Examples with RSASSAPSSparams com.github.zhenwei.core.asn1.pkcs.RSASSAPSSparams used on opensource projects

Example 6 with RSASSAPSSparams

use of com.github.zhenwei.core.asn1.pkcs.RSASSAPSSparams in project jmulticard by ctt-gob-es.

the class OperatorHelper method notDefaultPSSParams.

// for our purposes default includes varient digest with salt the same size as digest
private boolean notDefaultPSSParams(ASN1Sequence seq) throws GeneralSecurityException {
    if (seq == null || seq.size() == 0) {
        return false;
    }
    RSASSAPSSparams pssParams = RSASSAPSSparams.getInstance(seq);
    if (!pssParams.getMaskGenAlgorithm().getAlgorithm().equals(PKCSObjectIdentifiers.id_mgf1)) {
        return true;
    }
    // same digest for sig and MGF1
    if (!pssParams.getHashAlgorithm().equals(AlgorithmIdentifier.getInstance(pssParams.getMaskGenAlgorithm().getParameters()))) {
        return true;
    }
    MessageDigest digest = createDigest(pssParams.getHashAlgorithm());
    return pssParams.getSaltLength().intValue() != digest.getDigestLength();
}

Example 7 with RSASSAPSSparams

use of com.github.zhenwei.core.asn1.pkcs.RSASSAPSSparams in project jmulticard by ctt-gob-es.

the class DefaultSignatureNameFinder method getAlgorithmName.

/**
 * Return the signature name for the passed in algorithm identifier. For signatures
 * that require parameters, like RSASSA-PSS, this is the best one to use.
 *
 * @param algorithmIdentifier the AlgorithmIdentifier of interest.
 * @return a string representation of the name.
 */
public String getAlgorithmName(AlgorithmIdentifier algorithmIdentifier) {
    ASN1Encodable params = algorithmIdentifier.getParameters();
    if (params != null && !DERNull.INSTANCE.equals(params)) {
        if (algorithmIdentifier.getAlgorithm().equals(PKCSObjectIdentifiers.id_RSASSA_PSS)) {
            RSASSAPSSparams rsaParams = RSASSAPSSparams.getInstance(params);
            AlgorithmIdentifier mgfAlg = rsaParams.getMaskGenAlgorithm();
            if (mgfAlg.getAlgorithm().equals(PKCSObjectIdentifiers.id_mgf1)) {
                AlgorithmIdentifier digAlg = rsaParams.getHashAlgorithm();
                ASN1ObjectIdentifier mgfHashOid = AlgorithmIdentifier.getInstance(mgfAlg.getParameters()).getAlgorithm();
                if (mgfHashOid.equals(digAlg.getAlgorithm())) {
                    return getDigestName(digAlg.getAlgorithm()) + "WITHRSAANDMGF1";
                } else {
                    return getDigestName(digAlg.getAlgorithm()) + "WITHRSAANDMGF1USING" + getDigestName(mgfHashOid);
                }
            }
            return getDigestName(rsaParams.getHashAlgorithm().getAlgorithm()) + "WITHRSAAND" + mgfAlg.getAlgorithm().getId();
        }
    }
    if (oids.containsKey(algorithmIdentifier.getAlgorithm())) {
        return (String) oids.get(algorithmIdentifier.getAlgorithm());
    }
    return algorithmIdentifier.getAlgorithm().getId();
}

Example 8 with RSASSAPSSparams

use of com.github.zhenwei.core.asn1.pkcs.RSASSAPSSparams in project LinLong-Java by zhenwei1108.

the class OperatorHelper method notDefaultPSSParams.

// for our purposes default includes varient digest with salt the same size as digest
private boolean notDefaultPSSParams(ASN1Sequence seq) throws GeneralSecurityException {
    if (seq == null || seq.size() == 0) {
        return false;
    }
    RSASSAPSSparams pssParams = RSASSAPSSparams.getInstance(seq);
    if (!pssParams.getMaskGenAlgorithm().getAlgorithm().equals(PKCSObjectIdentifiers.id_mgf1)) {
        return true;
    }
    // same digest for sig and MGF1
    if (!pssParams.getHashAlgorithm().equals(AlgorithmIdentifier.getInstance(pssParams.getMaskGenAlgorithm().getParameters()))) {
        return true;
    }
    MessageDigest digest = createDigest(pssParams.getHashAlgorithm());
    return pssParams.getSaltLength().intValue() != digest.getDigestLength();
}

Example 9 with RSASSAPSSparams

use of com.github.zhenwei.core.asn1.pkcs.RSASSAPSSparams in project LinLong-Java by zhenwei1108.

the class JcaContentSignerBuilder method createPSSParams.

private static RSASSAPSSparams createPSSParams(PSSParameterSpec pssSpec) {
    DigestAlgorithmIdentifierFinder digFinder = new DefaultDigestAlgorithmIdentifierFinder();
    AlgorithmIdentifier digId = digFinder.find(pssSpec.getDigestAlgorithm());
    if (digId.getParameters() == null) {
        digId = new AlgorithmIdentifier(digId.getAlgorithm(), DERNull.INSTANCE);
    }
    AlgorithmIdentifier mgfDig = digFinder.find(((MGF1ParameterSpec) pssSpec.getMGFParameters()).getDigestAlgorithm());
    if (mgfDig.getParameters() == null) {
        mgfDig = new AlgorithmIdentifier(mgfDig.getAlgorithm(), DERNull.INSTANCE);
    }
    return new RSASSAPSSparams(digId, new AlgorithmIdentifier(PKCSObjectIdentifiers.id_mgf1, mgfDig), new ASN1Integer(pssSpec.getSaltLength()), new ASN1Integer(pssSpec.getTrailerField()));
}

Example 10 with RSASSAPSSparams

use of com.github.zhenwei.core.asn1.pkcs.RSASSAPSSparams in project xipki by xipki.

the class ResponderSigner method getSignatureAlgorithmName.

private static String getSignatureAlgorithmName(AlgorithmIdentifier sigAlgId) {
    ASN1ObjectIdentifier algOid = sigAlgId.getAlgorithm();
    if (!PKCSObjectIdentifiers.id_RSASSA_PSS.equals(algOid)) {
        return algOid.getId();
    }
    ASN1Encodable asn1Encodable = sigAlgId.getParameters();
    RSASSAPSSparams param = RSASSAPSSparams.getInstance(asn1Encodable);
    ASN1ObjectIdentifier digestAlgOid = param.getHashAlgorithm().getAlgorithm();
    return digestAlgOid.getId() + "WITHRSAANDMGF1";
}