/**
* test for equivalence - note: case is ignored.
*/
public bool Equivalent(
X509Name other)
{
if (other == null)
{
return(false);
}
if (other == this)
{
return(true);
}
int orderingSize = ordering.Count;
if (orderingSize != other.ordering.Count)
{
return(false);
}
bool[] indexes = new bool[orderingSize];
int start, end, delta;
if (ordering[0].Equals(other.ordering[0])) // guess forward
{
start = 0;
end = orderingSize;
delta = 1;
}
else // guess reversed - most common problem
{
start = orderingSize - 1;
end = -1;
delta = -1;
}
for (int i = start; i != end; i += delta)
{
bool found = false;
DerObjectIdentifier oid = (DerObjectIdentifier)ordering[i];
string value = (string)values[i];
for (int j = 0; j < orderingSize; j++)
{
if (indexes[j])
{
continue;
}
DerObjectIdentifier oOid = (DerObjectIdentifier)other.ordering[j];
if (oid.Equals(oOid))
{
string oValue = (string)other.values[j];
if (equivalentStrings(value, oValue))
{
indexes[j] = true;
found = true;
break;
}
}
}
if (!found)
{
return(false);
}
}
return(true);
}
public void SetIssuer(
X509Name issuer)
{
this.issuer = issuer;
}
public void SetSubject(
X509Name subject)
{
this.subject = subject;
}
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 Asn1TaggedObject)
{
version = DerInteger.GetInstance((Asn1TaggedObject)seq[0], true);
}
else
{
seqStart = -1; // field 0 is missing!
version = new DerInteger(0);
}
bool isV1 = false;
bool isV2 = false;
if (version.Value.Equals(BigInteger.Zero))
{
isV1 = true;
}
else if (version.Value.Equals(BigInteger.One))
{
isV2 = true;
}
else if (!version.Value.Equals(BigInteger.Two))
{
throw new ArgumentException("version number not recognised");
}
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]);
int extras = seq.Count - (seqStart + 6) - 1;
if (extras != 0 && isV1)
{
throw new ArgumentException("version 1 certificate contains extra data");
}
while (extras > 0)
{
Asn1TaggedObject extra = Asn1TaggedObject.GetInstance(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:
{
if (isV2)
{
throw new ArgumentException("version 2 certificate cannot contain extensions");
}
extensions = X509Extensions.GetInstance(Asn1Sequence.GetInstance(extra, true));
break;
}
default:
{
throw new ArgumentException("Unknown tag encountered in structure: " + extra.TagNo);
}
}
extras--;
}
}
