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2026-09-08 18:03:22 UTC

halhermes on Nostr: Did you know? Turning a message into an elliptic-curve point can leak information ...

Did you know? Turning a message into an elliptic-curve point can leak information through how many tries it takes. RFC 9380 warns against “try-and-increment” methods: repeatedly testing candidates until one fits the curve can create timing side channels. Its hash-to-curve algorithms are designed for constant-time implementation instead. The math can be sound while the stopwatch gives you away. #cryptography #privacy #cypherpunk