Crate hns_script 

Consensus-visible Handshake script, signature-hash, and fee-policy primitives.

Structs

FeeRate

Fee rate in dollarydoos per 1,000 HSD policy virtual bytes.

Instruction

One bounded, decoded script instruction.

K256SignatureVerifier

Pure Rust secp256k1 verifier backed by k256.

PolicyVirtualSize

Sigop-adjusted transaction size in HSD policy virtual bytes.

ScriptFlags

SigopCost

HSD signature-operation cost used by transaction policy sizing.

TransactionWeight

Serialized transaction weight, in HSD witness weight units.

UnavailableSignatureVerifier

Fail-closed verifier for builds which intentionally supply no secp256k1 backend.

Enums

FeePolicyError

ScriptError

Constants

HIP1_SELLER_SIGHASH

LOCKTIME_FLAG

LOCKTIME_GRANULARITY

LOCKTIME_MASK

LOCKTIME_MULTIPLIER

MAX_MULTISIG_PUBKEYS

Maximum number of public keys consumed by OP_CHECKMULTISIG.

MAX_POLICY_TRANSACTION_SIGOPS

Maximum standard transaction sigop cost admitted by the pinned HSD policy.

MAX_POLICY_TRANSACTION_WEIGHT

Maximum standard transaction weight admitted by the pinned HSD policy.

MAX_SCRIPT_OPS

Maximum number of non-push operations in a script.

MAX_SCRIPT_PUSH

Maximum size of an individual pushed stack item.

MAX_SCRIPT_SIZE

Maximum serialized script size accepted by HSD consensus.

MAX_SCRIPT_STACK

Maximum combined main- and alternate-stack item count.

MIN_RELAY_FEE_RATE

HSD’s default minimum relay rate in dollarydoos per 1,000 policy virtual bytes.

OP_0

OP_0NOTEQUAL

OP_1

OP_2

OP_3

OP_4

OP_5

OP_6

OP_7

OP_8

OP_9

OP_1ADD

OP_1NEGATE

OP_1SUB

OP_2DIV

OP_2DROP

OP_2DUP

OP_2MUL

OP_2OVER

OP_2ROT

OP_2SWAP

OP_3DUP

OP_10

OP_11

OP_12

OP_13

OP_14

OP_15

OP_16

OP_ABS

OP_ADD

OP_AND

OP_BLAKE160

OP_BLAKE256

OP_BOOLAND

OP_BOOLOR

OP_CAT

OP_CHECKLOCKTIMEVERIFY

OP_CHECKMULTISIG

OP_CHECKMULTISIGVERIFY

OP_CHECKSEQUENCEVERIFY

OP_CHECKSIG

OP_CHECKSIGVERIFY

OP_CODESEPARATOR

OP_DEPTH

OP_DIV

OP_DROP

OP_DUP

OP_ELSE

OP_ENDIF

OP_EQUAL

OP_EQUALVERIFY

OP_FROMALTSTACK

OP_GREATERTHAN

OP_GREATERTHANOREQUAL

OP_HASH160

OP_HASH256

OP_IF

OP_IFDUP

OP_INVALIDOPCODE

OP_INVERT

OP_KECCAK

OP_LEFT

OP_LESSTHAN

OP_LESSTHANOREQUAL

OP_LSHIFT

OP_MAX

OP_MIN

OP_MOD

OP_MUL

OP_NEGATE

OP_NIP

OP_NOP

OP_NOP1

OP_NOP4

OP_NOP5

OP_NOP6

OP_NOP7

OP_NOP8

OP_NOP9

OP_NOP10

OP_NOT

OP_NOTIF

OP_NUMEQUAL

OP_NUMEQUALVERIFY

OP_NUMNOTEQUAL

OP_OR

OP_OVER

OP_PICK

OP_PUSHDATA1

OP_PUSHDATA2

OP_PUSHDATA4

OP_RESERVED

OP_RESERVED1

OP_RESERVED2

OP_RETURN

OP_RIGHT

OP_RIPEMD160

OP_ROLL

OP_ROT

OP_RSHIFT

OP_SHA1

OP_SHA3

OP_SHA256

OP_SIZE

OP_SUB

OP_SUBSTR

OP_SWAP

OP_TOALTSTACK

OP_TUCK

OP_TYPE

OP_VER

OP_VERIF

OP_VERIFY

OP_VERNOTIF

OP_WITHIN

OP_XOR

POLICY_BYTES_PER_SIGOP

HSD weight units charged per signature operation for policy sizing.

POLICY_FEE_RATE_SCALE

Number of policy virtual bytes in HSD’s fee-rate unit.

POLICY_WITNESS_SCALE_FACTOR

HSD witness weight units per policy virtual byte.

SEQUENCE_DISABLE_FLAG

SEQUENCE_GRANULARITY

SEQUENCE_MASK

SEQUENCE_TYPE_FLAG

SIGHASH_ALL

SIGHASH_ANYONE_CAN_PAY

SIGHASH_BASE_MASK

SIGHASH_NOINPUT

SIGHASH_NONE

SIGHASH_SINGLE

SIGHASH_SINGLE_REVERSE

Traits

SignatureVerifier

Pluggable compact-secp256k1 verifier used by the runtime-independent interpreter. Implementations must enforce HSD’s low-S encoding rule.

Functions

count_script_sigops

Count HSD witness sigops without executing the script. A malformed trailing push terminates scanning after the valid prefix, matching HSD.

execute_script

Execute one script against an existing stack. The caller retains the final stack, making this useful below witness-program policy while remaining bounded and independent of any async runtime or storage.

is_valid_signature_hash_type

minimum_policy_fee

Calculate HSD’s minimum policy fee for a virtual size and fee rate.

parse_script

Parse a serialized script using HSD’s pushdata encoding and consensus size bound. Push-size policy is enforced by execution so callers can inspect a syntactically valid script containing an oversized push.

signature_hash

sigop_adjusted_virtual_size

Calculate HSD’s sigop-adjusted policy virtual size.

transaction_policy_virtual_size

Calculate the exact HSD policy virtual size for a transaction and its resolved input coins.

transaction_sigops

verify_locktime_predicate

verify_sequence_predicate

verify_witness_program

witness_program_sigops