Code:
import binascii, hashlib, base58, sys, ecdsa, codecs
arq1 = open('output-uncompublickeys.txt', 'a')
arq2 = open('output-compublickeys.txt', 'a')
def uncom(prky):
zk = ecdsa.SigningKey.from_string(prky.decode('hex'), curve=ecdsa.SECP256k1)
zk_verify = zk.verifying_key
z_public_key = ('\04' + zk.verifying_key.to_string()).encode('hex')
arq1.write("%s \n" % z_public_key)
def com(prky):
pvby = codecs.decode (prky, 'hex')
#Generates the public key
key = ecdsa.SigningKey.from_string (pvby, curve=ecdsa.SECP256k1).verifying_key
kbs = key.to_string()
kh = codecs.encode(kbs, 'hex')
if(ord(bytearray.fromhex(kh[-2:])) % 2 == 0):
#If the last byte of Y is Even, add '02'
pkc = '02' + kh[0:64]
arq2.write("%s \n" % pkc)
else:
#If the last byte of Y is Odd, add '03'
pkc = '03' + kh[0:64]
arq2.write("%s \n" % pkc)
with open("input-privatekeyslist.txt") as file:
for line in file:
prky = str.strip(line)
uncom(prky)
com(prky)
If you receive error, please post here and I will help.
I ran a test on 100,000 private keys and it worked. If you only want uncom or com, you can delete or comment out the one you do not want.