Cryptig

Cryptig is a modern, secure and high-performance password manager for Windows.
Designed to offer strong encryption, custom .mistig file support, and complete local control over your credentials.

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About

Cryptig is a file-based password manager using encrypted .mistig containers. All data is locally stored, using robust cryptography (AES-256-GCM + Argon2id), offering zero-knowledge protection by default.

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Main Features (WIP)

• Full encryption with Argon2id and AES-256-GCM
• Custom .mistig file format (binary, unreadable without decryption)
• Built with .NET / C# for performance and native Windows integration
• Local-only storage for maximum privacy
• Future cloud sync/export with encryption in mind
• Built-in password generator & password strength checker
• Encrypted FileVault for securing any type of file
• Explorer-style file vault interface with previews and rename options

FileVault Overview

The FileVault format allows storing arbitrary files in a single encrypted container. Internally, the files are zipped together and protected with Argon2id-derived keys and AES-256-GCM encryption. Only users with the correct master password can decrypt or view the contents.

This feature is experimental and offers a simple way to keep documents or images private alongside your passwords.

From the main window, use File > Create File Vault or File > Open File Vault to manage encrypted containers for your personal files. The vault window now supports drag & drop of files, double-click to preview items and daily backups just like the main password vault. Version 2 adds a modern explorer-like interface with file previews, rename support and context menus. File vaults are stored per-user in %AppData%\Cryptig\filevaults and are bound to the account that created them.

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Outils pour Développeurs

• API Locale : Une API locale permettant à d'autres applications de communiquer avec Cryptig pour récupérer ou ajouter des identifiants de manière sécurisée.
• Mode Ligne de Commande : Une interface en ligne de commande pour les utilisateurs avancés souhaitant gérer leurs mots de passe sans interface graphique.

Pour démarrer l'API locale, ouvrez Developer Tools > Start Local API depuis l'application. Une clé d'accès unique vous sera affichée et devra être envoyée dans l'en-tête Authorization de chaque requête.

L'outil en ligne de commande cryptig-cli permet de lister, ajouter ou supprimer des entrées.

dotnet run --project Cryptig.CLI <username> <password> list

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Installation

Installation packages (MSI/EXE) will be available soon.

For development:

1. Clone the repository:

   git clone https://github.com/laxyny/Cryptig.git
   

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License

This project is licensed under the MPL-2.0 License - see the LICENSE file for details.

Credits

Developed and maintained by Kevin Gregoire.