Java AESEngine类代码示例

import org.bouncycastle.crypto.engines.AESEngine; //导入依赖的package包/类
private static byte[] EncryptAes256(byte[] data, byte[] encryptionKey)
{
    try {
        KeyParameter keyParam = new KeyParameter(encryptionKey);
        BlockCipherPadding padding = new PKCS7Padding();
        BufferedBlockCipher cipher = new PaddedBufferedBlockCipher(
                new CBCBlockCipher(new AESEngine()), padding);
        cipher.reset();
        cipher.init(true, keyParam);
        byte[] buffer = new byte[cipher.getOutputSize(data.length)];
        int len = cipher.processBytes(data, 0, data.length, buffer, 0);
        len += cipher.doFinal(buffer, len);
        return Arrays.copyOfRange(buffer, 0, len);
    } catch (Exception e) {
        throw new RuntimeException("decrypt error in SimpleAesManaged", e);
    }
}
 

import org.bouncycastle.crypto.engines.AESEngine; //导入依赖的package包/类
@Override
    public String decrypt(byte[] encrypted) {
//        Cipher cipher = null;
        String plain;
        try {
//            Security.addProvider(new BouncyCastlePQCProvider());
//            cipher = Cipher.getInstance("AES/CBC/PKCS5Padding", new BouncyCastlePQCProvider());
//            cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(encryptionKey, "AES"), new IvParameterSpec(iv));
//            plain = new String(cipher.doFinal(encrypted), "UTF-8");
            KeyParameter keyParam = new KeyParameter(encryptionKey);
            CipherParameters params = new ParametersWithIV(keyParam, iv);
            BlockCipherPadding padding = new PKCS7Padding();
            BufferedBlockCipher cipher = new PaddedBufferedBlockCipher(
                    new CBCBlockCipher(new AESEngine()), padding);
            cipher.reset();
            cipher.init(false, params);
            byte[] buffer = new byte[cipher.getOutputSize(encrypted.length)];
            int len = cipher.processBytes(encrypted, 0, encrypted.length, buffer, 0);
            len += cipher.doFinal(buffer, len);
            byte[] out = Arrays.copyOfRange(buffer, 0, len);
            plain = new String(out, "UTF-8");
        } catch (Exception e) {
            throw new RuntimeException("decrypt error in SimpleAesManaged", e);
        }
        return plain;
    }
 

import org.bouncycastle.crypto.engines.AESEngine; //导入依赖的package包/类
private static byte[] scp03_kdf(byte[] key, byte constant, byte[] context, int blocklen_bits) {
    // 11 bytes
    byte[] label = new byte[]{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};

    ByteArrayOutputStream bo = new ByteArrayOutputStream();
    try {
        bo.write(label); // 11 bytes of label
        bo.write(constant); // constant for the last byte
        bo.write(0x00); // separator
        bo.write((blocklen_bits >> 8) & 0xFF); // block size in two bytes
        bo.write(blocklen_bits & 0xFF);
    } catch (IOException ioe) {
        throw new RuntimeException(ioe);
    }
    byte[] blocka = bo.toByteArray();
    byte[] blockb = context;

    BlockCipher cipher = new AESEngine();
    CMac cmac = new CMac(cipher);
    KDFCounterBytesGenerator kdf = new KDFCounterBytesGenerator(cmac);
    kdf.init(new KDFCounterParameters(key, blocka, blockb, 8)); // counter size in bits

    byte[] cgram = new byte[blocklen_bits / 8];
    kdf.generateBytes(cgram, 0, cgram.length);
    return cgram;
}
 

import org.bouncycastle.crypto.engines.AESEngine; //导入依赖的package包/类
static Wrapper createRFC3211Wrapper(ASN1ObjectIdentifier algorithm)
    throws CMSException
{
    if (NISTObjectIdentifiers.id_aes128_CBC.equals(algorithm)
        || NISTObjectIdentifiers.id_aes192_CBC.equals(algorithm)
        || NISTObjectIdentifiers.id_aes256_CBC.equals(algorithm))
    {
        return new RFC3211WrapEngine(new AESEngine());
    }
    else if (PKCSObjectIdentifiers.des_EDE3_CBC.equals(algorithm))
    {
        return new RFC3211WrapEngine(new DESedeEngine());
    }
    else if (OIWObjectIdentifiers.desCBC.equals(algorithm))
    {
        return new RFC3211WrapEngine(new DESEngine());
    }
    else if (PKCSObjectIdentifiers.RC2_CBC.equals(algorithm))
    {
        return new RFC3211WrapEngine(new RC2Engine());
    }
    else
    {
        throw new CMSException("cannot recognise wrapper: " + algorithm);
    }
}
 

