Programme de minage pour l'école d'été de cybersécurité, cours Bitcoin

mine.md

#!/usr/bin/env python3

import random

def asciisum(s):
    result = 0
    for c in s:
        result += ord(c)
    return result

def find(seed):
    found = False
    while not found:
        nonce = gen.randint(0, 1000)
        possible = asciisum(str(asciisum("%s%s" % (seed, str(nonce)))))
        if possible % 3 == 0 and possible % 5 ==0:
            print("Found: nonce %s, hash %s" % (nonce, possible))
            found = True
    return possible

gen = random.Random()
# Current state of the chain
next = "42"
for transaction in ("AD5", "BC9", "BD7", "CA3"):
    next = find(transaction + str(next))