Dev Tools · 3h ago
XChaCha20-Poly1305 Powers Mesh Network Encryption
GhostWire mesh network uses XChaCha20-Poly1305 for encryption, chosen over AES-256-GCM for constant-time performance on devices without hardware acceleration. The cipher's 192-bit nonce supports millions of messages per key, critical for mesh environments. Implementation uses X25519 key exchange and HKDF key derivation.
Meridian48 take
The article provides a solid technical rationale for choosing XChaCha20 over AES in constrained mesh networks, but lacks performance benchmarks or real-world deployment data.
encryptionmesh-network