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Java GCMBlockCipher类代码示例

本文整理汇总了Java中org.bouncycastle.crypto.modes.GCMBlockCipher类的典型用法代码示例。如果您正苦于以下问题：Java GCMBlockCipher类的具体用法？Java GCMBlockCipher怎么用？Java GCMBlockCipher使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。


GCMBlockCipher类属于org.bouncycastle.crypto.modes包，在下文中一共展示了GCMBlockCipher类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: CipherWriteStreamValidation

import org.bouncycastle.crypto.modes.GCMBlockCipher; //导入依赖的package包/类
public CipherWriteStreamValidation(byte[] secretBytes, byte[] salt) {
    this.salt = salt.clone();
    secretBytes = secretBytes.clone();
    if (secretBytes.length != KEY_SIZE_BYTES) {
        secretBytes = Hashing.sha256().hashBytes(secretBytes).asBytes();
    }
    try {
        KeyParameter key = new KeyParameter(secretBytes);
        AEADParameters params = new AEADParameters(key, MAC_SIZE_BITS, this.salt);

        this.encryptor = new GCMBlockCipher(new AESFastEngine());
        this.encryptor.init(true, params);

        this.decryptor = new GCMBlockCipher(new AESFastEngine());
        this.decryptor.init(false, params);

    } catch (Exception e) {
        throw new RuntimeException("could not create cipher for AES256", e);
    } finally {
        Arrays.fill(secretBytes, (byte) 0);
    }
}
开发者ID:pitchpoint-solutions，项目名称:sfs，代码行数:23，代码来源:CipherWriteStreamValidation.java

示例2: performTest

import org.bouncycastle.crypto.modes.GCMBlockCipher; //导入依赖的package包/类
public void performTest()
{
    for (int i = 0; i < TEST_VECTORS.length; i++)
    {
        TestCase testCase = TEST_VECTORS[i];

        Mac mac = new GMac(new GCMBlockCipher(new AESFastEngine()), testCase.getTag().length * 8);
        CipherParameters key = new KeyParameter(testCase.getKey());
        mac.init(new ParametersWithIV(key, testCase.getIv()));

        testSingleByte(mac, testCase);
        testMultibyte(mac, testCase);
    }

    // Invalid mac size
    testInvalidMacSize(97);
    testInvalidMacSize(136);
    testInvalidMacSize(24);
}
开发者ID:ttt43ttt，项目名称:gwt-crypto，代码行数:20，代码来源:GMacTest.java

示例3: testInvalidMacSize

import org.bouncycastle.crypto.modes.GCMBlockCipher; //导入依赖的package包/类
private void testInvalidMacSize(int size)
{
    try
    {
        GMac mac = new GMac(new GCMBlockCipher(new AESFastEngine()), size);
        mac.init(new ParametersWithIV(null, new byte[16]));
        fail("Expected failure for illegal mac size " + size);
    }
    catch (IllegalArgumentException e)
    {
        if (!e.getMessage().startsWith("Invalid value for MAC size"))
        {
            fail("Illegal mac size failed with unexpected message");
        }
    }
}
开发者ID:ttt43ttt，项目名称:gwt-crypto，代码行数:17，代码来源:GMacTest.java

示例4: runTestCase

import org.bouncycastle.crypto.modes.GCMBlockCipher; //导入依赖的package包/类
private void runTestCase(
    GCMMultiplier   encM,
    GCMMultiplier   decM,
    String          testName,
    byte[]          K,
    byte[]          IV,
    byte[]          A,
    byte[]          SA,
    byte[]          P,
    byte[]          C,
    byte[]          T)
    throws InvalidCipherTextException
{
    AEADParameters parameters = new AEADParameters(new KeyParameter(K), T.length * 8, IV, A);
    GCMBlockCipher encCipher = initCipher(encM, true, parameters);
    GCMBlockCipher decCipher = initCipher(decM, false, parameters);
    checkTestCase(encCipher, decCipher, testName, SA, P, C, T);
    checkTestCase(encCipher, decCipher, testName + " (reused)", SA, P, C, T);

    // Key reuse
    AEADParameters keyReuseParams = AEADTestUtil.reuseKey(parameters);
    encCipher.init(true, keyReuseParams);
    decCipher.init(false, keyReuseParams);
    checkTestCase(encCipher, decCipher, testName + " (key reuse)", SA, P, C, T);
}
开发者ID:ttt43ttt，项目名称:gwt-crypto，代码行数:26，代码来源:GCMTest.java

