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Pure python EC

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This removes the dependency on OpenSSL for the interaction tests, by providing a pure-Python
toy implementation of secp256k1.
This commit is contained in:
Pieter Wuille
2019-04-15 16:49:18 -07:00
parent 598323911e
commit 8c7b9324ca
5 changed files with 332 additions and 213 deletions
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12
test/functional/feature_block.py
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@@ -14,7 +14,7 @@ from test_framework.blocktools import (
get_legacy_sigopcount_block,
MAX_BLOCK_SIGOPS,
)
from test_framework.key import CECKey
from test_framework.key import ECKey
from test_framework.messages import (
CBlock,
COIN,
@@ -86,9 +86,9 @@ class FullBlockTest(BitcoinTestFramework):
self.bootstrap_p2p() # Add one p2p connection to the node
self.block_heights = {}
self.coinbase_key = CECKey()
self.coinbase_key.set_secretbytes(b"horsebattery")
self.coinbase_pubkey = self.coinbase_key.get_pubkey()
self.coinbase_key = ECKey()
self.coinbase_key.generate()
self.coinbase_pubkey = self.coinbase_key.get_pubkey().get_bytes()
self.tip = None
self.blocks = {}
self.genesis_hash = int(self.nodes[0].getbestblockhash(), 16)
@@ -528,7 +528,7 @@ class FullBlockTest(BitcoinTestFramework):
tx.vin.append(CTxIn(COutPoint(b39.vtx[i].sha256, 0), b''))
# Note: must pass the redeem_script (not p2sh_script) to the signature hash function
(sighash, err) = SignatureHash(redeem_script, tx, 1, SIGHASH_ALL)
sig = self.coinbase_key.sign(sighash) + bytes(bytearray([SIGHASH_ALL]))
sig = self.coinbase_key.sign_ecdsa(sighash) + bytes(bytearray([SIGHASH_ALL]))
scriptSig = CScript([sig, redeem_script])
tx.vin[1].scriptSig = scriptSig
@@ -1284,7 +1284,7 @@ class FullBlockTest(BitcoinTestFramework):
tx.vin[0].scriptSig = CScript()
return
(sighash, err) = SignatureHash(spend_tx.vout[0].scriptPubKey, tx, 0, SIGHASH_ALL)
tx.vin[0].scriptSig = CScript([self.coinbase_key.sign(sighash) + bytes(bytearray([SIGHASH_ALL]))])
tx.vin[0].scriptSig = CScript([self.coinbase_key.sign_ecdsa(sighash) + bytes(bytearray([SIGHASH_ALL]))])
def create_and_sign_transaction(self, spend_tx, value, script=CScript([OP_TRUE])):
tx = self.create_tx(spend_tx, 0, value, script)