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