private static void Test(SnuffleCryptoBase crypto, string i1, string o1, string i2, string o2)
{
Assert.AreEqual(@"XSalsa20", crypto.Name);
Assert.AreEqual(24, crypto.IvSize);
Span <byte> h1 = i1.FromHex();
Span <byte> g1 = o1.FromHex();
Span <byte> h2 = i2.FromHex();
Span <byte> g2 = o2.FromHex();
Span <byte> x1 = stackalloc byte[h1.Length];
Span <byte> x2 = stackalloc byte[h2.Length];
crypto.Update(h1, x1);
Assert.IsTrue(x1.SequenceEqual(g1));
crypto.Update(h2, x2);
Assert.IsTrue(x2.SequenceEqual(g2));
crypto.Reset();
crypto.Update(g1, x1);
Assert.IsTrue(x1.SequenceEqual(h1));
crypto.Update(g2, x2);
Assert.IsTrue(x2.SequenceEqual(h2));
crypto.Dispose();
}
private static void TestCounter1(SnuffleCryptoBase crypto, string hex, string hex2)
{
Assert.AreEqual(@"XChaCha20", crypto.Name);
Assert.AreEqual(24, crypto.IvSize);
Span <byte> h1 = hex.FromHex();
Span <byte> h2 = hex2.FromHex();
Span <byte> i1 = stackalloc byte[368];
Span <byte> o1 = stackalloc byte[i1.Length];
h1.CopyTo(i1[64..]);
private static void Test(SnuffleCryptoBase crypto, string hex0, string hex1, string hex2, string hex3)
{
Assert.AreEqual(@"Salsa20", crypto.Name);
Assert.AreEqual(8, crypto.IvSize);
Span <byte> h0 = hex0.FromHex();
Span <byte> h1 = hex1.FromHex();
Span <byte> h2 = hex2.FromHex();
Span <byte> h3 = hex3.FromHex();
Span <byte> i = stackalloc byte[512];
Span <byte> o = stackalloc byte[512];
crypto.Update(i[..63], o); // 0 - 62
private static void TestCounter0(SnuffleCryptoBase crypto, string hex, string hex2)
{
Assert.AreEqual(@"XChaCha20", crypto.Name);
Assert.AreEqual(24, crypto.IvSize);
Span <byte> h1 = hex.FromHex();
Span <byte> h2 = hex2.FromHex();
Span <byte> o1 = stackalloc byte[h1.Length];
crypto.Update(h1, o1);
Assert.IsTrue(o1.SequenceEqual(h2));
crypto.Reset();
crypto.Update(h1, o1);
Assert.IsTrue(o1.SequenceEqual(h2));
crypto.Dispose();
}
private static void Test(SnuffleCryptoBase crypto, string hex0, string hex1, string hex2, string hex3)
{
Assert.AreEqual(@"Salsa20", crypto.Name);
Assert.AreEqual(8, crypto.IvSize);
Span <byte> h0 = hex0.FromHex();
Span <byte> h1 = hex1.FromHex();
Span <byte> h2 = hex2.FromHex();
Span <byte> h3 = hex3.FromHex();
Span <byte> i = stackalloc byte[512];
Span <byte> o = stackalloc byte[512];
crypto.Update(i.Slice(0, 63), o); // 0 - 62
Assert.IsTrue(o.Slice(0, 63).SequenceEqual(h0.Slice(0, 63)));
crypto.Update(i.Slice(0, 63), o); // 63 - 125
Assert.AreEqual(h0[63], o[0]);
// 126 - 65456
for (var j = 0; j < 1037; j++)
{
crypto.Update(i.Slice(0, 63), o);
}
crypto.Update(i.Slice(0, 63), o); // 65457 - 65519
Assert.IsTrue(o.Slice(15, 63 - 15).SequenceEqual(h1.Slice(0, 48)));
crypto.Update(i.Slice(0, 63), o); // 65520 - 65582
Assert.IsTrue(o.Slice(0, 16).SequenceEqual(h1.Slice(48)));
Assert.IsTrue(o.Slice(16, 47).SequenceEqual(h2.Slice(0, 47)));
crypto.Update(i.Slice(0, 64), o); // 65583 - 65646
Assert.IsTrue(o.Slice(0, 17).SequenceEqual(h2.Slice(47)));
// 65647 - 130990
for (var j = 0; j < 1021; j++)
{
crypto.Update(i.Slice(0, 64), o);
}
crypto.Update(i.Slice(0, 64), o); // 130991 - 131054
Assert.IsTrue(o.Slice(17, 64 - 17).SequenceEqual(h3.Slice(0, 47)));
crypto.Update(i.Slice(0, 64), o); // 131055 - 131118
Assert.IsTrue(o.Slice(0, 17).SequenceEqual(h3.Slice(47)));
crypto.Reset();
crypto.Update(i.Slice(0, 128), o); // 0 - 127
Assert.IsTrue(o.Slice(0, 64).SequenceEqual(h0));
crypto.Update(i.Slice(0, 64), o); // 128 - 191
// 192 - 65471
for (var j = 0; j < 510; j++)
{
crypto.Update(i.Slice(0, 128), o);
}
crypto.Update(i.Slice(0, 128), o); // 65472 - 65599
Assert.IsTrue(o.Slice(0, 64).SequenceEqual(h1));
Assert.IsTrue(o.Slice(64, 64).SequenceEqual(h2));
// 65600 - 130879
for (var j = 0; j < 255; j++)
{
crypto.Update(i.Slice(0, 256), o);
}
crypto.Update(i.Slice(0, 256), o); // 130880 - 131135
Assert.IsTrue(o.Slice(128, 64).SequenceEqual(h3));
crypto.Reset();
crypto.Update(i.Slice(0, 512), o); // 0 - 511
Assert.IsTrue(o.Slice(0, 64).SequenceEqual(h0));
// 512 - 65535
for (var j = 0; j < 127; j++)
{
crypto.Update(i.Slice(0, 512), o);
}
Assert.IsTrue(o.Slice(448, 64).SequenceEqual(h1));
crypto.Update(i.Slice(0, 512), o); // 65536 - 66047
Assert.IsTrue(o.Slice(0, 64).SequenceEqual(h2));
// 66048 - 131071
for (var j = 0; j < 127; j++)
{
crypto.Update(i.Slice(0, 512), o);
}
Assert.IsTrue(o.Slice(448, 64).SequenceEqual(h3));
crypto.Reset();
crypto.Update(i.Slice(0, 64), o); // 0 - 63
Assert.IsTrue(o.Slice(0, 64).SequenceEqual(h0));
for (var j = 0; j < 1023; j++)
{
crypto.Update(i.Slice(0, 64), o);
}
Assert.IsTrue(o.Slice(0, 64).SequenceEqual(h1));
crypto.Update(i.Slice(0, 64), o);
Assert.IsTrue(o.Slice(0, 64).SequenceEqual(h2));
for (var j = 0; j < 1023; j++)
{
crypto.Update(i.Slice(0, 64), o);
}
Assert.IsTrue(o.Slice(0, 64).SequenceEqual(h3));
crypto.Dispose();
}