示例5: SAES256v01

import org.bouncycastle.crypto.modes.GCMBlockCipher; //导入依赖的package包/类
public SAES256v01(byte[] secretBytes, byte[] salt) {
    this.salt = salt.clone();
    secretBytes = secretBytes.clone();
    if (secretBytes.length != KEY_SIZE_BYTES) {
        secretBytes = Hashing.sha256().hashBytes(secretBytes).asBytes();
    }
    try {
        KeyParameter key = new KeyParameter(secretBytes);
        AEADParameters params = new AEADParameters(key, MAC_SIZE_BITS, this.salt);

        this.encryptor = new GCMBlockCipher(new AESFastEngine());
        this.encryptor.init(true, params);

        this.decryptor = new GCMBlockCipher(new AESFastEngine());
        this.decryptor.init(false, params);

    } catch (Exception e) {
        throw new RuntimeException("could not create cipher for AES256", e);
    } finally {
        Arrays.fill(secretBytes, (byte) 0);
    }
}
开发者ID:pitchpoint-solutions，项目名称:sfs，代码行数:23，代码来源:SAES256v01.java

示例6: genKeyId

import org.bouncycastle.crypto.modes.GCMBlockCipher; //导入依赖的package包/类
private AesKeyId genKeyId() {
    try {
        final GCMBlockCipher gcm = new GCMBlockCipher(new AESFastEngine());
        gcm.init(true, new AEADParameters(
            new KeyParameter(key), 128, KEYID_AD, KEYID_AD));
        final byte[] ciphertext = new byte[gcm.getOutputSize(ZERO_BYTES.length)];
        final int resp = gcm.processBytes(ZERO_BYTES, 0, ZERO_BYTES.length,
            ciphertext, 0);
        gcm.doFinal(ciphertext, resp);
        return new AesKeyId(ciphertext);
    } catch (final InvalidCipherTextException e) {
        // Should be impossible when we're encrypting!
        throw new RuntimeException(
            "Unexpected behaviour in crypto libraries", e);
    }
}
开发者ID:lshift，项目名称:bletchley，代码行数:17，代码来源:AesKey.java

示例7: decrypt

import org.bouncycastle.crypto.modes.GCMBlockCipher; //导入依赖的package包/类
public SequenceItem decrypt(final ConverterCatalog r, final AesPacket packet)
    throws InvalidInputException {
    final GCMBlockCipher gcm = new GCMBlockCipher(new AESFastEngine());
    gcm.init(false, new AEADParameters(
        new KeyParameter(key), 128, packet.nonce, ZERO_BYTES));
    final byte[] newtext = new byte[
        gcm.getOutputSize(packet.ciphertext.length)];
    final int pp = gcm.processBytes(packet.ciphertext, 0,
        packet.ciphertext.length, newtext, 0);
    try {
        gcm.doFinal(newtext, pp);
    } catch (final InvalidCipherTextException e) {
        throw new CryptographyException(e);
    }
    return ConvertUtils.fromBytes(r, SequenceItem.class, newtext);
}
开发者ID:lshift，项目名称:bletchley，代码行数:17，代码来源:AesKey.java

示例8: decrypt

import org.bouncycastle.crypto.modes.GCMBlockCipher; //导入依赖的package包/类
public static byte[] decrypt(byte[] key, byte[] data) {
    // TODO utilize GCMAES#decrypt method
    try {
        if (data.length < NONCE_LENGTH + TAG_LENGTH) {
            throw new IllegalArgumentException("data packet too short");
        }

        int cipherTextLength = data.length - NONCE_LENGTH - TAG_LENGTH;

        byte[] nonce = Arrays.copyOf(data, NONCE_LENGTH);

        GCMBlockCipher cipher = new GCMBlockCipher(new AESFastEngine());
        AEADParameters parameters = new AEADParameters(new KeyParameter(key), TAG_LENGTH * 8, nonce);
        cipher.init(false, parameters);

        byte[] out = new byte[cipher.getOutputSize(cipherTextLength + TAG_LENGTH)];

        int pos = cipher.processBytes(data, NONCE_LENGTH, data.length - NONCE_LENGTH, out, 0);
        pos += cipher.doFinal(out, pos);

        return Arrays.copyOf(out, pos);

