Python encoding.public_pair_to_sec函数代码示例

def main():
    parser = argparse.ArgumentParser(description="Bitcoin utilities. WARNING: obsolete. Use ku instead.")

    parser.add_argument('-a', "--address", help='show as Bitcoin address', action='store_true')
    parser.add_argument('-1', "--hash160", help='show as hash 160', action='store_true')
    parser.add_argument('-v', "--verbose", help='dump all information available', action='store_true')
    parser.add_argument('-w', "--wif", help='show as Bitcoin WIF', action='store_true')
    parser.add_argument('-n', "--uncompressed", help='show in uncompressed form', action='store_true')
    parser.add_argument('item', help='a WIF, secret exponent, X/Y public pair, SEC (as hex), hash160 (as hex), Bitcoin address', nargs="+")
    args = parser.parse_args()

    for c in args.item:
        # figure out what it is:
        #  - secret exponent
        #  - WIF
        #  - X/Y public key (base 10 or hex)
        #  - sec
        #  - hash160
        #  - Bitcoin address
        secret_exponent = parse_as_private_key(c)
        if secret_exponent:
            public_pair = ecdsa.public_pair_for_secret_exponent(secp256k1.generator_secp256k1, secret_exponent)
            print("secret exponent: %d" % secret_exponent)
            print("  hex:           %x" % secret_exponent)
            print("WIF:             %s" % encoding.secret_exponent_to_wif(secret_exponent, compressed=True))
            print("  uncompressed:  %s" % encoding.secret_exponent_to_wif(secret_exponent, compressed=False))
        else:
            public_pair = parse_as_public_pair(c)
        if public_pair:
            bitcoin_address_uncompressed = encoding.public_pair_to_bitcoin_address(public_pair, compressed=False)
            bitcoin_address_compressed = encoding.public_pair_to_bitcoin_address(public_pair, compressed=True)
            print("public pair x:   %d" % public_pair[0])
            print("public pair y:   %d" % public_pair[1])
            print("  x as hex:      %x" % public_pair[0])
            print("  y as hex:      %x" % public_pair[1])
            print("y parity:        %s" % "odd" if (public_pair[1] & 1) else "even")
            print("key pair as sec: %s" % b2h(encoding.public_pair_to_sec(public_pair, compressed=True)))
            s = b2h(encoding.public_pair_to_sec(public_pair, compressed=False))
            print("  uncompressed:  %s\\\n                   %s" % (s[:66], s[66:]))
            hash160 = encoding.public_pair_to_hash160_sec(public_pair, compressed=True)
            hash160_unc = encoding.public_pair_to_hash160_sec(public_pair, compressed=False)
            myeccpoint = encoding.public_pair_to_sec(public_pair, compressed=True)
            myhash     = encoding.ripemd160( myeccpoint ).digest(  )
            print("BTSX PubKey:     %s" % BTS_ADDRESS_PREFIX + encoding.b2a_base58(myeccpoint + myhash[ :4 ]))
        else:
            hash160 = parse_as_address(c)
            hash160_unc = None
        if not hash160:
            sys.stderr.write("can't decode input %s\n" % c)
            sys.exit(1)
        print("hash160:         %s" % b2h(hash160))
        if hash160_unc:
            print("  uncompressed:  %s" % b2h(hash160_unc))
        print("Bitcoin address: %s" % encoding.hash160_sec_to_bitcoin_address(hash160))
        if hash160_unc:
            print("  uncompressed:  %s" % encoding.hash160_sec_to_bitcoin_address(hash160_unc))

    def test_build_spends(self):
        # first, here is the tx database
        TX_DB = {}

        # create a coinbase Tx where we know the public & private key

        exponent = wif_to_secret_exponent("5JMys7YfK72cRVTrbwkq5paxU7vgkMypB55KyXEtN5uSnjV7K8Y")
        compressed = False

        public_key_sec = public_pair_to_sec(
            ecdsa.public_pair_for_secret_exponent(ecdsa.generator_secp256k1, exponent), compressed=compressed
        )

        the_coinbase_tx = Tx.coinbase_tx(public_key_sec, int(50 * 1e8), COINBASE_BYTES_FROM_80971)
        TX_DB[the_coinbase_tx.hash()] = the_coinbase_tx

