Can anyone with enough knowledge of X.690 tell me where can I find the official reference implementation for the universal class tags for X.690. (For example: For TLS we can reference RFC 5246.) When I look at line 565 and the lines after it, that makes me wonder how do they know the correct way to implement, let's say
I've been trying to find the open source implementation of
Relative-OID (13) and
Character-String (29). Tried looking at bouncy castle but nothing shows up.