org.bouncycastle.openpgp.operator.PBESecretKeyDecryptor.java Source code

Introduction

Here is the source code for org.bouncycastle.openpgp.operator.PBESecretKeyDecryptor.java

Source

package org.bouncycastle.openpgp.operator;

import org.bouncycastle.bcpg.S2K;
import org.bouncycastle.openpgp.PGPException;

public abstract class PBESecretKeyDecryptor {
    private char[] passPhrase;
    private PGPDigestCalculatorProvider calculatorProvider;

    protected PBESecretKeyDecryptor(char[] passPhrase, PGPDigestCalculatorProvider calculatorProvider) {
        this.passPhrase = passPhrase;
        this.calculatorProvider = calculatorProvider;
    }

    public PGPDigestCalculator getChecksumCalculator(int hashAlgorithm) throws PGPException {
        return calculatorProvider.get(hashAlgorithm);
    }

    public byte[] makeKeyFromPassPhrase(int keyAlgorithm, S2K s2k) throws PGPException {
        return PGPUtil.makeKeyFromPassPhrase(calculatorProvider, keyAlgorithm, s2k, passPhrase);
    }

    public abstract byte[] recoverKeyData(int encAlgorithm, byte[] key, byte[] iv, byte[] keyData, int keyOff,
            int keyLen) throws PGPException;
}