import org.bouncycastle.crypto.engines.AESEngine; //导入依赖的package包/类
public static byte[] aesEncrypt(byte[] plaintext, byte[] myPrivateKey, byte[] theirPublicKey, byte[] nonce) {
    try {
        byte[] dhSharedSecret = new byte[32];
        Curve25519.curve(dhSharedSecret, myPrivateKey, theirPublicKey);
        for (int i = 0; i < 32; i++) {
            dhSharedSecret[i] ^= nonce[i];
        }
        byte[] key = sha256().digest(dhSharedSecret);
        byte[] iv = new byte[16];
        secureRandom.get().nextBytes(iv);
        PaddedBufferedBlockCipher aes = new PaddedBufferedBlockCipher(new CBCBlockCipher(
                new AESEngine()));
        CipherParameters ivAndKey = new ParametersWithIV(new KeyParameter(key), iv);
        aes.init(true, ivAndKey);
        byte[] output = new byte[aes.getOutputSize(plaintext.length)];
        int ciphertextLength = aes.processBytes(plaintext, 0, plaintext.length, output, 0);
        ciphertextLength += aes.doFinal(output, ciphertextLength);
        byte[] result = new byte[iv.length + ciphertextLength];
        System.arraycopy(iv, 0, result, 0, iv.length);
        System.arraycopy(output, 0, result, iv.length, ciphertextLength);
        return result;
    } catch (InvalidCipherTextException e) {
        throw new RuntimeException(e.getMessage(), e);
    }
}
 

import org.bouncycastle.crypto.engines.AESEngine; //导入依赖的package包/类
@Test
public void compareModes() {
    BlockCipher engine = new AESEngine();
    int blockSize = engine.getBlockSize();
    BlockCipher ref = new SICBlockCipher(engine); // reference implementation
    BlockCipher uut = new CtrBlockCipher(engine); // unit under test
    PBEParametersGenerator gen = new PKCS5S2ParametersGenerator();
    byte[] salt = new byte[blockSize]; // used as salt and cipher input
    new SecureRandom().nextBytes(salt);
    gen.init("top secret".getBytes(), salt, 1);
    ParametersWithIV
            param = (ParametersWithIV) gen.generateDerivedParameters(
                blockSize * 8,
                blockSize * 8);

    ref.init(true, param);
    uut.init(true, param);
    assertModes(ref, uut);

    ref.init(false, param);
    uut.init(false, param);
    assertModes(ref, uut);
}
 

import org.bouncycastle.crypto.engines.AESEngine; //导入依赖的package包/类
public static byte[] aesEncrypt(byte[] plaintext, byte[] myPrivateKey, byte[] theirPublicKey) {
    try {
        byte[] dhSharedSecret = new byte[32];
        Curve25519.curve(dhSharedSecret, myPrivateKey, theirPublicKey);
        byte[] key = sha256().digest(dhSharedSecret);
        byte[] iv = new byte[16];
        secureRandom.get().nextBytes(iv);
        PaddedBufferedBlockCipher aes = new PaddedBufferedBlockCipher(new CBCBlockCipher(
                new AESEngine()));
        CipherParameters ivAndKey = new ParametersWithIV(new KeyParameter(key), iv);
        aes.init(true, ivAndKey);
        byte[] output = new byte[aes.getOutputSize(plaintext.length)];
        int ciphertextLength = aes.processBytes(plaintext, 0, plaintext.length, output, 0);
        ciphertextLength += aes.doFinal(output, ciphertextLength);
        byte[] result = new byte[iv.length + ciphertextLength];
        System.arraycopy(iv, 0, result, 0, iv.length);
        System.arraycopy(output, 0, result, iv.length, ciphertextLength);
        return result;
    } catch (InvalidCipherTextException e) {
        throw new RuntimeException(e.getMessage(), e);
    }
}
 

