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 T-61String.

I've been trying to find the open source implementation of EMBEDDED-PDV (11), Relative-OID (13) and Character-String (29). Tried looking at bouncy castle but nothing shows up.


Okay, I think I've found it. The link below are for those who might need it:

  1. http://www.oss.com/asn1/dubuisson.html
  2. http://www.itu.int/rec/dologin_pub.asp?lang=e&id=T-REC-X.690-200811-S!!PDF-E&type=items
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