using System; using Org.BouncyCastle.Utilities; namespace Org.BouncyCastle.Asn1.Crmf { public class PkiArchiveOptions : Asn1Encodable, IAsn1Choice { public const int encryptedPrivKey = 0; public const int keyGenParameters = 1; public const int archiveRemGenPrivKey = 2; private readonly Asn1Encodable value; public static PkiArchiveOptions GetInstance(object obj) { if (obj is PkiArchiveOptions pkiArchiveOptions) return pkiArchiveOptions; if (obj is Asn1TaggedObject taggedObject) return new PkiArchiveOptions(Asn1Utilities.CheckTagClass(taggedObject, Asn1Tags.ContextSpecific)); throw new ArgumentException("Invalid object: " + Platform.GetTypeName(obj), "obj"); } private PkiArchiveOptions(Asn1TaggedObject tagged) { switch (tagged.TagNo) { case encryptedPrivKey: value = EncryptedKey.GetInstance(tagged.GetExplicitBaseObject()); break; case keyGenParameters: value = Asn1OctetString.GetInstance(tagged, false); break; case archiveRemGenPrivKey: value = DerBoolean.GetInstance(tagged, false); break; default: throw new ArgumentException("unknown tag number: " + tagged.TagNo, "tagged"); } } public PkiArchiveOptions(EncryptedKey encKey) { this.value = encKey; } public PkiArchiveOptions(Asn1OctetString keyGenParameters) { this.value = keyGenParameters; } public PkiArchiveOptions(bool archiveRemGenPrivKey) { this.value = DerBoolean.GetInstance(archiveRemGenPrivKey); } public virtual int Type { get { if (value is EncryptedKey) return encryptedPrivKey; if (value is Asn1OctetString) return keyGenParameters; return archiveRemGenPrivKey; } } public virtual Asn1Encodable Value { get { return value; } } /** *
         *  PkiArchiveOptions ::= CHOICE {
         *      encryptedPrivKey     [0] EncryptedKey,
         *      -- the actual value of the private key
         *      keyGenParameters     [1] KeyGenParameters,
         *      -- parameters which allow the private key to be re-generated
         *      archiveRemGenPrivKey [2] BOOLEAN }
         *      -- set to TRUE if sender wishes receiver to archive the private
         *      -- key of a key pair that the receiver generates in response to
         *      -- this request; set to FALSE if no archival is desired.
         * 
*/ public override Asn1Object ToAsn1Object() { if (value is EncryptedKey) { return new DerTaggedObject(true, encryptedPrivKey, value); // choice } if (value is Asn1OctetString) { return new DerTaggedObject(false, keyGenParameters, value); } return new DerTaggedObject(false, archiveRemGenPrivKey, value); } } }