private LinkedCertificate(Asn1Sequence seq)
{
this.mDigest = DigestInfo.GetInstance(seq[0]);
this.mCertLocation = GeneralName.GetInstance(seq[1]);
for (int i = 2; i < seq.Count; ++i)
{
Asn1TaggedObject tagged = Asn1TaggedObject.GetInstance(seq[i]);
switch (tagged.TagNo)
{
case 0:
this.mCertIssuer = X509Name.GetInstance(tagged, false);
break;
case 1:
this.mCACerts = GeneralNames.GetInstance(tagged, false);
break;
default:
throw new ArgumentException("unknown tag in tagged field");
}
}
}
public SemanticsInformation(
Asn1Sequence seq)
{
if (seq.Count < 1)
{
throw new ArgumentException("no objects in SemanticsInformation");
}
IEnumerator e = seq.GetEnumerator();
e.MoveNext();
object obj = e.Current;
if (obj is DerObjectIdentifier)
{
semanticsIdentifier = DerObjectIdentifier.GetInstance(obj);
if (e.MoveNext())
{
obj = e.Current;
}
else
{
obj = null;
}
}
if (obj != null)
{
Asn1Sequence generalNameSeq = Asn1Sequence.GetInstance(obj);
nameRegistrationAuthorities = new GeneralName[generalNameSeq.Count];
for (int i = 0; i < generalNameSeq.Count; i++)
{
nameRegistrationAuthorities[i] = GeneralName.GetInstance(generalNameSeq[i]);
}
}
}
private RoleSyntax(Asn1Sequence seq)
{
if (seq.Count < 1 || seq.Count > 2)
{
throw new ArgumentException("Bad sequence size: " + seq.Count);
}
for (int i = 0; i != seq.Count; i++)
{
Asn1TaggedObject instance = Asn1TaggedObject.GetInstance(seq[i]);
switch (instance.TagNo)
{
case 0:
roleAuthority = GeneralNames.GetInstance(instance, explicitly: false);
break;
case 1:
roleName = GeneralName.GetInstance(instance, explicitly: true);
break;
default:
throw new ArgumentException("Unknown tag in RoleSyntax");
}
}
}
//Get OCSP URLs from a certificate by checking the extensions, finding the OCSP extension and extracting its URLs.
public static List <string> GetAuthorityInformationAccessOcspUrl(X509Certificate cert)
{
List <string> ocspUrls = new List <string>();
try
{
Asn1Object obj = GetExtensionValue(cert, X509Extensions.AuthorityInfoAccess.Id);
if (obj == null)
{
return(null);
}
Asn1Sequence s = (Asn1Sequence)obj;
IEnumerator elements = s.GetEnumerator();
while (elements.MoveNext())
{
Asn1Sequence element = (Asn1Sequence)elements.Current;
DerObjectIdentifier oid = (DerObjectIdentifier)element[0];
if (oid.Id.Equals(OCSP_OID)) // Is OID == OCSP?
{
Asn1TaggedObject taggedObject = (Asn1TaggedObject)element[1];
GeneralName gn = (GeneralName)GeneralName.GetInstance(taggedObject);
ocspUrls.Add(((DerIA5String)DerIA5String.GetInstance(gn.Name)).GetString());
}
}
}
catch (Exception e)
{
throw new OCSPExpection("Error parsing AIA.", e);
}
return(ocspUrls);
}
private CertId(Asn1Sequence seq)
{
issuer = GeneralName.GetInstance(seq[0]);
serialNumber = DerInteger.GetInstance(seq[1]);
}
/**
* Adds a target group criterion for the attribute certificate to the target
* information extension criteria. The <code>X509AttributeCertificate</code>
* must contain at least one of the specified target groups.
* <p>
* Each attribute certificate may contain a target information extension
* limiting the servers where this attribute certificate can be used. If
* this extension is not present, the attribute certificate is not targeted
* and may be accepted by any server.
* </p>
*
* @param name a byte array containing the group in ASN.1 DER encoded form of a GeneralName
* @throws IOException if a parsing error occurs.
