cryptography-gui-tool

Overview

A cryptographic tool with a GUI interface that can use keys to encrypt strings and files.

No performance optimization has been made, encrypting files larger than 1MB may cause the interface to freeze for a long time.

Features

• Implements 11 classical ciphers, 2 stream ciphers, 2 block ciphers, 2 public key ciphers, and 1 hash algorithm. Can encrypt and decrypt both strings and files.
• Includes a GUI interface implemented with PyQt.
• The cryptographic library is separated from the GUI code and can be used as a standalone cryptographic library.

The specific implemented ciphers are as follows:

Classical Ciphers (for string encryption and decryption)

1. Monoalphabetic Substitution Ciphers:

• Caesar Cipher
• Keyword Cipher
• Affine Cipher
• Multilateral Cipher

2. Polyalphabetic Ciphers:

• Vigenere Cipher
• Autokey Ciphertext
• Autokey Plaintext

3. Polygram Ciphers:

• Playfair Cipher

4. Transposition Ciphers:

• Permutation Cipher
• Column Permutation Cipher
• Double-Transposition Cipher

Stream Ciphers (for encrypting and decrypting strings and files)

• RC4
• CA

Block Ciphers (for encrypting and decrypting strings and files)

• DES-64
• AES-64

Public Key Ciphers (can generate key pairs, encrypt and decrypt strings and files)

• RSA
• ECC

Hash Algorithm (for strings and files)

• MD5

Environment Dependencies

Only PyQt5 is required, as listed in requirement.txt, generated by pip freeze.

Deployment Steps

It is recommended to create a Python environment using venv. In the project directory, execute the following commands:

# 1. Create a virtual environment
python -m venv .env

# 2. Activate the virtual environment
# cmd
./.env/Scripts/activate.bat

# powshell
./.env/Scripts/Activate.ps1

# linux or MacOS
source ./.env/Scripts/activate

In the created Python environment, run the following commands:

# 1. Install dependencies
pip install -r requirements.txt

# 2. Start the program
python3 main.py

Directory Structure Description

.
├── algorithm  Cryptographic algorithm implementation
│ ├── block_cipher
│ │ └── aes
│ ├── classical_cipher
│ ├── hash_algorithm
│ ├── public_cipher
│ │ ├── ecc
│ │ └── rsa
│ └── stream_cipher
│ └── ca
├── assets QSS configuration
│ ├── icons
│ ├── python
│ └── qss
├── event  GUI event binding
└── ui  GUI interface definition

Version Updates

1.0 Documentation update

1.1 Code standard update

1.2 PyQt5 version update; Removed QSS; Test files moved to a separate folder.

Disclaimer

Please credit the author morsuning if you use this code publicly.

License

Mozilla Public License 2.0