def scripthash_hex(script):
return hash_to_hex_str(sha256(bytes(script)))
def get_bytes(self, n):
while len(self.pool) < n:
self.pool.extend(self.sha)
self.sha = sha256(self.sha)
result, self.pool = self.pool[:n], self.pool[n:]
return result
def scripthash_bytes(script: Script) -> bytes:
return sha256(bytes(script))
def __init__(self, seed):
self.sha = sha256(seed)
self.pool = bytearray()
def scripthash_hex(item):
if isinstance(item, Address):
item = item.to_script_bytes()
return hash_to_hex_str(sha256(bytes(item)))
def _get_unique_identity_id(self, system_id: IdentitySystem, system_data: str) -> bytes:
if system_id == IdentitySystem.OnChain:
return bytes.fromhex(system_data)
return sha256(system_data.encode('utf-8'))
def scripthash_bytes(script: Union[bytes, Script]) -> bytes:
# NOTE(typing) Ignore passing a bytes object into the `bytes` builtin, as it is valid.
return sha256(bytes(script)) # type: ignore
import pytest
import scryptlib.utils
import scryptlib.contract
from scryptlib.types import Int, PubKey, Sig, SigHashPreimage, Ripemd160
import bitcoinx
from bitcoinx import PrivateKey, TxOutput, SigHash, pack_byte, Script, sha256, PublicKey, int_to_be_bytes, hash160, TxInputContext, Tx, TxInput
import ecdsa
from hashlib import sha256 as sha256_hashlib
secret = b'This is a secret message!'
h_secret = sha256(secret)
k = h_secret
secret_wrong = b'This is the wrong secret message!'
h_secret_wrong = sha256(secret_wrong)
k_wrong = h_secret
G = PublicKey.from_hex(
'0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798')
Q = G.multiply(k)
r, _ = Q.to_point()
r = int_to_be_bytes(r)
if r[0] & 0x80:
r0 = pack_byte(0) + r
else:
r0 = r
r_hash = hash160(r0)