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 CrlEntry(
Asn1Sequence seq)
{
if (seq.Count < 2 || seq.Count > 3)
{
throw new ArgumentException("Bad sequence size: " + seq.Count);
}
this.seq = seq;
userCertificate = DerInteger.GetInstance(seq[0]);
revocationDate = Time.GetInstance(seq[1]);
}
internal TbsCertificateList(
Asn1Sequence seq)
{
if (seq.Count < 3 || seq.Count > 7)
{
throw new ArgumentException("Bad sequence size: " + seq.Count);
}
int seqPos = 0;
this.seq = seq;
if (seq[seqPos] is DerInteger)
{
version = DerInteger.GetInstance(seq[seqPos++]);
}
else
{
version = new DerInteger(0);
}
signature = AlgorithmIdentifier.GetInstance(seq[seqPos++]);
issuer = X509Name.GetInstance(seq[seqPos++]);
thisUpdate = Time.GetInstance(seq[seqPos++]);
if (seqPos < seq.Count &&
(seq[seqPos] is DerUtcTime ||
seq[seqPos] is DerGeneralizedTime ||
seq[seqPos] is Time))
{
nextUpdate = Time.GetInstance(seq[seqPos++]);
}
if (seqPos < seq.Count &&
!(seq[seqPos] is DerTaggedObject))
{
revokedCertificates = Asn1Sequence.GetInstance(seq[seqPos++]);
}
if (seqPos < seq.Count &&
seq[seqPos] is DerTaggedObject)
{
crlExtensions = X509Extensions.GetInstance(seq[seqPos]);
}
}