DRBG pre-announce and a discussion on RNG/Crypto infrastructure

[Thomas DuBuisson]

> Why not use the Edward Kmett's 'tagged'[1] package for these methods? As in:
>
> outputLength :: Tagged d BitLength
>
> This way users don't have to write the dangerous 'undefined :: d'.

Because I had not heard of that package.  The package (and general
method) look good, I'll probably switch to that. Thanks for the
pointer.

Cheers,
Thomas