Merge bitcoin/bitcoin#23118: test: refactor: introduce `script_util` helper for creating P2PK scripts

429b49378e test: introduce script_util helper for creating P2PK scripts (Sebastian Falbesoner)

Pull request description:

  This PR is a follow-up to #22363, which took use of already existing `script_util` helpers to get rid of manual CScript for the P2{PKH,SH,WPKH,WSH} output types, in order to increase readability and maintainability of the test code. Here the same is done for P2PK scripts by introducing a helper `key_to_p2pk_script` and using it. Note that the helper only accepts ECDSA pubkeys (i.e. ones with a size of 33 or 65 bytes), hence it can't be used for scripts in the form of [x-only-pubkey, OP_CHECKSIG].

ACKs for top commit:
  brunoerg:
    Code review ACK 429b49378e
  laanwj:
    Code review ACK 429b49378e
  rajarshimaitra:
    Concept + tACK 429b49378e

Tree-SHA512: 984aea01eba5f38a328d69905d90a3a36f0a02419ca3e5baf3c8095895fb094e3780c7da16fad5851db3847bdb05ce8cda244ab09b79b8aa9602dfb3c5e0414c
pull/826/head
W. J. van der Laan 3 years ago
commit 991753e4d5
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GPG Key ID: 1E4AED62986CD25D

@ -31,11 +31,11 @@ from test_framework.script import (
OP_1,
OP_2,
OP_CHECKMULTISIG,
OP_CHECKSIG,
OP_DROP,
OP_TRUE,
)
from test_framework.script_util import (
key_to_p2pk_script,
key_to_p2pkh_script,
key_to_p2wpkh_script,
script_to_p2sh_script,
@ -459,7 +459,7 @@ class SegWitTest(BitcoinTestFramework):
importlist.append(script_to_p2wsh_script(bare).hex())
else:
pubkey = bytes.fromhex(v['pubkey'])
p2pk = CScript([pubkey, OP_CHECKSIG])
p2pk = key_to_p2pk_script(pubkey)
p2pkh = key_to_p2pkh_script(pubkey)
importlist.append(p2pk.hex())
importlist.append(p2pkh.hex())
@ -628,7 +628,7 @@ class SegWitTest(BitcoinTestFramework):
pubkey = bytes.fromhex(v['pubkey'])
p2wpkh = key_to_p2wpkh_script(pubkey)
p2sh_p2wpkh = script_to_p2sh_script(p2wpkh)
p2pk = CScript([pubkey, OP_CHECKSIG])
p2pk = key_to_p2pk_script(pubkey)
p2pkh = CScript(bytes.fromhex(v['scriptPubKey']))
p2sh_p2pk = script_to_p2sh_script(p2pk)
p2sh_p2pkh = script_to_p2sh_script(p2pkh)

@ -76,6 +76,7 @@ from test_framework.script import (
taproot_construct,
)
from test_framework.script_util import (
key_to_p2pk_script,
key_to_p2wpkh_script,
keyhash_to_p2pkh_script,
script_to_p2sh_script,
@ -1109,7 +1110,7 @@ def spenders_taproot_active():
for witv0 in [False, True]:
for hashtype in VALID_SIGHASHES_ECDSA + [random.randrange(0x04, 0x80), random.randrange(0x84, 0x100)]:
standard = (hashtype in VALID_SIGHASHES_ECDSA) and (compressed or not witv0)
add_spender(spenders, "legacy/pk-wrongkey", hashtype=hashtype, p2sh=p2sh, witv0=witv0, standard=standard, script=CScript([pubkey1, OP_CHECKSIG]), **SINGLE_SIG, key=eckey1, failure={"key": eckey2}, sigops_weight=4-3*witv0, **ERR_NO_SUCCESS)
add_spender(spenders, "legacy/pk-wrongkey", hashtype=hashtype, p2sh=p2sh, witv0=witv0, standard=standard, script=key_to_p2pk_script(pubkey1), **SINGLE_SIG, key=eckey1, failure={"key": eckey2}, sigops_weight=4-3*witv0, **ERR_NO_SUCCESS)
add_spender(spenders, "legacy/pkh-sighashflip", hashtype=hashtype, p2sh=p2sh, witv0=witv0, standard=standard, pkh=pubkey1, key=eckey1, **SIGHASH_BITFLIP, sigops_weight=4-3*witv0, **ERR_NO_SUCCESS)
# Verify that OP_CHECKSIGADD wasn't accidentally added to pre-taproot validation logic.

