https://github.com/berkbavas/cryptostuff

Cryptographic algorithms and attacks in Java 8
https://github.com/berkbavas/cryptostuff

cbc-mode close-primes cryptanalysis cryptography fermat-factorization four-square miller-rabin-test monoalphabetic-cipher pkcs1 playfair-cipher rsa rsa-pkcs1-padding vigenere-cipher

Last synced: about 1 month ago
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Cryptographic algorithms and attacks in Java 8

• Host: GitHub
• URL: https://github.com/berkbavas/cryptostuff
• Owner: berkbavas
• Created: 2021-11-05T22:08:06.000Z (about 3 years ago)
• Default Branch: master
• Last Pushed: 2024-09-14T23:03:31.000Z (3 months ago)
• Last Synced: 2024-09-16T06:27:28.008Z (3 months ago)
• Topics: cbc-mode, close-primes, cryptanalysis, cryptography, fermat-factorization, four-square, miller-rabin-test, monoalphabetic-cipher, pkcs1, playfair-cipher, rsa, rsa-pkcs1-padding, vigenere-cipher
• Language: Java
• Homepage:
• Size: 1.3 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Cryptographic Algorithms and Attacks

The project implements few cryptographic algorithms and attacks in ``Java 8``.

You may use ``mvn compile`` and ``mvn test`` 

commands in order to compile the project and run the tests.

## Content

- Algorithms

    - Asymmetric Cipher

        - RSA with PKCS1 v1.5 Padding

    - Traditional Ciphers

        - Four Square

        - Monoalphabetic

        - Playfair

        - Vigenere

- Attacks

    - CBC Padding Oracle Attack

    - RSA

        - Fermat Factorization

        - Miller Factorization

        - Kindle Signature Forgery Attack

        - An Attack for RSA Signature Without Any Padding Scheme

        - Close Primes

    - Attacks on Traditional Ciphers

        - Four Square

        - Monoalphabetic

        - Playfair

        - Vigenere

## Tests

https://github.com/user-attachments/assets/d09b1dd9-4022-4f5c-987e-0e9aeb3ed72a

## Acknowledgement

- I implement the attacks on traditional ciphers by following the solution presented here: http://practicalcryptography.com/cryptanalysis/