def derive_openssl(key, salt):
key = key[0:-16]
key_and_iv = b('')
prev = b('')
while len(key_and_iv) < 32:
prev = MD5.new(prev + key + salt).digest() # ?
key_and_iv += prev
return key_and_iv[0:16], key_and_iv[16:]
def get_santy_string(base64_encoded_string):
salted_prefix = b('Salted__')
zero_init_vector = b('\x00') * 16
decoded_data = b64decode(base64_encoded_string)
if decoded_data.startswith(salted_prefix):
return SaltyString(salt=decoded_data[8:16], data=decoded_data[16:])
return SaltyString(salt=zero_init_vector, data=decoded_data)
def derive_openssl(key, salt):
key = key[0:-16]
key_and_iv = b('')
prev = b('')
while len(key_and_iv) < 32:
prev = MD5.new(prev + key + salt).digest() # ?
key_and_iv += prev
return key_and_iv[0:16], key_and_iv[16:]
def get_santy_string(base64_encoded_string):
salted_prefix = b('Salted__')
zero_init_vector = b('\x00') * 16
decoded_data = b64decode(base64_encoded_string)
if decoded_data.startswith(salted_prefix):
return SaltyString(salt=decoded_data[8:16], data=decoded_data[16:])
return SaltyString(salt=zero_init_vector, data=decoded_data)
def derive_pbkdf2(password, salt, iterations):
key_and_iv = pbkdf2_bin(b(password), salt, iterations=iterations,
keylen=32)
return key_and_iv[0:16], key_and_iv[16:]
def derive_pbkdf2(password, salt, iterations):
key_and_iv = pbkdf2_bin(b(password),
salt,
iterations=iterations,
keylen=32)
return key_and_iv[0:16], key_and_iv[16:]