Help me if you know HDCP

[lostin_eda]

Have you ever designed HDCP?
Can you give me some advice on how to generate Pseudorandom value An.
HDCP standard doesnt describe in detail.
thank you

 

[abaidullah]

Please visit following page ... it might help you

http://www.freedom-to-tinker.com/?p=1005!

PN value can be generated by using a linear shift register with feedback and xor operation

 

[joc_06]

Ask away - although im not on here much.

An is pseudo random 64 bit value so it can be anything. I use LFSR random number generator to do this.

It can also just be constant, or even 0.

Anything will do really!