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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.4. Note: this package includes the NTRU encryption algorithms.

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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)));
}
}