... (and it’s not for small systems) , but consider the following figures:Number of Participants Number of Keys Required2132 46 51010 45 100 4, 9501,000 49 9,50010,000 49 ,995,000Obviously, the ... Skipjack’s 80-bit key is relatively insecure. 43 35.book Page 2 74 Wednesday, June 9, 20 04 7:01 PM 290 Chapter 10 PKI and Cryptographic Applications 4. Find a number, d, such that ( ... integrity alert. 43 35.book Page 252 Wednesday, June 9, 20 04 7:01 PM2 84 Chapter 9Cryptography and Private Key AlgorithmsAnswers to Review Questions1. C. The four goals of cryptographic systems are...