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using System;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.Crmf
{
public class PopoSigningKeyInput
: Asn1Encodable
{
private readonly GeneralName sender;
private readonly PKMacValue publicKeyMac;
private readonly SubjectPublicKeyInfo publicKey;
private PopoSigningKeyInput(Asn1Sequence seq)
{
Asn1Encodable authInfo = (Asn1Encodable)seq[0];
if (authInfo is Asn1TaggedObject tagObj)
{
if (tagObj.TagNo != 0)
throw new ArgumentException("Unknown authInfo tag: " + tagObj.TagNo, nameof(seq));
sender = GeneralName.GetInstance(tagObj.GetObject());
}
else
{
publicKeyMac = PKMacValue.GetInstance(authInfo);
}
publicKey = SubjectPublicKeyInfo.GetInstance(seq[1]);
}
public static PopoSigningKeyInput GetInstance(object obj)
{
if (obj is PopoSigningKeyInput)
return (PopoSigningKeyInput)obj;
if (obj is Asn1Sequence)
return new PopoSigningKeyInput((Asn1Sequence)obj);
throw new ArgumentException("Invalid object: " + Platform.GetTypeName(obj), "obj");
}
/** Creates a new PopoSigningKeyInput with sender name as authInfo. */
public PopoSigningKeyInput(
GeneralName sender,
SubjectPublicKeyInfo spki)
{
this.sender = sender;
this.publicKey = spki;
}
/** Creates a new PopoSigningKeyInput using password-based MAC. */
public PopoSigningKeyInput(
PKMacValue pkmac,
SubjectPublicKeyInfo spki)
{
this.publicKeyMac = pkmac;
this.publicKey = spki;
}
/** Returns the sender field, or null if authInfo is publicKeyMac */
public virtual GeneralName Sender
{
get { return sender; }
}
/** Returns the publicKeyMac field, or null if authInfo is sender */
public virtual PKMacValue PublicKeyMac
{
get { return publicKeyMac; }
}
public virtual SubjectPublicKeyInfo PublicKey
{
get { return publicKey; }
}
/**
* <pre>
* PopoSigningKeyInput ::= SEQUENCE {
* authInfo CHOICE {
* sender [0] GeneralName,
* -- used only if an authenticated identity has been
* -- established for the sender (e.g., a DN from a
* -- previously-issued and currently-valid certificate
* publicKeyMac PKMacValue },
* -- used if no authenticated GeneralName currently exists for
* -- the sender; publicKeyMac contains a password-based MAC
* -- on the DER-encoded value of publicKey
* publicKey SubjectPublicKeyInfo } -- from CertTemplate
* </pre>
* @return a basic ASN.1 object representation.
*/
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector v = new Asn1EncodableVector(2);
if (sender != null)
{
v.Add(new DerTaggedObject(false, 0, sender));
}
else
{
v.Add(publicKeyMac);
}
v.Add(publicKey);
return new DerSequence(v);
}
}
}
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