def step_5():
x = mpz(int(generate_hash(Client['salt'], P), 16))
S = powmod((Client['B'] - (k * powmod(g, x, N))),
Client['a'] + (Client['u'] * x), N)
K = hash_sha256(str(S))
Client['K'] = K
return
def step_5(_S=-1):
x = mpz(int(generate_hash(Client['salt'], P), 16))
if _S == -1:
S = powmod(Client['B'], Client['a'] + (Client['u'] * x), N)
else:
S = _S
K = hash_sha256(str(S))
Client['K'] = K
return
def step_5(passwd=P, _S=-1):
x = mpz(int(generate_hash(Client['salt'], passwd), 16))
if _S == -1:
S = powmod((Client['B'] - (k * powmod(g, x, N))),
Client['a'] + (Client['u'] * x), N)
else:
S = _S
K = hash_sha256(str(S))
Client['K'] = K
return
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 step_6():
S = powmod(Server['A'] * powmod(Server['v'], Server['u'], N), Server['b'],
N)
K = hash_sha256(str(S))
Server['K'] = K
return
def generate_hash(salt, data):
return hash_sha256(salt + data)
