本文整理汇总了Java中org.bouncycastle.crypto.modes.OFBBlockCipher类的典型用法代码示例。如果您正苦于以下问题：Java OFBBlockCipher类的具体用法？Java OFBBlockCipher怎么用？Java OFBBlockCipher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。
OFBBlockCipher类属于org.bouncycastle.crypto.modes包，在下文中一共展示了OFBBlockCipher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: getCipher
import org.bouncycastle.crypto.modes.OFBBlockCipher; //导入依赖的package包/类
@Override
protected StreamCipher getCipher() {
String method = getMethod();
AESFastEngine engine = new AESFastEngine();
switch (method) {
case CIPHER_AES_128_CFB:
case CIPHER_AES_192_CFB:
case CIPHER_AES_256_CFB:
return new CFBBlockCipher(engine, 128);
case CIPHER_AES_128_CFB8:
case CIPHER_AES_192_CFB8:
case CIPHER_AES_256_CFB8:
return new CFBBlockCipher(engine, 8);
case CIPHER_AES_128_OFB:
case CIPHER_AES_192_OFB:
case CIPHER_AES_256_OFB:
return new OFBBlockCipher(engine, 128);
default:
throw new IllegalArgumentException(method);
}
}
示例2: getIVSize
import org.bouncycastle.crypto.modes.OFBBlockCipher; //导入依赖的package包/类
@Override
public int getIVSize()
{
int ivSize = this.ivSize;
if (ivSize < 0) {
final BlockCipher underlyingCipher = delegate.getUnderlyingCipher();
if (underlyingCipher instanceof CFBBlockCipher)
ivSize = ((CFBBlockCipher)underlyingCipher).getUnderlyingCipher().getBlockSize();
else if (underlyingCipher instanceof OFBBlockCipher)
ivSize = ((OFBBlockCipher)underlyingCipher).getUnderlyingCipher().getBlockSize();
else
ivSize = underlyingCipher.getBlockSize();
if (delegate instanceof CCMBlockCipher)
--ivSize;
this.ivSize = ivSize;
}
return ivSize;
}
示例3: testNullOFB
import org.bouncycastle.crypto.modes.OFBBlockCipher; //导入依赖的package包/类
private void testNullOFB()
throws InvalidCipherTextException
{
BufferedBlockCipher b = new BufferedBlockCipher(new OFBBlockCipher(new AESEngine(), 128));
KeyParameter kp = new KeyParameter(Hex.decode("5F060D3716B345C253F6749ABAC10917"));
b.init(true, new ParametersWithIV(kp, new byte[16]));
byte[] out = new byte[b.getOutputSize(tData.length)];
int len = b.processBytes(tData, 0, tData.length, out, 0);
len += b.doFinal(out, len);
if (!areEqual(outOFB1, out))
{
fail("no match on first nullOFB check");
}
b.init(true, new ParametersWithIV(null, Hex.decode("000102030405060708090a0b0c0d0e0f")));
len = b.processBytes(tData, 0, tData.length, out, 0);
len += b.doFinal(out, len);
if (!areEqual(outOFB2, out))
{
fail("no match on second nullOFB check");
}
}
示例4: testModes
import org.bouncycastle.crypto.modes.OFBBlockCipher; //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]));
}
}
示例5: getIVSize
import org.bouncycastle.crypto.modes.OFBBlockCipher; //导入依赖的package包/类
@Override
public int getIVSize()
{
if (ivSize < 0) {
final String mode = CryptoRegistry.splitTransformation(getTransformation())[1];
if ("".equals(mode) || "ECB".equals(mode))
ivSize = 0; // No block cipher mode (i.e. ECB) => no IV.