    } catch (IllegalStateException | InvalidCipherTextException ex) {
        throw new IllegalArgumentException(ex);
    }
}
开发者ID:horrorho，项目名称:InflatableDonkey，代码行数:27，代码来源:GCMDataB.java

示例9: aesGcmEncrypt

import org.bouncycastle.crypto.modes.GCMBlockCipher; //导入依赖的package包/类
public static byte[] aesGcmEncrypt(Transformation transformation, byte[] raw, byte[] secret, int atLength, byte[] iv, byte[] aad) throws Exception {
	BlockCipher blockCipher = new AESEngine();
	blockCipher.init(true, new KeyParameter(new SecretKeySpec(secret, "AES").getEncoded()));

	GCMBlockCipher aGCMBlockCipher = new GCMBlockCipher(blockCipher);
	aGCMBlockCipher.init(true, new AEADParameters(new KeyParameter(secret), atLength, iv, aad));

	int len = aGCMBlockCipher.getOutputSize(raw.length);
	byte[] out = new byte[len];
	int outOff = aGCMBlockCipher.processBytes(raw, 0, raw.length, out, 0);
	aGCMBlockCipher.doFinal(out, outOff);

	return out;
}
开发者ID:SKplanet，项目名称:syruppay-java，代码行数:15，代码来源:CryptoUtils.java

示例10: performTest

import org.bouncycastle.crypto.modes.GCMBlockCipher; //导入依赖的package包/类
public void performTest()
{
    for (int i = 0; i < TEST_VECTORS.length; i++)
    {
        TestCase testCase = TEST_VECTORS[i];

        Mac mac = new GMac(new GCMBlockCipher(new AESFastEngine()), testCase.getTag().length * 8);
        CipherParameters key = new KeyParameter(testCase.getKey());
        mac.init(new ParametersWithIV(key, testCase.getIv()));

        testSingleByte(mac, testCase);
        testMultibyte(mac, testCase);
    }

    // Invalid mac size
    testInvalidMacSize(97);
    testInvalidMacSize(136);
    testInvalidMacSize(88);
    testInvalidMacSize(64);
}
开发者ID:credentials，项目名称:irma_future_id，代码行数:21，代码来源:GMacTest.java

示例11: runTestCase

import org.bouncycastle.crypto.modes.GCMBlockCipher; //导入依赖的package包/类
private void runTestCase(
    GCMMultiplier   encM,
    GCMMultiplier   decM,
    String          testName,
    byte[]          K,
    byte[]          IV,
    byte[]          A,
    byte[]          SA,
    byte[]          P,
    byte[]          C,
    byte[]          T)
    throws InvalidCipherTextException
{
    AEADParameters parameters = new AEADParameters(new KeyParameter(K), T.length * 8, IV, A);
    GCMBlockCipher encCipher = initCipher(encM, true, parameters);
    GCMBlockCipher decCipher = initCipher(decM, false, parameters);
    checkTestCase(encCipher, decCipher, testName, SA, P, C, T);
    checkTestCase(encCipher, decCipher, testName + " (reused)", SA, P, C, T);

    // Key reuse
    AEADParameters keyReuseParams = new AEADParameters(null, parameters.getMacSize(), parameters.getNonce(), parameters.getAssociatedText());
    encCipher.init(true, keyReuseParams);
    decCipher.init(false, keyReuseParams);
    checkTestCase(encCipher, decCipher, testName + " (key reuse)", SA, P, C, T);
    checkTestCase(encCipher, decCipher, testName + " (key reuse)", SA, P, C, T);
}
开发者ID:credentials，项目名称:irma_future_id，代码行数:27，代码来源:GCMTest.java

示例12: init

import org.bouncycastle.crypto.modes.GCMBlockCipher; //导入依赖的package包/类
protected void init(boolean encryption, PlainFileKey fileKey) throws IllegalArgumentException {
    byte[] key = CryptoUtils.stringToByteArray(fileKey.getKey());
    byte[] iv = CryptoUtils.stringToByteArray(fileKey.getIv());
    AEADParameters parameters = new AEADParameters(new KeyParameter(key), 8 * TAG_SIZE, iv);
    realCipher = new GCMBlockCipher(new AESFastEngine());
    realCipher.init(encryption, parameters);
}
开发者ID:michaelnetter，项目名称:dracoon-dropzone，代码行数:8，代码来源:FileCipher.java

