Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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EXERCISES
Encrypt the message YOU LOOK PERFECT TONIGHT by translating the letters into numbers
and applying the function specified. Then, translate back into letters.
a. f(p)=(p+3) mod 26 (Caesar cipher)
b. f(p)=(p+10) mod 26
c. f(p)=(8p+5) mod 26
d. f(p)=(4p+10) mod 26
e. f(p)=(3p+20) mod 26
2. Encrypt the message
CONGRATULATIONS by changing the letters into its equivalent number.
Then, change the numbers using the encryption function f(p) = (p+5) mod 26.
3. Encrypt the message SEE YOU IN THE PARK AFTER CLASS using a transposition cipher
with key word HONEY.
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Transcribed Image Text:EXERCISES Encrypt the message YOU LOOK PERFECT TONIGHT by translating the letters into numbers and applying the function specified. Then, translate back into letters. a. f(p)=(p+3) mod 26 (Caesar cipher) b. f(p)=(p+10) mod 26 c. f(p)=(8p+5) mod 26 d. f(p)=(4p+10) mod 26 e. f(p)=(3p+20) mod 26 2. Encrypt the message CONGRATULATIONS by changing the letters into its equivalent number. Then, change the numbers using the encryption function f(p) = (p+5) mod 26. 3. Encrypt the message SEE YOU IN THE PARK AFTER CLASS using a transposition cipher with key word HONEY.
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