nl.open.jwtdependency.org.bouncycastle.asn1.icao.LDSSecurityObject Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of java-jwt-nodependencies Show documentation

This is a drop in replacement for the auth0 java-jwt library (see https://github.com/auth0/java-jwt). This jar makes sure there are no external dependencies (e.g. fasterXml, Apacha Commons) needed. This is useful when deploying to an application server (e.g. tomcat with Alfreso or Pega).

The newest version!

package org.bouncycastle.asn1.icao;

import java.util.Enumeration;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Integer;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;

/**
 * The LDSSecurityObject object (V1.8).
 *  * LDSSecurityObject ::= SEQUENCE {
 *   version                LDSSecurityObjectVersion,
 *   hashAlgorithm          DigestAlgorithmIdentifier,
 *   dataGroupHashValues    SEQUENCE SIZE (2..ub-DataGroups) OF DataHashGroup,
 *   ldsVersionInfo         LDSVersionInfo OPTIONAL
 *   -- if present, version MUST be v1 }
 *   
 * DigestAlgorithmIdentifier ::= AlgorithmIdentifier,
 * 
 * LDSSecurityObjectVersion :: INTEGER {V0(0)}
 * 
 */

public class LDSSecurityObject 
    extends ASN1Object
    implements ICAOObjectIdentifiers    
{
    public static final int ub_DataGroups = 16;
    
    private ASN1Integer version = new ASN1Integer(0);
    private AlgorithmIdentifier digestAlgorithmIdentifier;
    private DataGroupHash[] datagroupHash;
    private LDSVersionInfo versionInfo;

    public static LDSSecurityObject getInstance(
        Object obj)
    {
        if (obj instanceof LDSSecurityObject)
        {
            return (LDSSecurityObject)obj;
        }
        else if (obj != null)
        {
            return new LDSSecurityObject(ASN1Sequence.getInstance(obj));            
        }
        
        return null;
    }    
    
    private LDSSecurityObject(
        ASN1Sequence seq)
    {
        if (seq == null || seq.size() == 0)
        {
            throw new IllegalArgumentException("null or empty sequence passed.");
        }
        
        Enumeration e = seq.getObjects();

        // version
        version = ASN1Integer.getInstance(e.nextElement());
        // digestAlgorithmIdentifier
        digestAlgorithmIdentifier = AlgorithmIdentifier.getInstance(e.nextElement());
      
        ASN1Sequence datagroupHashSeq = ASN1Sequence.getInstance(e.nextElement());

        if (version.getValue().intValue() == 1)
        {
            versionInfo = LDSVersionInfo.getInstance(e.nextElement());
        }

        checkDatagroupHashSeqSize(datagroupHashSeq.size());        
        
        datagroupHash = new DataGroupHash[datagroupHashSeq.size()];
        for (int i= 0; i< datagroupHashSeq.size();i++)
        {
            datagroupHash[i] = DataGroupHash.getInstance(datagroupHashSeq.getObjectAt(i));
        }
    }

    public LDSSecurityObject(
        AlgorithmIdentifier digestAlgorithmIdentifier, 
        DataGroupHash[]       datagroupHash)
    {
        this.version = new ASN1Integer(0);
        this.digestAlgorithmIdentifier = digestAlgorithmIdentifier;
        this.datagroupHash = datagroupHash;
        
        checkDatagroupHashSeqSize(datagroupHash.length);                      
    }    

    public LDSSecurityObject(
        AlgorithmIdentifier digestAlgorithmIdentifier,
        DataGroupHash[]     datagroupHash,
        LDSVersionInfo      versionInfo)
    {
        this.version = new ASN1Integer(1);
        this.digestAlgorithmIdentifier = digestAlgorithmIdentifier;
        this.datagroupHash = datagroupHash;
        this.versionInfo = versionInfo;

        checkDatagroupHashSeqSize(datagroupHash.length);
    }

    private void checkDatagroupHashSeqSize(int size)
    {
        if ((size < 2) || (size > ub_DataGroups))
        {
               throw new IllegalArgumentException("wrong size in DataGroupHashValues : not in (2.."+ ub_DataGroups +")");
        }
    }  

    public int getVersion()
    {
        return version.getValue().intValue();
    }

    public AlgorithmIdentifier getDigestAlgorithmIdentifier()
    {
        return digestAlgorithmIdentifier;
    }
    
    public DataGroupHash[] getDatagroupHash()
    {
        return datagroupHash;
    }

    public LDSVersionInfo getVersionInfo()
    {
        return versionInfo;
    }

    public ASN1Primitive toASN1Primitive()
    {
        ASN1EncodableVector seq = new ASN1EncodableVector();
        
        seq.add(version);
        seq.add(digestAlgorithmIdentifier);
                
        ASN1EncodableVector seqname = new ASN1EncodableVector();
        for (int i = 0; i < datagroupHash.length; i++) 
        {
            seqname.add(datagroupHash[i]);
        }            
        seq.add(new DERSequence(seqname));                   

        if (versionInfo != null)
        {
            seq.add(versionInfo);
        }

        return new DERSequence(seq);
    }
}