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Diffstat (limited to 'prov/src/main/java/org/bouncycastle/jce/provider/JCEStreamCipher.java')
-rw-r--r--prov/src/main/java/org/bouncycastle/jce/provider/JCEStreamCipher.java601
1 files changed, 0 insertions, 601 deletions
diff --git a/prov/src/main/java/org/bouncycastle/jce/provider/JCEStreamCipher.java b/prov/src/main/java/org/bouncycastle/jce/provider/JCEStreamCipher.java
deleted file mode 100644
index 68ef472d..00000000
--- a/prov/src/main/java/org/bouncycastle/jce/provider/JCEStreamCipher.java
+++ /dev/null
@@ -1,601 +0,0 @@
-package org.bouncycastle.jce.provider;
-
-import java.security.AlgorithmParameters;
-import java.security.InvalidAlgorithmParameterException;
-import java.security.InvalidKeyException;
-import java.security.Key;
-import java.security.KeyFactory;
-import java.security.NoSuchAlgorithmException;
-import java.security.NoSuchProviderException;
-import java.security.PrivateKey;
-import java.security.SecureRandom;
-import java.security.spec.AlgorithmParameterSpec;
-import java.security.spec.InvalidKeySpecException;
-import java.security.spec.PKCS8EncodedKeySpec;
-import java.security.spec.X509EncodedKeySpec;
-
-import javax.crypto.BadPaddingException;
-import javax.crypto.Cipher;
-import javax.crypto.CipherSpi;
-import javax.crypto.IllegalBlockSizeException;
-import javax.crypto.NoSuchPaddingException;
-import javax.crypto.SecretKey;
-import javax.crypto.ShortBufferException;
-import javax.crypto.spec.IvParameterSpec;
-import javax.crypto.spec.PBEParameterSpec;
-import javax.crypto.spec.RC2ParameterSpec;
-import javax.crypto.spec.RC5ParameterSpec;
-import javax.crypto.spec.SecretKeySpec;
-
-import org.bouncycastle.asn1.pkcs.PrivateKeyInfo;
-import org.bouncycastle.crypto.CipherParameters;
-import org.bouncycastle.crypto.DataLengthException;
-import org.bouncycastle.crypto.StreamCipher;
-import org.bouncycastle.crypto.engines.BlowfishEngine;
-import org.bouncycastle.crypto.engines.DESEngine;
-import org.bouncycastle.crypto.engines.DESedeEngine;
-import org.bouncycastle.crypto.engines.SkipjackEngine;
-import org.bouncycastle.crypto.engines.TwofishEngine;
-import org.bouncycastle.crypto.modes.CFBBlockCipher;
-import org.bouncycastle.crypto.modes.OFBBlockCipher;
-import org.bouncycastle.crypto.params.KeyParameter;
-import org.bouncycastle.crypto.params.ParametersWithIV;
-import org.bouncycastle.jcajce.provider.symmetric.util.BCPBEKey;
-import org.bouncycastle.jcajce.provider.symmetric.util.PBE;
-
-public class JCEStreamCipher
- extends CipherSpi
- implements PBE
-{
- //
- // specs we can handle.
- //
- private Class[] availableSpecs =
- {
- RC2ParameterSpec.class,
- RC5ParameterSpec.class,
- IvParameterSpec.class,
- PBEParameterSpec.class
- };
-
- private StreamCipher cipher;
- private ParametersWithIV ivParam;
-
- private int ivLength = 0;
-
- private PBEParameterSpec pbeSpec = null;
- private String pbeAlgorithm = null;
-
- private AlgorithmParameters engineParams;
-
- protected JCEStreamCipher(
- StreamCipher engine,
- int ivLength)
- {
- cipher = engine;
- this.ivLength = ivLength;
- }
-
- protected int engineGetBlockSize()
- {
- return 0;
- }
-
- protected byte[] engineGetIV()
- {
- return (ivParam != null) ? ivParam.getIV() : null;
- }
-
- protected int engineGetKeySize(
- Key key)
- {
- return key.getEncoded().length * 8;
- }
-
- protected int engineGetOutputSize(
- int inputLen)
- {
- return inputLen;
- }
-
- protected AlgorithmParameters engineGetParameters()
- {
- if (engineParams == null)
- {
- if (pbeSpec != null)
- {
- try
- {
- AlgorithmParameters engineParams = AlgorithmParameters.getInstance(pbeAlgorithm, BouncyCastleProvider.PROVIDER_NAME);
- engineParams.init(pbeSpec);
-
- return engineParams;
- }
- catch (Exception e)
- {
- return null;
- }
- }
- }
-
- return engineParams;
- }
-
- /**
- * should never be called.
