Question: Consider the use of counter mode
Consider the use of counter mode, as shown in Fig. 8-15, but with IV = 0. Does the use of 0 threaten the security of the cipher in general?
Answer to relevant QuestionsThe signature protocol of Fig. 8-18 has the following weakness. If Bob crashes, he may lose the contents of his RAM. What problems do this cause and what can he do to prevent them?Consider the failed attempt of Alice to get Bob's public key in Fig. 8-23. Suppose that Bob and Alice already share a secret key, but Alice still wants Bob's public key. Is there now a way to get it securely? If so how?Suppose an organization uses VPN to securely connect its sites over the Internet. Is there a need for a user, Jim, in this organization to use encryption or any other security mechanism to communicate with another user Mary ...Point-of-sale terminals that use magnetic-stripe cards and PIN codes have a fatal flaw: a malicious merchant can modify his card reader to capture and store all the information on the card as well as the PIN code in order to ...What is the difference between the classical and the statistical approaches to thermodynamics?
Post your question