StegoSafe: Hiding Secrets in Images with Encryption and Secret Sharing

StegoSafe Web Demo: Encrypt. Split. Vanish.

This short video (less than 1 minute) demonstrates the core workflow of StegoSafe:

• Encrypt your secret with AES-256
• Split the key using Shamir’s Secret Sharing (3-of-5 recovery)
• Hide the encrypted secret inside lossless PNG images using LSB steganography
• Recover the secret by uploading the required images and key shares

How StegoSafe Works (Web Version)

StegoSafe is a privacy-focused tool for hiding sensitive data inside ordinary images. The web version runs 100% locally in your browser—no uploads, no tracking, and no cloud dependencies. The process is simple:

1. Choose your secret (text, password, seed phrase)
2. Encrypt it with a password (AES-256)
3. Split the decryption key into 5 shares (Shamir’s Secret Sharing)
4. Hide the encrypted secret and shares inside 5 PNG images
5. To recover, upload any 3 of the images and enter your password

This approach ensures:

• Your data is never exposed to the internet
• Even if some images are lost, your secret can still be recovered
• Without enough shares, the secret remains mathematically unrecoverable

Security Highlights

• AES-256 encryption: Industry-standard, strong symmetric encryption
• Shamir’s Secret Sharing: Threshold cryptography for robust recovery and deniability
• LSB steganography: Hides data in the least significant bits of PNG images, invisible to the naked eye
• 100% local execution: No server-side risk, no metadata leakage

Why Use StegoSafe?

• Privacy: No cloud, no account, no logs—your secrets stay with you
• Resilience: Lose up to 2 images, still recover your secret
• Plausible deniability: Even if images are found, proving the existence of hidden data is difficult
• Open philosophy: CLI tools are open-source; web version is closed-source for integrity and anti-abuse (see FAQ)

Connection to Our Research

StegoSafe complements our Secured VLAN project by protecting data at rest, while VLANs and firewalls protect data in transit. Both follow the principle of layered security: make attacks harder, detection less likely, and recovery possible even after partial loss.

For a technical deep dive, see our StegoSafe project article or visit stegosafe.com for more details and CLI tools.

Conclusion

StegoSafe is a modern, practical tool for anyone needing to hide, split, and recover secrets securely—ideal for privacy advocates, security researchers, and anyone who values control over their sensitive data.