X25519 Ephemeral ECDH Exchange: Defending Against Harvest-Now-Decrypt-Later Attacks in Wonek
Technical specification for X25519 Ephemeral ECDH Exchange (Defending Against Harvest-Now-Decrypt-Later Attacks) in Wonek's direct P2P and MLS end-to-end encrypted communication stack.
| Cryptographic Layer | X25519 Ephemeral ECDH Exchange | Wonek Implementation |
|---|---|---|
| Focus Area | Defending Against Harvest-Now-Decrypt-Later Attacks | Zero-knowledge on-device execution on iOS & macOS |
| Transport Binding | Direct P2P QUIC/WebRTC + MLS RFC 9420 | No central plaintext relay or cloud key escrow |
Frequently Asked Questions
How does Wonek implement X25519 Ephemeral ECDH Exchange?
Wonek executes X25519 Ephemeral ECDH Exchange directly on Apple devices with zero server-side key access.
Wonek — Direct P2P & MLS E2EE — Native Apple Silicon & iOS Engineering
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