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pythonpython-3.xrandomhashlib

Print () result is not output, can't find error


This script generates a hash, but somewhere it did not correctly write something in the function.

from bitcoin import *
import os
import hashlib
import base58
 

while True:
    priv =  random_key()
    pubkey = privtopub(priv)
    compress_pubkey = False
    
 
    if (compress_pubkey):
        if (ord(pubkey[-2:].decode('hex')) % 2 == 0):
            pubkey_compressed = '02'
        else:
            pubkey_compressed = '03'
        pubkey_compressed += pubkey[2:66]
        hex_str = bytearray.fromhex(pubkey_compressed)
    else:
        hex_str = bytearray.fromhex(pubkey)
 
key_hash = hash160(hex_str)

def hash160(hex_str):
    sha = hashlib.sha256()
    rip = hashlib.new('ripemd160')
    sha.update(hex_str)
    rip.update( sha.digest() )
    print ( "key_hash = \t" + rip.hexdigest() )
    return rip.hexdigest()  # .hexdigest() is hex ASCII

I checked the script to work. Did print (pubkey). The public keys are displayed as a result, but I don't need to get key_hash. Unfortunately when I do print ("key_hash = \ t" + rip.hexdigest ())

The result is not executed! I don't know programming. Help fix the code!


Solution

  • After code rearrangement:

    from bitcoin import *
    import os
    import hashlib
    import base58
    
    def hash160(hex_str):
        sha = hashlib.sha256()
        rip = hashlib.new('ripemd160')
        sha.update(hex_str)
        rip.update(sha.digest())
        print("key_hash = \t" + rip.hexdigest())
        return rip.hexdigest()  # .hexdigest() is hex ASCII
    
    while True:
        priv = random_key()
        pubkey = privtopub(priv)
        compress_pubkey = False
    
        if (compress_pubkey):
            if (ord(pubkey[-2:].decode('hex')) % 2 == 0):
                pubkey_compressed = '02'
            else:
                pubkey_compressed = '03'
            pubkey_compressed += pubkey[2:66]
            hex_str = bytearray.fromhex(pubkey_compressed)
        else:
            hex_str = bytearray.fromhex(pubkey)
    
        key_hash = hash160(hex_str)
    

    Output:

    key_hash =  b0ac6f690633331af487f594dd3c42c6c67ce085
    key_hash =  de735b3046545f63c8cb2f7d44b7f24a8b769ad7
    key_hash =  49b0ae2b541832797680b977ca9e374d1a621787
    key_hash =  ea3e1d9762331e791412e96b2a67f418cfd6ca2c
    key_hash =  e5ff3affd4ba7eb2bb343548f587bde9dbdace6b
    key_hash =  b1a952405516abe494e7e32610a3eaf85d7914f2
    key_hash =  a0050e1f18b2d0738c458e237a447bd8f2810fec
    key_hash =  23eeca93355ba511bdf28c475b5e62d2da64546b
    key_hash =  cc5904bae39ee51b75097c95ad0307a21ecef1bc
    ... And So On
    

    Note that there is an infinity loop (while True), consider replacing with a specific number of iterations.