Fix crash when creating large inputs#1014

Merged

apoelstra merged 2 commits intoElementsProject:masterfrom apoelstra:2021-06--fix-surjectionproof-crash

Aug 30, 2021

+38

Commits on Jul 1, 2021

blind.cpp: refuse to create surjection proofs that would trigger an assertation failure
apoelstra
committed
blind: add functional test that attempting to spend more than 256 inputs fails "gracefully"
apoelstra
committed