Verifying Hashed Cookies

Question:

Start Quiz:

import hashlib

def hash_str(s):
    return hashlib.md5(s).hexdigest()

def make_secure_val(s):
    return "%s,%s" % (s, hash_str(s))

# -----------------
# User Instructions
# 
# Implement the function check_secure_val, which takes a string of the format 
# s,HASH
# and returns s if hash_str(s) == HASH, otherwise None 

def check_secure_val(h):
    ###Your code here

User's Answer:

(Note: The answer done by the user is not guaranteed to be correct)

studentMain.py

import hashlib

def hash_str(s):
    return hashlib.md5(s).hexdigest()

def make_secure_val(s):
    return "%s,%s" % (s, hash_str(s))

# -----------------
# User Instructions
# 
# Implement the function check_secure_val, which takes a string of the format 
# s,HASH
# and returns s if hash_str(s) == HASH, otherwise None 

def check_secure_val(h):
    test = h.split(",")
    if hash_str(test[0])==test[1]:
        return test[0]

print check_secure_val("abc,23")

Solution: