Vigenère is a program for encrypting and decrypting text using the Vigenère cipher. Built-in cryptanalysis tools make it possible to crack the cipher without needing the key — or even knowing its length.

Features

  • Encrypting text with a key
  • Decrypting the cipher with a key
  • Decrypting the cipher without a key (cipher cracking)
  • The program works with any alphabet, allowing you to manually input a custom one. English and Russian alphabets are built-in by default.
  • Advanced cryptanalysis tools
  • Supports loading frequency tables from a file. It is possible to modify frequency tables and save them. The program comes with built-in frequency tables for English and Russian letters.

Project Samples

Vigenère Screenshot 1 Vigenère Screenshot 2 Vigenère Screenshot 3

Project Activity

See All Activity >

Categories

Cryptography, Encryption, Decryption

Follow Vigenère

Vigenère Web Site

Other Useful Business Software
Try Google Cloud Risk-Free With $300 in Credit Icon
Try Google Cloud Risk-Free With $300 in Credit

No hidden charges. No surprise bills. Cancel anytime.

Use your credit across every product. Compute, storage, AI, analytics. When it runs out, 20+ products stay free. You only pay when you choose to.
Start Free
Rate This Project
Login To Rate This Project

User Reviews

Be the first to post a review of Vigenère!

Additional Project Details

Operating Systems

Windows

Languages

English

Intended Audience

Advanced End Users, Education, End Users/Desktop, Science/Research

User Interface

Qt

Programming Language

C++

Related Categories

C++ Cryptography Software, C++ Encryption Software, C++ Decryption Software

Registered

2025-08-16
Report inappropriate content