Antoine Poinsot 644610f7b8 bip-0141: clarify the sigop count calculation for CHECKMULTISIG ...

Since the sigOpCount calculation was copied from P2SH, and P2SH
restricts the use of CHECKMULTISIG with pushed integers the reference
implementation would not take into account the number of public keys for
17 to 20 keys (not representable with an OP_N) even for P2WSH.
Therefore it fallbacks to accounting for 20 sigops in this case, which
this sentence seemed to mismatch with.

Btcd and Libbitcoin use the same calculation as in Bitcoin Core.

Signed-off-by: Antoine Poinsot <darosior@protonmail.com>

2021-01-11 10:53:59 +01:00

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