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  1. import ecdsa
  2. import ecdsa.der
  3. import ecdsa.util
  4. import hashlib
  5. import os
  6. import re
  7. import struct
  8.  
  9. b58 = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
  10.  
  11. def base58encode(n):
  12.     result = ''
  13.     while n > 0:
  14.         result = b58[n%58] + result
  15.         n /= 58
  16.     return result
  17.  
  18. def base256decode(s):
  19.     result = 0
  20.     for c in s:
  21.         result = result * 256 + ord(c)
  22.     return result
  23.  
  24. def countLeadingChars(s, ch):
  25.     count = 0
  26.     for c in s:
  27.         if c == ch:
  28.             count += 1
  29.         else:
  30.             break
  31.     return count
  32.  
  33. # https://e...content-available-to-author-only...n.it/wiki/Base58Check_encoding
  34. def base58CheckEncode(version, payload):
  35.     s = chr(version) + payload
  36.     checksum = hashlib.sha256(hashlib.sha256(s).digest()).digest()[0:4]
  37.     result = s + checksum
  38.     leadingZeros = countLeadingChars(result, '\0')
  39.     return '1' * leadingZeros + base58encode(base256decode(result))
  40.  
  41. def privateKeyToWif(key_hex):    
  42.     return base58CheckEncode(0x80, key_hex.decode('hex'))
  43.  
  44. def privateKeyToPublicKey(s):
  45.     sk = ecdsa.SigningKey.from_string(s.decode('hex'), curve=ecdsa.SECP256k1)
  46.     vk = sk.verifying_key
  47.     return ('\04' + sk.verifying_key.to_string()).encode('hex')
  48.  
  49. def pubKeyToAddr(s):
  50.     ripemd160 = hashlib.new('ripemd160')
  51.     ripemd160.update(hashlib.sha256(s.decode('hex')).digest())
  52.     return base58CheckEncode(0, ripemd160.digest())
  53.  
  54. def keyToAddr(s):
  55.     return pubKeyToAddr(privateKeyToPublicKey(s))
  56.  
  57. # Generate a random private key
  58. private_key = os.urandom(32).encode('hex')
  59.  
  60. # You can verify the values on http://b...content-available-to-author-only...t.org/
  61. print "Secret Exponent (Uncompressed) : %s " % private_key 
  62. print "Private Key     : %s " % privateKeyToWif(private_key)
  63. print "Address         : %s " % keyToAddr(private_key)
Runtime error #stdin #stdout #stderr 0.02s 9016KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
stderr 
Traceback (most recent call last):
  File "prog.py", line 1, in <module>
ImportError: No module named ecdsa
https://ideone.com/okAGVy
language:
Python (cpython 2.7.16)
created:
9 years ago
visibility:
public

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