import org.bouncycastle.crypto.engines.AESEngine; //导入依赖的package包/类
public static byte[] aesDecrypt(byte[] ivCiphertext, byte[] myPrivateKey, byte theirPublicKey[]) {
    try {
        if (ivCiphertext.length < 16 || ivCiphertext.length % 16 != 0) {
            throw new InvalidCipherTextException("invalid ciphertext");
        }
        byte[] iv = Arrays.copyOfRange(ivCiphertext, 0, 16);
        byte[] ciphertext = Arrays.copyOfRange(ivCiphertext, 16, ivCiphertext.length);
        byte[] dhSharedSecret = new byte[32];
        Curve25519.curve(dhSharedSecret, myPrivateKey, theirPublicKey);
        byte[] key = sha256().digest(dhSharedSecret);
        PaddedBufferedBlockCipher aes = new PaddedBufferedBlockCipher(new CBCBlockCipher(
                new AESEngine()));
        CipherParameters ivAndKey = new ParametersWithIV(new KeyParameter(key), iv);
        aes.init(false, ivAndKey);
        byte[] output = new byte[aes.getOutputSize(ciphertext.length)];
        int plaintextLength = aes.processBytes(ciphertext, 0, ciphertext.length, output, 0);
        plaintextLength += aes.doFinal(output, plaintextLength);
        byte[] result = new byte[plaintextLength];
        System.arraycopy(output, 0, result, 0, result.length);
        return result;
    } catch (InvalidCipherTextException e) {
        throw new RuntimeException(e.getMessage(), e);
    }
}
 

import org.bouncycastle.crypto.engines.AESEngine; //导入依赖的package包/类
private static void initBlockCipherEngines() {
	blockCipherEngines.put("MARS", MarsEngine.class);
	blockCipherEngines.put("AES", AESEngine.class);
	blockCipherEngines.put("Blowfish", BlowfishEngine.class);
	blockCipherEngines.put("Camellia", CamelliaEngine.class);
	blockCipherEngines.put("CAST5", CAST5Engine.class);
	blockCipherEngines.put("CAST6", CAST6Engine.class);
	blockCipherEngines.put("DESede", DESedeEngine.class);
	blockCipherEngines.put("DES", DESEngine.class);
	blockCipherEngines.put("GOST28147", GOST28147Engine.class);
	blockCipherEngines.put("IDEA", IDEAEngine.class);
	blockCipherEngines.put("Noekeon", NoekeonEngine.class);
	blockCipherEngines.put("RC2", RC2Engine.class);
	blockCipherEngines.put("RC5", RC532Engine.class);
	blockCipherEngines.put("RC6", RC6Engine.class);
	blockCipherEngines.put("SEED", SEEDEngine.class);
	blockCipherEngines.put("Serpent", SerpentEngine.class);
	blockCipherEngines.put("Shacal2", Shacal2Engine.class);
	blockCipherEngines.put("Skipjack", SkipjackEngine.class);
	blockCipherEngines.put("SM4", SM4Engine.class);
	blockCipherEngines.put("TEA", TEAEngine.class);
	blockCipherEngines.put("Twofish", TwofishEngine.class);
	blockCipherEngines.put("XTEA", XTEAEngine.class);
	blockCipherEngines.put("Threefish", ThreefishEngine.class);
}
 

import org.bouncycastle.crypto.engines.AESEngine; //导入依赖的package包/类
public void InitCiphers() {
	// create the ciphers
	// AES block cipher in CBC mode with padding
	encryptCipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(
			new AESEngine()));

	decryptCipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(
			new AESEngine()));

	// create the IV parameter
	ParametersWithIV parameterIV = new ParametersWithIV(new KeyParameter(
			key), IV);

	encryptCipher.init(true, parameterIV);
	decryptCipher.init(false, parameterIV);
}
 

