Engineered for Zero-Overhead Cryptographic Security.
Standard encryption utilities duplicate your files during processing, leaking unencrypted fragments to temp drives and requiring double the storage. Universal Vault was architected from the silicon up to stream in-place with military-grade rigor.
Why 0% Temporary Disk Space Matters
When software like 7-Zip, GPG, or standard archive wrappers encrypts a 200 GB database, it creates a second 200 GB file in %TEMP% or /tmp before deleting the original.
Built for Speed. Hardened for Life.
Everything you need to secure your files without the friction of bloated software or cloud subscriptions.
Zero Temporary Disk Bloat
Old-school archivers clone your entire 50 GB file into a secret temp folder before locking it, filling your SSD. Universal Vault encrypts bytes right where they sit.
600,000 PBKDF2 Rounds
OWASP Gold Standard security. 600,000 rounds of cryptographic seasoning with 32 random salt bytes makes supercomputer rainbow tables mathematically useless.
Automatic Crash Recovery
Battery ran out or laptop shut down midway? The 104-byte binary footer tracks the exact block offset so you can resume immediately with zero corrupted files.
POSIX Silicon Write Barriers
Flushes dirty OS kernel buffers directly to physical non-volatile silicon on every 1 MB boundary. Sudden unmounts can't eat your hard work.
Tiny < 3 MB Standalone Binary
Crafted in pure Go without Node.js, Python, or external DLL dependencies. Launches in 4 milliseconds flat — faster than you can click.
100% Offline by Design
Zero network packets. Zero analytics. Zero telemetry beacons. Your passwords, filenames, and plaintexts stay securely within your device.
Why In-Place Encryption Matters for Big Data
Streams directly through low-level OS file channels. Zero temporary files created in /tmp or app cache. Flushes atomically to silicon on every 1 MB block.
Must create a duplicate copy of the entire file in staging disk before writing the archive. If your drive has less than 100 GB free, the operation crashes mid-way, leaving uncollected temporary fragments.
How Universal Vault Compares
Evaluated head-to-head across key derivation resilience, storage overhead, crash safety, and mobile portability against industry standard suites.
| Metric & Specification | Universal Vault | GnuPG (GPG) | 7-Zip (AES-256) | VeraCrypt |
|---|---|---|---|---|
| Temporary Disk Overhead | 0 Bytes (True In-Place) | 100% Duplicate Copy in /tmp | 100% Archive Copy | Fixed Virtual Container Volume |
| Key Derivation Rounds | 600,000 PBKDF2-SHA256 | 65,536 S2K Iterations | 262,144 Iterations | 500,000 PIM Iterations |
| Crash & Power Loss Recovery | Instant Resumption via 104B Footer | Corrupted Output File | Corrupted Archive Container | Filesystem Journal Rollback |
| Hardware Write Barriers | POSIX fsync per 1 MB Chunk | OS Buffer Dependent | OS Page Cache Buffer | Device-Level Write Cache |
| Executable Binary Size | < 3 MB Standalone Native | ~18 MB + GPG Agent + Libgcrypt | ~5 MB (CLI) / Multi-DLL | ~45 MB + Kernel Driver |
| Android & Mobile Parity | Native Kotlin APK + SAF Stream | Termux / Ported Wrappers | Third-party Port Only | Third-party Ported Container |
| External Dependencies | Zero (Pure Static C/Go/Kotlin) | Libassuan, Libgpg-error | Visual C++ Runtimes (Win) | Kernel Filter Drivers |
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Your Files Belong to You.
Keep Them That Way.
Zero setup. Zero accounts. Zero telemetry. Download the binary, run a single command, and lock your files with mathematical certainty.