- */
- protected void engineSetMode(
- String mode)
- {
- if (!mode.equalsIgnoreCase("ECB"))
- {
- throw new IllegalArgumentException("can't support mode " + mode);
- }
- }
-
- /**
- * should never be called.
- */
- protected void engineSetPadding(
- String padding)
- throws NoSuchPaddingException
- {
- if (!padding.equalsIgnoreCase("NoPadding"))
- {
- throw new NoSuchPaddingException("Padding " + padding + " unknown.");
- }
- }
-
- protected void engineInit(
- int opmode,
- Key key,
- AlgorithmParameterSpec params,
- SecureRandom random)
- throws InvalidKeyException, InvalidAlgorithmParameterException
- {
- CipherParameters param;
-
- this.pbeSpec = null;
- this.pbeAlgorithm = null;
-
- this.engineParams = null;
-
- //
- // basic key check
- //
- if (!(key instanceof SecretKey))
- {
- throw new InvalidKeyException("Key for algorithm " + key.getAlgorithm() + " not suitable for symmetric enryption.");
- }
-
- if (key instanceof BCPBEKey)
- {
- BCPBEKey k = (BCPBEKey)key;
-
- if (k.getOID() != null)
- {
- pbeAlgorithm = k.getOID().getId();
- }
- else
- {
- pbeAlgorithm = k.getAlgorithm();
- }
-
- if (k.getParam() != null)
- {
- param = k.getParam();
- pbeSpec = new PBEParameterSpec(k.getSalt(), k.getIterationCount());
- }
- else if (params instanceof PBEParameterSpec)
- {
- param = PBE.Util.makePBEParameters(k, params, cipher.getAlgorithmName());
- pbeSpec = (PBEParameterSpec)params;
- }
- else
- {
- throw new InvalidAlgorithmParameterException("PBE requires PBE parameters to be set.");
- }
-
- if (k.getIvSize() != 0)
- {
- ivParam = (ParametersWithIV)param;
- }
- }
- else if (params == null)
- {
- param = new KeyParameter(key.getEncoded());
- }
- else if (params instanceof IvParameterSpec)
- {
- param = new ParametersWithIV(new KeyParameter(key.getEncoded()), ((IvParameterSpec)params).getIV());
- ivParam = (ParametersWithIV)param;
- }
- else
- {
- throw new IllegalArgumentException("unknown parameter type.");
- }
-
- if ((ivLength != 0) && !(param instanceof ParametersWithIV))
- {
- SecureRandom ivRandom = random;
-
- if (ivRandom == null)
- {
- ivRandom = new SecureRandom();
- }
-
- if ((opmode == Cipher.ENCRYPT_MODE) || (opmode == Cipher.WRAP_MODE))
- {
- byte[] iv = new byte[ivLength];
-
- ivRandom.nextBytes(iv);
- param = new ParametersWithIV(param, iv);
- ivParam = (ParametersWithIV)param;
- }
- else
- {
- throw new InvalidAlgorithmParameterException("no IV set when one expected");
- }
- }
-
- switch (opmode)
- {
- case Cipher.ENCRYPT_MODE:
- case Cipher.WRAP_MODE:
- cipher.init(true, param);
- break;
- case Cipher.DECRYPT_MODE:
- case Cipher.UNWRAP_MODE:
- cipher.init(false, param);
- break;
- default:
- System.out.println("eeek!");
- }
- }
-
- protected void engineInit(
- int opmode,
- Key key,
- AlgorithmParameters params,
- SecureRandom random)
- throws InvalidKeyException, InvalidAlgorithmParameterException
- {
- AlgorithmParameterSpec paramSpec = null;
-
- if (params != null)
- {
