I am currently now working on a project which is exactly not in accordiance with AES algorithm bcoz in AES plaintext and key input is given and corresponding ciphertext has been generated......but in this case cipher and plaintext is provided corresponding key has to be generated.In this part a comparator has been used for comparing the plain and the cipher and a key counter provided for the 10 rounds of key according to key scheduling process.
I have written the code its running fine...o/p is also coming..ok...but the main problem is that i have to minimize the slice registers.till now it is in report 54%.I have done almost everything like some modification in code,through synthesis properties,block ram instantion but still it is not reducing for a single percentage....what should i do now...please anybody help me