0

Lightning Network uses Revocable Sequence Maturing Contracts.

The LN Paper specifies that:

If one wishes to permit revocable transactions [...] the output transaction construction would remain a 2-of-2 multisig:

2 Alice1 Bob1 2 OP CHECKMULTISIG

However, the current implementation uses elliptic curve point multiplication (not multisig). I have found this information in BOLT03 - to_local, but also here.

The benefits of the current approach are:

  • smaller size of the Output Script
  • only one signature required to unlock (vs 2 in the original spec)

Are there any other considerations besides these two for using elliptic curve point multiplication instead of multisig?

2
  • The output referred to in your citation from the paper is the funding transaction output, which is still the same: github.com/lightningnetwork/lightning-rfc/blob/master/…. The commitment transaction (RSMC) spends this output to one or more outputs.
    – Mark H
    Commented Feb 15, 2021 at 16:05
  • Thanks Mark! I'm still trying to fully understand the LN Paper. But I think it does not refer to the funding transaction output, it does not make much sense in the given context. Either way, do we know if originally the revocation was a multisig and then changed to eliptic curve point multiplication, and why?
    – Vlad Stan
    Commented Feb 16, 2021 at 8:51

0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Browse other questions tagged or ask your own question.