Peter Todd 03914234b3 Discourage NOPs reserved for soft-fork upgrades ... NOP1 to NOP10 are reserved for future soft-fork upgrades. In the event of an upgrade such NOPs have *VERIFY behavior, meaning that if their arguments are not correct the script fails. Discouraging these NOPs by rejecting transactions containing them from the mempool ensures that we'll never accept transactions, nor mine blocks, with scripts that are now invalid according to the majority of hashing power even if we're not yet upgraded. Previously this wasn't an issue as the IsStandard() rules didn't allow upgradable NOPs anyway, but 7f3b4e95 relaxed the IsStandard() rules for P2SH redemptions allowing any redeemScript to be spent. We *do* allow upgradable NOPs in scripts so long as they are not executed. This is harmless as there is no opportunity for the script to be invalid post-upgrade.		2014-11-17 22:22:33 -05:00
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interpreter.cpp	Discourage NOPs reserved for soft-fork upgrades	2014-11-17 22:22:33 -05:00
interpreter.h	Discourage NOPs reserved for soft-fork upgrades	2014-11-17 22:22:33 -05:00
script.cpp	Add SCRIPT_VERIFY_MINIMALDATA (BIP62 rules 3 and 4)	2014-10-25 03:03:20 -07:00
script.h	Make comments in /src/script doxygen compatible	2014-11-10 14:51:55 +08:00
script_error.cpp	Discourage NOPs reserved for soft-fork upgrades	2014-11-17 22:22:33 -05:00
script_error.h	Discourage NOPs reserved for soft-fork upgrades	2014-11-17 22:22:33 -05:00
sigcache.cpp	Make comments in /src/script doxygen compatible	2014-11-10 14:51:55 +08:00
sigcache.h	Fix all header defines	2014-11-03 16:16:40 +01:00
sign.cpp	Make comments in /src/script doxygen compatible	2014-11-10 14:51:55 +08:00
sign.h	Make comments in /src/script doxygen compatible	2014-11-10 14:51:55 +08:00
standard.cpp	Make comments in /src/script doxygen compatible	2014-11-10 14:51:55 +08:00
standard.h	Discourage NOPs reserved for soft-fork upgrades	2014-11-17 22:22:33 -05:00