Example usage for org.bouncycastle.crypto.engines DESedeEngine DESedeEngine

List of usage examples for org.bouncycastle.crypto.engines DESedeEngine DESedeEngine

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Introduction

In this page you can find the example usage for org.bouncycastle.crypto.engines DESedeEngine DESedeEngine.

Prototype

public DESedeEngine()

Source Link

Document

standard constructor.

Usage

From source file:com.licel.jcardsim.crypto.SymmetricKeyImpl.java

License:Apache License

/**
 * Return the BouncyCastle <code>BlockCipher</code> for using with this key
 * @return <code>BlockCipher</code> for this key, or null for HMACKey
 * @throws CryptoException if key not initialized
 * @see BlockCipher//from   ww w  . j a  v a2  s. c om
 */
public BlockCipher getCipher() throws CryptoException {
    if (!key.isInitialized()) {
        CryptoException.throwIt(CryptoException.UNINITIALIZED_KEY);
    }
    BlockCipher cipher = null;
    switch (type) {
    case KeyBuilder.TYPE_DES:
    case KeyBuilder.TYPE_DES_TRANSIENT_DESELECT:
    case KeyBuilder.TYPE_DES_TRANSIENT_RESET:
        if (size == KeyBuilder.LENGTH_DES) {
            cipher = new DESEngine();
        }
        if (size == KeyBuilder.LENGTH_DES3_2KEY || size == KeyBuilder.LENGTH_DES3_3KEY) {
            cipher = new DESedeEngine();
        }
        break;
    case KeyBuilder.TYPE_AES:
    case KeyBuilder.TYPE_AES_TRANSIENT_DESELECT:
    case KeyBuilder.TYPE_AES_TRANSIENT_RESET:
        cipher = new AESEngine();
        break;
    }
    return cipher;
}

From source file:com.oneops.cms.crypto.CmsCryptoDES.java

License:Apache License

/**
 * Encrypt./*from   w w  w  . j  a  va2 s  . com*/
 *
 * @param instr the instr
 * @return the string
 * @throws java.security.GeneralSecurityException the general security exception
 */
@Override
public String encrypt(String instr) throws GeneralSecurityException {
    long t1 = System.currentTimeMillis();
    byte[] in = instr.getBytes();
    PaddedBufferedBlockCipher encryptor = new PaddedBufferedBlockCipher(new CBCBlockCipher(new DESedeEngine()));
    encryptor.init(true, keyParameter);
    byte[] cipherText = new byte[encryptor.getOutputSize(in.length)];
    int outputLen = encryptor.processBytes(in, 0, in.length, cipherText, 0);
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    try {
        encryptor.doFinal(cipherText, outputLen);
        Hex.encode(cipherText, os);
    } catch (Exception e) {
        e.printStackTrace();
        throw new GeneralSecurityException(e);
    }
    long t2 = System.currentTimeMillis();
    logger.debug("Time taken to encrypt(millis) :" + (t2 - t1));
    return ENC_PREFIX + os.toString();
}

From source file:com.oneops.cms.crypto.CmsCryptoDES.java

License:Apache License

private String decryptStr(String instr) throws GeneralSecurityException {
    if (StringUtils.isEmpty(instr)) {
        return instr;
    }/*  w  w w.  j a v  a  2  s. c o m*/
    long t1 = System.currentTimeMillis();
    PaddedBufferedBlockCipher decryptor = new PaddedBufferedBlockCipher(new CBCBlockCipher(new DESedeEngine()));
    decryptor.init(false, keyParameter);
    byte[] in = null;
    byte[] cipherText = null;

    try {
        in = Hex.decode(instr);
        cipherText = new byte[decryptor.getOutputSize(in.length)];

        int outputLen = decryptor.processBytes(in, 0, in.length, cipherText, 0);
        decryptor.doFinal(cipherText, outputLen);
    } catch (Exception e) {
        throw new GeneralSecurityException(e);
    }
    long t2 = System.currentTimeMillis();
    logger.debug("Time taken to decrypt(millis) : " + (t2 - t1));
    return (new String(cipherText)).replaceAll("\\u0000+$", "");
}

