def make_txt(self, fp, addr, wif, privkey, qr_addr=None, qr_wif=None):
# Generate the "simple" text file version, includes private key.
from ubinascii import hexlify as b2a_hex
from descriptor import append_checksum
import ujson
fp.write('Coldcard Generated Paper Wallet\n\n')
fp.write('Deposit address:\n\n %s\n\n' % addr)
fp.write('Private key (WIF=Wallet Import Format):\n\n %s\n\n' % wif)
fp.write('Private key (Hex, 32 bytes):\n\n %s\n\n' % b2a_hex(privkey).decode('ascii'))
fp.write('Bitcoin Core command:\n\n')
# new hotness: output descriptors
desc = ('wpkh(%s)' if self.is_segwit else 'pkh(%s)') % wif
multi = ujson.dumps(dict(timestamp=FEATURE_RELEASE_TIME, desc=append_checksum(desc)))
fp.write(" bitcoin-cli importmulti '[%s]'\n\n" % multi)
fp.write('# OR (more compatible, but slower)\n\n bitcoin-cli importprivkey "%s"\n\n' % wif)
if qr_addr and qr_wif:
fp.write('\n\n--- QR Codes --- (requires UTF-8, unicode, white background)\n\n\n\n')
for idx, (qr, val) in enumerate([(qr_addr, addr), (qr_wif, wif)]):
fp.write(('Private key' if idx else 'Deposit address') + ':\n\n')
w = qr.width()
for y in range(w):
fp.write(' ')
ln = ''.join('\u2588\u2588' if qr.get(x,y) else ' ' for x in range(w))
fp.write(ln)
fp.write('\n')
fp.write('\n %s\n\n\n\n' % val)
fp.write('\n\n\n')
def generate_bitcoin_core_wallet(example_addrs, account_num):
# Generate the data for an RPC command to import keys into Bitcoin Core
# - yields dicts for json purposes
from descriptor import append_checksum
from main import settings
import ustruct
from public_constants import AF_P2WPKH
chain = chains.current_chain()
derive = "84'/{coin_type}'/{account}'".format(account=account_num,
coin_type=chain.b44_cointype)
with stash.SensitiveValues() as sv:
prefix = sv.derive_path(derive)
xpub = chain.serialize_public(prefix)
for i in range(3):
sp = '0/%d' % i
node = sv.derive_path(sp, master=prefix)
a = chain.address(node, AF_P2WPKH)
example_addrs.append(('m/%s/%s' % (derive, sp), a))
xfp = settings.get('xfp')
txt_xfp = xfp2str(xfp).lower()
chain = chains.current_chain()
_, vers, _ = version.get_mpy_version()
for internal in [False, True]:
desc = "wpkh([{fingerprint}/{derive}]{xpub}/{change}/*)".format(
derive=derive.replace("'", "h"),
fingerprint=txt_xfp,
coin_type=chain.b44_cointype,
account=0,
xpub=xpub,
change=(1 if internal else 0))
yield {
'desc': append_checksum(desc),
'range': [0, 1000],
'timestamp': 'now',
'internal': internal,
'keypool': True,
'watchonly': True
}
