How to initialize ASN1ObjectIdentifier from an OID string which contains components larger than int max value?

Question

I am trying to reference an unregistered ASN.1 Object Identifier which is compliant with the {joint-iso-itu-t(2) uuid(25)} arc. I am using the com.objsys.asn1j.runtime package.

But it seems that the asn1rt library only accepts int[] as identifier. I can't pass the value of the UUID component of the OID string as int as such:

    public Asn1ObjectIdentifier getAttributeOID() {
        
        int[] identifierValue = { 2, 25, singleIntegerValue}; // last part is greater than int max
        return new Asn1ObjectIdentifier(identifierValue);
    }

I have tried to use the decode method as explained in the objsys.com docs as following:

    public Asn1ObjectIdentifier getAttributeOID() {

        //uuid part is converted to integer value from uuid according to ITU-T X.667 Section 6.3 using 

        String oid = "2.25.142312163956071652603888631318689442116"; 
        Asn1BerDecodeBuffer decodeBuffer = new Asn1BerDecodeBuffer(oid.getBytes(StandardCharsets.UTF_8));
        Asn1ObjectIdentifier asn1ObjectIdentifier = new Asn1ObjectIdentifier();

        try {
            asn1ObjectIdentifier.decode(decodeBuffer, false, oid.length());
        } catch (IOException e) {
            throw new RuntimeException(e);
        }

        return asn1ObjectIdentifier;
    }

However this approach also does not get me the correct identifier value in the resulting object. It outputs something like this:

  1.10.46.50.53.46.49.52.50.51.49.50.49.54.51.57.53.54.48.55.49.54.53.50.54.48.51.…

I have also failed when trying BouncyCastle to encode the object identifier and then tried to decode it with the api from the com.objsys.asn1j.runtime package. Didn't work.

Answer 1

Obj-sys documentation shows that the java mapping for OBJECT IDENTIFIER is an array of int (so it's a limitation)

I'm surprised you ask the question here, they have a contact form