From source file:com.zotoh.crypto.BCOfuscator.java

License:Open Source License

private String decrypt(String encrypted) throws Exception {
    if (isEmpty(encrypted)) {
        return encrypted;
    }/*from  www .  ja v  a  2  s.co m*/
    PaddedBufferedBlockCipher cipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new DESedeEngine()));
    byte[] p = Base64.decodeBase64(encrypted), out = new byte[1024];
    ByteOStream baos = new ByteOStream();
    int c;

    // initialise the cipher with the key bytes, for encryption
    cipher.init(false, new KeyParameter(getKey()));
    c = cipher.processBytes(p, 0, p.length, out, 0);
    if (c > 0) {
        baos.write(out, 0, c);
    }

    c = cipher.doFinal(out, 0);
    if (c > 0) {
        baos.write(out, 0, c);
    }

    return asString(baos.asBytes());
}

From source file:com.zotoh.crypto.BCOfuscator.java

License:Open Source License

private String encrypt(String clearText) throws Exception {
    if (isEmpty(clearText)) {
        return clearText;
    }//  w  w w.  j  a  v  a 2  s  .  c  o m
    PaddedBufferedBlockCipher cipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new DESedeEngine()));
    ByteOStream baos = new ByteOStream();
    byte[] p = asBytes(clearText), out = new byte[4096];
    int c;

    // initialise the cipher with the key bytes, for encryption
    cipher.init(true, new KeyParameter(getKey()));
    c = cipher.processBytes(p, 0, p.length, out, 0);
    if (c > 0) {
        baos.write(out, 0, c);
    }

    c = cipher.doFinal(out, 0);
    if (c > 0) {
        baos.write(out, 0, c);
    }

    return Base64.encodeBase64String(baos.asBytes());
}

From source file:de.carne.certmgr.store.provider.bouncycastle.BouncyCastleStoreProvider.java

License:Open Source License

@Override
public byte[] encodePKCS12(X509Certificate[] crtChain, KeyPair key, PKCS10Object csr, X509CRL crl,
        PasswordCallback password, String resource) throws IOException, PasswordRequiredException {
    String passwordInput = (password != null ? password.queryPassword(resource) : null);

    if (password != null && passwordInput == null) {
        throw new PasswordRequiredException("Password input cancelled while writing PKCS#12 file");
    }/*from  www.jav a  2  s  .  c  om*/

    PKCS12SafeBagBuilder[] crtBagBuilders = new PKCS12SafeBagBuilder[crtChain != null ? crtChain.length : 0];
    DERBMPString crt0FriendlyName = null;
    SubjectKeyIdentifier subjectKeyIdentifier = null;

    if (crtChain != null) {
        int crtIndex = 0;

        for (X509Certificate crt : crtChain) {
            PKCS12SafeBagBuilder crtBagBuilder = crtBagBuilders[crtIndex] = new JcaPKCS12SafeBagBuilder(crt);
            DERBMPString crtFriendlyName = new DERBMPString(crt.getSubjectX500Principal().toString());

            crtBagBuilder.addBagAttribute(PKCSObjectIdentifiers.pkcs_9_at_friendlyName, crtFriendlyName);
            if (crtIndex == 0) {
                crt0FriendlyName = crtFriendlyName;
                try {
                    JcaX509ExtensionUtils extensionUtils = new JcaX509ExtensionUtils();

                    subjectKeyIdentifier = extensionUtils.createSubjectKeyIdentifier(crt.getPublicKey());
                } catch (NoSuchAlgorithmException e) {
                    throw new StoreProviderException(e);
                }
            }
            crtIndex++;
        }
    }

    PKCS12SafeBagBuilder keyBagBuilder = null;

    if (key != null) {
        if (passwordInput != null) {
            BcPKCS12PBEOutputEncryptorBuilder keyBagEncryptorBuilder = new BcPKCS12PBEOutputEncryptorBuilder(
                    PKCSObjectIdentifiers.pbeWithSHAAnd3_KeyTripleDES_CBC,
                    new CBCBlockCipher(new DESedeEngine()));
            OutputEncryptor keyBagEncrypter = keyBagEncryptorBuilder.build(passwordInput.toCharArray());

            keyBagBuilder = new JcaPKCS12SafeBagBuilder(key.getPrivate(), keyBagEncrypter);
        } else {
            keyBagBuilder = new JcaPKCS12SafeBagBuilder(key.getPrivate());
        }
        if (crtBagBuilders.length > 0) {
            crtBagBuilders[0].addBagAttribute(PKCSObjectIdentifiers.pkcs_9_at_localKeyId, subjectKeyIdentifier);
            keyBagBuilder.addBagAttribute(PKCSObjectIdentifiers.pkcs_9_at_localKeyId, subjectKeyIdentifier);
            keyBagBuilder.addBagAttribute(PKCSObjectIdentifiers.pkcs_9_at_friendlyName, crt0FriendlyName);
        }
    }

