static public ASN1 FromString(string rdn)
{
if (rdn == null)
{
throw new ArgumentNullException("rdn");
}
int pos = 0;
ASN1 asn1 = new ASN1(0x30);
while (pos < rdn.Length)
{
X520.AttributeTypeAndValue atv = ReadAttribute(rdn, ref pos);
atv.Value = ReadValue(rdn, ref pos);
ASN1 sequence = new ASN1(0x31);
sequence.Add(atv.GetASN1());
asn1.Add(sequence);
}
return(asn1);
}
private static X520.AttributeTypeAndValue ReadAttribute(string value, ref int pos)
{
while ((value[pos] == ' ') && (pos < value.Length))
{
pos++;
}
int index = value.IndexOf('=', pos);
if (index == -1)
{
throw new FormatException(Locale.GetText("No attribute found."));
}
string attributeType = value.Substring(pos, index - pos);
X520.AttributeTypeAndValue attributeFromOid = GetAttributeFromOid(attributeType);
if (attributeFromOid == null)
{
throw new FormatException(string.Format(Locale.GetText("Unknown attribute '{0}'."), attributeType));
}
pos = index + 1;
return(attributeFromOid);
}
private static X520.AttributeTypeAndValue ReadAttribute(string value, ref int pos)
{
while (value[pos] == ' ' && pos < value.Length)
{
pos++;
}
int num = value.IndexOf('=', pos);
if (num == -1)
{
string text = Locale.GetText("No attribute found.");
throw new FormatException(text);
}
string text2 = value.Substring(pos, num - pos);
X520.AttributeTypeAndValue attributeFromOid = X501.GetAttributeFromOid(text2);
if (attributeFromOid == null)
{
string text3 = Locale.GetText("Unknown attribute '{0}'.");
throw new FormatException(string.Format(text3, text2));
}
pos = num + 1;
return(attributeFromOid);
}