13. A company is selling an artifact worth millions of dollars. Many interested buyers are in the bidding process, which works as follows. Each buyer sends the information of his/her final number (e.g., $1,000,000.00) to the company to show his/her commitment And the number must be kept confidential from other buyers and even the company before the deadline. After the deadline, all numbers are released to all buyers and the company, then the buyer with the highest number wins. Design a HASH FUNCTION based scheme to secure the bidding process. Describe steps a buyer and/or the company should do.