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The Bouncy Castle Java APIs for ASN.1 extension and utility APIs used to support bcpkix and bctls with the BC FIPS provider. The APIs may also be used with other providers although if being used in a FIPS context it is the responsibility of the user to ensure that any other providers used are FIPS certified and used appropriately.

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package org.bouncycastle.asn1.icao;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.DERPrintableString;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.DERPrintableString;
import org.bouncycastle.asn1.DERSequence;

public class LDSVersionInfo
    extends ASN1Object
{
    private DERPrintableString ldsVersion;
    private DERPrintableString unicodeVersion;

    public LDSVersionInfo(String ldsVersion, String unicodeVersion)
    {
        this.ldsVersion = new DERPrintableString(ldsVersion);
        this.unicodeVersion = new DERPrintableString(unicodeVersion);
    }

    private LDSVersionInfo(ASN1Sequence seq)
    {
        if (seq.size() != 2)
        {
            throw new IllegalArgumentException("sequence wrong size for LDSVersionInfo");
        }

        this.ldsVersion = DERPrintableString.getInstance(seq.getObjectAt(0));
        this.unicodeVersion = DERPrintableString.getInstance(seq.getObjectAt(1));
    }

    public static LDSVersionInfo getInstance(Object obj)
    {
        if (obj instanceof LDSVersionInfo)
        {
            return (LDSVersionInfo)obj;
        }
        else if (obj != null)
        {
            return new LDSVersionInfo(ASN1Sequence.getInstance(obj));
        }

        return null;
    }

    public String getLdsVersion()
    {
        return ldsVersion.getString();
    }

    public String getUnicodeVersion()
    {
        return unicodeVersion.getString();
    }

    /**
     *      * LDSVersionInfo ::= SEQUENCE {
     *    ldsVersion PRINTABLE STRING
     *    unicodeVersion PRINTABLE STRING
     *  }
     * 
     * @return  an ASN.1 primitive composition of this LDSVersionInfo.
     */
    public ASN1Primitive toASN1Primitive()
    {
        ASN1EncodableVector v = new ASN1EncodableVector(2);

        v.add(ldsVersion);
        v.add(unicodeVersion);

        return new DERSequence(v);
    }
}