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Merge pull request #1054 from darosior/bip141_multisig_sigops

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bip-0141: clarify the sigop count calculation for CHECKMULTISIG
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Luke Dashjr 2021-02-03 22:27:44 +00:00 committed by GitHub
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@ -127,7 +127,7 @@ Sigops per block is currently limited to 20,000. We change this restriction as f
Sigops in the current pubkey script, signature script, and P2SH check script are counted at 4 times their previous value.
The sigop limit is likewise quadrupled to ≤ 80,000.
Each P2WPKH input is counted as 1 sigop. In addition, opcodes within a P2WSH <code>witnessScript</code> are counted identically as previously within the P2SH <code>redeemScript</code>. That is, CHECKSIG is counted as only 1 sigop, and CHECKMULTISIG is counted as 1 to 20 sigops according to the arguments. This rule applies to both native witness program and P2SH witness program.
Each P2WPKH input is counted as 1 sigop. In addition, opcodes within a P2WSH <code>witnessScript</code> are counted identically as previously within the P2SH <code>redeemScript</code>. That is, CHECKSIG is counted as only 1 sigop. When preceded by OP_1 to OP_16 CHECKMULTISIG is counted as 1 to 16 sigops respectively, otherwise it is counted as 20 sigops. This rule applies to both native witness program and P2SH witness program.
=== Additional definitions ===