Changes compared to phase 1 : Edon80 is kept unchanged
compared to eSTREAM phase 1. The authors motivate this in a note. The archived phase
1 page on Edon80 can be found here.
Implementation:
Markus Kasper, Sandeep Kumar, Kerstin Lemke-Rust and Christof Paar, "A Compact Implementation of Edon80", pdf.