https://github.com/kimtienvu/ciphers

I implemented a Caesar Cipher in different programming languages.
https://github.com/kimtienvu/ciphers

c caesar-ciphers cplusplus-11 decryption encryption java javascript python

Last synced: about 1 month ago
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I implemented a Caesar Cipher in different programming languages.

• Host: GitHub
• URL: https://github.com/kimtienvu/ciphers
• Owner: kimtienvu
• Created: 2020-09-25T01:16:58.000Z (about 4 years ago)
• Default Branch: master
• Last Pushed: 2022-03-24T22:01:55.000Z (over 2 years ago)
• Last Synced: 2024-10-12T16:21:59.101Z (about 1 month ago)
• Topics: c, caesar-ciphers, cplusplus-11, decryption, encryption, java, javascript, python
• Language: C++
• Homepage:
• Size: 43 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Ciphers

Playing around with Caesar Ciphers. User will input a message that they wish to encrypt when prompted.

Once a message is inputted, users will have the choice to choose an encryption key (positive or negative integer) using either "y", "Y", or "n", "N".

If users input "y"/"Y":

  They will be prompted to choose a key (positive or negative integer).

If users input "n"/"N":

  The default encryption key will be used.

### Python Cipher

- Uses the Ascii chart (not limited to only letters)

- Uses STDIN to get user input

* This program will also decrypt the encrypted text.

### Java Cipher

- Uses the Ascii chart (not limited to only letters)

- Uses STDIN to get user input:

* 1st input is the message to encrypt

* 2nd input is `y` or `n`

* If `y` is chosen, supply a positive integer for the 3rd argument, otherwise there is no 3rd argument

* This program will also decrypt the encrypted text.

### C/C++ Cipher

- To compile, run `make`

- Uses the Ascii chart (not limited to only letters)

- Uses command line arguments:

* 1st is the program name

* 2nd is "y" or "n" (case insensitive) to indicate if the user would like to choose the key

* If the user chooses "y": the third argument must be an integer (only positive integers work. Negative integers will result in the key being 0, hence there will be no shifting)

* If the user chooses "n": No third argument is needed

- After the user runs the program with command line arguments, they will be prompted to enter a message they would like to encrypt.

* If no message is inputted, program ends.

* If message is provided, Users will be shown the original message, the key, and the encrypted message.

* This program will also decrypt the encrypted text.

### Javascript Cipher

- Uses the Ascii chart (not limited to only letters)

- Use a javascript compiler (online) if you want to run it. 

- function is called "cipher" and it takes in 2 parameters: a message and a key

- Enter the message in the html script when the javascript method is called and enter a key.