org.bouncycastle.tls.crypto.impl.jcajce.JcaTls13Verifier Maven / Gradle / Ivy

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The Bouncy Castle Java APIs for the TLS, including a JSSE provider. The APIs are designed primarily to be used in conjunction with the BC FIPS provider. The APIs may also be used with other providers although if being used in a FIPS context it is the responsibility of the user to ensure that any other providers used are FIPS certified and used appropriately.

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package org.bouncycastle.tls.crypto.impl.jcajce;

import java.io.IOException;
import java.io.OutputStream;
import java.security.Signature;
import java.security.SignatureException;

import org.bouncycastle.tls.AlertDescription;
import org.bouncycastle.tls.TlsFatalAlert;
import org.bouncycastle.tls.crypto.Tls13Verifier;

final class JcaTls13Verifier
    implements Tls13Verifier
{
    private final Signature verifier;
    private final OutputStream output;

    JcaTls13Verifier(Signature verifier)
    {
        this.verifier = verifier;
        this.output = OutputStreamFactory.createStream(verifier);
    }

    public final OutputStream getOutputStream() throws IOException
    {
        return output;
    }

    public final boolean verifySignature(byte[] signature) throws IOException
    {
        try
        {
            return verifier.verify(signature);
        }
        catch (SignatureException e)
        {
            throw new TlsFatalAlert(AlertDescription.internal_error, e);
        }
    }
}