Here is the encryption key for an affine transformation like we saw in lecture: C = 5P + 2. This time, we are using arithmetic mod 27, where the characters a,.,z are mapped to the numbers 0 through 25 and the space character is mapped to 26. •.. a) What is the endcoding of "hello" as a string of characters? Show work. b) What is the decryption key for this transformation? Show work. c) Decode the message "mco". Show work.

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Here is the encryption key for an affine
transformation like we saw in lecture:
C = 5P + 2.
This time, we are using arithmetic mod 27,
where the characters a,..,z are mapped to the
numbers 0 through 25 and the space character
is mapped to 26.
a) What is the endcoding of "hello" as a string of
characters? Show work.
b) What is the decryption key for this
transformation? Show work.
c) Decode the message "mco". Show work.
Transcribed Image Text:Here is the encryption key for an affine transformation like we saw in lecture: C = 5P + 2. This time, we are using arithmetic mod 27, where the characters a,..,z are mapped to the numbers 0 through 25 and the space character is mapped to 26. a) What is the endcoding of "hello" as a string of characters? Show work. b) What is the decryption key for this transformation? Show work. c) Decode the message "mco". Show work.
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