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package org.bouncycastle.asn1.cms;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DERBitString;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
public class OriginatorPublicKey
extends ASN1Object
{
private AlgorithmIdentifier algorithm;
private DERBitString publicKey;
public OriginatorPublicKey(
AlgorithmIdentifier algorithm,
byte[] publicKey)
{
this.algorithm = algorithm;
this.publicKey = new DERBitString(publicKey);
}
public OriginatorPublicKey(
ASN1Sequence seq)
{
algorithm = AlgorithmIdentifier.getInstance(seq.getObjectAt(0));
publicKey = (DERBitString)seq.getObjectAt(1);
}
/**
* return an OriginatorPublicKey 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 OriginatorPublicKey getInstance(
ASN1TaggedObject obj,
boolean explicit)
{
return getInstance(ASN1Sequence.getInstance(obj, explicit));
}
/**
* return an OriginatorPublicKey object from the given object.
*
* @param obj the object we want converted.
* @exception IllegalArgumentException if the object cannot be converted.
*/
public static OriginatorPublicKey getInstance(
Object obj)
{
if (obj == null || obj instanceof OriginatorPublicKey)
{
return (OriginatorPublicKey)obj;
}
if (obj instanceof ASN1Sequence)
{
return new OriginatorPublicKey((ASN1Sequence)obj);
}
throw new IllegalArgumentException("Invalid OriginatorPublicKey: " + obj.getClass().getName());
}
public AlgorithmIdentifier getAlgorithm()
{
return algorithm;
}
public DERBitString getPublicKey()
{
return publicKey;
}
/**
* Produce an object suitable for an ASN1OutputStream.
* <pre>
* OriginatorPublicKey ::= SEQUENCE {
* algorithm AlgorithmIdentifier,
* publicKey BIT STRING
* }
* </pre>
*/
public ASN1Primitive toASN1Primitive()
{
ASN1EncodableVector v = new ASN1EncodableVector();
v.add(algorithm);
v.add(publicKey);
return new DERSequence(v);
}
}
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