org.spongycastle.cms.bc.BcRSASignerInfoVerifierBuilder Maven / Gradle / Ivy

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Spongy Castle is a package-rename (org.bouncycastle.* to org.spongycastle.*) of Bouncy Castle intended for Android. Android ships with a stripped-down version of Bouncy Castle - this causes classloader collisions if you try to add an alternative (updated/complete) Bouncy Castle jar. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5.

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package org.spongycastle.cms.bc;

import java.security.cert.CertificateException;

import org.spongycastle.cert.X509CertificateHolder;
import org.spongycastle.cms.SignerInformationVerifier;
import org.spongycastle.crypto.params.AsymmetricKeyParameter;
import org.spongycastle.operator.DigestAlgorithmIdentifierFinder;
import org.spongycastle.operator.DigestCalculatorProvider;
import org.spongycastle.operator.OperatorCreationException;
import org.spongycastle.operator.bc.BcRSAContentVerifierProviderBuilder;

public class BcRSASignerInfoVerifierBuilder
{
    private BcRSAContentVerifierProviderBuilder contentVerifierProviderBuilder;
    private DigestCalculatorProvider digestCalculatorProvider;

    public BcRSASignerInfoVerifierBuilder(DigestAlgorithmIdentifierFinder digestAlgorithmFinder, DigestCalculatorProvider digestCalculatorProvider)
    {
        this.contentVerifierProviderBuilder = new BcRSAContentVerifierProviderBuilder(digestAlgorithmFinder);
        this.digestCalculatorProvider = digestCalculatorProvider;
    }

    public SignerInformationVerifier build(X509CertificateHolder certHolder)
        throws OperatorCreationException, CertificateException
    {
        return new SignerInformationVerifier(contentVerifierProviderBuilder.build(certHolder), digestCalculatorProvider);
    }

    public SignerInformationVerifier build(AsymmetricKeyParameter pubKey)
        throws OperatorCreationException
    {
        return new SignerInformationVerifier(contentVerifierProviderBuilder.build(pubKey), digestCalculatorProvider);
    }
}