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package io.gatling.recorder.internal.bouncycastle.operator;

import java.util.HashMap;
import java.util.Map;

import io.gatling.recorder.internal.bouncycastle.asn1.ASN1Encodable;
import io.gatling.recorder.internal.bouncycastle.asn1.ASN1ObjectIdentifier;
import io.gatling.recorder.internal.bouncycastle.asn1.DERNull;
import io.gatling.recorder.internal.bouncycastle.asn1.bsi.BSIObjectIdentifiers;
import io.gatling.recorder.internal.bouncycastle.asn1.cms.CMSObjectIdentifiers;
import io.gatling.recorder.internal.bouncycastle.asn1.cryptopro.CryptoProObjectIdentifiers;
import io.gatling.recorder.internal.bouncycastle.asn1.eac.EACObjectIdentifiers;
import io.gatling.recorder.internal.bouncycastle.asn1.edec.EdECObjectIdentifiers;
import io.gatling.recorder.internal.bouncycastle.asn1.isara.IsaraObjectIdentifiers;
import io.gatling.recorder.internal.bouncycastle.asn1.nist.NISTObjectIdentifiers;
import io.gatling.recorder.internal.bouncycastle.asn1.oiw.OIWObjectIdentifiers;
import io.gatling.recorder.internal.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
import io.gatling.recorder.internal.bouncycastle.asn1.pkcs.RSASSAPSSparams;
import io.gatling.recorder.internal.bouncycastle.asn1.rosstandart.RosstandartObjectIdentifiers;
import io.gatling.recorder.internal.bouncycastle.asn1.teletrust.TeleTrusTObjectIdentifiers;
import io.gatling.recorder.internal.bouncycastle.asn1.x509.AlgorithmIdentifier;
import io.gatling.recorder.internal.bouncycastle.asn1.x9.X9ObjectIdentifiers;

/**
 * Class for return signature names from OIDs or AlgorithmIdentifiers
 */
public class DefaultSignatureNameFinder
    implements AlgorithmNameFinder
{
    private static final Map oids = new HashMap();
    private static final Map digests = new HashMap();

