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In the figure, each character, both lowercase (plaintext) and uppercase (ciphertext) characters, is assigned an integer value mod26 (not ASCII). The encryption algorithm used is to add the text text value to the key used. Meanwhile, the decryption algorithm used is subtracting the ciphertext value from the key used. All values ​​are expressed in integer mod26 (0-25).   If key = 20 is used, encrypt the plaintext of your First Name

In the figure, each character, both lowercase (plaintext) and uppercase (ciphertext) characters, is assigned an integer value mod26 (not ASCII). The encryption algorithm used is to add the text text value to the key used. Meanwhile, the decryption algorithm used is subtracting the ciphertext value from the key used. All values ​​are expressed in integer mod26 (0-25).   If key = 20 is used, encrypt the plaintext of your First Name

Computer Networking: A Top-Down Approach (7th Edition)
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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In the figure, each character, both lowercase (plaintext) and uppercase (ciphertext) characters, is assigned an integer value mod26 (not ASCII). The encryption algorithm used is to add the text text value to the key used. Meanwhile, the decryption algorithm used is subtracting the ciphertext value from the key used. All values ​​are expressed in integer mod26 (0-25).

 

If key = 20 is used, encrypt the plaintext of your First Name

Plaintext albcldelfahlilik mnopars t|u|V]W X abcdefghijkmnoP||stUVWXy z Ciphertext→A BCDEFGHIJKLMNOPQRSTUVWXYZ Value→00 01 02/03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20/2122 23/24 25
Transcribed Image Text:Plaintext albcldelfahlilik mnopars t|u|V]W X abcdefghijkmnoP||stUVWXy z Ciphertext→A BCDEFGHIJKLMNOPQRSTUVWXYZ Value→00 01 02/03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20/2122 23/24 25
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