org.bouncycastle.asn1.smime.SMIMEEncryptionKeyPreferenceAttribute Maven / Gradle / Ivy

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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.smime;

import org.bouncycastle.asn1.ASN1OctetString;
import org.bouncycastle.asn1.DERSet;
import org.bouncycastle.asn1.DERTaggedObject;
import org.bouncycastle.asn1.cms.Attribute;
import org.bouncycastle.asn1.cms.IssuerAndSerialNumber;
import org.bouncycastle.asn1.cms.RecipientKeyIdentifier;

/**
 * The SMIMEEncryptionKeyPreference object.
 *  * SMIMEEncryptionKeyPreference ::= CHOICE {
 *     issuerAndSerialNumber   [0] IssuerAndSerialNumber,
 *     receipentKeyId          [1] RecipientKeyIdentifier,
 *     subjectAltKeyIdentifier [2] SubjectKeyIdentifier
 * }
 * 
 */
public class SMIMEEncryptionKeyPreferenceAttribute
    extends Attribute
{
    public SMIMEEncryptionKeyPreferenceAttribute(
        IssuerAndSerialNumber issAndSer)
    {
        super(SMIMEAttributes.encrypKeyPref,
                new DERSet(new DERTaggedObject(false, 0, issAndSer)));
    }
    
    public SMIMEEncryptionKeyPreferenceAttribute(
        RecipientKeyIdentifier rKeyId)
    {

        super(SMIMEAttributes.encrypKeyPref, 
                    new DERSet(new DERTaggedObject(false, 1, rKeyId)));
    }
    
    /**
     * @param sKeyId the subjectKeyIdentifier value (normally the X.509 one)
     */
    public SMIMEEncryptionKeyPreferenceAttribute(
        ASN1OctetString sKeyId)
    {

        super(SMIMEAttributes.encrypKeyPref,
                    new DERSet(new DERTaggedObject(false, 2, sKeyId)));
    }
}