Files
grim/src/tor
2ro ef58f260e8 harden(nostr): cap relay ws frames and zeroize conversation keys
Two self-contained hardening measures:

- WebSocket frame cap: the Tor relay transport dialed every relay with
  tungstenite's default 64 MiB message / 16 MiB frame ceiling. Pass a
  WebSocketConfig capping both to 4 MiB via client_async_tls_with_config, so
  a hostile or buggy relay can't stream a giant frame into wallet memory. The
  pool only requires max_message_length >= 128 KiB and the wallet's own events
  are far smaller, so 4 MiB keeps ample headroom.

- Secret zeroization: the raw NIP-44 v3 ECDH conversation keys in wrapv3.rs
  are now Zeroizing<[u8; 32]> so they are scrubbed from memory on drop instead
  of lingering. zeroize (already a transitive dep) is pulled in directly.

Adds a ws-config test asserting the caps sit below the tungstenite defaults
and above the pool minimum.
2026-07-05 06:08:25 -04:00
..