PKMacValue.cs
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using System;
using Org.BouncyCastle.Asn1.Cmp;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.Crmf
{
/**
* Password-based MAC value for use with POPOSigningKeyInput.
*/
public class PKMacValue
: Asn1Encodable
{
private readonly AlgorithmIdentifier algID;
private readonly DerBitString macValue;
private PKMacValue(Asn1Sequence seq)
{
this.algID = AlgorithmIdentifier.GetInstance(seq[0]);
this.macValue = DerBitString.GetInstance(seq[1]);
}
public static PKMacValue GetInstance(object obj)
{
if (obj is PKMacValue)
return (PKMacValue)obj;
if (obj is Asn1Sequence)
return new PKMacValue((Asn1Sequence)obj);
throw new ArgumentException("Invalid object: " + Platform.GetTypeName(obj), "obj");
}
public static PKMacValue GetInstance(Asn1TaggedObject obj, bool 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 pbmParams,
DerBitString macValue)
: this(new AlgorithmIdentifier(CmpObjectIdentifiers.passwordBasedMac, pbmParams), macValue)
{
}
/**
* Creates a new PKMACValue.
* @param aid CMPObjectIdentifiers.passwordBasedMAC, with PBMParameter
* @param value MAC of the DER-encoded SubjectPublicKeyInfo
*/
public PKMacValue(
AlgorithmIdentifier algID,
DerBitString macValue)
{
this.algID = algID;
this.macValue = macValue;
}
public virtual AlgorithmIdentifier AlgID
{
get { return algID; }
}
public virtual DerBitString MacValue
{
get { return macValue; }
}
/**
* <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 override Asn1Object ToAsn1Object()
{
return new DerSequence(algID, macValue);
}
}
}