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MuSig BIP Draft TODOs #169

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11 of 12 tasks
jonasnick opened this issue Mar 2, 2022 · 1 comment
Closed
11 of 12 tasks

MuSig BIP Draft TODOs #169

jonasnick opened this issue Mar 2, 2022 · 1 comment

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@jonasnick
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jonasnick commented Mar 2, 2022 •
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  • Add tweaking (Add ordinary and x-only tweaking to spec and simplify implementation #167).
  • Add reference code (musig-spec: Add naive Python reference implementation #166).
  • Try to avoid O(n²) algorithm for finding of second unique key
  • Add more test vectors (in particular, test vectors that result in failure).
  • Add proper design and motivation section.
    • Mention that sorting the keys is optional and why.
  • Improve nonce derivation.
    • As specified right now, if the output of the RNG used as the secret nonce ever repeats, the secret key leaks immediately. It is possible to (slightly) reduce the possibility of nonce reuse by deriving the secret nonce from the RNG output, aggregate public key and message.
    • Mention "counter mode" nonce derivation, i.e. deriving from secret key and non-repeating counter.
    • Add BIP 340-like sidechannel resistance.
    • Explain deterministic nonce derivation 2-of-2 nonce example.
  • Post BIP draft to bitcoin-dev mailing list.
@jonasnick
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Moved BIP draft to https://github.com/jonasnick/bips/blob/musig2/bip-musig2.mediawiki

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