public void Challenge03_SingleByteBreakXOR()
{
var bytes = Hex.ToBytes("1b37373331363f78151b7f2b783431333d78397828372d363c78373e783a393b3736");
var bestMatch = Xor.XorBestMatch(bytes).First();
var plainText = Encoding.UTF8.GetString(Xor.ApplyRepeating(bytes, new [] { bestMatch.key }));
Assert.Equal("Cooking MC's like a pound of bacon", plainText);
}
public void Challenge04_FindXORInFile()
{
var lines = File.ReadAllLines("4.txt");
var candidates = new List <(string line, byte key, double score)>(lines.Length);
foreach (var line in lines)
{
var c = Xor.XorBestMatch(Hex.ToBytes(line)).First();
candidates.Add((line, c.key, c.score));
}
var candidate = candidates.OrderByDescending(x => x.score).First();
var plainText = Encoding.UTF8.GetString(Xor.ApplyRepeating(Hex.ToBytes(candidate.line), new [] { candidate.key }));
Assert.Equal("Now that the party is jumping\n", plainText);
}
public void Challenge05_RepeatingXOR()
{
Assert.Equal("0b3637272a2b2e63622c2e69692a23693a2a3c6324202d623d63343c2a26226324272765272a282b2f20430a652e2c652a3124333a653e2b2027630c692b20283165286326302e27282f",
Hex.ToString(Xor.ApplyRepeating(Encoding.UTF8.GetBytes("Burning 'em, if you ain't quick and nimble\nI go crazy when I hear a cymbal"), Encoding.UTF8.GetBytes("ICE"))));
}
