private LdsSecurityObject(
Asn1Sequence seq)
{
if (seq == null || seq.Count == 0)
throw new ArgumentException("null or empty sequence passed.");
IEnumerator e = seq.GetEnumerator();
// version
e.MoveNext();
version = DerInteger.GetInstance(e.Current);
// digestAlgorithmIdentifier
e.MoveNext();
digestAlgorithmIdentifier = AlgorithmIdentifier.GetInstance(e.Current);
e.MoveNext();
Asn1Sequence datagroupHashSeq = Asn1Sequence.GetInstance(e.Current);
if (version.Value.Equals(BigInteger.One))
{
e.MoveNext();
versionInfo = LdsVersionInfo.GetInstance(e.Current);
}
CheckDatagroupHashSeqSize(datagroupHashSeq.Count);
datagroupHash = new DataGroupHash[datagroupHashSeq.Count];
for (int i= 0; i< datagroupHashSeq.Count; i++)
{
datagroupHash[i] = DataGroupHash.GetInstance(datagroupHashSeq[i]);
}
}
public DHParameter(
Asn1Sequence seq)
{
IEnumerator e = seq.GetEnumerator();
e.MoveNext();
p = (DerInteger)e.Current;
e.MoveNext();
g = (DerInteger)e.Current;
if (e.MoveNext())
{
l = (DerInteger) e.Current;
}
}
private SignedData(
Asn1Sequence seq)
{
IEnumerator e = seq.GetEnumerator();
e.MoveNext();
version = (DerInteger) e.Current;
e.MoveNext();
digestAlgorithms = (Asn1Set) e.Current;
e.MoveNext();
contentInfo = ContentInfo.GetInstance(e.Current);
while (e.MoveNext())
{
Asn1Object o = (Asn1Object) e.Current;
//
// an interesting feature of SignedData is that there appear to be varying implementations...
// for the moment we ignore anything which doesn't fit.
//
if (o is DerTaggedObject)
{
DerTaggedObject tagged = (DerTaggedObject) o;
switch (tagged.TagNo)
{
case 0:
certificates = Asn1Set.GetInstance(tagged, false);
break;
case 1:
crls = Asn1Set.GetInstance(tagged, false);
break;
default:
throw new ArgumentException("unknown tag value " + tagged.TagNo);
}
}
else
{
signerInfos = (Asn1Set) o;
}
}
}
public SignerInfo(
Asn1Sequence seq)
{
IEnumerator e = seq.GetEnumerator();
e.MoveNext();
version = (DerInteger) e.Current;
e.MoveNext();
sid = SignerIdentifier.GetInstance(e.Current);
e.MoveNext();
digAlgorithm = AlgorithmIdentifier.GetInstance(e.Current);
e.MoveNext();
object obj = e.Current;
if (obj is Asn1TaggedObject)
{
authenticatedAttributes = Asn1Set.GetInstance((Asn1TaggedObject) obj, false);
e.MoveNext();
digEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(e.Current);
}
else
{
authenticatedAttributes = null;
digEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(obj);
}
e.MoveNext();
encryptedDigest = DerOctetString.GetInstance(e.Current);
if (e.MoveNext())
{
unauthenticatedAttributes = Asn1Set.GetInstance((Asn1TaggedObject) e.Current, false);
}
else
{
unauthenticatedAttributes = null;
}
}
