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using System;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.Tsp
{
public class TimeStampReq
: Asn1Encodable
{
private readonly DerInteger m_version;
private readonly MessageImprint m_messageImprint;
private readonly DerObjectIdentifier m_tsaPolicy;
private readonly DerInteger m_nonce;
private readonly DerBoolean m_certReq;
private readonly X509Extensions m_extensions;
public static TimeStampReq GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is TimeStampReq timeStampReq)
return timeStampReq;
return new TimeStampReq(Asn1Sequence.GetInstance(obj));
}
public static TimeStampReq GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return new TimeStampReq(Asn1Sequence.GetInstance(taggedObject, declaredExplicit));
}
private TimeStampReq(Asn1Sequence seq)
{
int nbObjects = seq.Count;
int seqStart = 0;
// version
m_version = DerInteger.GetInstance(seq[seqStart++]);
// messageImprint
m_messageImprint = MessageImprint.GetInstance(seq[seqStart++]);
for (int opt = seqStart; opt < nbObjects; opt++)
{
// tsaPolicy
if (seq[opt] is DerObjectIdentifier oid)
{
m_tsaPolicy = oid;
}
// nonce
else if (seq[opt] is DerInteger derInteger)
{
m_nonce = derInteger;
}
// certReq
else if (seq[opt] is DerBoolean derBoolean)
{
m_certReq = derBoolean;
}
// extensions
else if (seq[opt] is Asn1TaggedObject tagged)
{
if (tagged.TagNo == 0)
{
m_extensions = X509Extensions.GetInstance(tagged, false);
}
}
}
}
public TimeStampReq(MessageImprint messageImprint, DerObjectIdentifier tsaPolicy, DerInteger nonce,
DerBoolean certReq, X509Extensions extensions)
{
// default
m_version = new DerInteger(1);
m_messageImprint = messageImprint;
m_tsaPolicy = tsaPolicy;
m_nonce = nonce;
m_certReq = certReq;
m_extensions = extensions;
}
public DerInteger Version => m_version;
public MessageImprint MessageImprint => m_messageImprint;
public DerObjectIdentifier ReqPolicy => m_tsaPolicy;
public DerInteger Nonce => m_nonce;
public DerBoolean CertReq => m_certReq;
public X509Extensions Extensions => m_extensions;
/**
* <pre>
* TimeStampReq ::= SEQUENCE {
* version INTEGER { v1(1) },
* messageImprint MessageImprint,
* --a hash algorithm OID and the hash value of the data to be
* --time-stamped
* reqPolicy TSAPolicyId OPTIONAL,
* nonce INTEGER OPTIONAL,
* certReq BOOLEAN DEFAULT FALSE,
* extensions [0] IMPLICIT Extensions OPTIONAL
* }
* </pre>
*/
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector v = new Asn1EncodableVector(6);
v.Add(m_version, m_messageImprint);
v.AddOptional(m_tsaPolicy, m_nonce);
if (m_certReq != null && m_certReq.IsTrue)
{
v.Add(m_certReq);
}
v.AddOptionalTagged(false, 0, m_extensions);
return new DerSequence(v);
}
}
}
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