How cryptographic deniability lets an encrypted chat authenticate its participants yet prove nothing to a third party — the OTR origin, Signal's offline deniability, and the legal caveat.
How prekey bundles let encrypted chat work when the recipient is offline: what they contain, how a sender derives a shared secret alone, and the key-substitution risk.
A mixnet batches, reorders, and delays encrypted traffic with cover noise to defeat timing analysis. How mix networks differ from Tor, and how RVNT layers both.
How X3DH lets two people share an encryption key when one is offline — the four Diffie-Hellman operations, what each provides, and the post-quantum upgrade.
An adversary who records your encrypted traffic today can wait years to decrypt it. Why long-lived secrets need post-quantum protection now, and how hybrid X25519 + ML-KEM-768 delivers it.
How does Tor work? An honest explainer on onion routing, guard/middle/exit relays, what each can and can't see, .onion services, Tor vs VPN, and Tor's real limits.
A beginner-friendly but technically correct explainer of the Double Ratchet: forward secrecy, break-in recovery, why deleting keys matters, and how RVNT uses it.
What is end-to-end encryption? A plain-English guide to how E2EE works, how it differs from TLS, who can and can't read your messages, and what it does not protect.
A March 2026 Google Quantum AI paper estimates that breaking 256-bit elliptic-curve cryptography needs ~1,200 logical qubits and under 500,000 physical ones — an order-of-magnitude drop. The machine still doesn't exist. Here's what that actually means for your encrypted messages.