i"m doing my final year project in AES algorithm.........i wrote coding for 128 bits its working sucessful,,,,,,,,,,, if input s greater than 128 bits how to modify my prog???????????

I expect it's http://en.wikipedia.org/wiki/Advanced_Encryption_Standard.

It's not obvious why this is anything to do with Verilog-AMS (presumably it's pure digital Verilog?), or how the original poster realistically expects anyone to help him given the complete lack of information in the posting!

SUBU - read your post, and think about whether anyone could know how you've programmed this, to be able to offer any suggestions to improve things?

Generally speaking, the more specific your question, the more likely you are to get an answer.

Regards,

Andrew.