seg/trabalho2/localtoken.py

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2023-09-11 20:30:47 +00:00
from hashlib import sha256
import time
2023-09-12 14:21:31 +00:00
# token = hashed password + hashed salt
def generate_token(token):
time = get_timestamp()
token = sha256((token + time).encode('utf-8')).hexdigest()
return token
# password = hashed seed password
# salt = hashed salt
def get_salted_password(password, salt):
return sha256((password + salt).encode('utf-8')).hexdigest()
def validate_token(salted_password, token, n=5):
time = get_timestamp()
tokens = []
for i in range(n):
last = tokens[-1] if len(tokens) > 0 else salted_password
tokens.append(generate_token(last))
if token[:8] == tokens[-1][:8]:
return True, i
return False, -1
def get_timestamp():
return time.strftime('%d%m%Y%H%M')