        # now create a Tx that spends the coinbase

        compressed = False

        exponent_2 = int("137f3276686959c82b454eea6eefc9ab1b9e45bd4636fb9320262e114e321da1", 16)
        bitcoin_address_2 = public_pair_to_bitcoin_address(
            ecdsa.public_pair_for_secret_exponent(ecdsa.generator_secp256k1, exponent_2), compressed=compressed
        )

        self.assertEqual("12WivmEn8AUth6x6U8HuJuXHaJzDw3gHNZ", bitcoin_address_2)

        coins_from = [(the_coinbase_tx.hash(), 0, the_coinbase_tx.txs_out[0])]
        coins_to = [(int(50 * 1e8), bitcoin_address_2)]
        unsigned_coinbase_spend_tx = standard_tx(coins_from, coins_to)
        solver = build_hash160_lookup([exponent])

        coinbase_spend_tx = unsigned_coinbase_spend_tx.sign(solver)

        # now check that it validates
        self.assertEqual(coinbase_spend_tx.bad_signature_count(), 0)

        TX_DB[coinbase_spend_tx.hash()] = coinbase_spend_tx

        ## now try to respend from priv_key_2 to priv_key_3

        compressed = True

        exponent_3 = int("f8d39b8ecd0e1b6fee5a340519f239097569d7a403a50bb14fb2f04eff8db0ff", 16)
        bitcoin_address_3 = public_pair_to_bitcoin_address(
            ecdsa.public_pair_for_secret_exponent(ecdsa.generator_secp256k1, exponent_3), compressed=compressed
        )

        self.assertEqual("13zzEHPCH2WUZJzANymow3ZrxcZ8iFBrY5", bitcoin_address_3)

        coins_from = [(coinbase_spend_tx.hash(), 0, coinbase_spend_tx.txs_out[0])]
        unsigned_spend_tx = standard_tx(coins_from, [(int(50 * 1e8), bitcoin_address_3)])
        solver.update(build_hash160_lookup([exponent_2]))
        spend_tx = unsigned_spend_tx.sign(solver)

        # now check that it validates
        self.assertEqual(spend_tx.bad_signature_count(), 0)

def private_key_to_public_key (private_key_wif):
    try:
        secret_exponent, compressed = wif_to_tuple_of_secret_exponent_compressed(private_key_wif, [wif_prefix(is_test=config.TESTNET)])
    except EncodingError:
        raise exceptions.AltcoinSupportError('pycoin: unsupported WIF prefix')
    public_pair = public_pair_for_secret_exponent(generator_secp256k1, secret_exponent)
    public_key = public_pair_to_sec(public_pair, compressed=compressed)
    public_key_hex = binascii.hexlify(public_key).decode('utf-8')
    return public_key_hex

 def sec(self, use_uncompressed=None):
     """
     Return the SEC representation of this key, if available.
     If use_uncompressed is not set, the preferred representation is returned.
     """
     public_pair = self.public_pair()
     if public_pair is None:
         return None
     return public_pair_to_sec(public_pair, compressed=not self._use_uncompressed(use_uncompressed))

 def do_test(as_public_pair, as_sec, is_compressed, as_hash160_sec, as_bitcoin_address):
     self.assertEqual(encoding.sec_to_public_pair(as_sec), as_public_pair)
     self.assertEqual(encoding.public_pair_to_sec(as_public_pair, compressed=is_compressed), as_sec)
     self.assertEqual(encoding.is_sec_compressed(as_sec), is_compressed)
     self.assertEqual(encoding.public_pair_to_hash160_sec(as_public_pair, compressed=is_compressed),
                      as_hash160_sec)
     self.assertEqual(encoding.hash160_sec_to_bitcoin_address(as_hash160_sec), as_bitcoin_address)
     self.assertEqual(encoding.public_pair_to_bitcoin_address(as_public_pair, compressed=is_compressed), as_bitcoin_address)
     self.assertTrue(encoding.is_valid_bitcoin_address(as_bitcoin_address))
     bad_address = as_bitcoin_address[:17] + chr(ord(as_bitcoin_address[17]) + 1) + as_bitcoin_address[18:]
     self.assertFalse(encoding.is_valid_bitcoin_address(bad_address))

