Client-Side Encrypted Password Manager: Zero-Knowledge AES-256-GCM & PBKDF2 Architecture
Cloud-hosted credential vaults present persistent attack vectors: centralized database leaks, third-party insider risks, and subpoena exposure threaten millions of user records simultaneously. The Kriyasya Password Manager represents a sovereign, client-side cryptographic paradigm. Operating under strict zero-knowledge principles, your credentials, financial card details, and identity secrets are encrypted locally inside your device using military-grade AES-256-GCM before entering storage. Without your master password, the stored vault is mathematically indistinguishable from random digital noise.
Cryptographic Architecture: Zero-Knowledge Pipeline
The internal security mechanism relies on standard cryptographic primitives defined by RFC 8018 and NIST Special Publications:
Ciphertext = AES-256-GCM(Vault Key, PlaintextData, IV=96 bits, Tag=128 bits)
Detailed cryptographic breakdown:
- PBKDF2 Key Stretching: Your master password undergoes 600,000 rounds of HMAC-SHA256 hashing alongside a 128-bit cryptographically unique salt. This computational hardness drastically slows down offline dictionary and GPU attacks.
- AES-256-GCM Authenticated Encryption: Once derived, the 256-bit symmetric key encrypts the JSON vault payload using Galois/Counter Mode. GCM combines confidentiality with authenticated data integrity: any unauthorized tampering with the ciphertext triggers instant cryptographic rejection.
- Ephemeral Session Memory: The derived encryption key is maintained exclusively in volatile browser RAM while your vault remains unlocked. Upon locking, closing the tab, or session expiration, the key is permanently cleared from runtime memory.
Vault Capabilities & Management Suite
- Unified Credential Organization: Store website logins, credit and debit cards, server SSH keys, and custom secure fields with searchable metadata.
- Integrated Password Generator: Spawn high-entropy, unique credentials on the fly without leaving the active entry workflow.
- One-Click Clipboard Security: Automatically copy usernames and passwords to your clipboard with zero visual exposure to shoulder surfers.
- Encrypted JSON Backup & Export: Export your entire encrypted vault to an offline encrypted backup file for safe air-gapped archival.
Frequently Asked Questions
Can Kriyasya recover my passwords if I lose my master password?
No. True zero-knowledge architecture means no backdoors exist. Your master password is never transmitted across the network or stored on any server. If you lose your master password, decrypting the vault is mathematically impossible.
Where are my encrypted passwords physically stored?
Your vault is stored exclusively in your local browser sandbox (IndexedDB / LocalStorage) in an AES-256-GCM encrypted state. No cloud servers hold a copy of your database.
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