public DoFinal ( byte output, int outOff ) : int | ||
output | byte | |
outOff | int | |
Résultat | int |
private void RunLongerTestCase(int aesKeySize, int tagLen, byte[] expectedOutput) { KeyParameter key = new KeyParameter(new byte[aesKeySize / 8]); byte[] N = new byte[12]; IAeadBlockCipher c1 = new OcbBlockCipher(new AesFastEngine(), new AesFastEngine()); c1.Init(true, new AeadParameters(key, tagLen, N)); IAeadBlockCipher c2 = new OcbBlockCipher(new AesFastEngine(), new AesFastEngine()); long total = 0; byte[] S = new byte[128]; for (int i = 0; i < 128; ++i) { N[11] = (byte) i; c2.Init(true, new AeadParameters(key, tagLen, N)); total += UpdateCiphers(c1, c2, S, i, true, true); total += UpdateCiphers(c1, c2, S, i, false, true); total += UpdateCiphers(c1, c2, S, i, true, false); } long expectedTotal = 16256 + (48 * tagLen); if (total != expectedTotal) { Fail("test generated the wrong amount of input: " + total); } byte[] output = new byte[c1.GetOutputSize(0)]; c1.DoFinal(output, 0); if (!AreEqual(expectedOutput, output)) { Fail("incorrect encrypt in long-form test"); } }
private void CheckTestCase(OcbBlockCipher encCipher, OcbBlockCipher decCipher, string testName, int macLengthBytes, byte[] P, byte[] C) { byte[] tag = Arrays.Copy(C, C.Length - macLengthBytes, macLengthBytes); { byte[] enc = new byte[encCipher.GetOutputSize(P.Length)]; int len = encCipher.ProcessBytes(P, 0, P.Length, enc, 0); len += encCipher.DoFinal(enc, len); if (enc.Length != len) { Fail("encryption reported incorrect length: " + testName); } if (!AreEqual(C, enc)) { Fail("incorrect encrypt in: " + testName); } if (!AreEqual(tag, encCipher.GetMac())) { Fail("getMac() not the same as the appended tag: " + testName); } } { byte[] dec = new byte[decCipher.GetOutputSize(C.Length)]; int len = decCipher.ProcessBytes(C, 0, C.Length, dec, 0); len += decCipher.DoFinal(dec, len); if (dec.Length != len) { Fail("decryption reported incorrect length: " + testName); } if (!AreEqual(P, dec)) { Fail("incorrect decrypt in: " + testName); } if (!AreEqual(tag, decCipher.GetMac())) { Fail("getMac() not the same as the appended tag: " + testName); } } }