package org.bouncycastle.asn1.crmf;
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.cmp.CMPObjectIdentifiers;
import org.bouncycastle.asn1.cmp.PBMParameter;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
/**
* Password-based MAC value for use with POPOSigningKeyInput.
*/
public class PKMACValue
extends ASN1Object
{
private AlgorithmIdentifier algId;
private DERBitString value;
private PKMACValue(ASN1Sequence seq)
{
algId = AlgorithmIdentifier.getInstance(seq.getObjectAt(0));
value = DERBitString.getInstance(seq.getObjectAt(1));
}
public static PKMACValue getInstance(Object o)
{
if (o instanceof PKMACValue)
{
return (PKMACValue)o;
}
if (o != null)
{
return new PKMACValue(ASN1Sequence.getInstance(o));
}
return null;
}
public static PKMACValue getInstance(ASN1TaggedObject obj, boolean isExplicit)
{
return getInstance(ASN1Sequence.getInstance(obj, isExplicit));
}
/**
* Creates a new PKMACValue.
* @param params parameters for password-based MAC
* @param value MAC of the DER-encoded SubjectPublicKeyInfo
*/
public PKMACValue(
PBMParameter params,
DERBitString value)
{
this(new AlgorithmIdentifier(
CMPObjectIdentifiers.passwordBasedMac, params), value);
}
/**
* Creates a new PKMACValue.
* @param aid CMPObjectIdentifiers.passwordBasedMAC, with PBMParameter
* @param value MAC of the DER-encoded SubjectPublicKeyInfo
*/
public PKMACValue(
AlgorithmIdentifier aid,
DERBitString value)
{
this.algId = aid;
this.value = value;
}
public AlgorithmIdentifier getAlgId()
{
return algId;
}
public DERBitString getValue()
{
return value;
}
/**
* <pre>
* PKMACValue ::= SEQUENCE {
* algId AlgorithmIdentifier,
* -- algorithm value shall be PasswordBasedMac 1.2.840.113533.7.66.13
* -- parameter value is PBMParameter
* value BIT STRING }
* </pre>
* @return a basic ASN.1 object representation.
*/
public ASN1Primitive toASN1Primitive()
{
ASN1EncodableVector v = new ASN1EncodableVector();
v.add(algId);
v.add(value);
return new DERSequence(v);
}
}