ascon 0.1.0

A implementation of ASCON authenticated encryption. support `no_std` environment.
Documentation
ASCON
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A implementation of [ASCON](http://ascon.iaik.tugraz.at) authenticated encryption. support `no_std` environment.

* [CAESAR competition]http://competitions.cr.yp.to/caesar.html
* [Ascon Analysis]http://ascon.iaik.tugraz.at/analysis.html