- for (int i = 0; i != availableSpecs.length; i++)
- {
- try
- {
- paramSpec = params.getParameterSpec(availableSpecs[i]);
- break;
- }
- catch (Exception e)
- {
- continue;
- }
- }
-
- if (paramSpec == null)
- {
- throw new InvalidAlgorithmParameterException("can't handle parameter " + params.toString());
- }
- }
-
- engineInit(opmode, key, paramSpec, random);
- engineParams = params;
- }
-
- protected void engineInit(
- int opmode,
- Key key,
- SecureRandom random)
- throws InvalidKeyException
- {
- try
- {
- engineInit(opmode, key, (AlgorithmParameterSpec)null, random);
- }
- catch (InvalidAlgorithmParameterException e)
- {
- throw new InvalidKeyException(e.getMessage());
- }
- }
-
- protected byte[] engineUpdate(
- byte[] input,
- int inputOffset,
- int inputLen)
- {
- byte[] out = new byte[inputLen];
-
- cipher.processBytes(input, inputOffset, inputLen, out, 0);
-
- return out;
- }
-
- protected int engineUpdate(
- byte[] input,
- int inputOffset,
- int inputLen,
- byte[] output,
- int outputOffset)
- throws ShortBufferException
- {
- try
- {
- cipher.processBytes(input, inputOffset, inputLen, output, outputOffset);
-
- return inputLen;
- }
- catch (DataLengthException e)
- {
- throw new ShortBufferException(e.getMessage());
- }
- }
-
- protected byte[] engineDoFinal(
- byte[] input,
- int inputOffset,
- int inputLen)
- throws BadPaddingException, IllegalBlockSizeException
- {
- if (inputLen != 0)
- {
- byte[] out = engineUpdate(input, inputOffset, inputLen);
-
- cipher.reset();
-
- return out;
- }
-
- cipher.reset();
-
- return new byte[0];
- }
-
- protected int engineDoFinal(
- byte[] input,
- int inputOffset,
- int inputLen,
- byte[] output,
- int outputOffset)
- throws BadPaddingException
- {
- if (inputLen != 0)
- {
- cipher.processBytes(input, inputOffset, inputLen, output, outputOffset);
- }
-
- cipher.reset();
-
- return inputLen;
- }
-
- protected byte[] engineWrap(
- Key key)
- throws IllegalBlockSizeException, InvalidKeyException
- {
- byte[] encoded = key.getEncoded();
- if (encoded == null)
- {
- throw new InvalidKeyException("Cannot wrap key, null encoding.");
- }
-
- try
- {
- return engineDoFinal(encoded, 0, encoded.length);
- }
- catch (BadPaddingException e)
- {
- throw new IllegalBlockSizeException(e.getMessage());
- }
- }
-
- protected Key engineUnwrap(
- byte[] wrappedKey,
- String wrappedKeyAlgorithm,
- int wrappedKeyType)
- throws InvalidKeyException
- {
- byte[] encoded;
- try
- {
- encoded = engineDoFinal(wrappedKey, 0, wrappedKey.length);
- }
- catch (BadPaddingException e)
- {
- throw new InvalidKeyException(e.getMessage());
- }
- catch (IllegalBlockSizeException e2)
- {
- throw new InvalidKeyException(e2.getMessage());
- }
-
- if (wrappedKeyType == Cipher.SECRET_KEY)
- {
- return new SecretKeySpec(encoded, wrappedKeyAlgorithm);
- }
- else if (wrappedKeyAlgorithm.equals("") && wrappedKeyType == Cipher.PRIVATE_KEY)
- {
- /*
- * The caller doesn't know the algorithm as it is part of
- * the encrypted data.
