Introduce per-txin sighash midstate cache for legacy/p2sh/segwitv0 scripts - #1581

Introduce per-txin sighash midstate cache for legacy/p2sh/segwitv0 scripts#1581

tomt1664 wants to merge 3 commits into

ElementsProject:masterElementsProject/elements:masterfrom

tomt1664:sighashcache_rangeproof_updatetomt1664/elements:sighashcache_rangeproof_updateCopy head branch name to clipboard