 def dumppubkey(self, address):
     if is_valid_bitcoin_address(address)==False:
         return Exception("Invalid address %s" % address)
     try:
         secret_exponent = self.getsecretexponent(address)
         public_pair = ecdsa.public_pair_for_secret_exponent(ecdsa.generator_secp256k1, secret_exponent)
         pubkey = public_pair_to_sec(public_pair, compressed=True)
         pubkey = b2h(pubkey)
     except:
         raise Exception("Unknown address: %s" % address)
     return pubkey

        def do_test(exp_hex, wif, c_wif, public_pair_sec, c_public_pair_sec, address_b58, c_address_b58):
            secret_exponent = int(exp_hex, 16)
            sec = h2b(public_pair_sec)
            c_sec = h2b(c_public_pair_sec)

            self.assertEqual(secret_exponent_to_wif(secret_exponent, compressed=False), wif)
            self.assertEqual(secret_exponent_to_wif(secret_exponent, compressed=True), c_wif)

            exponent, compressed = wif_to_tuple_of_secret_exponent_compressed(wif)
            self.assertEqual(exponent, secret_exponent)
            self.assertFalse(compressed)

            exponent, compressed = wif_to_tuple_of_secret_exponent_compressed(c_wif)
            self.assertEqual(exponent, secret_exponent)
            self.assertTrue(compressed)

            public_pair = secret_exponent * secp256k1_generator

            pk_public_pair = sec_to_public_pair(sec)
            compressed = is_sec_compressed(sec)
            self.assertEqual(pk_public_pair, public_pair)
            self.assertFalse(is_sec_compressed(sec))
            self.assertEqual(public_pair_to_sec(pk_public_pair, compressed=False), sec)

            pk_public_pair = sec_to_public_pair(c_sec)
            compressed = is_sec_compressed(c_sec)
            self.assertEqual(pk_public_pair, public_pair)
            self.assertTrue(compressed)
            self.assertEqual(public_pair_to_sec(pk_public_pair, compressed=True), c_sec)

            bca = public_pair_to_bitcoin_address(pk_public_pair, compressed=True)
            self.assertEqual(bca, c_address_b58)

            self.assertEqual(bitcoin_address_to_hash160_sec(c_address_b58),
                             public_pair_to_hash160_sec(pk_public_pair, compressed=True))

            bca = public_pair_to_bitcoin_address(pk_public_pair, compressed=False)
            self.assertEqual(bca, address_b58)

            self.assertEqual(bitcoin_address_to_hash160_sec(address_b58),
                             public_pair_to_hash160_sec(pk_public_pair, compressed=False))

def _report_addresses(irange):
    ms = _get_wallets()
    n = get_n()

    for i in irange:
        try:
            ms_i = [hexlify(public_pair_to_sec(m.subkey(i).public_pair)) 
                    for m in ms]
        except pycoin.wallet.InvalidKeyGeneratedError:
            continue
        info = conf.bitcoind.createmultisig(n, ms_i)
        yield i, info["address"]

        def do_test(exp_hex, wif, c_wif, public_pair_sec, c_public_pair_sec, address_b58, c_address_b58):
            secret_exponent = int(exp_hex, 16)
            sec = binascii.unhexlify(public_pair_sec)
            c_sec = binascii.unhexlify(c_public_pair_sec)

            self.assertEqual(secret_exponent_to_wif(secret_exponent, compressed=False), wif)
            self.assertEqual(secret_exponent_to_wif(secret_exponent, compressed=True), c_wif)

            exponent, compressed = wif_to_tuple_of_secret_exponent_compressed(wif)
            self.assertEqual(exponent, secret_exponent)
            self.assertFalse(compressed)

            exponent, compressed = wif_to_tuple_of_secret_exponent_compressed(c_wif)
            self.assertEqual(exponent, secret_exponent)
            self.assertTrue(compressed)

            public_pair = public_pair_for_secret_exponent(generator_secp256k1, secret_exponent)

            pk_public_pair = public_pair_from_sec(sec)
            compressed = is_sec_compressed(sec)
            self.assertEqual(pk_public_pair, public_pair)
            self.assertFalse(is_sec_compressed(sec))
            self.assertEqual(public_pair_to_sec(pk_public_pair, compressed=False), sec)

            pk_public_pair = public_pair_from_sec(c_sec)
            compressed = is_sec_compressed(c_sec)
            self.assertEqual(pk_public_pair, public_pair)
            self.assertTrue(compressed)
            self.assertEqual(public_pair_to_sec(pk_public_pair, compressed=True), c_sec)

