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added RC4 cypher algorithm#4254

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added RC4 cypher algorithm#4254
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Describe your change:

Created and added RC4 cypher algorithm, both encryption and decryption

  • [x ] Add an algorithm?

Checklist:

  • I have read CONTRIBUTING.md.
  • This pull request is all my own work -- I have not plagiarized.
  • I know that pull requests will not be merged if they fail the automated tests.
  • This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
  • All new Python files are placed inside an existing directory.
  • All filenames are in all lowercase characters with no spaces or dashes.
  • All functions and variable names follow Python naming conventions.
  • All function parameters and return values are annotated with Python type hints.
  • All functions have doctests that pass the automated testing.
  • All new algorithms have a URL in its comments that points to Wikipedia or other similar explanation.
  • If this pull request resolves one or more open issues then the commit message contains Fixes: #{$ISSUE_NO}.

@ghost ghost added require descriptive names This PR needs descriptive function and/or variable names require tests Tests [doctest/unittest/pytest] are required require type hints https://docs.python.org/3/library/typing.html labels Mar 3, 2021
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Click here to look at the relevant links ⬇️

🔗 Relevant Links

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Python:

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Comment thread ciphers/rc4.py
'''

import array as S
aDict = dict(zip('abcdefghijklmnopqrstuvwxyz.!?()-ABCDEFGHIJKLMNOPQRSTUVWXYZ',
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Variable and function names should follow the snake_case naming convention. Please update the following name accordingly: aDict

Comment thread ciphers/rc4.py
k = "KEY"
print("my key is : " + k)

def bitXor(a,b):
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Please provide return type hint for the function: bitXor. If the function does not return a value, please provide the type hint as: def function() -> None:

As there is no test file in this pull request nor any test function or class in the file ciphers/rc4.py, please provide doctest for the function bitXor

Variable and function names should follow the snake_case naming convention. Please update the following name accordingly: bitXor

Please provide descriptive name for the parameter: a

Please provide type hint for the parameter: a

Please provide descriptive name for the parameter: b

Please provide type hint for the parameter: b

Comment thread ciphers/rc4.py
else:
return "1";

def text_enc(text):
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Please provide return type hint for the function: text_enc. If the function does not return a value, please provide the type hint as: def function() -> None:

As there is no test file in this pull request nor any test function or class in the file ciphers/rc4.py, please provide doctest for the function text_enc

Please provide type hint for the parameter: text

Comment thread ciphers/rc4.py
return coded_text.lower()


def KSA(message,key):
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Please provide return type hint for the function: KSA. If the function does not return a value, please provide the type hint as: def function() -> None:

As there is no test file in this pull request nor any test function or class in the file ciphers/rc4.py, please provide doctest for the function KSA

Please provide type hint for the parameter: message

Please provide type hint for the parameter: key

Comment thread ciphers/rc4.py

return S

def PRG(S,message,key):
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Please provide return type hint for the function: PRG. If the function does not return a value, please provide the type hint as: def function() -> None:

As there is no test file in this pull request nor any test function or class in the file ciphers/rc4.py, please provide doctest for the function PRG

Please provide descriptive name for the parameter: S

Please provide type hint for the parameter: S

Please provide type hint for the parameter: message

Please provide type hint for the parameter: key

Comment thread ciphers/rc4.py

return new_key

def RC4_en(message,key):
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Please provide return type hint for the function: RC4_en. If the function does not return a value, please provide the type hint as: def function() -> None:

As there is no test file in this pull request nor any test function or class in the file ciphers/rc4.py, please provide doctest for the function RC4_en

Variable and function names should follow the snake_case naming convention. Please update the following name accordingly: RC4_en

Please provide type hint for the parameter: message

Please provide type hint for the parameter: key

Comment thread ciphers/rc4.py
return encoded


def RC4_dec(encrypted,key):
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Please provide return type hint for the function: RC4_dec. If the function does not return a value, please provide the type hint as: def function() -> None:

As there is no test file in this pull request nor any test function or class in the file ciphers/rc4.py, please provide doctest for the function RC4_dec

Variable and function names should follow the snake_case naming convention. Please update the following name accordingly: RC4_dec

Please provide type hint for the parameter: encrypted

Please provide type hint for the parameter: key

@ghost ghost added awaiting reviews This PR is ready to be reviewed tests are failing Do not merge until tests pass labels Mar 3, 2021
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stale Bot commented Jun 4, 2021

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

@stale stale Bot added the stale Used to mark an issue or pull request stale. label Jun 4, 2021
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stale Bot commented Jun 16, 2021

Please reopen this pull request once you commit the changes requested or make improvements on the code. If this is not the case and you need some help, feel free to seek help from our Gitter or ping one of the reviewers. Thank you for your contributions!

@stale stale Bot closed this Jun 16, 2021
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awaiting reviews This PR is ready to be reviewed require descriptive names This PR needs descriptive function and/or variable names require tests Tests [doctest/unittest/pytest] are required require type hints https://docs.python.org/3/library/typing.html stale Used to mark an issue or pull request stale. tests are failing Do not merge until tests pass

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