Zero-Knowledge Vault Architecture
Credential theft remains the single most common entry point for ransomware and data breaches. Altide - Tower safeguards enterprise passwords with client-side mathematics rather than administrative trust.
Cryptographic Security Model
- Client-Side Key Derivation: The user master password combines with a 128-bit random salt through Argon2id (64MB memory cost, 3 iterations) to derive the master encryption key locally on the device.
- Double Envelope Key Wrapping: Individual vault item keys are wrapped with team asymmetric public keys (Curve25519), ensuring that only authorized team members possess the private keys needed to decrypt secrets.
- Encrypted Zero-Knowledge Sync: Synchronized records stored in Altide cloud storage contain only encrypted ciphertext blobs; even under total database seizure, records cannot be decrypted without local client keys.