Network Address Translation or NAT is a brilliant scheme to preserve IP addresses. Organizations are often assigned a limited number of public IP addresses. It would be extremely expensive to convert all private IP addresses to public addresses for outside communication. NAT offers a brilliant solution to this problem. NAT allows 3 different ways of …
Hash Message Authentication Code is a standard that specifies an algorithm for an application to authenticate both source of a message and its integrity without the use of any additional mechanisms. Message authentication is achieved by a message authentication code (MAC) and MAC based on hash functions are called HMACs. The sender and receiver will …