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using System;
using Org.BouncyCastle.Asn1.Pkcs;
namespace Org.BouncyCastle.Asn1.X509
{
/**
* The TbsCertificate object.
* <pre>
* TbsCertificate ::= Sequence {
* version [ 0 ] Version DEFAULT v1(0),
* serialNumber CertificateSerialNumber,
* signature AlgorithmIdentifier,
* issuer Name,
* validity Validity,
* subject Name,
* subjectPublicKeyInfo SubjectPublicKeyInfo,
* issuerUniqueID [ 1 ] IMPLICIT UniqueIdentifier OPTIONAL,
* subjectUniqueID [ 2 ] IMPLICIT UniqueIdentifier OPTIONAL,
* extensions [ 3 ] Extensions OPTIONAL
* }
* </pre>
* <p>
* Note: issuerUniqueID and subjectUniqueID are both deprecated by the IETF. This class
* will parse them, but you really shouldn't be creating new ones.</p>
*/
public class TbsCertificateStructure
: Asn1Encodable
{
internal Asn1Sequence seq;
internal DerInteger version;
internal DerInteger serialNumber;
internal AlgorithmIdentifier signature;
internal X509Name issuer;
internal Time startDate, endDate;
internal X509Name subject;
internal SubjectPublicKeyInfo subjectPublicKeyInfo;
internal DerBitString issuerUniqueID;
internal DerBitString subjectUniqueID;
internal X509Extensions extensions;
public static TbsCertificateStructure GetInstance(
Asn1TaggedObject obj,
bool explicitly)
{
return GetInstance(Asn1Sequence.GetInstance(obj, explicitly));
}
public static TbsCertificateStructure GetInstance(
object obj)
{
if (obj is TbsCertificateStructure)
return (TbsCertificateStructure) obj;
if (obj != null)
return new TbsCertificateStructure(Asn1Sequence.GetInstance(obj));
return null;
}
internal TbsCertificateStructure(
Asn1Sequence seq)
{
int seqStart = 0;
this.seq = seq;
//
// some certficates don't include a version number - we assume v1
//
if (seq[0] is DerTaggedObject)
{
version = DerInteger.GetInstance((Asn1TaggedObject)seq[0], true);
}
else
{
seqStart = -1; // field 0 is missing!
version = new DerInteger(0);
}
serialNumber = DerInteger.GetInstance(seq[seqStart + 1]);
signature = AlgorithmIdentifier.GetInstance(seq[seqStart + 2]);
issuer = X509Name.GetInstance(seq[seqStart + 3]);
//
// before and after dates
//
Asn1Sequence dates = (Asn1Sequence)seq[seqStart + 4];
startDate = Time.GetInstance(dates[0]);
endDate = Time.GetInstance(dates[1]);
subject = X509Name.GetInstance(seq[seqStart + 5]);
//
// public key info.
//
subjectPublicKeyInfo = SubjectPublicKeyInfo.GetInstance(seq[seqStart + 6]);
for (int extras = seq.Count - (seqStart + 6) - 1; extras > 0; extras--)
{
DerTaggedObject extra = (DerTaggedObject) seq[seqStart + 6 + extras];
switch (extra.TagNo)
{
case 1:
issuerUniqueID = DerBitString.GetInstance(extra, false);
break;
case 2:
subjectUniqueID = DerBitString.GetInstance(extra, false);
break;
case 3:
extensions = X509Extensions.GetInstance(extra);
break;
}
}
}
public int Version
{
get { return version.Value.IntValue + 1; }
}
public DerInteger VersionNumber
{
get { return version; }
}
public DerInteger SerialNumber
{
get { return serialNumber; }
}
public AlgorithmIdentifier Signature
{
get { return signature; }
}
public X509Name Issuer
{
get { return issuer; }
}
public Time StartDate
{
get { return startDate; }
}
public Time EndDate
{
get { return endDate; }
}
public X509Name Subject
{
get { return subject; }
}
public SubjectPublicKeyInfo SubjectPublicKeyInfo
{
get { return subjectPublicKeyInfo; }
}
public DerBitString IssuerUniqueID
{
get { return issuerUniqueID; }
}
public DerBitString SubjectUniqueID
{
get { return subjectUniqueID; }
}
public X509Extensions Extensions
{
get { return extensions; }
}
public override Asn1Object ToAsn1Object()
{
return seq;
}
}
}
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