Miss Boxcryptor? Welcome to the Serverless Era of Cloud Privacy.

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Self-Contained Standalone Architecture

GPS SyncVerity™ is engineered on modern .NET 10 LTS as a standalone, self-contained x64 executable. Operating with zero external framework dependencies or web wrappers, the application interfaces directly with native Windows operating system event subsystems for lightning-fast, enterprise-grade file protection.

• Blistering Native Performance: Utilizing native Win32 FileSystemWatcher APIs, SyncVerity tracks file modifications in real time with virtually zero CPU overhead.
• Smart Delta Engine: SyncVerity checks file modification timestamps before running encryption passes, skipping unmodified assets to conserve system resources and eliminate duplicate revision spam.
• Current Hardware Focus: Optimized explicitly for Windows 10 & 11 (fully supporting Intel/AMD x64 workstations and Snapdragon-powered Windows ARM64 laptops).

The Lessons of the Past: Why Legacy Cloud Encryption Failed

When Boxcryptor was acquired and shuttered, millions of users learned a painful lesson: If an encryption company relies on central servers to log you in or manage your keys, your privacy has an expiration date. When their servers blink out, you risk losing access to your data.

GPS SyncVerity™ completely re-engineers cloud privacy by removing the middleman entirely:

• Zero Central Databases: We don't host servers, manage user accounts, or store your passwords.
• Industry-Standard BIP-39 Seed: Your vault is governed entirely by an open-source 24-word recovery mnemonic seed.
• Memory-Hard KDF: Key derivation utilizes OWASP-compliant PBKDF2-HMAC-SHA256 with 600,000 iterations generated strictly on your local hardware.

The Permanent Access Guarantee

Because SyncVerity is 100% serverless and client-side, its cryptography is entirely independent of our company. Even if GPS Research Publishers Inc. vanished tomorrow, your standalone executable and your 24 words mean you will always be able to decrypt and recover your data.

SyncVerity™ vs. Cryptomator: True Native Workspace Integration

Many Boxcryptor refugees turn to free utilities like Cryptomator, only to encounter OS blocks, virtual disk drivers, and missing enterprise features. Here is how SyncVerity provides a seamless Windows ecosystem:

• No Clunky Virtual Drives: Cryptomator forces your computer to mount artificial virtual drive letters (like an external USB device), causing performance lag and antivirus scan-locks. SyncVerity encrypts file payloads directly into native target directories as .aes containers.
• Cryptographic Filename Obfuscation: Files stored on destination backup drives are assigned random-looking 32-character HMAC-SHA256 hashes (e.g., 3c5794af14d25a2cef2bfc106c89ba08.aes), masking original file names and extensions from cloud providers. The built-in Vault Asset Catalog decrypts V3 metadata headers locally to display true human-readable file names inside the app interface.
• Volatile Memory Hygiene: Session keys in RAM are continuously protected and zeroed out immediately upon vault lock using hardware-level memory scrubbing (CryptographicOperations.ZeroMemory).
• Multi-Pass Forensic Shredding: Deleting an unencrypted original file usually leaves data behind for recovery software. SyncVerity includes an automated multi-pass file shredder (zero-byte overwrite + cryptographic noise) to destroy physical disk sectors.
• True Multi-Computer Workstation Fleets: A SyncVerity Pro pass unlocks your shared 24-word vault across unlimited computers simultaneously with zero per-machine licensing friction.

Advanced Active Protection Module Matrix

SyncVerity replaces manual locker mechanics with an active, configurable background defense suite:

• Post-Quantum Hybrid Protection (ML-KEM-768 / FIPS 203 + AES-256): Wraps payload keys with quantum-resistant key encapsulation algorithms to defend backup assets against future quantum computing decryption threats.
• Per-Folder Key Isolation (HKDF-SHA256): Derives independent cryptographic sub-keys for separate source channels, ensuring that even if one channel key is compromised, all other protected folders remain isolated.
• Ransomware Canary Tripwires (.sys_canary_tripwire.dat): Plants hidden honeypot files in your source directories. If active ransomware touches or modifies a tripwire, SyncVerity triggers an immediate Emergency Lockdown and halts the watchdog engine.
• Shannon Entropy Threat Analysis: Scans modified files in real time for mathematical entropy spikes ($0.00 to $8.00). If an uncompressed document suddenly turns into high-entropy ransomware garbage, the engine halts automatically. (Includes built-in smart exemptions for compressed formats like .pdf, .docx, .zip, .mp4, etc.)
• Bit Rot & AEAD Integrity Scrubber: Performs automated 24-hour background dry-run passes that verify AES-GCM 128-bit authentication tags to detect silent drive degradation or bit rot before data loss occurs.
• WORM Immutability Lock (Write Once, Read Many): Locks vault containers into a read-only state, preventing accidental deletion, overwriting, or modification of historical revisions.
• YubiKey Hardware Step-Up Authentication: Enrolls YubiKey Slot 2 HMAC-SHA1 Challenge-Response hardware tokens. Unlocking the vault or revealing/printing the 24-word recovery seed sheet requires physical hardware touch verification.
• Automated Unattended Boot Mode: Optional DPAPI-encrypted startup authorization (boot.key) integrates with the Windows Registry to run protection loops headless on system boot without re-typing passwords.

How We Compare: The Encryption Market Matrix

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