Example usage for org.bouncycastle.crypto.generators PKCS12ParametersGenerator init

Introduction

In this page you can find the example usage for org.bouncycastle.crypto.generators PKCS12ParametersGenerator init.

Prototype

public void init(byte[] password, byte[] salt, int iterationCount) 

Source Link

Document

initialise the PBE generator.

Usage

From source file:GenTestDKs.java

License:Open Source License

private static void testKey(PKCS12ParametersGenerator pgen, int keyLen, int iterCount, String password,
        byte[] salt) {
    System.out.println("key len = " + keyLen + ", iter count = " + iterCount + ", password = \"" + password
            + "\", salt len = " + salt.length);

    char[] pwChars = password.toCharArray();
    byte[] pwBytes = PBEParametersGenerator.PKCS12PasswordToBytes(pwChars);

    pgen.init(pwBytes, salt, iterCount);
    KeyParameter kp = (KeyParameter) pgen.generateDerivedParameters(keyLen);
    printByteArray(kp.getKey());//from  w w w.  ja va  2  s  .com
}

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From source file:org.cesecore.util.StringTools.java

License:Open Source License

public static String pbeEncryptStringWithSha256Aes192(final String in)
        throws NoSuchAlgorithmException, NoSuchProviderException, NoSuchPaddingException, InvalidKeyException,
        InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException,
        UnsupportedEncodingException {
    CryptoProviderTools.installBCProviderIfNotAvailable();
    if (CryptoProviderTools.isUsingExportableCryptography()) {
        log.warn("Obfuscation not possible due to weak crypto policy.");
        return in;
    }/*from w ww .  j av a2 s.  c o  m*/
    final Digest digest = new SHA256Digest();

    final PKCS12ParametersGenerator pGen = new PKCS12ParametersGenerator(digest);
    pGen.init(PBEParametersGenerator.PKCS12PasswordToBytes(p), getSalt(), iCount);

    final ParametersWithIV params = (ParametersWithIV) pGen.generateDerivedParameters(192, 128);
    final SecretKeySpec encKey = new SecretKeySpec(((KeyParameter) params.getParameters()).getKey(), "AES");
    final Cipher c;
    c = Cipher.getInstance("AES/CBC/PKCS7Padding", "BC");
    c.init(Cipher.ENCRYPT_MODE, encKey, new IvParameterSpec(params.getIV()));

    final byte[] enc = c.doFinal(in.getBytes("UTF-8"));

    final byte[] hex = Hex.encode(enc);
    return new String(hex);
}

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From source file:org.ejbca.util.StringTools.java

License:Open Source License

public static String pbeEncryptStringWithSha256Aes192(final String in)
        throws NoSuchAlgorithmException, NoSuchProviderException, NoSuchPaddingException, InvalidKeyException,
        InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException,
        UnsupportedEncodingException {
    if (CryptoProviderTools.isUsingExportableCryptography()) {
        log.warn("Obfuscation not possible due to weak crypto policy.");
        return in;
    }//from w w w.j  a  v  a 2 s. c o  m
    final Digest digest = new SHA256Digest();

    final PKCS12ParametersGenerator pGen = new PKCS12ParametersGenerator(digest);
    pGen.init(PBEParametersGenerator.PKCS12PasswordToBytes(p), getSalt(), iCount);

    final ParametersWithIV params = (ParametersWithIV) pGen.generateDerivedParameters(192, 128);
    final SecretKeySpec encKey = new SecretKeySpec(((KeyParameter) params.getParameters()).getKey(), "AES");
    final Cipher c;
    c = Cipher.getInstance("AES/CBC/PKCS7Padding", "BC");
    c.init(Cipher.ENCRYPT_MODE, encKey, new IvParameterSpec(params.getIV()));

    final byte[] enc = c.doFinal(in.getBytes("UTF-8"));

    final byte[] hex = Hex.encode(enc);
    return new String(hex);
}

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From source file:org.xmind.core.internal.security.BouncyCastleSecurityProvider.java

License:Open Source License

private BufferedBlockCipher createCipher(boolean encrypt, IEncryptionData encData, String password)
        throws CoreException {
    checkEncryptionData(encData);/*w ww . j a v a 2s. c om*/

    // Create a parameter generator
    PKCS12ParametersGenerator paramGen = new PKCS12ParametersGenerator(new MD5Digest());

    // Get the password bytes
    byte[] pwBytes = password == null ? new byte[0]
            : PBEParametersGenerator.PKCS12PasswordToBytes(password.toCharArray());

    // Initialize the parameter generator with password bytes, 
    // salt and iteration counts
    paramGen.init(pwBytes, getSalt(encData), getIterationCount(encData));

    // Generate a parameter
    CipherParameters param = paramGen.generateDerivedParameters(128);

    // Create a block cipher
    BufferedBlockCipher cipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new AESEngine()));

    // Initialize the block cipher
    cipher.init(encrypt, param);
    return cipher;
}

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