Question: Question 2 You are tasked to safe-keep the digital copies of all past and future annual reports of your company. Each report is several hundred

Question 2 You are tasked to safe-keep the digital copies of all past and future annual reports of your company. Each report is several hundred pages long and you must ensure integrity protection of the reports. Therefore, you decided to use the hash function to detect any intended or unintended modifications. (a) Discuss at least three (3) advantages of using hash function for integrity protection. (6 marks) (b) Illustrate the steps that you will take to verify that a specific file is intact and has not been modified. (6 marks) (c) What is the most important hash function property that is applicable in this case? (2 marks) (d) Is it important to keep the hash function you used (e.g., whether it is MD5, SHA-1, SHA-2, or others) as a secret information? Decide if it is necessary to use a secret key in computing the hash of the reports.

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