public void MultiBlock()
{
var key = new byte[32];
var iv = new byte[16];
var encrypt = new CtrStreamCipher(new AesEngine());
var p = new ParametersWithIV(new KeyParameter(key), iv);
encrypt.Init(true, p);
var plain = Encoding.UTF8.GetBytes("this is some text that spans multiple blocks");
var expected1 = "a8fda90b8229faa9de27cf71b2f045ff272ffe93a63116cad902da82e4a606e7bace305128400902682daea0".ToHexBuffer();
var expected2 = "ce9bf46b520970ea44c94711f1d690f6012641e6bc3e915b3d2b8f0861852c483365469b2261a98deed81443".ToHexBuffer();
var actual = new byte[plain.Length];
encrypt.ProcessBytes(plain, 0, plain.Length, actual, 0);
CollectionAssert.AreEqual(expected1, actual);
encrypt.ProcessBytes(plain, 0, plain.Length, actual, 0);
CollectionAssert.AreEqual(expected2, actual);
}
public void SingleBlock()
{
var key = new byte[32];
var iv = new byte[16];
var encrypt = new CtrStreamCipher(new AesEngine());
var p = new ParametersWithIV(new KeyParameter(key), iv);
encrypt.Init(true, p);
var plain = Encoding.UTF8.GetBytes("1234567890123456");
var expected1 = "eda7f34c9776beb194789326a1b015b1".ToHexBuffer();
var expected2 = "623db9cff2730181905385c3f7ff46bd".ToHexBuffer();
var actual = new byte[plain.Length];
encrypt.ProcessBytes(plain, 0, plain.Length, actual, 0);
CollectionAssert.AreEqual(expected1, actual);
encrypt.ProcessBytes(plain, 0, plain.Length, actual, 0);
CollectionAssert.AreEqual(expected2, actual);
}
public void SameAsNodeJS()
{
var key = new byte[32];
var iv = new byte[16];
var encrypt = new CtrStreamCipher(new AesEngine());
var p = new ParametersWithIV(new KeyParameter(key), iv);
encrypt.Init(true, p);
var plain = new byte[] { (byte)'a' };
var actual = new byte[plain.Length];
var expected = new byte[] { 0xbd };
encrypt.ProcessBytes(plain, 0, plain.Length, actual, 0);
Assert.AreEqual(expected[0], actual[0]);
expected = new byte[] { 0xf4 };
encrypt.ProcessBytes(plain, 0, plain.Length, actual, 0);
Assert.AreEqual(expected[0], actual[0]);
}