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path: root/core/src/test/java/org/bouncycastle/crypto/test/BlockCipherResetTest.java
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Diffstat (limited to 'core/src/test/java/org/bouncycastle/crypto/test/BlockCipherResetTest.java')
-rw-r--r--core/src/test/java/org/bouncycastle/crypto/test/BlockCipherResetTest.java206
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diff --git a/core/src/test/java/org/bouncycastle/crypto/test/BlockCipherResetTest.java b/core/src/test/java/org/bouncycastle/crypto/test/BlockCipherResetTest.java
deleted file mode 100644
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--- a/core/src/test/java/org/bouncycastle/crypto/test/BlockCipherResetTest.java
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-package org.bouncycastle.crypto.test;
-
-import org.bouncycastle.crypto.BlockCipher;
-import org.bouncycastle.crypto.CipherParameters;
-import org.bouncycastle.crypto.DataLengthException;
-import org.bouncycastle.crypto.InvalidCipherTextException;
-import org.bouncycastle.crypto.engines.AESEngine;
-import org.bouncycastle.crypto.engines.AESFastEngine;
-import org.bouncycastle.crypto.engines.AESLightEngine;
-import org.bouncycastle.crypto.engines.BlowfishEngine;
-import org.bouncycastle.crypto.engines.CAST5Engine;
-import org.bouncycastle.crypto.engines.CAST6Engine;
-import org.bouncycastle.crypto.engines.DESEngine;
-import org.bouncycastle.crypto.engines.DESedeEngine;
-import org.bouncycastle.crypto.engines.NoekeonEngine;
-import org.bouncycastle.crypto.engines.RC6Engine;
-import org.bouncycastle.crypto.engines.SEEDEngine;
-import org.bouncycastle.crypto.engines.SerpentEngine;
-import org.bouncycastle.crypto.engines.TEAEngine;
-import org.bouncycastle.crypto.engines.TwofishEngine;
-import org.bouncycastle.crypto.engines.XTEAEngine;
-import org.bouncycastle.crypto.modes.CBCBlockCipher;
-import org.bouncycastle.crypto.modes.CFBBlockCipher;
-import org.bouncycastle.crypto.modes.GOFBBlockCipher;
-import org.bouncycastle.crypto.modes.OFBBlockCipher;
-import org.bouncycastle.crypto.modes.OpenPGPCFBBlockCipher;
-import org.bouncycastle.crypto.modes.PGPCFBBlockCipher;
-import org.bouncycastle.crypto.modes.SICBlockCipher;
-import org.bouncycastle.crypto.params.KeyParameter;
-import org.bouncycastle.crypto.params.ParametersWithIV;
-import org.bouncycastle.util.Arrays;
-import org.bouncycastle.util.encoders.Hex;
-import org.bouncycastle.util.test.SimpleTest;
-
-/**
- * Test whether block ciphers implement reset contract on init, encrypt/decrypt and reset.
- */
-public class BlockCipherResetTest
- extends SimpleTest
-{
-
- public String getName()
- {
- return "Block Cipher Reset";
- }
-
- public void performTest()
- throws Exception
- {
- // 128 bit block ciphers
- testReset("AESFastEngine", new AESFastEngine(), new AESFastEngine(), new KeyParameter(new byte[16]));
- testReset("AESEngine", new AESEngine(), new AESEngine(), new KeyParameter(new byte[16]));
- testReset("AESLightEngine", new AESLightEngine(), new AESLightEngine(), new KeyParameter(new byte[16]));
- testReset("Twofish", new TwofishEngine(), new TwofishEngine(), new KeyParameter(new byte[16]));
- testReset("NoekeonEngine", new NoekeonEngine(), new NoekeonEngine(), new KeyParameter(new byte[16]));
- testReset("SerpentEngine", new SerpentEngine(), new SerpentEngine(), new KeyParameter(new byte[16]));
- testReset("SEEDEngine", new SEEDEngine(), new SEEDEngine(), new KeyParameter(new byte[16]));
- testReset("CAST6Engine", new CAST6Engine(), new CAST6Engine(), new KeyParameter(new byte[16]));
- testReset("RC6Engine", new RC6Engine(), new RC6Engine(), new KeyParameter(new byte[16]));
-
- // 64 bit block ciphers
- testReset("DESEngine", new DESEngine(), new DESEngine(), new KeyParameter(new byte[8]));
- testReset("BlowfishEngine", new BlowfishEngine(), new BlowfishEngine(), new KeyParameter(new byte[8]));
- testReset("CAST5Engine", new CAST5Engine(), new CAST5Engine(), new KeyParameter(new byte[8]));
- testReset("DESedeEngine", new DESedeEngine(), new DESedeEngine(), new KeyParameter(new byte[24]));
- testReset("TEAEngine", new TEAEngine(), new TEAEngine(), new KeyParameter(new byte[16]));
- testReset("XTEAEngine", new XTEAEngine(), new XTEAEngine(), new KeyParameter(new byte[16]));
-
- // primitive block cipher modes (don't reset on processBlock)
- testModeReset("AES/CBC", new CBCBlockCipher(new AESEngine()), new CBCBlockCipher(new AESEngine()),
- new ParametersWithIV(new KeyParameter(new byte[16]), new byte[16]));
