Implement a ROT13 simple replacement cipher as described in this article. You can limit your transformation to just the upper and lowercase letters (i.e., you do not have to transform punctuation or spaces). Requirements Similar to the earlier parts of this assignment, use the provided template file (p4_3.py to implement the encrypt and decrypt functions. Use the tests provided in CodingRooms to verify your solution. Hint: You may wish to use the Python string maketrans function, but it's not required - as long as you correctly handle all uppercase and lowercase letters.

Implement a ROT13 simple replacement cipher as described in this article. You can limit your transformation to just the upper and lowercase letters (i.e., you do not have to transform punctuation or spaces). Requirements Similar to the earlier parts of this assignment, use the provided template file (p4_3.py to implement the encrypt and decrypt functions. Use the tests provided in CodingRooms to verify your solution. Hint: You may wish to use the Python string maketrans function, but it's not required - as long as you correctly handle all uppercase and lowercase letters.

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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Question

Implement a ROT13 simple replacement cipher as described in this article. You can limit your transformation to just
the upper and lowercase letters (i.e., you do not have to transform punctuation or spaces).
Requirements
Similar to the earlier parts of this assignment, use the provided template file p4 3.py I to implement the encrypt
and decrypt functions. Use the tests provided in CodingRooms to verify your solution.
Hint: You may wish to use the Python string maketrans function, but it's not required - as long as you correctly handle
all uppercase and lowercase letters.
Example doctests output:
python -m doctest p4_3.py -v
Trying:
decrypt('Qb be qb abg. Gurer vf ab gel.')
Expecting:
'Do or do not. There is no try.'
ok
Trying:
decrypt('Nubl, gurer!')
Expecting:
'Ahoy, there!'
ok
Trying:
encrypt('Do or do not. There is no try.')
Expecting:
"Qb be qb abg. Gurer vf ab gel.'
ok
Trying:
encrypt('Ahoy, there!')
Expecting:
'Nubi, gurer!'
ok
3 items had no tests:
p4_3
p4_3. get_rot13
p4_3. main
2 items passed all tests:
2 tests in p4_3. decrypt
2 tests in p4_3.encrypt
4 tests in 5 items.
4 passed and 0 failed.
Test passed.

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