private void AssertEncrypt(JArray jarray)
{
foreach (var token in jarray)
{
var jobj = (JObject)token;
var vecK = _hex.DecodeData(jobj.GetValue("k").ToString());
var vecNonce = _hex.DecodeData(jobj.GetValue("nonce").ToString());
var data = new List <byte[]>();
var jdata = (JArray)jobj.GetValue("data");
foreach (var v in jdata)
{
var d = _hex.DecodeData(v.ToString());
data.Add(d);
}
var vecM = _hex.DecodeData(jobj.GetValue("m").ToString());
var vecC = _hex.DecodeData(jobj.GetValue("c").ToString());
var vecTau = jobj.Value <int>("tau");
var dst = Span <byte> .Empty;
var c = AEZ.Encrypt(vecK, vecNonce, data.ToArray(), vecTau, vecM, dst);
Assert.Equal(_hex.EncodeData(vecC), _hex.EncodeData(c));
var m = AEZ.Decrypt(vecK, vecNonce, data.ToArray(), vecTau, vecC, dst);
Assert.Equal(_hex.EncodeData(vecM), _hex.EncodeData(m));
}
}
public void TestExtract()
{
var extractVectors = (ReadJson("extract.json"));
Assert.NotEmpty(extractVectors);
foreach (var token in extractVectors)
{
var a = ((JObject)token).GetValue("a").ToString();
var extractedKey = new byte[ExtractedKeySize];
var vecA = _hex.DecodeData(a);
var b = ((JObject)token).GetValue("b").ToString();
var vecB = _hex.DecodeData(b);
AEZ.Extract(vecA, extractedKey);
Assert.Equal(_hex.EncodeData(vecB), _hex.EncodeData(extractedKey));
}
}
public void TestInvalidEncoding()
{
// testcase found in aezeed.
var salt = new byte[] { 0, 0, 0, 1, 98 };
var ad = new byte[] { 0, 0, 0, 0, 1, 98 };
var cipherText = new byte[]
{
159,
217,
93,
187,
7,
127,
101,
132,
202,
38,
118,
248,
146,
251,
87,
3,
48,
10,
44,
82,
129,
249,
179,
};
var pass = Encoding.UTF8.GetBytes("test");
var wrongPass = Encoding.UTF8.GetBytes("kek");
var scryptKey =
// b301317b8a1f874e2d2ad563ade52a268d0c4b7fec528110158bdcab94704d26
NBitcoin.Crypto.SCrypt.ComputeDerivedKey(pass, salt, 16, 8, 1, null, 32);
var wrongScryptKey =
// 4d0d138242993176ab9ccc56463773f265168f21f21a6f6146622fa8c06bc034
NBitcoin.Crypto.SCrypt.ComputeDerivedKey(wrongPass, salt, 16, 8, 1, null, 32);
Assert.Equal(0, AEZ.Decrypt(scryptKey, ReadOnlySpan <byte> .Empty, new [] { ad }, 4, cipherText, Span <byte> .Empty)[0]);
Assert.Throws <CryptographicException>(() => AEZ.Decrypt(wrongScryptKey, ReadOnlySpan <byte> .Empty, new [] { ad }, 4, cipherText, Span <byte> .Empty));
}