Example usage for org.bouncycastle.crypto PBEParametersGenerator PKCS5PasswordToUTF8Bytes

Introduction

In this page you can find the example usage for org.bouncycastle.crypto PBEParametersGenerator PKCS5PasswordToUTF8Bytes.

Prototype

public static byte[] PKCS5PasswordToUTF8Bytes(char[] password) 

Source Link

Document

converts a password to a byte array according to the scheme in PKCS5 (UTF-8, no padding)

Usage

From source file:bit.changepurse.wdk.bip.MnemonicService.java

License:Mozilla Public License

private PBEKeySpec createPBESpec(String mnemonic, String passphrase) {
    char[] password = mnemonic.toCharArray();
    byte[] salt = PBEParametersGenerator.PKCS5PasswordToUTF8Bytes(passphrase.toCharArray());

    PBEKeySpec spec = new PBEKeySpec(password, salt, ITERATION_COUNT, DERIVED_KEY_SIZE);
    return spec;//from  w  ww.  j a  va 2 s  .  co m
}

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From source file:de.gs_sys.basics.crypto.hmac.PBKDF.java

License:Open Source License

public static byte[] bytePBKDF(String pas, int iterations) {
    if (pas == null)
        return null;

    PKCS5S2ParametersGenerator generator = new PKCS5S2ParametersGenerator();

    // uses PKCS#5 standard
    generator.init(PBEParametersGenerator.PKCS5PasswordToUTF8Bytes(pas.toCharArray()), SALT, iterations);

    // Generate Key 32 chars at 8 bit so total 256 bit
    KeyParameter key = (KeyParameter) generator.generateDerivedMacParameters(KeyBitSize);

    return key.getKey();
}

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From source file:de.gs_sys.basics.crypto.hmac.PBKDF.java

License:Open Source License

public static byte[] bigPBKDF(String pas, int iterations, int KeyBitSize) {
    if (pas == null)
        return null;

    PKCS5S2ParametersGenerator generator = new PKCS5S2ParametersGenerator();

    // uses PKCS#5 standard
    generator.init(PBEParametersGenerator.PKCS5PasswordToUTF8Bytes(pas.toCharArray()), SALT, iterations);

    // Generate Key 32 chars at 8 bit so total 256 bit
    KeyParameter key = (KeyParameter) generator.generateDerivedMacParameters(KeyBitSize);

    return key.getKey();
}

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From source file:edu.tamu.tcat.crypto.bouncycastle.PBKDF2Impl.java

License:Apache License

@Override
public byte[] passwordToBytes(String password) {
    return PBEParametersGenerator.PKCS5PasswordToUTF8Bytes(password.toCharArray());
}

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From source file:org.cryptacular.pbe.OpenSSLEncryptionScheme.java

License:Open Source License

/**
 * Creates a new instance using the given parameters.
 *
 * @param  cipher  Buffered block cipher algorithm.
 * @param  salt  Salt data for key generation function.
 * @param  keyBitLength  Size of derived keys in bits.
 * @param  password  Password used to derive key.
 *//*w  w  w. j a va2s .c  o m*/
public OpenSSLEncryptionScheme(final BufferedBlockCipher cipher, final byte[] salt, final int keyBitLength,
        final char[] password) {
    final OpenSSLPBEParametersGenerator generator = new OpenSSLPBEParametersGenerator();
    generator.init(PBEParametersGenerator.PKCS5PasswordToUTF8Bytes(password), salt);
    setCipher(cipher);
    setCipherParameters(generator.generateDerivedParameters(keyBitLength));
}

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From source file:org.cryptacular.pbe.OpenSSLEncryptionScheme.java

License:Open Source License

/**
 * Creates a new instance from an algorithm and salt data.
 *
 * @param  algorithm  OpenSSL key encryption algorithm.
 * @param  iv  Explicit IV; first 8 bytes also used for salt in PBE key
 *             generation./*  w  w w  .  j  a v a2  s .  c  om*/
 * @param  password  Password used to derive key.
 */
public OpenSSLEncryptionScheme(final OpenSSLAlgorithm algorithm, final byte[] iv, final char[] password) {
    byte[] salt = iv;
    if (iv.length > 8) {
        salt = new byte[8];
        System.arraycopy(iv, 0, salt, 0, 8);
    }

    final OpenSSLPBEParametersGenerator generator = new OpenSSLPBEParametersGenerator();
    generator.init(PBEParametersGenerator.PKCS5PasswordToUTF8Bytes(password), salt);
    setCipher(algorithm.getCipherSpec().newInstance());
    setCipherParameters(new ParametersWithIV(
            generator.generateDerivedParameters(algorithm.getCipherSpec().getKeyLength()), iv));
}

