[bitcoin-dev] SIGHASH_ANYPREVOUT proposal

2019-05-11 Thread Anthony Towns via bitcoin-dev
Hi everybody! Here is a followup BIP draft that enables SIGHASH_ANYPREVOUT and SIGHASH_ANYPREVOUTANYSCRIPT on top of taproot/tapscript. (This is NOINPUT, despite the name change) I don't think we are (or should be) as confident that ANYPREVOUT is ready for implementation and deployment as we are

Re: [bitcoin-dev] Taproot proposal

2019-05-11 Thread ZmnSCPxj via bitcoin-dev
Good morning Johnson, > > > Some way to sign an additional script (not committed to by the witness > > > program) seems like it could be a trivial addition. > > > > It seems to me the annex can be used for this, by having it contain both > > the script and the signature somehow concatenated. >