Example usage for org.bouncycastle.crypto.generators PKCS5S1ParametersGenerator init

Introduction

In this page you can find the example usage for org.bouncycastle.crypto.generators PKCS5S1ParametersGenerator init.

Prototype

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

Source Link

Document

initialise the PBE generator.

Usage

From source file:com.giacomodrago.immediatecrypt.aes.AESFacadeImpl.java

License:Open Source License

protected ParametersWithIV createDecryptionParameters(String password, String salt, byte[] iv) {

    byte[] passwordBytes = password.getBytes(Charsets.UTF_8);
    byte[] saltBytes = salt.getBytes(Charsets.UTF_8);

    PKCS5S1ParametersGenerator keyGenerator = new PKCS5S1ParametersGenerator(new SHA512Digest());
    keyGenerator.init(passwordBytes, saltBytes, PBE_ITERATION_COUNT);

    KeyParameter params = (KeyParameter) keyGenerator.generateDerivedParameters(KEY_SIZE);

    return new ParametersWithIV(params, iv);

}

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From source file:com.giacomodrago.immediatecrypt.aes.AESFacadeImpl.java

License:Open Source License

protected ParametersWithIV createEncryptionParameters(String password, String salt) {

    byte[] passwordBytes = password.getBytes(Charsets.UTF_8);
    byte[] saltBytes = salt.getBytes(Charsets.UTF_8);

    PKCS5S1ParametersGenerator keyGenerator = new PKCS5S1ParametersGenerator(new SHA512Digest());
    keyGenerator.init(passwordBytes, saltBytes, PBE_ITERATION_COUNT);

    ParametersWithIV params = (ParametersWithIV) keyGenerator.generateDerivedParameters(KEY_SIZE, IV_SIZE);

    return params;

}

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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 ww w  . jav a  2  s. com*/
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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