Problem 6. An important scheme for integrity service in a typical SET transaction is shown in the following diagram. a) Identify and name this mechanism and its purpose b) Fill out the missing labels and words wherever denoted by the question mark in this diagram c) Very briefly describe the steps in this process Purchase Info. Hash Bank ? 11 Hash ? En- crypt ? Customer's key Customer's _?_key Order Info. Hash Merchant Problem 6. An important scheme for integrity service in a typical SET transaction is shown in the following diagram. a) Identify and name this mechanism and its purpose b) Fill out the missing labels and words wherever denoted by the question mark in this diagram c) Very briefly describe the steps in this process Purchase Info. Hash Bank ? 11 Hash ? En- crypt ? Customer's key Customer's _?_key Order Info. Hash Merchant