示例13: testModes

import org.bouncycastle.crypto.modes.GCMBlockCipher; //导入依赖的package包/类
private void testModes(BlockCipher cipher1, BlockCipher cipher2, int keySize)
    throws Exception
{
    final KeyParameter key = new KeyParameter(new byte[keySize]);
    final int blockSize = getBlockSize(cipher1);
    final CipherParameters withIv = new ParametersWithIV(key, new byte[blockSize]);

    if (blockSize > 1)
    {
        testMode(new PaddedBufferedBlockCipher(cipher1, new PKCS7Padding()), key);

        testMode(new PaddedBufferedBlockCipher(new CBCBlockCipher(cipher1), new PKCS7Padding()), withIv);

        testMode(new BufferedBlockCipher(new OFBBlockCipher(cipher1, blockSize)), withIv);
        testMode(new BufferedBlockCipher(new CFBBlockCipher(cipher1, blockSize)), withIv);
        testMode(new BufferedBlockCipher(new SICBlockCipher(cipher1)), withIv);
    }
    // CTS requires at least one block
    if (blockSize <= 16 && streamSize >= blockSize)
    {
        testMode(new CTSBlockCipher(cipher1), key);
    }
    if (blockSize <= 16 && streamSize >= blockSize)
    {
        testMode(new NISTCTSBlockCipher(NISTCTSBlockCipher.CS1, cipher1), key);
        testMode(new NISTCTSBlockCipher(NISTCTSBlockCipher.CS2, cipher1), key);
        testMode(new NISTCTSBlockCipher(NISTCTSBlockCipher.CS3, cipher1), key);
    }
    if (blockSize == 8 || blockSize == 16)
    {
        testMode(new EAXBlockCipher(cipher1), withIv);
    }
    if (blockSize == 16)
    {
        testMode(new CCMBlockCipher(cipher1), new ParametersWithIV(key, new byte[7]));
        testMode(new GCMBlockCipher(cipher1), withIv);
        testMode(new OCBBlockCipher(cipher1, cipher2), new ParametersWithIV(key, new byte[15]));
    }
}
开发者ID:ttt43ttt，项目名称:gwt-crypto，代码行数:40，代码来源:CipherStreamTest.java

示例14: outputSizeTests

import org.bouncycastle.crypto.modes.GCMBlockCipher; //导入依赖的package包/类
private void outputSizeTests()
{
    byte[] K = new byte[16];
    byte[] A = null;
    byte[] IV = new byte[16];

    AEADParameters parameters = new AEADParameters(new KeyParameter(K), 16 * 8, IV, A);
    GCMBlockCipher cipher = initCipher(null, true, parameters);

    if (cipher.getUpdateOutputSize(0) != 0)
    {
        fail("incorrect getUpdateOutputSize for initial 0 bytes encryption");
    }

    if (cipher.getOutputSize(0) != 16)
    {
        fail("incorrect getOutputSize for initial 0 bytes encryption");
    }

    cipher.init(false, parameters);

    if (cipher.getUpdateOutputSize(0) != 0)
    {
        fail("incorrect getUpdateOutputSize for initial 0 bytes decryption");
    }

    // NOTE: 0 bytes would be truncated data, but we want it to fail in the doFinal, not here
    if (cipher.getOutputSize(0) != 0)
    {
        fail("fragile getOutputSize for initial 0 bytes decryption");
    }

    if (cipher.getOutputSize(16) != 0)
    {
        fail("incorrect getOutputSize for initial MAC-size bytes decryption");
    }
}
开发者ID:ttt43ttt，项目名称:gwt-crypto，代码行数:38，代码来源:GCMTest.java

示例15: getMac

import org.bouncycastle.crypto.modes.GCMBlockCipher; //导入依赖的package包/类
@Override
protected Mac getMac(String mode) {
	if (!currentMode.equals(mode) || mac == null) {
		BlockCipher engine = BlockCiphers.getBlockCipherEngine(mode);
		mac = new org.bouncycastle.crypto.macs.GMac(new GCMBlockCipher(engine));
		currentMode = mode;
	}
	return mac;
}
开发者ID:shilongdai，项目名称:vsDiaryWriter，代码行数:10，代码来源:GMac.java


注：本文中的org.bouncycastle.crypto.modes.GCMBlockCipher类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。