package org.bouncycastle.asn1.cms;
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.DERTaggedObject;
public class SignerIdentifier
extends ASN1Object
implements ASN1Choice
{
private ASN1Encodable id;
public SignerIdentifier(
IssuerAndSerialNumber id)
{
this.id = id;
}
public SignerIdentifier(
ASN1OctetString id)
{
this.id = new DERTaggedObject(false, 0, id);
}
public SignerIdentifier(
ASN1Primitive id)
{
this.id = id;
}
/**
* return a SignerIdentifier object from the given object.
*
* @param o the object we want converted.
* @exception IllegalArgumentException if the object cannot be converted.
*/
public static SignerIdentifier getInstance(
Object o)
{
if (o == null || o instanceof SignerIdentifier)
{
return (SignerIdentifier)o;
}
if (o instanceof IssuerAndSerialNumber)
{
return new SignerIdentifier((IssuerAndSerialNumber)o);
}
if (o instanceof ASN1OctetString)
{
return new SignerIdentifier((ASN1OctetString)o);
}
if (o instanceof ASN1Primitive)
{
return new SignerIdentifier((ASN1Primitive)o);
}
throw new IllegalArgumentException(
"Illegal object in SignerIdentifier: " + o.getClass().getName());
}
public boolean isTagged()
{
return (id instanceof ASN1TaggedObject);
}
public ASN1Encodable getId()
{
if (id instanceof ASN1TaggedObject)
{
return ASN1OctetString.getInstance((ASN1TaggedObject)id, false);
}
return id;
}
/**
* Produce an object suitable for an ASN1OutputStream.
* <pre>
* SignerIdentifier ::= CHOICE {
* issuerAndSerialNumber IssuerAndSerialNumber,
* subjectKeyIdentifier [0] SubjectKeyIdentifier
* }
*
* SubjectKeyIdentifier ::= OCTET STRING
* </pre>
*/
public ASN1Primitive toASN1Primitive()
{
return id.toASN1Primitive();
}
}