*/
public void AddTargetGroup(
byte[] name)
{
AddTargetGroup(GeneralName.GetInstance(Asn1Object.FromByteArray(name)));
}
private TstInfo(
Asn1Sequence seq)
{
IEnumerator e = seq.GetEnumerator();
// version
e.MoveNext();
version = DerInteger.GetInstance(e.Current);
// tsaPolicy
e.MoveNext();
tsaPolicyId = DerObjectIdentifier.GetInstance(e.Current);
// messageImprint
e.MoveNext();
messageImprint = MessageImprint.GetInstance(e.Current);
// serialNumber
e.MoveNext();
serialNumber = DerInteger.GetInstance(e.Current);
// genTime
e.MoveNext();
genTime = DerGeneralizedTime.GetInstance(e.Current);
// default for ordering
ordering = DerBoolean.False;
while (e.MoveNext())
{
Asn1Object o = (Asn1Object)e.Current;
if (o is Asn1TaggedObject)
{
DerTaggedObject tagged = (DerTaggedObject)o;
switch (tagged.TagNo)
{
case 0:
tsa = GeneralName.GetInstance(tagged, true);
break;
case 1:
extensions = X509Extensions.GetInstance(tagged, false);
break;
default:
throw new ArgumentException("Unknown tag value " + tagged.TagNo);
}
}
if (o is DerSequence)
{
accuracy = Accuracy.GetInstance(o);
}
if (o is DerBoolean)
{
ordering = DerBoolean.GetInstance(o);
}
if (o is DerInteger)
{
nonce = DerInteger.GetInstance(o);
}
}
}
public void CheckCertificate(
int id,
byte[] cert)
{
Asn1Object seq = Asn1Object.FromByteArray(cert);
string dump = Asn1Dump.DumpAsString(seq);
X509CertificateStructure obj = X509CertificateStructure.GetInstance(seq);
TbsCertificateStructure tbsCert = obj.TbsCertificate;
if (!tbsCert.Subject.ToString().Equals(subjects[id - 1]))
{
Fail("failed subject test for certificate id " + id
+ " got " + tbsCert.Subject.ToString());
}
if (tbsCert.Version >= 3)
{
X509Extensions ext = tbsCert.Extensions;
if (ext != null)
{
foreach (DerObjectIdentifier oid in ext.ExtensionOids)
{
X509Extension extVal = ext.GetExtension(oid);
Asn1Object extObj = Asn1Object.FromByteArray(extVal.Value.GetOctets());
if (oid.Equals(X509Extensions.SubjectKeyIdentifier))
{
SubjectKeyIdentifier.GetInstance(extObj);
}
else if (oid.Equals(X509Extensions.KeyUsage))
{
KeyUsage.GetInstance(extObj);
}
else if (oid.Equals(X509Extensions.ExtendedKeyUsage))
{
ExtendedKeyUsage ku = ExtendedKeyUsage.GetInstance(extObj);
Asn1Sequence sq = (Asn1Sequence)ku.ToAsn1Object();
for (int i = 0; i != sq.Count; i++)
{
KeyPurposeID.GetInstance(sq[i]);
}
}
else if (oid.Equals(X509Extensions.SubjectAlternativeName))
{
GeneralNames gn = GeneralNames.GetInstance(extObj);
Asn1Sequence sq = (Asn1Sequence)gn.ToAsn1Object();
for (int i = 0; i != sq.Count; i++)
{
GeneralName.GetInstance(sq[i]);
}
}
else if (oid.Equals(X509Extensions.IssuerAlternativeName))
{
GeneralNames gn = GeneralNames.GetInstance(extObj);
Asn1Sequence sq = (Asn1Sequence)gn.ToAsn1Object();
for (int i = 0; i != sq.Count; i++)
{
GeneralName.GetInstance(sq[i]);
}
}
else if (oid.Equals(X509Extensions.CrlDistributionPoints))
{
CrlDistPoint p = CrlDistPoint.GetInstance(extObj);
DistributionPoint[] points = p.GetDistributionPoints();
for (int i = 0; i != points.Length; i++)
{
// do nothing
}
}
else if (oid.Equals(X509Extensions.CertificatePolicies))
{
Asn1Sequence cp = (Asn1Sequence)extObj;
for (int i = 0; i != cp.Count; i++)
{
PolicyInformation.GetInstance(cp[i]);
}
}
else if (oid.Equals(X509Extensions.AuthorityKeyIdentifier))
{
AuthorityKeyIdentifier.GetInstance(extObj);
}
else if (oid.Equals(X509Extensions.BasicConstraints))
{
BasicConstraints.GetInstance(extObj);
}
else
{
//Console.WriteLine(oid.Id);
}
}
}
}
}
/// <summary>
/// Extract AIA URL. It can be AIA OCSP or AIA Issuer
/// </summary>
/// <param name="taggedObject"></param>
/// <returns></returns>
string ExtractAIAUrl(Asn1TaggedObject taggedObject)
{
var gn = (GeneralName)GeneralName.GetInstance(taggedObject);
return(((DerIA5String)DerIA5String.GetInstance(gn.Name)).GetString());
}
public void AddTargetName(byte[] name)
{
this.AddTargetName(GeneralName.GetInstance(Asn1Object.FromByteArray(name)));
}
