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

Erwann ABALEA erwann at abalea.com
Tue Nov 21 16:31:02 EST 2017

2017-11-21 19:20 GMT+01:00 James A. Donald <jamesd at echeque.com>:

> 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.

asn1c (http://lionet.info/asn1c/compiler.html), BSD license. If you're not
extensively playing with IOC, it should compile your modules.
Just don't use SET OF, and the encoding should be canonical.

Let alone manage the sockets and protocol negotiation when forming a
> connection

This has nothing to do with the ASN.1 compiler.

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