else {
if (delegate instanceof CTSBlockCipher) {
final CTSBlockCipher cts = (CTSBlockCipher) delegate;
if (cts.getUnderlyingCipher() instanceof CBCBlockCipher)
ivSize = cts.getUnderlyingCipher().getBlockSize();
else
ivSize = 0;
}
else {
final BlockCipher underlyingCipher = delegate.getUnderlyingCipher();
if (underlyingCipher instanceof CFBBlockCipher)
ivSize = ((CFBBlockCipher)underlyingCipher).getUnderlyingCipher().getBlockSize();
else if (underlyingCipher instanceof OFBBlockCipher)
ivSize = ((OFBBlockCipher)underlyingCipher).getUnderlyingCipher().getBlockSize();
else
ivSize = underlyingCipher.getBlockSize();
}
}
}
return ivSize;
}
示例6: Twofish_OFB8
import org.bouncycastle.crypto.modes.OFBBlockCipher; //导入依赖的package包/类
public Twofish_OFB8()
{
super(new OFBBlockCipher(new TwofishEngine(), 8), 128);
}
示例7: DES_OFB8
import org.bouncycastle.crypto.modes.OFBBlockCipher; //导入依赖的package包/类
public DES_OFB8()
{
super(new OFBBlockCipher(new DESEngine(), 8), 64);
}
示例8: DESede_OFB8
import org.bouncycastle.crypto.modes.OFBBlockCipher; //导入依赖的package包/类
public DESede_OFB8()
{
super(new OFBBlockCipher(new DESedeEngine(), 8), 64);
}
示例9: Skipjack_OFB8
import org.bouncycastle.crypto.modes.OFBBlockCipher; //导入依赖的package包/类
public Skipjack_OFB8()
{
super(new OFBBlockCipher(new SkipjackEngine(), 8), 64);
}
示例10: Blowfish_OFB8
import org.bouncycastle.crypto.modes.OFBBlockCipher; //导入依赖的package包/类
public Blowfish_OFB8()
{
super(new OFBBlockCipher(new BlowfishEngine(), 8), 64);
}
示例11: OFB
import org.bouncycastle.crypto.modes.OFBBlockCipher; //导入依赖的package包/类
public OFB()
{
super(new BufferedBlockCipher(new OFBBlockCipher(new RC6Engine(), 128)), 128);
}
示例12: OFB
import org.bouncycastle.crypto.modes.OFBBlockCipher; //导入依赖的package包/类
public OFB()
{
super(new BufferedBlockCipher(new OFBBlockCipher(new AESFastEngine(), 128)), 128);
}
示例13: performTest
import org.bouncycastle.crypto.modes.OFBBlockCipher; //导入依赖的package包/类
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]));
}
示例14: perform
import org.bouncycastle.crypto.modes.OFBBlockCipher; //导入依赖的package包/类
public TestResult perform()
{
KeyParameter key = new KeyParameter(Hex.decode("0011223344556677"));
byte[] input = Hex.decode("4e6f7720");
byte[] out1 = new byte[4];
byte[] out2 = new byte[4];
BlockCipher ofb = new OFBBlockCipher(new DESEngine(), 32);
ofb.init(true, new ParametersWithIV(key, Hex.decode("1122334455667788")));
ofb.processBlock(input, 0, out1, 0);
ofb.init(false, new ParametersWithIV(key, Hex.decode("1122334455667788")));
ofb.processBlock(out1, 0, out2, 0);
if (!isEqualTo(out2, input))
{
return new SimpleTestResult(false, getName() + ": test 1 - in != out");
}
ofb.init(true, new ParametersWithIV(key, Hex.decode("11223344")));
ofb.processBlock(input, 0, out1, 0);
ofb.init(false, new ParametersWithIV(key, Hex.decode("0000000011223344")));
ofb.processBlock(out1, 0, out2, 0);
if (!isEqualTo(out2, input))
{
return new SimpleTestResult(false, getName() + ": test 2 - in != out");
}
BlockCipher cfb = new CFBBlockCipher(new DESEngine(), 32);
cfb.init(true, new ParametersWithIV(key, Hex.decode("1122334455667788")));
cfb.processBlock(input, 0, out1, 0);
cfb.init(false, new ParametersWithIV(key, Hex.decode("1122334455667788")));
cfb.processBlock(out1, 0, out2, 0);
if (!isEqualTo(out2, input))
{
return new SimpleTestResult(false, getName() + ": test 3 - in != out");
}
cfb.init(true, new ParametersWithIV(key, Hex.decode("11223344")));
cfb.processBlock(input, 0, out1, 0);
cfb.init(false, new ParametersWithIV(key, Hex.decode("0000000011223344")));
cfb.processBlock(out1, 0, out2, 0);
if (!isEqualTo(out2, input))
{
return new SimpleTestResult(false, getName() + ": test 4 - in != out");
}
return new SimpleTestResult(true, getName() + ": Okay");
}
示例15: initBlockCipherModes
import org.bouncycastle.crypto.modes.OFBBlockCipher; //导入依赖的package包/类
private static void initBlockCipherModes() {
blockCipherMode.put("CBC", CBCBlockCipher.class);
blockCipherMode.put("CFB", CFBBlockCipher.class);
blockCipherMode.put("OFB", OFBBlockCipher.class);
blockCipherMode.put("CTR", SICBlockCipher.class);
}