            bca = public_pair_to_bitcoin_address(pk_public_pair, compressed=True)
            self.assertEqual(bca, c_address_b58)

            self.assertEqual(bitcoin_address_to_ripemd160_sha_sec(c_address_b58), public_pair_to_ripemd160_sha_sec(pk_public_pair, compressed=True))

            bca = public_pair_to_bitcoin_address(pk_public_pair, compressed=False)
            self.assertEqual(bca, address_b58)

            self.assertEqual(bitcoin_address_to_ripemd160_sha_sec(address_b58), public_pair_to_ripemd160_sha_sec(pk_public_pair, compressed=False))

    def _calculate_all(self):
        for attr in "_secret_exponent _public_pair _wif_uncompressed _wif_compressed _sec_compressed" \
                " _sec_uncompressed _hash160_compressed _hash160_uncompressed _address_compressed" \
                " _address_uncompressed _netcode".split():
                setattr(self, attr, getattr(self, attr, None))

        if self._hierarchical_wallet:
            if self._hierarchical_wallet.is_private:
                self._secret_exponent = self._hierarchical_wallet.secret_exponent
            else:
                self._public_pair = self._hierarchical_wallet.public_pair
            self._netcode = self._hierarchical_wallet.netcode

        wif_prefix = wif_prefix_for_netcode(self._netcode)

        if self._secret_exponent:
            self._wif_uncompressed = secret_exponent_to_wif(
                self._secret_exponent, compressed=False, wif_prefix=wif_prefix)
            self._wif_compressed = secret_exponent_to_wif(
                self._secret_exponent, compressed=True, wif_prefix=wif_prefix)
            self._public_pair = ecdsa.public_pair_for_secret_exponent(
                ecdsa.generator_secp256k1, self._secret_exponent)

        if self._public_pair:
            self._sec_compressed = public_pair_to_sec(self._public_pair, compressed=True)
            self._sec_uncompressed = public_pair_to_sec(self._public_pair, compressed=False)
            self._hash160_compressed = hash160(self._sec_compressed)
            self._hash160_uncompressed = hash160(self._sec_uncompressed)

        address_prefix = address_prefix_for_netcode(self._netcode)

        if self._hash160_compressed:
            self._address_compressed = hash160_sec_to_bitcoin_address(
                self._hash160_compressed, address_prefix=address_prefix)

        if self._hash160_uncompressed:
            self._address_uncompressed = hash160_sec_to_bitcoin_address(
                self._hash160_uncompressed, address_prefix=address_prefix)

def create_coinbase_tx(parser):
    args = parser.parse_args()
    try:
        if len(args.txinfo) != 1:
            parser.error("coinbase transactions need exactly one output parameter (wif/BTC count)")
        wif, btc_amount = args.txinfo[0].split("/")
        satoshi_amount = btc_to_satoshi(btc_amount)
        secret_exponent, compressed = encoding.wif_to_tuple_of_secret_exponent_compressed(wif)
        public_pair = ecdsa.public_pair_for_secret_exponent(ecdsa.secp256k1.generator_secp256k1, secret_exponent)
        public_key_sec = encoding.public_pair_to_sec(public_pair, compressed=compressed)
        coinbase_tx = Tx.coinbase_tx(public_key_sec, satoshi_amount)
        return coinbase_tx
    except Exception:
        parser.error("coinbase transactions need exactly one output parameter (wif/BTC count)")

def private_key_to_public_key (private_key_wif):
    if config.TESTNET:
        allowable_wif_prefixes = [config.PRIVATEKEY_VERSION_TESTNET]
    else:
        allowable_wif_prefixes = [config.PRIVATEKEY_VERSION_MAINNET]
    try:
        secret_exponent, compressed = wif_to_tuple_of_secret_exponent_compressed(
                private_key_wif, allowable_wif_prefixes=allowable_wif_prefixes)
    except EncodingError:
        raise AltcoinSupportError('pycoin: unsupported WIF prefix')
    public_pair = public_pair_for_secret_exponent(generator_secp256k1, secret_exponent)
    public_key = public_pair_to_sec(public_pair, compressed=compressed)
    public_key_hex = binascii.hexlify(public_key).decode('utf-8')
    return public_key_hex

