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Make low-s verification mandatory for standard script verification

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1.8.3 backport

This change makes a node only accept transactions with low-s
signature encoding for relay and mining, but allows transactions
with high-s signature encoding in mined blocks (no blocks will
be rejected)
This commit is contained in:
Patrick Lodder 2015-10-17 13:30:23 +02:00
parent 6f41e4473d
commit 876e01e16c
1 changed files with 2 additions and 1 deletions
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src/script.h
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@ -207,7 +207,8 @@ static const unsigned int MANDATORY_SCRIPT_VERIFY_FLAGS = SCRIPT_VERIFY_P2SH;
// blocks and we must accept those blocks.
static const unsigned int STANDARD_SCRIPT_VERIFY_FLAGS = MANDATORY_SCRIPT_VERIFY_FLAGS |
SCRIPT_VERIFY_STRICTENC |
SCRIPT_VERIFY_NULLDUMMY;
SCRIPT_VERIFY_NULLDUMMY |
SCRIPT_VERIFY_LOW_S;
// For convenience, standard but not mandatory verify flags.
static const unsigned int STANDARD_NOT_MANDATORY_VERIFY_FLAGS = STANDARD_SCRIPT_VERIFY_FLAGS & ~MANDATORY_SCRIPT_VERIFY_FLAGS;