0xChat
• Uses Nostr encryption:
• NIP-04 (older)
• NIP-44 (newer, better)
• Solid asymmetric crypto
• But:
• No built-in forward secrecy per message
• No post-compromise healing
• Relays can see traffic patterns

White Noise
• Uses MLS
• Features:
• Forward secrecy
• Post-compromise security
• Modern group crypto
• Much stronger against:
• key leaks
• compromised devices
• traffic analysis

So no, they do not use the same encryption, even though both are “E2EE”.

Same word, different weight class.