Zero-Knowledge Architecture: What It Means for Your Privacy

What is Zero-Knowledge Architecture?

Zero-knowledge architecture is a security model where the service provider has no ability to access the data stored on their servers. In Stagic's implementation, all encryption and decryption happens on your device before any data is transmitted.

How It Works

1. Client-Side Encryption: When you create or modify data, it's encrypted on your device using keys only you possess.

Encrypted Transmission: Only encrypted data travels over the network and is stored on our servers.

Local Decryption: When you access your data, it's downloaded in encrypted form and decrypted locally on your device.

Why This Matters

Traditional cloud services encrypt your data, but they hold the encryption keys. This means:

They can access your data if compelled by legal authorities

A breach of their systems could expose your unencrypted data

You're trusting their security practices and policies

With zero-knowledge architecture, even if our servers were completely compromised, attackers would only find encrypted data that's mathematically impossible to decrypt without your keys.

Stagic's Implementation

At Stagic, we use AES-256-GCM for symmetric encryption and X25519 for key exchange. Your master password never leaves your device—instead, we derive encryption keys locally using Argon2id.

Key Features

- No Password Recovery: We can't reset your password because we don't have it. This is by design.

End-to-End Encryption: From your device to our servers and back, data is always encrypted.

Forward Secrecy: Session keys are regularly rotated to protect against future key compromises.

Conclusion

Zero-knowledge architecture represents a fundamental shift in how we think about data security. Instead of trusting service providers with your data, you maintain complete control. At Stagic, we believe this is the only acceptable approach to privacy in the digital age.