Encryption has a remarkably long and varied history. Spies have been using it to convey secret messages ever since there were secret messages to convey. One powerful method of encryption uses random digits. Two documents are prepared with the same random sequence of numbers. The spy is sent out with one and the spy master retains the other. The digits are used as follows. Suppose that the word to be encrypted is SPY and the random digits are 352. Then S becomes V (three letters after S), P becomes U (five letters after P), and Y becomes A (two letters after Y, restarting at A after Z). The spy would encrypt a message and then destroy the document used to encrypt it. This is an early example of A. a hashing algorithm. B. asymmetric key encryption. C. symmetric key encryption. D. public key encryption.
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Encryption has a remarkably long and varied history. Spies have been using it to convey secret messages ever since there were secret ...” in 📘 Computers and Technology if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers
You Might be Interested in
During a network infrastructure upgrade, you have replaced two 10 Mbps hubs with switches and upgraded from Category 3 UTP cable to Category 5e.
Answers (1)
Which of the following is an example of a real-world logic problem for which computers may be used? banking transactions performed at ATMs selecting a company for processing accounts payable delivering blank checks to the payroll department mailing
Answers (1)
What does this snippet of code do? birds = ["robin", "finch", "grackle", "crow", "wren"] for i in birds: print (i) It counts the number of birds in the list. It prints the index and then each bird name. It prints each bird name on a separate line.
Answers (1)
What piece of equipment is NOT a tool that would be considered appropriate equipment for on-site visits? a. multimeter b. flashlight c. ESD strap d. oscilloscope
Answers (1)
Assume the int variable value has been initialized to a positive integer. Write a while loop that prints all of the positive divisors of value. For example, if values is 28, it prints divisors of28: 1 2 4 7 14 28
Answers (1)
New Questions in Computers and Technology
What will entering the formula = SUM (C5:C18) in cell C19 result in?
Answers (1)
What is an appropriate action when an email thread becomes long? Do not forward it Start a new email thread Include the message chain when changes are made throughout the thread Use the reply all feature to explain all the steps that happened in the
Answers (1)
In the state of Florida your first conviction for DUI can result in your vehicle being impounded for: A. 20 days B. 10 Days C. 5 Days D. 15 Days
Answers (1)
Write the definition of a class employee base on the modular specification:. A data member for Id of type int (private). A data member for EmpName of type string (private). A data member for Salary of type double (private).
Answers (1)
What target audience does your product serve?
Answers (1)