org.bouncycastle.eac.operator.jcajce.EACHelper Maven / Gradle / Ivy

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package org.bouncycastle.eac.operator.jcajce;

import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.Signature;
import java.util.Hashtable;

import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.eac.EACObjectIdentifiers;

abstract class EACHelper
{
    private static final Hashtable sigNames = new Hashtable();

    static
    {
        sigNames.put(EACObjectIdentifiers.id_TA_RSA_v1_5_SHA_1, "SHA1withRSA");
        sigNames.put(EACObjectIdentifiers.id_TA_RSA_v1_5_SHA_256, "SHA256withRSA");
        sigNames.put(EACObjectIdentifiers.id_TA_RSA_PSS_SHA_1, "SHA1withRSAandMGF1");
        sigNames.put(EACObjectIdentifiers.id_TA_RSA_PSS_SHA_256, "SHA256withRSAandMGF1");
        sigNames.put(EACObjectIdentifiers.id_TA_RSA_v1_5_SHA_512, "SHA512withRSA");
        sigNames.put(EACObjectIdentifiers.id_TA_RSA_PSS_SHA_512, "SHA512withRSAandMGF1");

        sigNames.put(EACObjectIdentifiers.id_TA_ECDSA_SHA_1, "SHA1withECDSA");
        sigNames.put(EACObjectIdentifiers.id_TA_ECDSA_SHA_224, "SHA224withECDSA");
        sigNames.put(EACObjectIdentifiers.id_TA_ECDSA_SHA_256, "SHA256withECDSA");
        sigNames.put(EACObjectIdentifiers.id_TA_ECDSA_SHA_384, "SHA384withECDSA");
        sigNames.put(EACObjectIdentifiers.id_TA_ECDSA_SHA_512, "SHA512withECDSA");
    }

    public Signature getSignature(ASN1ObjectIdentifier oid)
        throws NoSuchProviderException, NoSuchAlgorithmException
    {
        return createSignature((String)sigNames.get(oid));
    }

    protected abstract Signature createSignature(String type)
        throws NoSuchProviderException, NoSuchAlgorithmException;
}