Tony,

Thanks for the links.  We are currently working on a full version of ASN.1
in the cryptography group
http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/cryptography (I
know you are already a member, the link is a shameless plug for new members)

The version that Paul Davidowitz is working on is almost complete and we
could use some volunteers to help review and test the implementation once it
is completed.

I was trying to avoid unnecessary complication and definition transfer since
I'm moving data from squeak to squeak, I know I need ASN.1 for things like
X.12 where I'm going from squeak to the world.  Although it does seem silly
to throw yet another custom protocol, so I'll give it a try with Paul's
pre-Alpha code and see how far I get.

Thanks Tony!

Ron Teitelbaum

> -----Original Message-----
> From: Tony Garnock-Jones [mailto:tonyg at lshift.net]
> Sent: Wednesday, June 07, 2006 4:42 AM
> To: Ron at USMedRec.com; The general-purpose Squeak developers list
> Subject: Re: How safe is this?
> 
> Ron Teitelbaum wrote:
> > Is this the best way to do mixed alpha and binary or can anyone suggest
> > better ways to pass context info, for example like in headers or to map
> XML
> > like structures to Binary or a way to detect and translate what is a
> string
> > and what is a number in a byteArray?
> 
> ASN.1 with BER/PER/DER? While a full ASN.1 implementation for Squeak
> would be nice ;-) , a custom codec that simply makes use of ASN.1 rules
> will probably get the job done for you... and you get a nice
> well-understood description of your data structure as documentation, as
> well.
> 
> http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf
> http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
> http://www.iana.org/assignments/enterprise-numbers