Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. A message authentication code (MAC), or tag, is a security code that is typed in by the user ...

With the competition so tight, it is a must for these establishments to develop a system of security which would protect their privacy and important matters from intruders. This application note will ...

What Is a Hash Function? A hash function is an arithmetic function that transforms an input (or a ‘message’) into a string of a predetermined number of bytes. The output, such as a hash code or a hash ...

In many network communications it is crucial to be able to authenticate both the contents and the origin of a message. Digital signatures based on public key schemas are used for such authentication.