public string FormatValue()
{
if (Type == DERTagType.Universal)
{
UniversalTag tag = (UniversalTag)Tag;
switch (tag)
{
case UniversalTag.GeneralString:
return(ReadGeneralString());
case UniversalTag.OBJECT_IDENTIFIER:
return(ReadObjID());
case UniversalTag.INTEGER:
case UniversalTag.ENUMERATED:
return(FormatInteger());
case UniversalTag.OCTET_STRING:
return(BitConverter.ToString(Data));
case UniversalTag.BIT_STRING:
return(string.Join(",", ReadBitString().Cast <bool>().Select(b => b ? 1 : 0)));
case UniversalTag.UTF8String:
case UniversalTag.IA5String:
return(ReadString(tag));
case UniversalTag.GeneralizedTime:
return(ReadGeneralizedTime());
}
}
return($"Len: {Data.Length:X}");
}
public string FormatValue()
{
if (Type == DERTagType.Universal)
{
UniversalTag tag = (UniversalTag)Tag;
if (tag == UniversalTag.GeneralString)
{
return(ReadGeneralString());
}
if (tag == UniversalTag.OBJECT_IDENTIFIER)
{
return(ReadObjID());
}
if (tag == UniversalTag.INTEGER || tag == UniversalTag.ENUMERATED)
{
return(FormatInteger());
}
if (tag == UniversalTag.OCTET_STRING)
{
return(BitConverter.ToString(Data));
}
if (tag == UniversalTag.BIT_STRING)
{
return(string.Join(",", ReadBitString().Cast <bool>().Select(b => b ? 1 : 0)));
}
}
return($"Len: {Data.Length:X}");
}
public string ReadString(UniversalTag tag_type)
{
if (!CheckPrimitive(tag_type))
{
throw new InvalidDataException();
}
switch (tag_type)
{
case UniversalTag.GeneralString:
return(Encoding.ASCII.GetString(Data));
case UniversalTag.IA5String:
return(Encoding.ASCII.GetString(Data));
case UniversalTag.UTF8String:
return(Encoding.UTF8.GetString(Data));
case UniversalTag.GeneralizedTime:
return(Encoding.ASCII.GetString(Data));
default:
throw new InvalidDataException();
}
}
public bool CheckPrimitive(UniversalTag tag)
{
return(Check(false, DERTagType.Universal, (int)tag));
}
public static void WriteUniversalValue(this BinaryWriter writer, bool constructed, UniversalTag tag, Action <BinaryWriter> data_builder)
{
MemoryStream stm = new MemoryStream();
data_builder(new BinaryWriter(stm));
WriteTaggedValue(writer, DERTagType.Universal, constructed, (int)tag, stm.ToArray());
}
public static void WriteUniversalValue(this BinaryWriter writer, bool constructed, UniversalTag tag, byte[] data)
{
WriteTaggedValue(writer, DERTagType.Universal, constructed, (int)tag, data);
}
public ASN1PropertyAttribute(UniversalTag tag) : this(0, (int)tag)
{
}
