org.bouncycastle.oer.its.ieee1609dot2.HashedData Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bcutil-debug-jdk18on Show documentation

The Bouncy Castle Java APIs for ASN.1 extension and utility APIs used to support bcpkix and bctls. This jar contains APIs for JDK 1.8 and up.

There is a newer version: 1.78.1

Show newest version

package org.bouncycastle.oer.its.ieee1609dot2;

import org.bouncycastle.asn1.ASN1Choice;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1OctetString;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.BERTags;
import org.bouncycastle.asn1.DEROctetString;
import org.bouncycastle.asn1.DERTaggedObject;
import org.bouncycastle.util.Arrays;

/**
 *  *    HashedData::= CHOICE {
 *     sha256HashedData  OCTET STRING (SIZE(32)),
 *     ...,
 *     sha384HashedData  OCTET STRING (SIZE(48)),
 *     reserved          OCTET STRING (SIZE(32))
 *   }
 * 
 */
public class HashedData
    extends ASN1Object
    implements ASN1Choice
{
    public static final int sha256HashedData = 0;
    public static final int sha384HashedData = 1;
    public static final int reserved = 2;


    private final int choice;
    private final ASN1Encodable hashedData;

    public HashedData(int choice, ASN1Encodable sha256HashedData)
    {
        this.choice = choice;
        this.hashedData = sha256HashedData;
    }

    private HashedData(ASN1TaggedObject dto)
    {
        switch (dto.getTagNo())
        {
        case sha256HashedData:
        case sha384HashedData:
        case reserved:
            this.choice = dto.getTagNo();
            this.hashedData = DEROctetString.getInstance(dto.getExplicitBaseObject());
            break;
        default:
            throw new IllegalArgumentException("invalid choice value " + dto.getTagNo());
        }
    }

    public static HashedData sha256HashedData(ASN1OctetString sha256HashedData)
    {
        return new HashedData(HashedData.sha256HashedData,sha256HashedData);
    }

    public static HashedData sha256HashedData(byte[] sha256HashedData)
    {
        return new HashedData(HashedData.sha256HashedData,new DEROctetString(Arrays.clone(sha256HashedData)));
    }

    public static HashedData sha384HashedData(ASN1OctetString sha384HashedData)
    {
        return new HashedData(HashedData.sha384HashedData,sha384HashedData);
    }

    public static HashedData sha384HashedData(byte[] sha384HashedData)
    {
        return new HashedData(HashedData.sha384HashedData,new DEROctetString(Arrays.clone(sha384HashedData)));
    }

    public static HashedData reserved(ASN1OctetString reserved)
    {
       return new HashedData(HashedData.reserved,reserved);
    }

    public static HashedData reserved(byte[] reserved)
    {
        return new HashedData(HashedData.reserved, new DEROctetString(Arrays.clone(reserved)));
    }

    public static HashedData getInstance(Object o)
    {
        if (o instanceof HashedData)
        {
            return (HashedData)o;
        }

        if (o != null)
        {
            return new HashedData(ASN1TaggedObject.getInstance(o, BERTags.CONTEXT_SPECIFIC));
        }

        return null;

    }

    public int getChoice()
    {
        return choice;
    }

    public ASN1Encodable getHashedData()
    {
        return hashedData;
    }

    public ASN1Primitive toASN1Primitive()
    {
        return new DERTaggedObject(choice, hashedData);
    }


}