Module policy 

Mempool transaction standardness policy checks.

These functions implement zcashd’s mempool policy for rejecting non-standard transactions. They mirror the logic in zcashd’s IsStandardTx() and AreInputsStandard().

Constants

MAX_P2SH_SIGOPS 🔒

Maximum sigops allowed in a P2SH redeemed script (zcashd MAX_P2SH_SIGOPS). https://github.com/zcash/zcash/blob/v6.11.0/src/policy/policy.h#L20

MAX_STANDARD_MULTISIG_PUBKEYS 🔒

Maximum number of public keys allowed in a standard multisig script. https://github.com/zcash/zcash/blob/v6.11.0/src/policy/policy.cpp#L46-L48

MAX_STANDARD_SCRIPTSIG_SIZE 🔒

Maximum size in bytes of a standard transaction’s scriptSig (zcashd MAX_STANDARD_SCRIPTSIG_SIZE). https://github.com/zcash/zcash/blob/v6.11.0/src/policy/policy.cpp#L92-L99

MAX_STANDARD_TX_SIGOPS 🔒

Maximum number of signature operations allowed per standard transaction (zcashd MAX_STANDARD_TX_SIGOPS). https://github.com/zcash/zcash/blob/v6.11.0/src/policy/policy.h#L22

Functions

are_inputs_standard 🔒

Returns true if all transparent inputs are standard.

count_script_push_ops 🔒

Count the number of push operations in a script.

extract_p2sh_redeemed_script 🔒

Extract the redeemed script bytes from a P2SH scriptSig.

p2sh_redeemed_script_sigop_count 🔒

Extracts the P2SH redeemed script’s sigop count for a single input.

p2sh_sigop_count 🔒

Returns the total number of P2SH sigops across all inputs of the transaction.

script_sig_args_expected 🔒

Returns the expected number of scriptSig arguments for a given script kind.

standard_script_kind 🔒

Classify a script using the zcash_script solver.