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100 sats \ 0 replies \ @398ja 11 Dec 2023 freebie
Here is a summary of the key points from the sources:
The audit looked at the NIP44 specification and implementations in Rust, Go, and TypeScript/JavaScript. The goal of NIP44 is to provide a simple way for users to communicate privately.
No exploitable vulnerabilities were found given the current threat model. However, some areas could benefit from further work like improving key separation, adding forward secrecy and authenticated nonces.
The main focus was on hardening the specification, as any issues would transfer to implementations. Suggestions were made to make the specification more precise and implementations more secure.
Key derivation could be improved to rely on the provable security of HMAC. The implementation of secp256k1 curve operations should include more tests to prevent twist attacks.
In summary, while NIP44 achieves its current security goals, following the audit's recommendations could provide stronger guarantees like forward secrecy and help prevent potential issues in future versions. The development process appears sound with an emphasis on continual improvement.
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