- */
- try
- {
- PrivateKeyInfo in = PrivateKeyInfo.getInstance(encoded);
-
- PrivateKey privKey = BouncyCastleProvider.getPrivateKey(in);
-
- if (privKey != null)
- {
- return privKey;
- }
- else
- {
- throw new InvalidKeyException("algorithm " + in.getPrivateKeyAlgorithm().getAlgorithm() + " not supported");
- }
- }
- catch (Exception e)
- {
- throw new InvalidKeyException("Invalid key encoding.");
- }
- }
- else
- {
- try
- {
- KeyFactory kf = KeyFactory.getInstance(wrappedKeyAlgorithm, BouncyCastleProvider.PROVIDER_NAME);
-
- if (wrappedKeyType == Cipher.PUBLIC_KEY)
- {
- return kf.generatePublic(new X509EncodedKeySpec(encoded));
- }
- else if (wrappedKeyType == Cipher.PRIVATE_KEY)
- {
- return kf.generatePrivate(new PKCS8EncodedKeySpec(encoded));
- }
- }
- catch (NoSuchProviderException e)
- {
- throw new InvalidKeyException("Unknown key type " + e.getMessage());
- }
- catch (NoSuchAlgorithmException e)
- {
- throw new InvalidKeyException("Unknown key type " + e.getMessage());
- }
- catch (InvalidKeySpecException e2)
- {
- throw new InvalidKeyException("Unknown key type " + e2.getMessage());
- }
-
- throw new InvalidKeyException("Unknown key type " + wrappedKeyType);
- }
- }
-
- /*
- * The ciphers that inherit from us.
- */
-
- /**
- * DES
- */
- static public class DES_CFB8
- extends JCEStreamCipher
- {
- public DES_CFB8()
- {
- super(new CFBBlockCipher(new DESEngine(), 8), 64);
- }
- }
-
- /**
- * DESede
- */
- static public class DESede_CFB8
- extends JCEStreamCipher
- {
- public DESede_CFB8()
- {
- super(new CFBBlockCipher(new DESedeEngine(), 8), 64);
- }
- }
-
- /**
- * SKIPJACK
- */
- static public class Skipjack_CFB8
- extends JCEStreamCipher
- {
- public Skipjack_CFB8()
- {
- super(new CFBBlockCipher(new SkipjackEngine(), 8), 64);
- }
- }
-
- /**
- * Blowfish
- */
- static public class Blowfish_CFB8
- extends JCEStreamCipher
- {
- public Blowfish_CFB8()
- {
- super(new CFBBlockCipher(new BlowfishEngine(), 8), 64);
- }
- }
-
- /**
- * Twofish
- */
- static public class Twofish_CFB8
- extends JCEStreamCipher
- {
- public Twofish_CFB8()
- {
- super(new CFBBlockCipher(new TwofishEngine(), 8), 128);
- }
- }
-
- /**
- * DES
- */
- static public class DES_OFB8
- extends JCEStreamCipher
- {
- public DES_OFB8()
- {
- super(new OFBBlockCipher(new DESEngine(), 8), 64);
- }
- }
-
- /**
- * DESede
- */
- static public class DESede_OFB8
- extends JCEStreamCipher
- {
- public DESede_OFB8()
- {
- super(new OFBBlockCipher(new DESedeEngine(), 8), 64);
- }
- }
-
- /**
- * SKIPJACK
- */
- static public class Skipjack_OFB8
- extends JCEStreamCipher
- {
- public Skipjack_OFB8()
- {
- super(new OFBBlockCipher(new SkipjackEngine(), 8), 64);
- }
- }
-
- /**
- * Blowfish
- */
- static public class Blowfish_OFB8
- extends JCEStreamCipher
- {
- public Blowfish_OFB8()
- {
- super(new OFBBlockCipher(new BlowfishEngine(), 8), 64);
- }
- }
-
- /**
- * Twofish
- */
- static public class Twofish_OFB8
- extends JCEStreamCipher
- {
- public Twofish_OFB8()
- {
- super(new OFBBlockCipher(new TwofishEngine(), 8), 128);
- }
- }
-}
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