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From: Paul Rubin <no.email@nospam.invalid>
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Subject: Re: EuroForth 2015 paper deadline approaching
Date: Mon, 02 Nov 2015 12:43:14 -0800
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Mark Wills <markwills1970@gmail.com> writes:
> TI has a free SHA implementation on their website. It's in C But you
> might be able to port it. http://www.ti.com/tool/sha-256

There's tons of C implementations around and I wrote one myself.  It
would be cool to have one in Forth.  That Launchpad is just so perfect
for an interactive Forth system, since it has 128KB of non-volatile
FRAM.  Avoids most of the headaches of flash vs. RAM.  

> Also, some MSP430 parts have hardware AES encryption built in to the silicon. 

The TOTP protocol requires SHA1.