Dear List, Can anyone think of a reason to keep OP_CHECKSIGFROMSTACKVERIFY as NOP5 available in legacy script?
Currently Brandon and I are leaning towards simply removing CSFSV from LNhance and from the CSFS BIP. Reasoning: * CSFS is more likely to be used in Symmetry * In case where CSFSV is desired OP_CSFS OP_VERIFY is perfectly workable. * Simplifies code * Don't have an actual use case for CSFSV in legacy rn * Upgradeable NOPs are scarce * Backporting tapscript would bring all functionality to legacy BR, moonsettler Sent with Proton Mail secure email. On Friday, November 15th, 2024 at 4:33 PM, 'Antoine Poinsot' via Bitcoin Development Mailing List <[email protected]> wrote: > To add to Murch's point, from my experience working with Script in general and > trying to estimate the cost of validation of legacy script as part of the > consensus cleanup in particular, i think we should refrain from modifying > legacy > Script and further complicate reasoning about the worst case unless strictly > necessary. > > Best, > Antoine > > On Friday, November 15th, 2024 at 9:57 AM, Murch [email protected] wrote: > > > Hi everyone, > > > > On 2024-11-14 17:02, Brandon Black wrote: > > > > > * Should CHECKSIGFROMSTACKVERIFY (CSFSV) be added to pre-tapscript > > > […] > > > My personal thinking in initially including CSFSV in earlier script > > > versions was basically that it's compatible with NOP forking, so why not. > > > > If there is no compelling use case or concrete benefit, I don’t think "it’s > > compatible, why not" is convincing motivation, especially at the cost of a > > NOP. > > > > On 2024-11-14 17:02, Brandon Black wrote: > > > > > * Should we include CHECKSIGFROMSTACKADD? > > > > I feel similar about this. If there is currently no demand for this, and > > future demand also seems unlikely, I would prefer a smaller, more focused > > set of changes. > > > > Cheers, > > Murch > > > > -- > > You received this message because you are subscribed to the Google Groups > > "Bitcoin Development Mailing List" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to [email protected]. > > To view this discussion visit > > https://groups.google.com/d/msgid/bitcoindev/c91269ac-e579-4089-bf9a-fdc076e34727%40murch.one. > > > -- > You received this message because you are subscribed to the Google Groups > "Bitcoin Development Mailing List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/bitcoindev/nRFLHRhwXER56TrZy50tJ2HmvipjteXzPfz6mEs_VmyZ5sXDNVUIUniPppSphF5SOVCQmpRZSjmBN8_eIMZEbdFgl3vJn-8XSEmpAFmj5SM%3D%40protonmail.com. -- You received this message because you are subscribed to the Google Groups "Bitcoin Development Mailing List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/bitcoindev/_p-Du0dVGx1_UqtSLb7UpQRrHWP0JVQOGFeZ3-W-m8eZNNshMsW_oFXw07nAZEnP-YZO6sBn9iF-RY7qK15jxCjQPBMc4LZ-4cesUuRose8%3D%40protonmail.com.
