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Packages/com.tivadar.best.http/Runtime/3rdParty/BouncyCastle/asn1/x509/TBSCertificateStructure.cs
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260
Packages/com.tivadar.best.http/Runtime/3rdParty/BouncyCastle/asn1/x509/TBSCertificateStructure.cs
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#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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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Utilities;
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namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.X509
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{
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/**
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* The TbsCertificate object.
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* <pre>
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* TbsCertificate ::= Sequence {
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* version [ 0 ] Version DEFAULT v1(0),
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* serialNumber CertificateSerialNumber,
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* signature AlgorithmIdentifier,
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* issuer Name,
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* validity Validity,
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* subject Name,
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* subjectPublicKeyInfo SubjectPublicKeyInfo,
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* issuerUniqueID [ 1 ] IMPLICIT UniqueIdentifier OPTIONAL,
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* subjectUniqueID [ 2 ] IMPLICIT UniqueIdentifier OPTIONAL,
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* extensions [ 3 ] Extensions OPTIONAL
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* }
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* </pre>
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* <p>
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* Note: issuerUniqueID and subjectUniqueID are both deprecated by the IETF. This class
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* will parse them, but you really shouldn't be creating new ones.</p>
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*/
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public class TbsCertificateStructure
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: Asn1Encodable
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{
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internal Asn1Sequence seq;
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internal DerInteger version;
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internal DerInteger serialNumber;
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internal AlgorithmIdentifier signature;
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internal X509Name issuer;
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internal Time startDate, endDate;
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internal X509Name subject;
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internal SubjectPublicKeyInfo subjectPublicKeyInfo;
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internal DerBitString issuerUniqueID;
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internal DerBitString subjectUniqueID;
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internal X509Extensions extensions;
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public static TbsCertificateStructure GetInstance(
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Asn1TaggedObject obj,
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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 TbsCertificateStructure GetInstance(
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object obj)
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{
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if (obj is TbsCertificateStructure)
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return (TbsCertificateStructure) obj;
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if (obj != null)
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return new TbsCertificateStructure(Asn1Sequence.GetInstance(obj));
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return null;
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}
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internal TbsCertificateStructure(
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Asn1Sequence seq)
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{
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int seqStart = 0;
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this.seq = seq;
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//
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// some certficates don't include a version number - we assume v1
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//
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if (seq[0] is Asn1TaggedObject)
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{
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version = DerInteger.GetInstance((Asn1TaggedObject)seq[0], true);
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}
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else
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{
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seqStart = -1; // field 0 is missing!
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version = new DerInteger(0);
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}
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bool isV1 = false;
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bool isV2 = false;
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if (version.HasValue(0))
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{
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isV1 = true;
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}
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else if (version.HasValue(1))
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{
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isV2 = true;
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}
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else if (!version.HasValue(2))
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{
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throw new ArgumentException("version number not recognised");
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}
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serialNumber = DerInteger.GetInstance(seq[seqStart + 1]);
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signature = AlgorithmIdentifier.GetInstance(seq[seqStart + 2]);
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issuer = X509Name.GetInstance(seq[seqStart + 3]);
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//
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// before and after dates
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//
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Asn1Sequence dates = (Asn1Sequence)seq[seqStart + 4];
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startDate = Time.GetInstance(dates[0]);
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endDate = Time.GetInstance(dates[1]);
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subject = X509Name.GetInstance(seq[seqStart + 5]);
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//
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// public key info.
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//
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subjectPublicKeyInfo = SubjectPublicKeyInfo.GetInstance(seq[seqStart + 6]);
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int extras = seq.Count - (seqStart + 6) - 1;
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if (extras != 0 && isV1)
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throw new ArgumentException("version 1 certificate contains extra data");
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while (extras > 0)
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{
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Asn1TaggedObject extra = Asn1TaggedObject.GetInstance(seq[seqStart + 6 + extras]);
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switch (extra.TagNo)
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{
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case 1:
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{
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issuerUniqueID = DerBitString.GetInstance(extra, false);
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break;
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}
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case 2:
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{
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subjectUniqueID = DerBitString.GetInstance(extra, false);
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break;
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}
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case 3:
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{
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if (isV2)
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throw new ArgumentException("version 2 certificate cannot contain extensions");
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extensions = X509Extensions.GetInstance(Asn1Sequence.GetInstance(extra, true));
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break;
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}
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default:
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{
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throw new ArgumentException("Unknown tag encountered in structure: " + extra.TagNo);
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}
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}
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extras--;
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}
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}
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public int Version
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{
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get { return version.IntValueExact + 1; }
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}
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public DerInteger VersionNumber
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{
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get { return version; }
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}
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public DerInteger SerialNumber
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{
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get { return serialNumber; }
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}
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public AlgorithmIdentifier Signature
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{
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get { return signature; }
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}
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public X509Name Issuer
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{
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get { return issuer; }
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}
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public Time StartDate
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{
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get { return startDate; }
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}
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public Time EndDate
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{
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get { return endDate; }
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}
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public X509Name Subject
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{
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get { return subject; }
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}
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public SubjectPublicKeyInfo SubjectPublicKeyInfo
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{
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get { return subjectPublicKeyInfo; }
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}
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public DerBitString IssuerUniqueID
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{
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get { return issuerUniqueID; }
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}
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public DerBitString SubjectUniqueID
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{
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get { return subjectUniqueID; }
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}
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public X509Extensions Extensions
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{
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get { return extensions; }
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}
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public override Asn1Object ToAsn1Object()
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{
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string property = Org.BouncyCastle.Utilities.Platform.GetEnvironmentVariable("Best.HTTP.SecureProtocol.Org.BouncyCastle.X509.Allow_Non-DER_TBSCert");
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if (null == property || Org.BouncyCastle.Utilities.Platform.EqualsIgnoreCase("true", property))
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return seq;
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Asn1EncodableVector v = new Asn1EncodableVector();
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// DEFAULT Zero
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if (!version.HasValue(0))
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{
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v.Add(new DerTaggedObject(true, 0, version));
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}
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v.Add(serialNumber, signature, issuer);
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//
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// before and after dates
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//
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v.Add(new DerSequence(startDate, endDate));
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if (subject != null)
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{
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v.Add(subject);
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}
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else
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{
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v.Add(DerSequence.Empty);
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}
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v.Add(subjectPublicKeyInfo);
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// Note: implicit tag
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v.AddOptionalTagged(false, 1, issuerUniqueID);
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// Note: implicit tag
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v.AddOptionalTagged(false, 2, subjectUniqueID);
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v.AddOptionalTagged(true, 3, extensions);
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return new DerSequence(v);
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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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