[Cryptography] [FORGED] Re: Is ASN.1 still the thing?

James A. Donald jamesd at echeque.com
Tue Nov 21 13:20:45 EST 2017

On 11/16/2017 3:10 AM, Nico Williams wrote:
> Everything we've discussed in this thread, from TLV vs. XDR-like vs.
> textual vs. markup encodings, canonical vs. not, online vs. not,
> extensibility, notation, mapping to/from other schemes (e.g., XML
> Schema) -- it's all there in ASN.1's history, and, indeed, in the
> x.68x and x.69x specification series.  We have decades of experience
> with ASN.1 in the ITU-T and IETF, and in the communities that
> implement protocols that use it.

I could not find a tool that would produce canonical byte aligned PER 
decoding and encoding on both Windows and Linux that did not involve a 
frightening and confusing license.

Let alone manage the sockets and protocol negotiation when forming a 

> When you reinvent a wheel with this much history, you will almost
> certainly miss important ideas if you don't look at that history.
> And, with this much history, you might as well just _use_ ASN.1 and only
> build new tools as needed.  New encoding rules make sense for interop
> with existing other systems, but that's about it.

I have no plans to reinvent the wheel.  I am looking for a wheel someone 
else has built.  ASN/1 PER was the first thing I looked at. There seem 
to be an absurdly large number of wheels available, but ASN.1 PER is not 
one of them.

This email has been checked for viruses by Avast antivirus software.

More information about the cryptography mailing list