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From source file:org.cryptacular.pbe.PBES1EncryptionScheme.java

License:Open Source License

/**
 * Creates a new instance with the given parameters.
 *
 * @param  alg  Describes hash/algorithm pair suitable for PBES1 scheme.
 * @param  params  Key generation function salt and iteration count.
 * @param  password  Password used to derive key.
 *//*from   w w  w . j  a  va  2 s.c om*/
public PBES1EncryptionScheme(final PBES1Algorithm alg, final PBEParameter params, final char[] password) {
    final byte[] salt = params.getSalt();
    final int iterations = params.getIterationCount().intValue();
    final PKCS5S1ParametersGenerator generator = new PKCS5S1ParametersGenerator(
            alg.getDigestSpec().newInstance());
    generator.init(PBEParametersGenerator.PKCS5PasswordToUTF8Bytes(password), salt, iterations);
    setCipher(alg.getCipherSpec().newInstance());
    setCipherParameters(generator.generateDerivedParameters(KEY_LENGTH, IV_LENGTH));
}

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From source file:org.cryptacular.pbe.PBES2EncryptionScheme.java

License:Open Source License

/**
 * Creates a new instance with the given parameters.
 *
 * @param  params  PBES2 parameters describing the key derivation function and
 *                 encryption scheme./*from   w  ww .j  a  v a 2s.  c  o m*/
 * @param  password  Password used to derive key.
 */
public PBES2EncryptionScheme(final PBES2Parameters params, final char[] password) {
    final PBKDF2Params kdfParams = PBKDF2Params.getInstance(params.getKeyDerivationFunc().getParameters());
    final byte[] salt = kdfParams.getSalt();
    final int iterations = kdfParams.getIterationCount().intValue();
    if (kdfParams.getKeyLength() != null) {
        keyLength = kdfParams.getKeyLength().intValue() * 8;
    }

    final PKCS5S2ParametersGenerator generator = new PKCS5S2ParametersGenerator();
    generator.init(PBEParametersGenerator.PKCS5PasswordToUTF8Bytes(password), salt, iterations);
    initCipher(generator, params.getEncryptionScheme());
}

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From source file:org.springframework.security.crypto.encrypt.BouncyCastleAesBytesEncryptor.java

License:Apache License

BouncyCastleAesBytesEncryptor(String password, CharSequence salt, BytesKeyGenerator ivGenerator) {
    if (ivGenerator.getKeyLength() != 16) {
        throw new IllegalArgumentException("ivGenerator key length != block size 16");
    }//from  w  w  w. j  av a 2 s.c o m
    this.ivGenerator = ivGenerator;
    PBEParametersGenerator keyGenerator = new PKCS5S2ParametersGenerator();
    byte[] pkcs12PasswordBytes = PBEParametersGenerator.PKCS5PasswordToUTF8Bytes(password.toCharArray());
    keyGenerator.init(pkcs12PasswordBytes, Hex.decode(salt), 1024);
    this.secretKey = (KeyParameter) keyGenerator.generateDerivedParameters(256);
}

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From source file:org.xwiki.crypto.password.PasswordToByteConverter.java

License:Open Source License

/**
 * Convert password to bytes./*www .java 2 s .  c om*/
 *
 * @param password password to convert.
 * @param mode mode of conversion.
 * @return a bytes array representing the password.
 */
public static byte[] convert(char[] password, ToBytesMode mode) {
    byte[] passwd;

    switch (mode) {
    case PKCS12:
        passwd = PBEParametersGenerator.PKCS12PasswordToBytes(password);
        break;
    case PKCS5:
        passwd = PBEParametersGenerator.PKCS5PasswordToBytes(password);
        break;
    default:
        passwd = PBEParametersGenerator.PKCS5PasswordToUTF8Bytes(password);
        break;
    }

    return passwd;
}

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