https://github.com/20101301-alina-hasan/multiple-cryptographic-functionalities
This Python application integrates various cryptographic functionalities into a single interactive program. Users can perform operations such as encryption, decryption, hashing, digital signature generation/verification, and Message Authentication Code (MAC) generation.
https://github.com/20101301-alina-hasan/multiple-cryptographic-functionalities
cryptography digital-signature-algorithm encryption-decryption hashing jupyter-notebook message-authentication-code python
Last synced: 2 months ago
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This Python application integrates various cryptographic functionalities into a single interactive program. Users can perform operations such as encryption, decryption, hashing, digital signature generation/verification, and Message Authentication Code (MAC) generation.
- Host: GitHub
- URL: https://github.com/20101301-alina-hasan/multiple-cryptographic-functionalities
- Owner: 20101301-Alina-Hasan
- Created: 2024-11-24T04:20:14.000Z (6 months ago)
- Default Branch: main
- Last Pushed: 2024-12-11T07:14:42.000Z (5 months ago)
- Last Synced: 2025-01-25T04:43:12.504Z (4 months ago)
- Topics: cryptography, digital-signature-algorithm, encryption-decryption, hashing, jupyter-notebook, message-authentication-code, python
- Language: Jupyter Notebook
- Homepage:
- Size: 20.5 KB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Multiple Cryptographic Functionalities
## Overview
This Python application integrates various cryptographic functionalities into a single interactive program. Users can perform encryption, decryption, hashing, digital signature generation/verification, and Message Authentication Code (MAC) generation.
Developed by **Alina Hasan**
---
## Features
1. **AES Encryption/Decryption**
Supports encryption and decryption using AES in ECB or CBC modes. Users can input plaintext/ciphertext, specify the AES mode, provide keys, and select the desired operation.
2. **RSA Encryption/Decryption**
Implements RSA for encrypting and decrypting messages. Users can generate RSA keys and perform encryption or decryption.
3. **Hashing**
Provides hashing functionalities using SHA1, SHA256, and MD5. Users can input data and select the hashing algorithm.
4. **Digital Signature using RSA**
Facilitates the creation and verification of digital signatures to ensure message integrity and authenticity.
5. **MAC Generation**
Supports generation of Message Authentication Codes using CMAC (Cipher Block Chaining-MAC) and HMAC (Hash-based Message Authentication Code).
---
## Installation
Before running the program, install the required cryptographic library:
```bash
pip install pycryptodome
```
---
## Usage
### Running the Application
Run the program in a Python environment. Upon execution, a menu will appear with the following options:
1. **AES Encryption/Decryption**
- Choose ECB or CBC mode.
- Specify whether to encrypt or decrypt.
- Input the message and key.
2. **RSA Encryption/Decryption**
- Generate RSA keys (private and public).
- Choose encryption or decryption.
- Input the required keys and message.
3. **Hashing**
- Select the hashing algorithm (SHA1, SHA256, or MD5).
- Input the message to hash.
4. **Digital Signature using RSA**
- Generate a signature or verify an existing one.
- Provide the necessary keys and message.
5. **MAC Generation**
- Choose between CMAC and HMAC.
- Input the message to generate the MAC.
6. **Exit**
- Quit the application.
---
## Examples
### AES Encryption
- Mode: CBC
- Message: `HelloWorld`
- Key: `mysecretkey`
```plaintext
Encrypted text: b'\xab\xcd\xef...'
Decrypted text: HelloWorld
```
### RSA Encryption
- Generate keys:
- Prime Numbers: `p = 17`, `q = 23`
- Public Key (e, N): `(3, 391)`
- Private Key (d): `275`
- Encrypt: `M = 42`
```plaintext
Encrypted message: 180
```
- Decrypt: `C = 180`
```plaintext
Decrypted message: 42
```
### Hashing
- Algorithm: SHA256
- Message: `SecureHash`
```plaintext
Hash Value: 7c2a55...e3a6f9
```
### Digital Signature
- Message: `VerifyThis`
- Signature: Generated using RSA private key.
- Verification: Valid or Invalid.
### MAC Generation
- Message: `AuthenticateMe`
- CMAC/HMAC: Generates a unique signature for the message.
---
## Implementation Details
### Modules Used
- `pycryptodome` for cryptographic functionalities.
- `hashlib`, `base64`, `os`, `hmac` for supporting utilities.
### Cryptographic Algorithms
- **AES**: Encryption/Decryption using block ciphers.
- **RSA**: Public/Private key cryptography for secure communication.
- **SHA1/SHA256/MD5**: Hash functions for integrity.
- **MAC**: Ensures authenticity using CMAC or HMAC.
### Input Validation
- Prime checking using `is_prime` function.
- Coprime validation for RSA key generation.
---
## Future Improvements
- Extend support for additional algorithms (e.g., DES, RSA-OAEP).
- Add a GUI for improved user experience.
- Provide more robust error handling for invalid inputs.
---
## License
This project is for academic purposes. Redistribution or commercial use is prohibited without permission.
---
## Contact
**Alina Hasan**
Email: [[email protected]]()
ID: 20101301