what's the format of the bitsream?

[craftfox]

I will do a project to secure configuration for the FPGA. Now i want to use the partial-encryption technique, so i want to find the real format of the bitstream file. Can you give me some advice, some useful link/page/paper/thesis/, and so on?

thanks you a lot!!

craftfox

 

[tut]

Hi there,
u can have a look at pages 19-23 of XAPP 176 https://www.xilinx.com/bvdocs/appnotes/xapp176.pdf
It has the brief description for the standard bit stream.

 

[guybrush]

Why you don't use a Vitex2 that has the possibility to use an encrypted bitstream?
Or if you want a more secure design you can use an Actel FPGA that has no external memory.

 

[craftfox]

This project has one special object: to research all the possible methods to secure the FPGA design. I think that the bitstream is the IP of the source desinger, so the secure of it will promise the security of the FPGA design. But all the company have not give the format of their FPGA publicly.

 

[tut]

Check this link..
It has some info regarding Bitstream..

http://neil.franklin.ch/Usenet/comp.arch.fpga/20030610_What_s_in_a_bitstream

tut..