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
Veeam Data Platform v13.1 Icon
Veeam Data Platform v13.1

Move workloads across hypervisors and clouds with no vendor lock-in. Try VDP free today.

Try Veeam Data Platform today. Experience the unified platform that's secure by design, portable by default, and proven to recover clean, fast, and anywhere.
Try Now
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