Example usage for org.bouncycastle.asn1.pkcs PBEParameter getIterationCount

Introduction

In this page you can find the example usage for org.bouncycastle.asn1.pkcs PBEParameter getIterationCount.

Prototype

public BigInteger getIterationCount() 

Source Link

Usage

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 www .j  a  va  2s .  co m*/
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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