Encrypting parts of a cyclone II FPGA

[Altera_Forum]

Hi! 

 I'm currently working on a project with Quartus II 11.1sp2. The FPGA I use is a Cyclone II EP2C5T144C8.  I wonder if it is possible to encrypt partially the FPGA chip in order to protect IPs and the behavior of the board I'm working on. I want to let a restricted zone reachable by a user where he could add his logic.   Thanks for help,    Florian

[Altera_Forum]

Hi, I don't think possible to encrypt or decrypt user design files with Quartus tool. 

 https://www.altera.com/support/support-resources/knowledge-base/solutions/rd10172006_472.html  http://www.alteraforum.com/forum/showthread.php?t=4746

[Altera_Forum]

If you wish, you can contact altera local sales for this

[Altera_Forum]

Thx for your answers