Iteración 1

iteracion1.py

# Copyright 2020 Carlos Castro Martos
#
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# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# THE SOFTWARE.

from ecdsa import SigningKey
from ecdsa import SECP256k1
import hashlib
from base58 import b58encode

def gen_keypair():
    priv = SigningKey.generate(curve=SECP256k1)
    pub = priv.get_verifying_key()
    return priv, pub

def get_keypair():
    priv = SigningKey.generate(curve=SECP256k1)
    print("privk:", priv.to_string().hex(), len(priv.to_string()))
    pub = priv.get_verifying_key().to_string()
    print("step1:", pub.hex(), len(pub))
    stp2 = hashlib.sha256(pub).digest()
    print("step2:", stp2.hex(), len(stp2))
    rpub =  hashlib.new('ripemd160', stp2).digest()
    print("step3:", rpub.hex(), len(rpub))
    adr = bytearray(rpub)
    # testnet adr.insert(0, 111)
    adr.insert(0,00)
    print("step4:", adr.hex(), len(adr))
    stp5 = hashlib.sha256(adr).digest()
    print("step5:", stp5.hex(), len(stp5))
    stp6 = hashlib.sha256(stp5).digest()
    print("step6:", stp6.hex(), len(stp6))

    chksum = stp6[0:4]
    print("chsum:", chksum.hex(), len(chksum))
    adr.extend(chksum)
    print("step8:", adr.hex(), len(adr))
    myadr = b58encode(bytes(adr))
    print("myadr:",myadr, len(myadr))
    
if __name__ == "__main__":
    get_keypair()