Example usage for org.bouncycastle.jcajce.provider.util DigestFactory isSameDigest

Introduction

In this page you can find the example usage for org.bouncycastle.jcajce.provider.util DigestFactory isSameDigest.

Prototype

public static boolean isSameDigest(String digest1, String digest2) 

Source Link

Usage

From source file:org.xipki.commons.security.pkcs11.provider.P11RSAPSSSignatureSpi.java

License:Open Source License

@Override
protected void engineSetParameter(final AlgorithmParameterSpec params) throws InvalidParameterException {
    if (params instanceof PSSParameterSpec) {
        PSSParameterSpec newParamSpec = (PSSParameterSpec) params;

        if (originalSpec != null) {
            if (!DigestFactory.isSameDigest(originalSpec.getDigestAlgorithm(),
                    newParamSpec.getDigestAlgorithm())) {
                throw new InvalidParameterException(
                        "parameter must be using " + originalSpec.getDigestAlgorithm());
            }/*from  w w  w . j a v  a 2  s  .  c o m*/
        }
        if (!newParamSpec.getMGFAlgorithm().equalsIgnoreCase("MGF1")
                && !newParamSpec.getMGFAlgorithm().equals(PKCSObjectIdentifiers.id_mgf1.getId())) {
            throw new InvalidParameterException("unknown mask generation function specified");
        }

        if (!(newParamSpec.getMGFParameters() instanceof MGF1ParameterSpec)) {
            throw new InvalidParameterException("unkown MGF parameters");
        }

        MGF1ParameterSpec mgfParams = (MGF1ParameterSpec) newParamSpec.getMGFParameters();

        if (!DigestFactory.isSameDigest(mgfParams.getDigestAlgorithm(), newParamSpec.getDigestAlgorithm())) {
            throw new InvalidParameterException(
                    "digest algorithm for MGF should be the same as for PSS parameters.");
        }

        Digest newDigest = DigestFactory.getDigest(mgfParams.getDigestAlgorithm());

        if (newDigest == null) {
            throw new InvalidParameterException(
                    "no match on MGF digest algorithm: " + mgfParams.getDigestAlgorithm());
        }

        this.engineParams = null;
        this.paramSpec = newParamSpec;
        this.mgfDigest = newDigest;
        this.saltLength = paramSpec.getSaltLength();
        this.trailer = getTrailer(paramSpec.getTrailerField());

        setupContentDigest();
    } else {
        throw new InvalidParameterException("only PSSParameterSpec supported");
    }
}

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From source file:org.xipki.security.provider.RSAPSSSignatureSpi.java

License:Open Source License

protected void engineSetParameter(final AlgorithmParameterSpec params) throws InvalidParameterException {
    if (params instanceof PSSParameterSpec) {
        PSSParameterSpec newParamSpec = (PSSParameterSpec) params;

        if (originalSpec != null) {
            if (DigestFactory.isSameDigest(originalSpec.getDigestAlgorithm(),
                    newParamSpec.getDigestAlgorithm()) == false) {
                throw new InvalidParameterException(
                        "parameter must be using " + originalSpec.getDigestAlgorithm());
            }/*w w w.ja v a  2  s  .co m*/
        }
        if ((newParamSpec.getMGFAlgorithm().equalsIgnoreCase("MGF1") == false)
                && (newParamSpec.getMGFAlgorithm().equals(PKCSObjectIdentifiers.id_mgf1.getId()) == false)) {
            throw new InvalidParameterException("unknown mask generation function specified");
        }

        if ((newParamSpec.getMGFParameters() instanceof MGF1ParameterSpec) == false) {
            throw new InvalidParameterException("unkown MGF parameters");
        }

        MGF1ParameterSpec mgfParams = (MGF1ParameterSpec) newParamSpec.getMGFParameters();

        if (DigestFactory.isSameDigest(mgfParams.getDigestAlgorithm(),
                newParamSpec.getDigestAlgorithm()) == false) {
            throw new InvalidParameterException(
                    "digest algorithm for MGF should be the same as for PSS parameters.");
        }

        Digest newDigest = DigestFactory.getDigest(mgfParams.getDigestAlgorithm());

        if (newDigest == null) {
            throw new InvalidParameterException(
                    "no match on MGF digest algorithm: " + mgfParams.getDigestAlgorithm());
        }

        this.engineParams = null;
        this.paramSpec = newParamSpec;
        this.mgfDigest = newDigest;
        this.saltLength = paramSpec.getSaltLength();
        this.trailer = getTrailer(paramSpec.getTrailerField());

        setupContentDigest();
    } else {
        throw new InvalidParameterException("only PSSParameterSpec supported");
    }
}

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