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The Bouncy Castle Java CMS and S/MIME APIs for handling the CMS and S/MIME protocols. This jar contains CMS and S/MIME APIs for JDK 1.6. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs. If the S/MIME API is used, the JavaMail API and the Java activation framework will also be needed.

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package org.bouncycastle.cms;

import org.bouncycastle.crypto.PBEParametersGenerator;
import org.bouncycastle.crypto.generators.PKCS5S2ParametersGenerator;
import org.bouncycastle.crypto.params.KeyParameter;

public class PKCS5Scheme2PBEKey
    extends CMSPBEKey
{
    public PKCS5Scheme2PBEKey(char[] password, byte[] salt, int iterationCount)
    {
        super(password, salt, iterationCount);
    }

    byte[] getEncoded(String algorithmOid)
    {
        PKCS5S2ParametersGenerator gen = new PKCS5S2ParametersGenerator();

        gen.init(PBEParametersGenerator.PKCS5PasswordToBytes(this.getPassword()), this.getSalt(), this.getIterationCount());

        return ((KeyParameter)gen.generateDerivedParameters(CMSEnvelopedHelper.INSTANCE.getKeySize(algorithmOid))).getKey();
    }
}