 def get_auth_data(self, moniker):
     with self.lock:
         coin = self._wallet.make_coin_query({
             'asset': self.get_asset_definition(moniker),
             'spent': False,
         }).get_result()[0]
         pubKey = public_pair_to_sec(coin.address_rec.publicPoint.pair(), compressed=False)
         return {
             'color_set':   clubAsset['color_set'][0],
             'txhash':      coin.txhash,
             'outindex':    coin.outindex,
             'pubkey':      pubKey.encode('hex'),
             'privkey':     coin.address_rec.rawPrivKey,
             'address_rec': coin.address_rec,
         }

    def test_signature_hash(self):
        compressed = False
        exponent_2 = int("137f3276686959c82b454eea6eefc9ab1b9e45bd4636fb9320262e114e321da1", 16)
        bitcoin_address_2 = public_pair_to_bitcoin_address(exponent_2 * secp256k1_generator, compressed=compressed)
        exponent = wif_to_secret_exponent("5JMys7YfK72cRVTrbwkq5paxU7vgkMypB55KyXEtN5uSnjV7K8Y")

        public_key_sec = public_pair_to_sec(exponent * secp256k1_generator, compressed=compressed)

        the_coinbase_tx = Tx.coinbase_tx(public_key_sec, int(50 * 1e8), COINBASE_BYTES_FROM_80971)
        coins_from = [(the_coinbase_tx.hash(), 0, the_coinbase_tx.txs_out[0])]
        coins_to = [(int(50 * 1e8), bitcoin_address_2)]
        unsigned_coinbase_spend_tx = standard_tx(coins_from, coins_to)

        tx_out_script_to_check = the_coinbase_tx.txs_out[0].script
        idx = 0
        actual_hash = unsigned_coinbase_spend_tx.signature_hash(tx_out_script_to_check, idx, hash_type=SIGHASH_ALL)
        self.assertEqual(actual_hash, 29819170155392455064899446505816569230970401928540834591675173488544269166940)

    def test_build_spends(self):
        # create a coinbase Tx where we know the public & private key

        exponent = wif_to_secret_exponent("5JMys7YfK72cRVTrbwkq5paxU7vgkMypB55KyXEtN5uSnjV7K8Y")
        compressed = False

        public_key_sec = public_pair_to_sec(ecdsa.public_pair_for_secret_exponent(ecdsa.generator_secp256k1, exponent), compressed=compressed)

        the_coinbase_tx = Tx.coinbase_tx(public_key_sec, int(50 * 1e8), COINBASE_BYTES_FROM_80971)

        # now create a Tx that spends the coinbase

        compressed = False

        exponent_2 = int("137f3276686959c82b454eea6eefc9ab1b9e45bd4636fb9320262e114e321da1", 16)
        bitcoin_address_2 = public_pair_to_bitcoin_address(
                ecdsa.public_pair_for_secret_exponent(ecdsa.generator_secp256k1, exponent_2),
                compressed=compressed)

        self.assertEqual("12WivmEn8AUth6x6U8HuJuXHaJzDw3gHNZ", bitcoin_address_2)

        TX_DB = dict((tx.hash(), tx) for tx in [the_coinbase_tx])

        coins_from = [(the_coinbase_tx.hash(), 0)]
        coins_to = [(int(50 * 1e8), bitcoin_address_2)]
        coinbase_spend_tx = Tx.standard_tx(coins_from, coins_to, TX_DB, [exponent])
        coinbase_spend_tx.validate(TX_DB)

        ## now try to respend from priv_key_2 to priv_key_3

        compressed = True

        exponent_3 = int("f8d39b8ecd0e1b6fee5a340519f239097569d7a403a50bb14fb2f04eff8db0ff", 16)
        bitcoin_address_3 = public_pair_to_bitcoin_address(
                ecdsa.public_pair_for_secret_exponent(ecdsa.generator_secp256k1, exponent_3),
                compressed=compressed)

        self.assertEqual("13zzEHPCH2WUZJzANymow3ZrxcZ8iFBrY5", bitcoin_address_3)

        TX_DB = dict((tx.hash(), tx) for tx in [coinbase_spend_tx])

        spend_tx = Tx.standard_tx([(coinbase_spend_tx.hash(), 0)], [(int(50 * 1e8), bitcoin_address_3)], TX_DB, [exponent_2])

        spend_tx.validate(TX_DB)