In feistel cipher , does it matter that number of rounds be 16 ? is using 16 rounds will give the best result ? Or using any number of rounds is the same?
in cryptography and network security by william stallings we have : "The essence of the Feistel cipher is that a single round
offers inadequate security but that multiple rounds offer increasing security.
A typical size is 16 rounds."
a typical is 16 but what's the efficient number ?