import org.bouncycastle.crypto.engines.AESEngine; //导入依赖的package包/类
/**
 * A password-based data decryption using a constant salt value "<b>constantSalt</b>"
 * @param cipher
 * @param password
 * @param salt
 * @param iterationCount
 * @return
 * @throws Exception
 */
public static byte[] decrypt(byte[] cipher, String password) throws Exception
{
    PKCS12ParametersGenerator pGen = new PKCS12ParametersGenerator(new SHA256Digest());
    char[] passwordChars = password.toCharArray();
    final byte[] pkcs12PasswordBytes = PBEParametersGenerator.PKCS12PasswordToBytes(passwordChars);
    pGen.init(pkcs12PasswordBytes, constantSalt.getBytes(), iterations);
    CBCBlockCipher aesCBC = new CBCBlockCipher(new AESEngine());
    ParametersWithIV aesCBCParams = (ParametersWithIV) pGen.generateDerivedParameters(256, 128);
    aesCBC.init(false, aesCBCParams);
    PaddedBufferedBlockCipher aesCipher = new PaddedBufferedBlockCipher(aesCBC, new PKCS7Padding());
    byte[] plainTemp = new byte[aesCipher.getOutputSize(cipher.length)];
    int offset = aesCipher.processBytes(cipher, 0, cipher.length, plainTemp, 0);
    int last = aesCipher.doFinal(plainTemp, offset);
    final byte[] plain = new byte[offset + last];
    System.arraycopy(plainTemp, 0, plain, 0, plain.length);
    return plain;
}
 

import org.bouncycastle.crypto.engines.AESEngine; //导入依赖的package包/类
private static final byte[] encrypt(byte[] key, byte[] data) throws Exception
{
	PaddedBufferedBlockCipher c = new PaddedBufferedBlockCipher(new CBCBlockCipher(new AESEngine()));
	CipherParameters p = new KeyParameter(key);
	try
	{
		SecretByteArrayOutputStream ba = new SecretByteArrayOutputStream();
		try
		{
			XCipherOutputStream out = new XCipherOutputStream(c, p, ba);
			out.write(data);
			out.close();
	
			byte[] b = ba.toByteArray();
			return b;
		}
		finally
		{
			CKit.close(ba);
		}
	}
	finally
	{
		Crypto.zero(p);
	}
}
 

import org.bouncycastle.crypto.engines.AESEngine; //导入依赖的package包/类
public EAXEncryptStream(byte[] key, byte[] nonce, byte[] associatedData, OutputStream os)
{
	if(key.length != KEY_LENGTH_BYTES)
	{
		throw new IllegalArgumentException("key must be " + KEY_LENGTH_BYTES*8 + " bits");
	}
	
	this.cipher = new EAXBlockCipher(new AESEngine());
	this.os = os;
	
	keyParameter = new KeyParameter(key);
	AEADParameters par = new AEADParameters(keyParameter, EAXDecryptStream.MAC_LEN_BITS, nonce, associatedData);

	cipher.init(true, par);
	
	out = new byte[BUFFER_SIZE];
}
 

import org.bouncycastle.crypto.engines.AESEngine; //导入依赖的package包/类
public EAXDecryptStream(byte[] key, byte[] nonce, byte[] associatedData, InputStream in)
{
	if(key.length != KEY_LENGTH_BYTES)
	{
		throw new IllegalArgumentException("key must be " + KEY_LENGTH_BYTES*8 + " bits");
	}
	
	this.in = in;
	this.cipher = new EAXBlockCipher(new AESEngine());
	
	keyParameter = new KeyParameter(key);
	AEADParameters par = new AEADParameters(keyParameter, MAC_LEN_BITS, nonce, associatedData);

	cipher.init(false, par);

	out = new byte[BUFFER_SIZE];
	buf = new byte[BUFFER_SIZE];
}
 

import org.bouncycastle.crypto.engines.AESEngine; //导入依赖的package包/类
@Override
public OutputStream encryptedOutputStream(final Path path, final String password) throws IOException,
        EncryptionFailedException {
    try {
        final byte[] salt = generateSalt();
        final byte[] key = generateKey(password, salt);
        final byte[] iv = generateIV();
        final byte[] fileInitBlock = generateOutputInitBlock(salt, iv);

        final PaddedBufferedBlockCipher cipher = new PaddedBufferedBlockCipher(
                new CBCBlockCipher(new AESEngine()), new PKCS7Padding());

        final KeyParameter keyParam = new KeyParameter(key);
        final CipherParameters params = new ParametersWithIV(keyParam, iv);
        cipher.init(true, params);

        final BufferedOutputStream out = new BufferedOutputStream(Files.newOutputStream(path));
        out.write(fileInitBlock);

        return new CipherOutputStream(out, cipher);
    } catch (InvalidKeySpecException | NoSuchAlgorithmException e) {
        throw new EncryptionFailedException(e);
    }
}