Arcanum

byChar0n · Security & Privacy

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android

AI summary

Encrypted container manager for VeraCrypt-compatible volumes with AES-256, Twofish, and Serpent ciphers. New biometric unlock for keyfile containers, password autofill support, and hidden volume protection confirmation. Keyfiles now stay in memory only, never touching disk. Includes disguise mode, panic PIN, and Argon2id protection with no network access or telemetry.

Generated by AI. May contain inaccuracies.

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About this app

Arcanum is an encrypted container manager for Android that creates and mounts VeraCrypt-compatible volumes. Your files are protected with military-grade encryption and remain accessible only to you.

Key Features

• VeraCrypt-compatible — containers work on desktop too (Windows, macOS, Linux) • AES-256, Twofish, Serpent and cascade ciphers • Multiple hash algorithms: SHA-512, SHA-256, Whirlpool, Streebog, BLAKE2s-256 • Hidden volumes for plausible deniability • Keyfile support • Biometric unlock (fingerprint / face)

Privacy & Security

• Disguise mode — app appears as a plain calculator on the home screen • Panic PIN — instantly wipes sensitive data and resets the app • Auto-lock when the app goes to the background • PIN protected with Argon2id key derivation • No network access, no analytics, no telemetry • All data stays on your device

Open Source

Arcanum is fully open source. The cryptographic implementation is based on the VeraCrypt codebase. You can review, audit, and build the app yourself.

encryption privacy open source offline file manager security

What's new

v1.1.1Jun 29, 2026

New Features
Password manager autofill - Password fields now show suggestions from your autofill service (e.g. KeePassDX). Selecting a credential automatically fills the Confirm Password field too Biometric unlock for keyfile containers - Containers protected with a keyfile can now be unlocked with biometrics. If a keyfile is later moved or deleted, a clear error screen guides you back to manual mounting Hidden volume protection confirmation - When mounting an outer volume with hidden volume protection enabled, a confirmation screen now appears to confirm that protection is active
Improvements
Biometric credentials auto-update - Manually mounting a container with the biometric toggle on now refreshes the saved credentials — useful when changing your password or keyfiles Navigation bar compatibility - UI no longer overlaps the 3-button navigation bar on devices using legacy navigation (closes #59)
Security
Keyfiles never touch disk - Keyfiles are now read directly into memory and never written to the app cache. Previous builds left a temporary plaintext copy on disk during mounting Bug Fixes arm32 container creation - Creating containers on 32-bit ARM devices (armeabi-v7a) produced a broken, unreadable container due to a type definition issue in the XTS encryption layer (closes #62)