mcdallas/cryptotools

from cryptotools.BTC import Xprv

>>> m = Xprv.from_mnemonic('impulse prize erode winner pupil fun off addict ...')
>>> m.encode()
'xprv9s21ZrQH143K38bNJiHY54kkjio8o6aw3bRjCbzi8KgRxNy98avUribz1wk85ToSUV2VwVuc73NJWc2YGwpMtqz7bBFUh9Q77RtJeuh2zvy'

>>> m/44/0/0/0
Xprv(path=m/44/0/0/0, key=L1WKXyMwKnp8wPwAtjwiKWunACY5RSUXAzmS6jDRRHcHnDbeRiKu)

>>> m/0./123/5.  # Use floats for hardened path, alternative is // e.g m//0/123//5
Xprv(path=m/0h/123/5h, key=L3qskbdzgNu4kwjx2QU63q59khpEHVaSbqd2Pc268Jngiha6mbfQ)

>>> M = m.to_xpub()

>>> (m/123/456).to_xpub() == M/123/456
True

>>> (m/44./0./0./0/0).address('P2PKH')  # bip44
'1BTYXdyrBh1yRCDpqyDhoQG896bnzqtaPz'

>>> (m/84./0./0./0/0).address('P2WPKH')  # bip84
'bc1qjnx8cq32z2t72tsmuwql3wz22lywlpcm3w52lk'

from cryptotools.BTC.HD import check, WORDS

phrase = "{x} decrease enjoy credit fold prepare school midnight flower wrong false already"

for word in WORDS:
    mnemonic = phrase.format(x=word)
    if check(mnemonic):
        print(mnemonic)

import secrets
from cryptotools.ECDSA.secp256k1 import generate_keypair, Message

private, public = generate_keypair()

>>> message = Message(secrets.token_bytes(32))
>>> sig1 = message.sign(private)          # ECDSA
>>> sig2 = message.sign_schnorr(private)  # Schnorr
>>> message.verify(sig1, public)
True
>>> message.verify(sig2, public)
True

from cryptotools.BTC import Transaction

tx = Transaction.get('454e575aa1ed4427985a9732d753b37dc711675eb7c977637b1eea7f600ed214')

>>> tx
Transaction(inputs=1, outputs=2)

>>> tx.outputs
[Output(type=P2SH, value=0.0266 BTC),
 Output(type=P2WSH, value=0.00468 BTC)]

>>> tx.verify()  # this runs the bitcoin script
True

import os
os.environ['CRYPTOTOOLS_NETWORK'] = 'test'  # sets network to testnet (before library import)

from cryptotools.BTC import PrivateKey, send

key = PrivateKey.from_hex('mysupersecretkey')

>>> send(source='n4SbPWR6EmQMsWaQVYYFXiJgjweGKE4XnQ', to={'n2NGrooSecJaiD6ssp4YqFoj9eZ7GrCJ66': 0.46}, fee=0.01, private=key)
'907b92969cb3a16ddb45591bf2530f177b7f10cef4e62c331596a84f66c3b8c3'  # txid

import os
os.environ['CRYPTOTOOLS_NETWORK'] = 'test'

from cryptotools.BTC import PrivateKey, Address

private = PrivateKey.from_hex('mysupersecretkey')
address = Address('n2NGrooSecJaiD6ssp4YqFoj9eZ7GrCJ66')

>>> address.balance()
0.55

>>> send_to = {'n4SbPWR6EmQMsWaQVYYFXiJgjweGKE4XnQ': 0.1, 'n2NGrooSecJaiD6ssp4YqFoj9eZ7GrCJ66': 0.4}
>>> tx = address.send(to=send_to, fee=0.05, private=private)

>>> tx
Transaction(inputs=1, outputs=2)

>>> tx.inputs[0].is_signed()
True

>>> tx.verify()  # Make sure transaction is valid before broadcasting
True

>>> tx.broadcast()
'Transaction Submitted'

from cryptotools.BTC import generate_keypair, push, script_to_address, OP
private, public = generate_keypair()

>>> private.hex()
'de4f177274d29f88a5805333e10525f5dd41634455dfadc8849b977802481ccd'

>>> private.wif(compressed=False)
'5KWCAYLo35uZ9ibPTzTUDXESTE6ne8p1eXviYMHwaoS4tpvYCAp'

>>> public.hex()
'047e30fd478b44869850352daef8f5f7a7b5233044018d465431afdc0b436c973e8df1244189d25ae73d90c90cc0f998eb9784adecaecc46e8c536d7d6845fa26e'

>>> public.to_address('P2PKH')
'19dFXDxiD4KrUTNFfcgeekFpQmUC553GzW'

# Simple <key> <OP_CHECKSIG> script
>>> script = push(public.encode(compressed=True)) + OP.CHECKSIG.byte
>>> script_to_address(script, 'P2WSH')
'bc1q8yh8l8ft3220q328hlapqhflpzy6xvkq6u36mctk8gq5pyxm3rwqv5h5dg'

# nested P2WSH into P2SH -- use with caution
>>> script_to_address(script, 'P2WSH-P2SH')
'34eBzenHJEdk5PK9ojuuBZvCRtNhvvysYZ'

from cryptotools.ECDSA.secp256k1 import CURVE, PrivateKey
private = PrivateKey.random()

>>> private.int()
8034465994996476238286561766373949549982328752707977290709076444881813294372

>>> public = private.to_public()
>>> public
PublicKey(102868560361119050321154887315228169307787313299675114268359376451780341556078, 83001804479408277471207716276761041184203185393579361784723900699449806360826)

>>> public.point in CURVE
True

>>> public.to_address('P2WPKH')
'bc1qh2egksgfejqpktc3kkdtuqqrukrpzzp9lr0phn'