Did the CST620-msg. txt and CST620-original-msg. txt files match? • How do you encrypt and decrypt a message using a certificate? • Did the CST620-msg2.txt and CST620-original-msg2.txt files match? • How do you sign a message? • What happens when you try to decrypt an encrypted message with the wrong key or certificate? • How can you verify a message has not been altered? • What happens when a message is changed before getting to its destination, such as in a man-in-the-middle attack?

Suppose we have a byte addressable computer that has a 32-byte cache with 8 bytes per block. the memory address is 8 bits long. the system accesses memory addresses (in hex) in this exact order: 6e, b9, 17, e0, 4e, 4f, 50, 91, a8, ab, ad, 93, and 94. (a) assuming the cache is direct mapped, what memory addresses will be in cache block 2 after the last address has been accessed? (b) assuming the cache is direct mapped, what is the hit ratio for the entire memory reference sequence given, assuming the cache is initially empty? (c) assuming the cache is 2-way set associative with a lru replacement policy, what is the hit ratio?

If chris has a car liability insurance, what damage would he be covered for

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