https://github.com/abdullahmaqbool22/3des-cryptography

An Encryption and Decryption system using 3DES made in python.
https://github.com/abdullahmaqbool22/3des-cryptography

python

Last synced: 5 months ago
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An Encryption and Decryption system using 3DES made in python.

• Host: GitHub
• URL: https://github.com/abdullahmaqbool22/3des-cryptography
• Owner: AbdullahMaqbool22
• License: mit
• Created: 2023-11-29T19:42:19.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2023-11-29T19:44:37.000Z (about 2 years ago)
• Last Synced: 2024-12-29T20:48:14.021Z (about 1 year ago)
• Topics: python
• Language: Python
• Homepage:
• Size: 314 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# 3DES-Cryptography

A 3DES implementation in Python.

# Algorithm

### DES

1. Encryption

    1. Create 16 subkeys  

        ![DES-subkeys-generation](./media/DES-subkeys-generation.png)

    2. Encrypt each 64-bit block of data  

        ![DES-blocks-encryption](./media/DES-blocks-encryption.png)

    3. Combine those blocks

2. Decryption

    1. Follow the same steps as above, but reverse the order in which the subkeys are applied.

### 3DES

1. Encryption  

    ![3DES-encryption](./media/3DES-encryption.png)

2. Decryption  

    ![3DES-decryption](./media/3DES-decryption.png)

# Test Environment

+ Windows 11

+ Python 3.12.0

# References

+ [The DES Algorithm Illustrated](http://page.math.tu-berlin.de/~kant/teaching/hess/krypto-ws2006/des.htm)

+ [FIPS 46-3, Data Encryption Standard (DES)](https://csrc.nist.gov/csrc/media/publications/fips/46/3/archive/1999-10-25/documents/fips46-3.pdf)

+ [What is 3DES encryption and how does DES work?](https://www.comparitech.com/blog/information-security/3des-encryption/)

# License

This project is under the [MIT License](./LICENSE).