- testModeReset("AES/SIC", new SICBlockCipher(new AESEngine()), new SICBlockCipher(new AESEngine()),
- new ParametersWithIV(new KeyParameter(new byte[16]), new byte[16]));
- testModeReset("AES/CFB", new CFBBlockCipher(new AESEngine(), 128), new CFBBlockCipher(new AESEngine(), 128),
- new ParametersWithIV(new KeyParameter(new byte[16]), new byte[16]));
- testModeReset("AES/OFB", new OFBBlockCipher(new AESEngine(), 128), new OFBBlockCipher(new AESEngine(), 128),
- new ParametersWithIV(new KeyParameter(new byte[16]), new byte[16]));
- testModeReset("AES/GCTR", new GOFBBlockCipher(new DESEngine()), new GOFBBlockCipher(new DESEngine()),
- new ParametersWithIV(new KeyParameter(new byte[8]), new byte[8]));
- testModeReset("AES/OpenPGPCFB", new OpenPGPCFBBlockCipher(new AESEngine()), new OpenPGPCFBBlockCipher(
- new AESEngine()), new KeyParameter(new byte[16]));
- testModeReset("AES/PGPCFB", new PGPCFBBlockCipher(new AESEngine(), false), new PGPCFBBlockCipher(
- new AESEngine(), false), new KeyParameter(new byte[16]));
-
- // PGPCFB with IV is broken (it's also not a PRP, so probably shouldn't be a BlockCipher)
- // testModeReset("AES/PGPCFBwithIV", new PGPCFBBlockCipher(new AESEngine(), true), new
- // PGPCFBBlockCipher(
- // new AESEngine(), true), new ParametersWithIV(new KeyParameter(new byte[16]), new
- // byte[16]));
- // testModeReset("AES/PGPCFBwithIV_NoIV", new PGPCFBBlockCipher(new AESEngine(), true), new
- // PGPCFBBlockCipher(
- // new AESEngine(), true), new KeyParameter(new byte[16]));
-
- }
-
- private void testModeReset(String test, BlockCipher cipher1, BlockCipher cipher2, CipherParameters params)
- throws InvalidCipherTextException
- {
- testReset(test, false, cipher1, cipher2, params);
- }
-
- private void testReset(String test, BlockCipher cipher1, BlockCipher cipher2, CipherParameters params)
- throws InvalidCipherTextException
- {
- testReset(test, true, cipher1, cipher2, params);
- }
-
- private void testReset(String test,
- boolean testCryptReset,
- BlockCipher cipher1,
- BlockCipher cipher2,
- CipherParameters params)
- throws InvalidCipherTextException
- {
- cipher1.init(true, params);
-
- byte[] plaintext = new byte[cipher1.getBlockSize()];
- byte[] ciphertext = new byte[(cipher1.getAlgorithmName().indexOf("PGPCFBwithIV")) > -1 ? 2 * cipher1.getBlockSize() + 2
- : cipher1.getBlockSize()];
-
- // Establish baseline answer
- crypt(cipher1, true, plaintext, ciphertext);
-
- // Test encryption resets
- checkReset(test, testCryptReset, cipher1, params, true, plaintext, ciphertext);
-
- // Test decryption resets with fresh instance
- cipher2.init(false, params);
- checkReset(test, testCryptReset, cipher2, params, false, ciphertext, plaintext);
- }
-
- private void checkReset(String test,
- boolean testCryptReset,
- BlockCipher cipher,
- CipherParameters params,
- boolean encrypt,
- byte[] pretext,
- byte[] posttext)
- throws InvalidCipherTextException
- {
- // Do initial run
- byte[] output = new byte[posttext.length];
- crypt(cipher, encrypt, pretext, output);
-
- // Check encrypt resets cipher
- if (testCryptReset)
- {
- crypt(cipher, encrypt, pretext, output);
- if (!Arrays.areEqual(output, posttext))
- {
- fail(test + (encrypt ? " encrypt" : " decrypt") + " did not reset cipher.");
- }
- }
-
- // Check init resets data
- cipher.processBlock(pretext, 0, output, 0);
- cipher.init(encrypt, params);
-
- try
- {
- crypt(cipher, encrypt, pretext, output);
- }
- catch (DataLengthException e)
- {
- fail(test + " init did not reset data.");
- }
- if (!Arrays.areEqual(output, posttext))
- {
- fail(test + " init did not reset data.", new String(Hex.encode(posttext)), new String(Hex.encode(output)));
- }
-
- // Check reset resets data
- cipher.processBlock(pretext, 0, output, 0);
- cipher.reset();
-
- try
- {
- crypt(cipher, encrypt, pretext, output);
- }
- catch (DataLengthException e)
- {
- fail(test + " reset did not reset data.");
- }
- if (!Arrays.areEqual(output, posttext))
- {
- fail(test + " reset did not reset data.");
- }
- }
-
- private static void crypt(BlockCipher cipher1, boolean encrypt, byte[] plaintext, byte[] output)
- throws InvalidCipherTextException
- {
- cipher1.processBlock(plaintext, 0, output, 0);
- if ((cipher1.getAlgorithmName().indexOf("PGPCFBwithIV") > -1) && !encrypt)
- {
- // Process past IV in first block
- cipher1.processBlock(plaintext, cipher1.getBlockSize(), output, 0);
- }
- }
-
- public static void main(String[] args)
- {
- runTest(new BlockCipherResetTest());
- }
-
-}
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