[bitcoin-dev] SIGHASH2 for version 1 witness programme

Johnson Lau jl2012 at xbt.hk
Fri Jun 1 18:45:57 UTC 2018



> On 2 Jun 2018, at 2:15 AM, Russell O'Connor <roconnor at blockstream.io> wrote:
> 
> 
> I prefer a different opcode for CHECKSIGFROMSTACK because I dislike opcodes that pop a non-static number of elements off the stack.  Popping a dynamic number of stack elements makes it more difficult to validate that a Script pubkey doesn't allow any funny business.


Agreed. This is one of the reasons I think we should remove CHECKMULTISIG in the new script system
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