Crypt — Chiffrement Zero-Knowledge

AES client-side encryption

Encrypt your files and folders on the fly before sending them to any cloud

Overview of Crypt — Chiffrement Zero-Knowledge Integration

Crypt is the most powerful virtual storage in Ultra Explorer and rclone. It allows you to turn any public cloud (Google Drive, OneDrive, S3, Dropbox) into a 100% encrypted zero-knowledge vault. Your files and their names are encrypted on your computer before any transfer.

Transparent client-side AES-256 military encryption

Obfuscation of folder and file names

Compatible with any of your 40+ existing providers

Unable for cloud provider or third parties to read your documents

In-App Configuration Dialog

Screenshot of the configuration dialog inside Ultra Explorer.

Capture Crypt — Chiffrement Zero-Knowledge — Ultra Explorer

Crypt configuration window in Ultra Explorer: selection of source storage, target folder and secure entry of encryption keys.

Configuration Fields Breakdown (Required vs Optional)

Based on Ultra Explorer source code and rclone engine: discover which parameters are truly required and which are handled automatically.

Storage Name

Required

param: name Default value: Coffre Chiffré

Unique identifier for this storage remote in Ultra Explorer (e.g. gdrive-perso, backup-s3).

Target Underlying Storage

Required

param: remote

Required. The cloud or local storage remote that will host the data (e.g. "Google Drive:", "AWS S3:bucket", "NAS:backups").

Folder Path

Optional

param: path

Absolute path to the directory on your local machine or destination remote.

Configuration Mode

Required

param: setupMode Default value: new_space

Required. 'new_space' to initialize a new encrypted vault, 'new_leaf' to create a subfolder, or 'existing_space' to unlock an existing rclone crypt vault.

Password

Required

param: password

Primary password used to access the service or decrypt data.

Secondary Salt Password

Optional

param: password2

Optional but strongly recommended. Second passphrase acting as key derivation salt to harden security.

Filename Encryption

Optional

param: filename_encryption Default value: standard

Optional. 'standard' to completely encrypt filenames, 'obfuscate' to simply mask length, or 'off' to leave plaintext names.

Directory Name Encryption

Optional

param: directory_name_encryption Default value: true

Optional. Also encrypts directory names and structure to completely conceal the tree hierarchy.

How to connect Crypt — Chiffrement Zero-Knowledge in Ultra Explorer

Simple 4-step walkthrough to connect your storage in under a minute.

Have existing storage

First configure a classic cloud account (Google Drive, Dropbox, S3...).

Create the Crypt remote

Choose 'Crypt' in the Virtual section.

Target remote folder

Indicate the target location (eg: 'gdrive:SecureFolder').

Set your password

Create a strong password and validate.

Seamless navigation

Open your Crypt remote: you see your files in clear text, whereas on the cloud, they are completely unreadable and encrypted!

Frequently Asked Questions about Crypt — Chiffrement Zero-Knowledge

What does Google or Microsoft see in my Drive?

They only see encrypted binary blocks and incomprehensible random file names. Even with physical access to the servers, no one can decrypt your documents without your password.

Can I change the password afterwards?

No. The password is used directly to generate file encryption keys. Changing the password would make existing files unreadable.

Other integrations in Virtual Storages

View all 40+ integrations →

Combine — Agrégation

Virtual Aggregation

Alias — Raccourci

Virtual Shortcut

Ready to explore your Crypt — Chiffrement Zero-Knowledge?

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