Examine the data encryption technique illustrated in Figure 14-10. Use a displacement value of ?8? to encrypt the following message. Hint: This task becomes easy if you use an Excel spreadsheet and VLOOKUP formulas that reference a table of letters and their numeric equivalencies.?Those who ignore history are forced to repeat it.?

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Encryption Scheme: Letters of the alphabet: A B C D E F G H I Numerical equivalent: Plus displacement key: 5 5 5 5 5 5 5 ... 1 2 3 4 5 9 10 6. 8 ... 5 5 5 6 7 8 9 10 11 12 13 14 15 New values: Letters to use in code: F G H IJ K LM NO .. Example: Plaintext message: HI, ABE! Cyphertext message: MN, FGJI