def checksum_encode(addr_str):
keccak = sha3.keccak_256()
out = ''
addr = addr_str.lower().replace('0x', '')
keccak.update(addr.encode('ascii'))
hash_addr = keccak.hexdigest()
for i, c in enumerate(addr):
if int(hash_addr[i], 16) >= 8:
out += c.upper()
else:
out += c
return '0x' + out
def generate_pub_priv_keypair():
# Thanks https://github.com/vkobel/ethereum-generate-wallet/blob/master/LICENSE.md
from ecdsa import SigningKey, SECP256k1
import sha3
def checksum_encode(addr_str):
keccak = sha3.keccak_256()
out = ''
addr = addr_str.lower().replace('0x', '')
keccak.update(addr.encode('ascii'))
hash_addr = keccak.hexdigest()
for i, c in enumerate(addr):
if int(hash_addr[i], 16) >= 8:
out += c.upper()
else:
out += c
return '0x' + out
keccak = sha3.keccak_256()
priv = SigningKey.generate(curve=SECP256k1)
pub = priv.get_verifying_key().to_string()
keccak.update(pub)
address = keccak.hexdigest()[24:]
def test(addrstr):
assert (addrstr == checksum_encode(addrstr))
test('0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed')
test('0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359')
test('0xdbF03B407c01E7cD3CBea99509d93f8DDDC8C6FB')
test('0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDb')
test('0x7aA3a964CC5B0a76550F549FC30923e5c14EDA84')
# print("Private key:", priv.to_string().hex())
# print("Public key: ", pub.hex())
# print("Address: ", checksum_encode(address))
# return priv key, pub key, address
return priv.to_string().hex(), pub.hex(), checksum_encode(address)
