File Encryption, Text Encryption (Messages, Notes, …), Secure Password Manager
About this app
➤ File Encryptor: Securely encrypt your private and confidential files or entire folders. 🎥 ~ Basic file encryption video tutorial
➤ Text Encryptor: Protect your messages, notes, cryptocurrency keys (seeds, mnemonics), and other sensitive text from unauthorized access. Use the internal database or simply copy and paste to/from your favorite apps. Set a password for each encryption/decryption session—you can use an unlimited number of passwords for different purposes (e.g., notes, emails, social networking, or communication with individuals A, B, C, etc.). 🎥 ~ Text encryption video tutorial
➤ Password Vault: Securely store and manage all your passwords, PINs, and notes in one place, protected by a single master password. Includes import/export functionality (compressed, fully encrypted .pwv format or unencrypted, editable .xml format).
• Encryption Algorithms: Strong encryption using multiple ciphers, including AES (Rijndael) 256-bit, RC6 256-bit, Serpent 256-bit, Blowfish 448-bit, Twofish 256-bit + Threefish 1024-bit, SHACAL-2 512-bit, and Paranoia C4 2048-bit (available in the S.S.E. Pro version). • Steganography: The File and Text Encryptor include a steganographic feature that hides text or files within JPG images using the J-UNIWARD or F5 algorithm, combined with your chosen cipher to produce a final steganogram (JPEG image). • Additional Tools: Password Generator, Clipboard Cleaner, Algorithm Benchmark, and more. • Cross-platform Support: Desktop versions (Windows, Linux, macOS) of File Encryptor and Text Encryptor are available at: https://paranoiaworks.mobi
• iOS Support: Paranoia File Encryption and Paranoia Text Encryption are also available for iOS (iPhone/iPad/iPod). • Web Version: An online, client-side JavaScript version of the File and Text Encryptor (AES) is available at: https://pteo.paranoiaworks.mobi
Licensed under GPL-3.0-only, by Paranoia Works.
What's New in v3.2.1.1
Imported from the F-Droid repository index.
- - FIX (3.2.1.1): The native version of the BLAKE3 library causes application crashes on API levels 23 and 24 (Android 6.0 and 7.0).
- - Encrypt File as URL: Encrypts a file and produces a self-contained link.
- - File Encryptor: Experimental support for the Zstandard compression algorithm has been added to FE.
- - Text Encryptor / Steganography: Experimental support for the Kanzi compression algorithm.
- - New compatible web apps are available at: https://pteo.paranoiaworks.mobi
- more: https://paranoiaw
Version history
Jun 30, 2026 · 11.1 MB · Android API 21–36 · code 151
Imported from the F-Droid repository index.
- - FIX (3.2.1.1): The native version of the BLAKE3 library causes application crashes on API levels 23 and 24 (Android 6.0 and 7.0).
- - Encrypt File as URL: Encrypts a file and produces a self-contained link.
- - File Encryptor: Experimental support for the Zstandard compression algorithm has been added to FE.
- - Text Encryptor / Steganography: Experimental support for the Kanzi compression algorithm.
- - New compatible web apps are available at: https://pteo.paranoiaworks.mobi
- more: https://paranoiaw
SHA-256 15186d14327811a21f4978642ca09a43548200adda24772c108e1c059c707360
Jun 24, 2026 · 11.1 MB · Android API 21–36 · code 150
Imported from the F-Droid repository index.
- - Encrypt File as URL: Encrypts a file and produces a self-contained link that the recipient can paste into any browser to recover the original file.
- - File Encryptor: Experimental support for the Zstandard compression algorithm has been added to FE. Decompression of the new format is enabled by default.
- - Text Encryptor / Steganography: Experimental support for the Kanzi compression algorithm.
- - New compatible web apps are available at: https://pteo.paranoiaworks.mobi
- more: https://paranoiawor
SHA-256 6a67180037c4a57680a4c0d201cf6540db28101806aa16f1136649b16f6896f6
Apr 27, 2026 · 11.4 MB · Android API 21–36 · code 141
Imported from the F-Droid repository index.
- - Password Vault: Added the post-quantum algorithm ML-KEM (NIST FIPS 203) for secure password exchange;
- - File Encryptor: File steganography — you can now encrypt and hide files (not just text) inside JPEG images;
- - New steganographic algorithm J-UNIWARD;
- - New compatible web apps are available at: https://pteo.paranoiaworks.mobi
- more: https://paranoiaworks.mobi/sse/ssechangelog.htm
SHA-256 f6df26ffb13a17b3c04f6724fa4a1f171e109104886cf5945fe7a1c85dfd21fc
Will it run on your device?
92%
- Runs on a broad range of modern Android versions.
- Multiple CPU architectures are covered.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be com.paranoiaworks.unicus.android.sse is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 3.2.1 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Secret Space Encryptor (SSE) first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Secret Space Encryptor (SSE), and a listing is removed when the evidence for it stops holding up.
Get Secret Space Encryptor (SSE)
Every source we list for com.paranoiaworks.unicus.android.sse is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
15186d14327811a21f4978642ca09a43548200adda24772c108e1c059c707360
Signing certificate
b9da156a44f97e91061920ae6de934446c349502756a04528fa7bec311a9543d
Permissions Required
What each permission lets Secret Space Encryptor (SSE) do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
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