package org.bouncycastle.asn1.cms;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Integer;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1Set;
import org.bouncycastle.asn1.BERSequence;
import org.bouncycastle.asn1.BERTaggedObject;
public class EncryptedData
extends ASN1Object
{
private ASN1Integer version;
private EncryptedContentInfo encryptedContentInfo;
private ASN1Set unprotectedAttrs;
public static EncryptedData getInstance(Object o)
{
if (o instanceof EncryptedData)
{
return (EncryptedData)o;
}
if (o != null)
{
return new EncryptedData(ASN1Sequence.getInstance(o));
}
return null;
}
public EncryptedData(EncryptedContentInfo encInfo)
{
this(encInfo, null);
}
public EncryptedData(EncryptedContentInfo encInfo, ASN1Set unprotectedAttrs)
{
this.version = new ASN1Integer((unprotectedAttrs == null) ? 0 : 2);
this.encryptedContentInfo = encInfo;
this.unprotectedAttrs = unprotectedAttrs;
}
private EncryptedData(ASN1Sequence seq)
{
this.version = ASN1Integer.getInstance(seq.getObjectAt(0));
this.encryptedContentInfo = EncryptedContentInfo.getInstance(seq.getObjectAt(1));
if (seq.size() == 3)
{
this.unprotectedAttrs = ASN1Set.getInstance(seq.getObjectAt(2));
}
}
public ASN1Integer getVersion()
{
return version;
}
public EncryptedContentInfo getEncryptedContentInfo()
{
return encryptedContentInfo;
}
public ASN1Set getUnprotectedAttrs()
{
return unprotectedAttrs;
}
/**
* <pre>
* EncryptedData ::= SEQUENCE {
* version CMSVersion,
* encryptedContentInfo EncryptedContentInfo,
* unprotectedAttrs [1] IMPLICIT UnprotectedAttributes OPTIONAL }
* </pre>
* @return a basic ASN.1 object representation.
*/
public ASN1Primitive toASN1Primitive()
{
ASN1EncodableVector v = new ASN1EncodableVector();
v.add(version);
v.add(encryptedContentInfo);
if (unprotectedAttrs != null)
{
v.add(new BERTaggedObject(false, 1, unprotectedAttrs));
}
return new BERSequence(v);
}
}