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")))); }