    PKCS12SafeBag[] crtBags = new PKCS12SafeBag[crtBagBuilders.length];
    int crtBagIndex = 0;

    for (PKCS12SafeBagBuilder crtBagBuilder : crtBagBuilders) {
        crtBags[crtBagIndex] = crtBagBuilder.build();
        crtBagIndex++;
    }

    PKCS12PfxPduBuilder pkcs12Builder = new PKCS12PfxPduBuilder();

    if (passwordInput != null) {
        BcPKCS12PBEOutputEncryptorBuilder crtBagEncryptorBuilder = new BcPKCS12PBEOutputEncryptorBuilder(
                PKCSObjectIdentifiers.pbeWithSHAAnd40BitRC2_CBC, new CBCBlockCipher(new RC2Engine()));
        OutputEncryptor crtBagEncryptor = crtBagEncryptorBuilder.build(passwordInput.toCharArray());

        pkcs12Builder.addEncryptedData(crtBagEncryptor, crtBags);
    } else {
        for (PKCS12SafeBag crtBag : crtBags) {
            pkcs12Builder.addData(crtBag);
        }
    }
    if (keyBagBuilder != null) {
        pkcs12Builder.addData(keyBagBuilder.build());
    }

    PKCS12PfxPdu pkcs12;

    try {
        if (passwordInput != null) {
            pkcs12 = pkcs12Builder.build(new BcPKCS12MacCalculatorBuilder(), passwordInput.toCharArray());
        } else {
            pkcs12 = pkcs12Builder.build(null, null);
        }
    } catch (PKCSException e) {
        throw new StoreProviderException(e);
    }
    return pkcs12.getEncoded();
}

From source file:de.tsenger.animamea.crypto.AmDESCrypto.java

License:Open Source License

private void initCiphers(byte[] key, byte[] iv) {
    // get the keyBytes
    keyBytes = new byte[key.length];
    System.arraycopy(key, 0, keyBytes, 0, key.length);

    // get the IV
    IV = new byte[blockSize];
    System.arraycopy(iv, 0, IV, 0, iv.length);

    keyP = new KeyParameter(keyBytes);

    encryptCipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new DESedeEngine()),
            new ISO7816d4Padding());
    decryptCipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new DESedeEngine()),
            new ISO7816d4Padding());

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

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

From source file:de.tsenger.animamea.crypto.AmDESCrypto.java

License:Open Source License

/**
 * Dekodiert einen Block mit DES/*from  w w  w  .  j a  va2  s  .  c  o m*/
 * 
 * @param key
 *            Byte-Array enthlt den 3DES-Schlssel
 * @param z
 *            verschlsselter Block
 * @return entschlsselter block
 */
@Override
public byte[] decryptBlock(byte[] key, byte[] z) {
    byte[] s = new byte[16];
    KeyParameter encKey = new KeyParameter(key);
    BlockCipher cipher = new DESedeEngine();
    cipher.init(false, encKey);
    cipher.processBlock(z, 0, s, 0);
    return s;
}

From source file:edu.biu.scapi.primitives.prf.bc.BcTripleDES.java

License:Open Source License

/**
 * Passes the DesedeEngine of BC to the abstract super class
 */
public BcTripleDES() {

    super(new DESedeEngine());
}

From source file:edu.biu.scapi.primitives.prf.bc.BcTripleDES.java

License:Open Source License

/**
 * Receives random object to use./*w  w w. j a  v  a 2  s .  c  om*/
 * Passes it and the DesedeEngine of BC to the abstract super class.
 * @param random SecureRandom to use
 */
public BcTripleDES(SecureRandom random) {

    super(new DESedeEngine(), random);
}