def solve():
filename = "test.txt"
key = crypty.generate_key()
correct_hash = hmac(key.decode("hex"),
open(filename, 'r').read()).decode("hex")
print "[*] Key : %s" % (correct_hash.encode("hex"))
guessed_hash = ["\x00"] * 20
for i in xrange(20):
found_byte = b''
max_timetaken = 0
for c in xrange(256):
guessed_hash[i] = chr(c)
timetaken = 0
for j in xrange(1):
t1 = time.time()
insecure_compare("".join(guessed_hash), correct_hash)
t2 = time.time()
timetaken += (t2 - t1) * 1000
avg_timetaken = timetaken / 1.0
if avg_timetaken > max_timetaken:
found_byte = chr(c)
max_timetaken = avg_timetaken
print "Found next byte : %s" % (found_byte.encode("hex"))
guessed_hash[i] = found_byte
print "[+] Found Key : %s" % ("".join(guessed_hash).encode("hex"))
return
def step4_1(msg, hash):
h = E_knows['h']
r = E_knows['r']
p = E_knows['p']
for x in xrange(1, r):
k = getSHA1(format(powmod(h, x, p), 'x'))[0:32]
if hmac(msg, k) == hash:
print "[+] Found the private key. r = %d" % (r)
print "[+] Key: %s" % (k)
gk.append(k)
return True
print "[-] No keys Found."
return False
def solver():
A, b, B, u, hash = srp("")
fp = open("passwords.txt", "r")
passwords = fp.readlines()
for password in passwords:
password = password.strip()
print "[*] Trying Password: '******'" % (password)
x = mpz(int(generate_hash("", password), 16))
S = t_mod(powmod(A, b, N) * powmod(B, u * x, N), N)
K = hash_sha256(str(S))
h = hmac(K, "", hash_function=hash_sha256)
if h == hash:
print "[+] Got it. Password = '******'" % (password)
return
def step4(msg):
k = B_knows['k']
B_knows['msg'] = msg
return hmac(msg, k)
def step_8(hash):
if hmac(Server['K'], Server['salt'], hash_function=hash_sha256) == hash:
return "OK"
else:
return "NOT OK"
def step_7():
return hmac(Client['K'], Client['salt'], hash_function=hash_sha256)