| Feb 5, 2017 | changed license | Balazs, Fekete |
| Aug 10, 2014 | corrected speed info | Balazs, Fekete |
| Apr 5, 2014 | Keyexpansion.vhd line 66 generates errors with ModelSim and Synplify however still works properly with Xilinx tools | Balazs, Fekete |
| Jan 31, 2014 | updated design info | Balazs, Fekete |
| Jan 30, 2014 | added basic description | Balazs, Fekete |