CSS Question Paper solution May 2023 Duration: 3hrs [Max Marks:80]  1 a) Describe services and mechanisms.  CSS Answer : https://www.doubtly.in/q/describe-services-mechanisms-css/ 1 b) ECB and CBC block cipher.  Electronic Code Book (ECB) – Electronic code book is the easiest block cipher mode of functioning. It is easier because of direct encryption of each block of input plaintext … Continue reading CSS Question Paper solution May 2023