150 lines
3.2 KiB
C#
150 lines
3.2 KiB
C#
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
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#pragma warning disable
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using System;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.Cms
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{
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/**
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* Produce an object suitable for an Asn1OutputStream.
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*
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* <pre>
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* AuthEnvelopedData ::= SEQUENCE {
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* version CMSVersion,
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* originatorInfo [0] IMPLICIT OriginatorInfo OPTIONAL,
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* recipientInfos RecipientInfos,
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* authEncryptedContentInfo EncryptedContentInfo,
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* authAttrs [1] IMPLICIT AuthAttributes OPTIONAL,
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* mac MessageAuthenticationCode,
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* unauthAttrs [2] IMPLICIT UnauthAttributes OPTIONAL }
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* </pre>
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*/
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public class AuthEnvelopedDataParser
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{
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private Asn1SequenceParser seq;
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private DerInteger version;
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private IAsn1Convertible nextObject;
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private bool originatorInfoCalled;
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public AuthEnvelopedDataParser(
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Asn1SequenceParser seq)
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{
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this.seq = seq;
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// TODO
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// "It MUST be set to 0."
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this.version = (DerInteger)seq.ReadObject();
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}
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public DerInteger Version
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{
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get { return version; }
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}
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public OriginatorInfo GetOriginatorInfo()
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{
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originatorInfoCalled = true;
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if (nextObject == null)
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{
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nextObject = seq.ReadObject();
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}
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if (nextObject is Asn1TaggedObjectParser && ((Asn1TaggedObjectParser)nextObject).TagNo == 0)
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{
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Asn1SequenceParser originatorInfo = (Asn1SequenceParser) ((Asn1TaggedObjectParser)nextObject).GetObjectParser(Asn1Tags.Sequence, false);
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nextObject = null;
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return OriginatorInfo.GetInstance(originatorInfo.ToAsn1Object());
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}
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return null;
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}
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public Asn1SetParser GetRecipientInfos()
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{
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if (!originatorInfoCalled)
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{
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GetOriginatorInfo();
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}
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if (nextObject == null)
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{
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nextObject = seq.ReadObject();
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}
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Asn1SetParser recipientInfos = (Asn1SetParser)nextObject;
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nextObject = null;
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return recipientInfos;
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}
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public EncryptedContentInfoParser GetAuthEncryptedContentInfo()
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{
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if (nextObject == null)
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{
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nextObject = seq.ReadObject();
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}
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if (nextObject != null)
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{
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Asn1SequenceParser o = (Asn1SequenceParser) nextObject;
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nextObject = null;
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return new EncryptedContentInfoParser(o);
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}
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return null;
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}
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public Asn1SetParser GetAuthAttrs()
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{
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if (nextObject == null)
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{
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nextObject = seq.ReadObject();
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}
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if (nextObject is Asn1TaggedObjectParser)
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{
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IAsn1Convertible o = nextObject;
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nextObject = null;
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return (Asn1SetParser)((Asn1TaggedObjectParser)o).GetObjectParser(Asn1Tags.Set, false);
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}
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// TODO
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// "The authAttrs MUST be present if the content type carried in
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// EncryptedContentInfo is not id-data."
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return null;
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}
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public Asn1OctetString GetMac()
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{
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if (nextObject == null)
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{
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nextObject = seq.ReadObject();
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}
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IAsn1Convertible o = nextObject;
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nextObject = null;
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return Asn1OctetString.GetInstance(o.ToAsn1Object());
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}
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public Asn1SetParser GetUnauthAttrs()
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{
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if (nextObject == null)
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{
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nextObject = seq.ReadObject();
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}
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if (nextObject != null)
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{
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IAsn1Convertible o = nextObject;
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nextObject = null;
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return (Asn1SetParser)((Asn1TaggedObjectParser)o).GetObjectParser(Asn1Tags.Set, false);
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}
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return null;
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}
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}
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}
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#pragma warning restore
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#endif
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