List of usage examples for org.bouncycastle.asn1.pkcs PKCSObjectIdentifiers RC2_CBC
ASN1ObjectIdentifier RC2_CBC
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From source file:org.jruby.ext.openssl.x509store.PEMInputOutput.java
License:LGPL
private static PrivateKey derivePrivateKeyPBES2(EncryptedPrivateKeyInfo eIn, AlgorithmIdentifier algId, char[] password) throws GeneralSecurityException, InvalidCipherTextException { PBES2Parameters pbeParams = PBES2Parameters.getInstance((ASN1Sequence) algId.getParameters()); CipherParameters cipherParams = extractPBES2CipherParams(password, pbeParams); EncryptionScheme scheme = pbeParams.getEncryptionScheme(); BufferedBlockCipher cipher;/*from w w w. j a v a2 s. c om*/ if (scheme.getAlgorithm().equals(PKCSObjectIdentifiers.RC2_CBC)) { RC2CBCParameter rc2Params = RC2CBCParameter.getInstance(scheme); byte[] iv = rc2Params.getIV(); CipherParameters param = new ParametersWithIV(cipherParams, iv); cipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new RC2Engine())); cipher.init(false, param); } else { byte[] iv = ((ASN1OctetString) scheme.getObject()).getOctets(); // this version, done for BC 1.49 compat, caused #1238. // byte[] iv = ASN1OctetString.getInstance(scheme).getOctets(); CipherParameters param = new ParametersWithIV(cipherParams, iv); cipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new DESedeEngine())); cipher.init(false, param); } byte[] data = eIn.getEncryptedData(); byte[] out = new byte[cipher.getOutputSize(data.length)]; int len = cipher.processBytes(data, 0, data.length, out, 0); len += cipher.doFinal(out, len); byte[] pkcs8 = new byte[len]; System.arraycopy(out, 0, pkcs8, 0, len); KeyFactory fact = KeyFactory.getInstance("RSA"); // It seems to work for both RSA and DSA. return fact.generatePrivate(new PKCS8EncodedKeySpec(pkcs8)); }
From source file:org.xwiki.crypto.password.internal.pbe.factory.BcPBES2Rc2CipherFactory.java
License:Open Source License
@Override protected PasswordBasedCipher getPasswordBasedCipher(boolean forEncryption, KeyDerivationFunction kdf, SymmetricCipherParameters params) { return new AbstractBcPBES2Cipher(getCipherFactory().getInstance(forEncryption, params), kdf, params) { @Override//from w w w.jav a2 s . c om protected EncryptionScheme getScheme(SymmetricCipherParameters parameters) { return new EncryptionScheme(PKCSObjectIdentifiers.RC2_CBC, new RC2CBCParameter(getRC2Version((KeyWithIVParameters) parameters), ((KeyWithIVParameters) parameters).getIV())); } }; }