def T(keydata: str, compressed: str, uncompressed: str) -> None:
k = CBitcoinKey.from_secret_bytes(x(keydata))
k_u = CBitcoinKey.from_secret_bytes(x(keydata), False)
self.assertTrue(k.is_compressed())
self.assertEqual(k.pub, x(compressed))
k2 = CBitcoinKey(str(k))
self.assertTrue(k2.is_compressed())
self.assertEqual(k, k2)
k = k.to_uncompressed()
self.assertEqual(k, k_u)
self.assertEqual(len(k), 32)
self.assertFalse(k.is_compressed())
self.assertEqual(k.pub, x(uncompressed))
k2 = CBitcoinKey(str(k))
self.assertFalse(k2.is_compressed())
self.assertEqual(k, k2)
k = k.to_compressed()
self.assertEqual(len(k), 33)
self.assertEqual(k[-1], 1)
self.assertTrue(k.is_compressed())
self.assertEqual(k.pub, x(compressed))
def test(self) -> None:
# Test Vectors for RFC 6979 ECDSA, secp256k1, SHA-256
# (private key, message, expected k, expected signature)
test_vectors = [
(0x1, "Satoshi Nakamoto", 0x8F8A276C19F4149656B280621E358CCE24F5F52542772691EE69063B74F15D15, "934b1ea10a4b3c1757e2b0c017d0b6143ce3c9a7e6a4a49860d7a6ab210ee3d82442ce9d2b916064108014783e923ec36b49743e2ffa1c4496f01a512aafd9e5"),
(0x1, "All those moments will be lost in time, like tears in rain. Time to die...", 0x38AA22D72376B4DBC472E06C3BA403EE0A394DA63FC58D88686C611ABA98D6B3, "8600dbd41e348fe5c9465ab92d23e3db8b98b873beecd930736488696438cb6b547fe64427496db33bf66019dacbf0039c04199abb0122918601db38a72cfc21"),
(0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364140, "Satoshi Nakamoto", 0x33A19B60E25FB6F4435AF53A3D42D493644827367E6453928554F43E49AA6F90, "fd567d121db66e382991534ada77a6bd3106f0a1098c231e47993447cd6af2d06b39cd0eb1bc8603e159ef5c20a5c8ad685a45b06ce9bebed3f153d10d93bed5"),
(0xf8b8af8ce3c7cca5e300d33939540c10d45ce001b8f252bfbc57ba0342904181, "Alan Turing", 0x525A82B70E67874398067543FD84C83D30C175FDC45FDEEE082FE13B1D7CFDF1, "7063ae83e7f62bbb171798131b4a0564b956930092b33b07b395615d9ec7e15c58dfcc1e00a35e1572f366ffe34ba0fc47db1e7189759b9fb233c5b05ab388ea"),
(0xe91671c46231f833a6406ccbea0e3e392c76c167bac1cb013f6f1013980455c2, "There is a computer disease that anybody who works with computers knows about. It's a very serious disease and it interferes completely with the work. The trouble with computers is that you 'play' with them!", 0x1F4B84C23A86A221D233F2521BE018D9318639D5B8BBD6374A8A59232D16AD3D, "b552edd27580141f3b2a5463048cb7cd3e047b97c9f98076c32dbdf85a68718b279fa72dd19bfae05577e06c7c0c1900c371fcd5893f7e1d56a37d30174671f6")
]
for vector in test_vectors:
secret = CBitcoinKey.from_secret_bytes(x('{:064x}'.format(vector[0])))
encoded_sig = secret.sign(hashlib.sha256(vector[1].encode('utf8')).digest())
assert(encoded_sig[0] == 0x30)
assert(encoded_sig[1] == len(encoded_sig)-2)
assert(encoded_sig[2] == 0x02)
rlen = encoded_sig[3]
rpos = 4
assert(rlen in (32, 33))
if rlen == 33:
assert(encoded_sig[rpos] == 0)
rpos += 1
rlen -= 1
rval = encoded_sig[rpos:rpos+rlen]
spos = rpos+rlen
assert(encoded_sig[spos] == 0x02)
spos += 1
slen = encoded_sig[spos]
assert(slen in (32, 33))
spos += 1
if slen == 33:
assert(encoded_sig[spos] == 0)
spos += 1
slen -= 1
sval = encoded_sig[spos:spos+slen]
sig = b2x(rval + sval)
assert(str(sig) == vector[3])
import hashlib
from bitcointx import select_chain_params
from bitcointx.core import (b2x, lx, COutPoint, CMutableTxOut, CMutableTxIn,
CMutableTransaction, CoreCoinParams)
from bitcointx.core.script import CScript, SignatureHash, SIGHASH_ALL
from bitcointx.core.scripteval import VerifyScript
from bitcointx.wallet import CBitcoinAddress, P2PKHBitcoinAddress, CBitcoinKey
select_chain_params('bitcoin')
COIN = CoreCoinParams.COIN
# Create the (in)famous correct brainwallet secret key.
h = hashlib.sha256(b'correct horse battery staple').digest()
seckey = CBitcoinKey.from_secret_bytes(h)
# Same as the txid:vout the createrawtransaction RPC call requires
#
# lx() takes *little-endian* hex and converts it to bytes; in Bitcoin
# transaction hashes are shown little-endian rather than the usual big-endian.
# There's also a corresponding x() convenience function that takes big-endian
# hex and converts it to bytes.
txid = lx('7e195aa3de827814f172c362fcf838d92ba10e3f9fdd9c3ecaf79522b311b22d')
vout = 0
# Create the txin structure, which includes the outpoint. The scriptSig
# defaults to being empty.
txin = CMutableTxIn(COutPoint(txid, vout))
# We also need the scriptPubKey of the output we're spending because
