#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR) #pragma warning disable using System; using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities; namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.Cms { public class RecipientInfo : Asn1Encodable, IAsn1Choice { internal Asn1Encodable info; public RecipientInfo( KeyTransRecipientInfo info) { this.info = info; } public RecipientInfo( KeyAgreeRecipientInfo info) { this.info = new DerTaggedObject(false, 1, info); } public RecipientInfo( KekRecipientInfo info) { this.info = new DerTaggedObject(false, 2, info); } public RecipientInfo( PasswordRecipientInfo info) { this.info = new DerTaggedObject(false, 3, info); } public RecipientInfo( OtherRecipientInfo info) { this.info = new DerTaggedObject(false, 4, info); } public RecipientInfo( Asn1Object info) { this.info = info; } public static RecipientInfo GetInstance( object o) { if (o == null || o is RecipientInfo) return (RecipientInfo) o; if (o is Asn1Sequence) return new RecipientInfo((Asn1Sequence) o); if (o is Asn1TaggedObject) return new RecipientInfo((Asn1TaggedObject) o); throw new ArgumentException("unknown object in factory: " + BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.GetTypeName(o)); } public DerInteger Version { get { if (info is Asn1TaggedObject) { Asn1TaggedObject o = (Asn1TaggedObject) info; switch (o.TagNo) { case 1: return KeyAgreeRecipientInfo.GetInstance(o, false).Version; case 2: return GetKekInfo(o).Version; case 3: return PasswordRecipientInfo.GetInstance(o, false).Version; case 4: return new DerInteger(0); // no syntax version for OtherRecipientInfo default: throw new InvalidOperationException("unknown tag"); } } return KeyTransRecipientInfo.GetInstance(info).Version; } } public bool IsTagged { get { return info is Asn1TaggedObject; } } public Asn1Encodable Info { get { if (info is Asn1TaggedObject) { Asn1TaggedObject o = (Asn1TaggedObject) info; switch (o.TagNo) { case 1: return KeyAgreeRecipientInfo.GetInstance(o, false); case 2: return GetKekInfo(o); case 3: return PasswordRecipientInfo.GetInstance(o, false); case 4: return OtherRecipientInfo.GetInstance(o, false); default: throw new InvalidOperationException("unknown tag"); } } return KeyTransRecipientInfo.GetInstance(info); } } private KekRecipientInfo GetKekInfo( Asn1TaggedObject o) { // For compatibility with erroneous version, we don't always pass 'false' here return KekRecipientInfo.GetInstance(o, o.IsExplicit()); } /** * Produce an object suitable for an Asn1OutputStream. *
* RecipientInfo ::= CHOICE { * ktri KeyTransRecipientInfo, * kari [1] KeyAgreeRecipientInfo, * kekri [2] KekRecipientInfo, * pwri [3] PasswordRecipientInfo, * ori [4] OtherRecipientInfo } **/ public override Asn1Object ToAsn1Object() { return info.ToAsn1Object(); } } } #pragma warning restore #endif