File Encryptor & Decryptor
Lock and unlock any file with military-grade AES-256-GCM encryption. 100% private in-browser tool with zero uploads.
How to Encrypt and Decrypt Files Offline
- Select your file: Choose any file (archive, video, document, photo) on your computer.
- Set a passphrase: Enter a password to generate a 256-bit AES cryptographic key with 100,000 PBKDF2 rounds.
- Encrypt safely: The file is encrypted directly in your browser and saved as a `.enc` container.
- Decrypt anytime: Drop the `.enc` file back into FileVeda and enter your password to restore the original file.
FileVeda vs Traditional File Lockers
Compare client-side cryptographic locks against cloud locker services.
| Feature | FileVeda In-Browser | Cloud Online Encryption Services | Desktop 7-Zip / WinRAR |
|---|---|---|---|
| Password & File Privacy | 100% In-Browser (Zero uploads) | Files & passwords sent over network | 100% Local |
| Cipher Mode | AES-256-GCM (Authenticated) | Varies / CBC Mode | AES-256-CBC |
| Key Derivation | PBKDF2 (100k rounds SHA-256) | Basic single-round hashing | PBKDF2 / SHA-256 |
| Cross-Platform Usability | Works in any phone/PC browser | Web only | Requires native app installation |
Architecture of AES-256-GCM Authenticated Encryption
FileVeda implements zero-knowledge encryption using standard primitives provided by W3C Web Cryptography:
Galois/Counter Mode (GCM)
Unlike older cipher modes like CBC or ECB, GCM is an Authenticated Encryption with Associated Data (AEAD) algorithm. It computes a 128-bit authentication tag that guarantees the file has not been modified or corrupted in transit.
PBKDF2 Key Stretching
User passwords undergo 100,000 iterations of HMAC-SHA256 with a cryptographically secure random 16-byte salt, rendering GPU dictionary attacks and rainbow tables ineffective.
Frequently Asked Questions
How strong is AES-256-GCM encryption?
AES-256-GCM is the gold standard authenticated symmetric encryption algorithm utilized by governments, defense contractors, and financial institutions. It provides both confidentiality and tamper detection.
Does FileVeda see, store, or log my password or files?
Never. All encryption and key derivation is executed locally in your browser memory via the native Web Cryptography API. There are zero cloud servers capturing your sensitive data.
What is PBKDF2 key stretching?
PBKDF2 passes your password through 100,000 rounds of HMAC-SHA256 with a unique 16-byte cryptographic salt, making brute-force and dictionary attacks computationally infeasible.
Can a forgotten password be recovered?
No. Because FileVeda utilizes zero-knowledge cryptography with no master key or backdoors, an encrypted .enc file cannot be decrypted without the exact password.
What happens if someone tampers with the encrypted file?
AES-GCM includes a 128-bit authentication tag. If even a single byte of the encrypted file is altered or corrupted, decryption fails immediately, preventing modified payload execution.
Can I decrypt .enc files on any device?
Yes. Simply visit FileVeda on any phone, tablet, Mac, Windows, or Linux browser, switch to 'Decrypt File', enter your password, and restore your original file.
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