I just did a quick search on the web and it seems like ASN.1 has a
UTF8String type (with tag 12) that just contains the sequence of bytes of
the UTF-8-encoded string. Can you use that? See also this question on
stackoverflow: https://stackoverflow.com/q/28929809

In Squeak, you can convert between UTF-8-encoded byte strings and decoded
(Squeak-encoded) character strings with the help of UTF8TextConverter. Have
a look at its class-side methods. Also, there are conversion methods in
String, IIRC. Try to filter its instance-side methods by "utf8".

Does this answer your question or are you in search of something else?

Kind regards,
Jakob

Am 18.09.2017 03:49 schrieb "Alan Pinch" <alan.c.pinch at gmail.com>:

> I am trying to map utf8 into an ASN1 encoding, where the UTF8 is
> specified to perhaps extend past one byte in value. I am also interested
> in retaining this UTF8 characters in squeak to interoperate well. What
> would be my best approach to this, mapping to/from these bytes on a stream?
>
> Alan
>
>
>
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