98 lines
2.1 KiB
C#
98 lines
2.1 KiB
C#
using System;
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using System.Collections;
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using Org.BouncyCastle.Utilities;
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namespace Org.BouncyCastle.Asn1.X509;
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public class ExtendedKeyUsage : Asn1Encodable
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{
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internal readonly IDictionary usageTable = Platform.CreateHashtable();
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internal readonly Asn1Sequence seq;
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public int Count => usageTable.Count;
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public static ExtendedKeyUsage GetInstance(Asn1TaggedObject obj, bool explicitly)
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{
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return GetInstance(Asn1Sequence.GetInstance(obj, explicitly));
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}
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public static ExtendedKeyUsage GetInstance(object obj)
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{
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if (obj is ExtendedKeyUsage)
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{
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return (ExtendedKeyUsage)obj;
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}
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if (obj is Asn1Sequence)
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{
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return new ExtendedKeyUsage((Asn1Sequence)obj);
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}
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if (obj is X509Extension)
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{
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return GetInstance(X509Extension.ConvertValueToObject((X509Extension)obj));
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}
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throw new ArgumentException("Invalid ExtendedKeyUsage: " + Platform.GetTypeName(obj));
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}
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private ExtendedKeyUsage(Asn1Sequence seq)
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{
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this.seq = seq;
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foreach (object item in seq)
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{
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if (!(item is DerObjectIdentifier))
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{
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throw new ArgumentException("Only DerObjectIdentifier instances allowed in ExtendedKeyUsage.");
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}
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usageTable[item] = item;
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}
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}
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public ExtendedKeyUsage(params KeyPurposeID[] usages)
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{
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seq = new DerSequence(usages);
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foreach (KeyPurposeID keyPurposeID in usages)
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{
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usageTable[keyPurposeID] = keyPurposeID;
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}
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}
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[Obsolete]
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public ExtendedKeyUsage(ArrayList usages)
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: this((IEnumerable)usages)
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{
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}
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public ExtendedKeyUsage(IEnumerable usages)
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{
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Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector();
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foreach (object usage in usages)
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{
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Asn1Encodable instance = DerObjectIdentifier.GetInstance(usage);
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asn1EncodableVector.Add(instance);
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usageTable[instance] = instance;
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}
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seq = new DerSequence(asn1EncodableVector);
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}
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public bool HasKeyPurposeId(KeyPurposeID keyPurposeId)
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{
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return usageTable.Contains(keyPurposeId);
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}
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[Obsolete("Use 'GetAllUsages'")]
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public ArrayList GetUsages()
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{
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return new ArrayList(usageTable.Values);
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}
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public IList GetAllUsages()
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{
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return Platform.CreateArrayList(usageTable.Values);
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}
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public override Asn1Object ToAsn1Object()
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{
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return seq;
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}
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}
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