org.bouncycastle.asn1.cms.KeyAgreeRecipientIdentifier Maven / Gradle / Ivy

Go to download

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

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.

The newest version!

/***************************************************************/
/******    DO NOT EDIT THIS CLASS bc-java SOURCE FILE     ******/
/***************************************************************/
package org.bouncycastle.asn1.cms;

import org.bouncycastle.asn1.ASN1Choice;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DERTaggedObject;

/**
 * RFC 5652:
 * Content encryption key delivery mechanisms.
 * 
 * 
 * KeyAgreeRecipientIdentifier ::= CHOICE {
 *     issuerAndSerialNumber IssuerAndSerialNumber,
 *     rKeyId [0] IMPLICIT RecipientKeyIdentifier }
 * 
 */
public class KeyAgreeRecipientIdentifier
    extends ASN1Object
    implements ASN1Choice
{
    private IssuerAndSerialNumber issuerSerial;
    private RecipientKeyIdentifier rKeyID;

    /**
     * Return an KeyAgreeRecipientIdentifier object from a tagged object.
     *
     * @param obj the tagged object holding the object we want.
     * @param explicit true if the object is meant to be explicitly
     *              tagged false otherwise.
     * @exception IllegalArgumentException if the object held by the
     *          tagged object cannot be converted.
     */
    public static KeyAgreeRecipientIdentifier getInstance(
        ASN1TaggedObject    obj,
        boolean             explicit)
    {
        return getInstance(ASN1Sequence.getInstance(obj, explicit));
    }
    
    /**
     * Return an KeyAgreeRecipientIdentifier object from the given object.
     * 
     * Accepted inputs:
     * 

     *  {@link KeyAgreeRecipientIdentifier} object
     * 
 {@link org.bouncycastle.asn1.ASN1Sequence#getInstance(java.lang.Object) ASN1Sequence} input formats with IssuerAndSerialNumber structure inside
     * 
 {@link org.bouncycastle.asn1.ASN1TaggedObject#getInstance(java.lang.Object) ASN1TaggedObject} with tag value 0: a KeyAgreeRecipientIdentifier data structure
     * 
     * 
     * Note: no byte[] input!
     *
     * @param obj the object we want converted.
     * @exception IllegalArgumentException if the object cannot be converted.
     */
    public static KeyAgreeRecipientIdentifier getInstance(
        Object obj)
    {
        if (obj == null || obj instanceof KeyAgreeRecipientIdentifier)
        {
            return (KeyAgreeRecipientIdentifier)obj;
        }
        
        if (obj instanceof ASN1Sequence)
        {
            return new KeyAgreeRecipientIdentifier(IssuerAndSerialNumber.getInstance(obj));
        }
        
        if (obj instanceof ASN1TaggedObject && ((ASN1TaggedObject)obj).getTagNo() == 0)
        {
            return new KeyAgreeRecipientIdentifier(RecipientKeyIdentifier.getInstance(
                (ASN1TaggedObject)obj, false));
        }
        
        throw new IllegalArgumentException("Invalid KeyAgreeRecipientIdentifier: " + obj.getClass().getName());
    } 

    public KeyAgreeRecipientIdentifier(
        IssuerAndSerialNumber issuerSerial)
    {
        this.issuerSerial = issuerSerial;
        this.rKeyID = null;
    }

    public KeyAgreeRecipientIdentifier(
         RecipientKeyIdentifier rKeyID)
    {
        this.issuerSerial = null;
        this.rKeyID = rKeyID;
    }

    public IssuerAndSerialNumber getIssuerAndSerialNumber()
    {
        return issuerSerial;
    }

    public RecipientKeyIdentifier getRKeyID()
    {
        return rKeyID;
    }

    /** 
     * Produce an object suitable for an ASN1OutputStream.
     */
    public ASN1Primitive toASN1Primitive()
    {
        if (issuerSerial != null)
        {
            return issuerSerial.toASN1Primitive();
        }

        return new DERTaggedObject(false, 0, rKeyID);
    }
}