org.bouncycastle.crypto.general.GuardedDigestOperatorFactory Maven / Gradle / Ivy

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The FIPS 140-2 Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms certified to FIPS 140-2 level 1. This jar contains the debug version JCE provider and low-level API for the BC-FJA version 1.0.2.3, FIPS Certificate #3514. Please note the debug jar is not certified.

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package org.bouncycastle.crypto.general;

import org.bouncycastle.crypto.CryptoServicesRegistrar;
import org.bouncycastle.crypto.DigestOperatorFactory;
import org.bouncycastle.crypto.OutputDigestCalculator;
import org.bouncycastle.crypto.Parameters;
import org.bouncycastle.crypto.fips.FipsStatus;
import org.bouncycastle.crypto.fips.FipsUnapprovedOperationError;

abstract class GuardedDigestOperatorFactory
    implements DigestOperatorFactory
{
    // package protect constructor
    GuardedDigestOperatorFactory()
    {
        FipsStatus.isReady();
        if (CryptoServicesRegistrar.isInApprovedOnlyMode())
        {
            throw new FipsUnapprovedOperationError("Attempt to create unapproved factory in approved only mode");
        }
    }

    public abstract OutputDigestCalculator createOutputDigestCalculator(final T parameter);
}