@ -72,6 +72,7 @@ from test_framework.script import (
hash160,
)
from test_framework.script_util import (
key_to_p2pk_script,
key_to_p2wpkh_script,
keyhash_to_p2pkh_script,
script_to_p2sh_script,
@ -1455,7 +1456,7 @@ class SegWitTest(BitcoinTestFramework):
# Now try to spend it. Send it to a P2WSH output, which we'll
# use in the next test.
witness_script = CScript([pubkey, CScriptOp(OP_CHECKSIG)])
witness_script = key_to_p2pk_script(pubkey)
script_wsh = script_to_p2wsh_script(witness_script)
tx2 = CTransaction()
@ -1533,7 +1534,7 @@ class SegWitTest(BitcoinTestFramework):
key.generate()
pubkey = key.get_pubkey().get_bytes()
witness_script = CScript([pubkey, CScriptOp(OP_CHECKSIG)])
witness_script = key_to_p2pk_script(pubkey)
script_pubkey = script_to_p2wsh_script(witness_script)
# First create a witness output for use in the tests.

@ -25,12 +25,12 @@ from test_framework.messages import (
from test_framework.script import (
CScript,
OP_CHECKLOCKTIMEVERIFY,
OP_CHECKSIG,
OP_CHECKSEQUENCEVERIFY,
OP_DROP,
OP_TRUE,
)
from test_framework.script_util import (
key_to_p2pk_script,
key_to_p2pkh_script,
script_to_p2sh_p2wsh_script,
script_to_p2wsh_script,
@ -229,7 +229,7 @@ class SignRawTransactionsTest(BitcoinTestFramework):
embedded_pubkey = eckey.get_pubkey().get_bytes().hex()
witness_script = {
'P2PKH': key_to_p2pkh_script(embedded_pubkey).hex(),
'P2PK': CScript([bytes.fromhex(embedded_pubkey), OP_CHECKSIG]).hex()
'P2PK': key_to_p2pk_script(embedded_pubkey).hex()
}.get(tx_type, "Invalid tx_type")
redeem_script = script_to_p2wsh_script(witness_script).hex()
addr = script_to_p2sh(redeem_script)

@ -33,11 +33,11 @@ from .script import (
CScriptOp,
OP_1,
OP_CHECKMULTISIG,
OP_CHECKSIG,
OP_RETURN,
OP_TRUE,
)
from .script_util import (
key_to_p2pk_script,
key_to_p2wpkh_script,
script_to_p2wsh_script,
)
@ -134,7 +134,7 @@ def create_coinbase(height, pubkey=None, extra_output_script=None, fees=0, nValu
coinbaseoutput.nValue >>= halvings
coinbaseoutput.nValue += fees
if pubkey is not None:
coinbaseoutput.scriptPubKey = CScript([pubkey, OP_CHECKSIG])
coinbaseoutput.scriptPubKey = key_to_p2pk_script(pubkey)
else:
coinbaseoutput.scriptPubKey = CScript([OP_TRUE])
coinbase.vout = [coinbaseoutput]

@ -5,14 +5,14 @@
"""Useful Script constants and utils."""
from test_framework.script import (
CScript,
hash160,
sha256,
OP_0,
OP_DUP,
OP_HASH160,
OP_CHECKSIG,
OP_DUP,
OP_EQUAL,
OP_EQUALVERIFY,
OP_HASH160,
hash160,
sha256,
)
# To prevent a "tx-size-small" policy rule error, a transaction has to have a
@ -36,6 +36,11 @@ DUMMY_P2WPKH_SCRIPT = CScript([b'a' * 21])
DUMMY_2_P2WPKH_SCRIPT = CScript([b'b' * 21])
def key_to_p2pk_script(key):
key = check_key(key)
return CScript([key, OP_CHECKSIG])
def keyhash_to_p2pkh_script(hash):
assert len(hash) == 20
return CScript([OP_DUP, OP_HASH160, hash, OP_EQUALVERIFY, OP_CHECKSIG])

@ -24,12 +24,14 @@ from test_framework.messages import (
from test_framework.script import (
CScript,
LegacySignatureHash,
OP_CHECKSIG,
OP_TRUE,
OP_NOP,
SIGHASH_ALL,
)
from test_framework.script_util import key_to_p2wpkh_script
from test_framework.script_util import (
key_to_p2pk_script,
key_to_p2wpkh_script,
)
from test_framework.util import (
assert_equal,
assert_greater_than_or_equal,
@ -75,7 +77,7 @@ class MiniWallet:
self._priv_key = ECKey()
self._priv_key.set((1).to_bytes(32, 'big'), True)
pub_key = self._priv_key.get_pubkey()
self._scriptPubKey = bytes(CScript([pub_key.get_bytes(), OP_CHECKSIG]))
self._scriptPubKey = key_to_p2pk_script(pub_key.get_bytes())
elif mode == MiniWalletMode.ADDRESS_OP_TRUE:
self._address = ADDRESS_BCRT1_P2WSH_OP_TRUE
self._scriptPubKey = bytes.fromhex(self._test_node.validateaddress(self._address)['scriptPubKey'])

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