber = (i % hexModulo) / 2, c })
.GroupBy(c => c.ByteNumber)
.Select(
g =>
Challenge3.GetBestGuessSingleByteXorKey(new string(g.Select(x => x.c).ToArray())).Key);
var key = Encoding.UTF8.GetString(someKey.ToArray());
Assert.Equal(Challenge5Data.Key, key);
}
public void GetBestGuessSingleByteXorKey_EmptyByteArray_Throws()
{
Assert.Throws <ArgumentOutOfRangeException>(() => Challenge3.GetBestGuessSingleByteXorKey(new byte[0]));
}
public void GetBestGuessSingleByteXorKey_NullByteArray_Throws()
{
Assert.Throws <ArgumentNullException>(() => Challenge3.GetBestGuessSingleByteXorKey((byte[])null));
}
public void GetBestGuessSingleByteXorKey_ValidHex_CorrectKey()
{
var result = Challenge3.GetBestGuessSingleByteXorKey("1b37373331363f78151b7f2b783431333d78397828372d363c78373e783a393b3736");
Assert.Equal(0X58, result.Key);
}