Polybius Square Cipher

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About

There are many ciphers out there. Some of them are old. Substitution is a type of cipher method used for millenia to covert written forms of communication. They can be quite easily defeated with frequency analysis, but how do they work?

This project demonstrates visually the functionning of the Polybius square cipher. Give it a try.

A simple web page demo'ing the decryption of cipher via a visual grid. The grid was added an extra row and covers the letter J as well.

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Get started

• Clone/checkout the repo

npm install # install npm dependencies

develop

npm run dev

build

npm run build

or see demo

Demo

See the demo here or here

Table of Contents

1. About The Project
   • Built With
2. Roadmap
3. Contributing
4. License
5. Acknowledgments

Built With

• No-lib Vanilla JavaScript and pure HTML/CSS

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Roadmap

• Reveal grid
• Decrypt some ciphers in real time
• Make interactive

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Contributing

Contributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are greatly appreciated.

If you have a suggestion that would make this better, please fork the repo and create a pull request. You can also simply open an issue with the tag "enhancement". Don't forget to give the project a star! Thanks again!

1. Fork the Project
2. Create your Feature Branch (git checkout -b feature/AmazingFeature)
3. Commit your Changes (git commit -m 'Add some AmazingFeature')
4. Push to the Branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

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License

Distributed under the MIT License.

Acknowledgments

• Polybius!
• Malven's Grid Cheatsheet
• Img Shields

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