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) { Asn1TaggedObject tagObj = (Asn1TaggedObject)authInfo; if (tagObj.TagNo != 0) { throw new ArgumentException("Unknown authInfo tag: " + tagObj.TagNo, "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; } } /** *
         * 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
         * 
* @return a basic ASN.1 object representation. */ public override Asn1Object ToAsn1Object() { Asn1EncodableVector v = new Asn1EncodableVector(); if (sender != null) { v.Add(new DerTaggedObject(false, 0, sender)); } else { v.Add(publicKeyMac); } v.Add(publicKey); return new DerSequence(v); } } }