    static
    {
        //
        // reverse mappings
        //
        oids.put(PKCSObjectIdentifiers.id_RSASSA_PSS, "RSASSA-PSS");
        oids.put(EdECObjectIdentifiers.id_Ed25519, "ED25519");
        oids.put(EdECObjectIdentifiers.id_Ed448, "ED448");
        oids.put(new ASN1ObjectIdentifier("1.2.840.113549.1.1.5"), "SHA1WITHRSA");
        oids.put(PKCSObjectIdentifiers.sha224WithRSAEncryption, "SHA224WITHRSA");
        oids.put(PKCSObjectIdentifiers.sha256WithRSAEncryption, "SHA256WITHRSA");
        oids.put(PKCSObjectIdentifiers.sha384WithRSAEncryption, "SHA384WITHRSA");
        oids.put(PKCSObjectIdentifiers.sha512WithRSAEncryption, "SHA512WITHRSA");
        oids.put(CMSObjectIdentifiers.id_RSASSA_PSS_SHAKE128, "SHAKE128WITHRSAPSS");
        oids.put(CMSObjectIdentifiers.id_RSASSA_PSS_SHAKE256, "SHAKE256WITHRSAPSS");
        oids.put(CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_94, "GOST3411WITHGOST3410");
        oids.put(CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_2001, "GOST3411WITHECGOST3410");
        oids.put(RosstandartObjectIdentifiers.id_tc26_signwithdigest_gost_3410_12_256, "GOST3411-2012-256WITHECGOST3410-2012-256");
        oids.put(RosstandartObjectIdentifiers.id_tc26_signwithdigest_gost_3410_12_512, "GOST3411-2012-512WITHECGOST3410-2012-512");
        oids.put(BSIObjectIdentifiers.ecdsa_plain_SHA1, "SHA1WITHPLAIN-ECDSA");
        oids.put(BSIObjectIdentifiers.ecdsa_plain_SHA224, "SHA224WITHPLAIN-ECDSA");
        oids.put(BSIObjectIdentifiers.ecdsa_plain_SHA256, "SHA256WITHPLAIN-ECDSA");
        oids.put(BSIObjectIdentifiers.ecdsa_plain_SHA384, "SHA384WITHPLAIN-ECDSA");
        oids.put(BSIObjectIdentifiers.ecdsa_plain_SHA512, "SHA512WITHPLAIN-ECDSA");
        oids.put(BSIObjectIdentifiers.ecdsa_plain_SHA3_224, "SHA3-224WITHPLAIN-ECDSA");
        oids.put(BSIObjectIdentifiers.ecdsa_plain_SHA3_256, "SHA3-256WITHPLAIN-ECDSA");
        oids.put(BSIObjectIdentifiers.ecdsa_plain_SHA3_384, "SHA3-384WITHPLAIN-ECDSA");
        oids.put(BSIObjectIdentifiers.ecdsa_plain_SHA3_512, "SHA3-512WITHPLAIN-ECDSA");
        oids.put(BSIObjectIdentifiers.ecdsa_plain_RIPEMD160, "RIPEMD160WITHPLAIN-ECDSA");
        oids.put(EACObjectIdentifiers.id_TA_ECDSA_SHA_1, "SHA1WITHCVC-ECDSA");
        oids.put(EACObjectIdentifiers.id_TA_ECDSA_SHA_224, "SHA224WITHCVC-ECDSA");
        oids.put(EACObjectIdentifiers.id_TA_ECDSA_SHA_256, "SHA256WITHCVC-ECDSA");
        oids.put(EACObjectIdentifiers.id_TA_ECDSA_SHA_384, "SHA384WITHCVC-ECDSA");
        oids.put(EACObjectIdentifiers.id_TA_ECDSA_SHA_512, "SHA512WITHCVC-ECDSA");
        oids.put(IsaraObjectIdentifiers.id_alg_xmss, "XMSS");
        oids.put(IsaraObjectIdentifiers.id_alg_xmssmt, "XMSSMT");
        oids.put(TeleTrusTObjectIdentifiers.rsaSignatureWithripemd128, "RIPEMD128WITHRSA");
        oids.put(TeleTrusTObjectIdentifiers.rsaSignatureWithripemd160, "RIPEMD160WITHRSA");
        oids.put(TeleTrusTObjectIdentifiers.rsaSignatureWithripemd256, "RIPEMD256WITHRSA");
        oids.put(new ASN1ObjectIdentifier("1.2.840.113549.1.1.4"), "MD5WITHRSA");
        oids.put(new ASN1ObjectIdentifier("1.2.840.113549.1.1.2"), "MD2WITHRSA");
        oids.put(new ASN1ObjectIdentifier("1.2.840.10040.4.3"), "SHA1WITHDSA");
        oids.put(X9ObjectIdentifiers.ecdsa_with_SHA1, "SHA1WITHECDSA");
        oids.put(X9ObjectIdentifiers.ecdsa_with_SHA224, "SHA224WITHECDSA");
        oids.put(X9ObjectIdentifiers.ecdsa_with_SHA256, "SHA256WITHECDSA");
        oids.put(X9ObjectIdentifiers.ecdsa_with_SHA384, "SHA384WITHECDSA");
        oids.put(X9ObjectIdentifiers.ecdsa_with_SHA512, "SHA512WITHECDSA");
        oids.put(CMSObjectIdentifiers.id_ecdsa_with_shake128, "SHAKE128WITHECDSA");
        oids.put(CMSObjectIdentifiers.id_ecdsa_with_shake256, "SHAKE256WITHECDSA");
        oids.put(OIWObjectIdentifiers.sha1WithRSA, "SHA1WITHRSA");
        oids.put(OIWObjectIdentifiers.dsaWithSHA1, "SHA1WITHDSA");
        oids.put(NISTObjectIdentifiers.dsa_with_sha224, "SHA224WITHDSA");
        oids.put(NISTObjectIdentifiers.dsa_with_sha256, "SHA256WITHDSA");

        digests.put(OIWObjectIdentifiers.idSHA1, "SHA1");
        digests.put(NISTObjectIdentifiers.id_sha224, "SHA224");
        digests.put(NISTObjectIdentifiers.id_sha256, "SHA256");
        digests.put(NISTObjectIdentifiers.id_sha384, "SHA384");
        digests.put(NISTObjectIdentifiers.id_sha512, "SHA512");
        digests.put(NISTObjectIdentifiers.id_sha3_224, "SHA3-224");
        digests.put(NISTObjectIdentifiers.id_sha3_256, "SHA3-256");
        digests.put(NISTObjectIdentifiers.id_sha3_384, "SHA3-384");
        digests.put(NISTObjectIdentifiers.id_sha3_512, "SHA3-512");
        digests.put(TeleTrusTObjectIdentifiers.ripemd128, "RIPEMD128");
        digests.put(TeleTrusTObjectIdentifiers.ripemd160, "RIPEMD160");
        digests.put(TeleTrusTObjectIdentifiers.ripemd256, "RIPEMD256");
    }

    public boolean hasAlgorithmName(ASN1ObjectIdentifier objectIdentifier)
    {
        return oids.containsKey(objectIdentifier);
    }

    public String getAlgorithmName(ASN1ObjectIdentifier objectIdentifier)
    {
        String name = (String)oids.get(objectIdentifier);
        if (name != null)
        {
            return name;
        }
        return objectIdentifier.getId();
    }

    /**
     * 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();
    }

    private static String getDigestName(ASN1ObjectIdentifier oid)
    {
        String name = (String)digests.get(oid);
        if (name != null)
        {
            return name;
        }
        return oid.getId();
    }
}




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