What is the authentication code of the message?

Message Verification Code (MAC) is a small block of data connected to the message that the recipient uses to verify the integrity of the message. You could think of this as similar to the wax seal, which were placed on letters and formal correspondence to verify the sender's identification and confirm that the message was not open. Such codes are used when certain types of encrypted or secure data are sent so that the sender can check to confirm that the message has not been endangered. Message verification codes can appear in messages such as electronic fund transfers and e -maly. The message is sent to the recipient and when the recipient opens it, the content of the message is performed via the algorithm and creates a new message verification code. This new code is compared with the code sent along with the original message. If the codes are the same, the message is announced. If there is a difference, it means that something about the message has changed between the sender and the recipient.

The process of generating and comparing codes of message verification usually occurs behind the scenes. The sender and the recipient rely on the encryption programs they use to process Mac. The program that generates the message verification code is written by a programmer familiar with the needs of cryptography. Own applications can be written for high -security situations or people can use general programs that are easily accessible.

Several different methods can be used to create Mac, including a current cipher, hash function or block ciphers. Message verification code, known as a control sum, may be one of the several layers of security that are designed to maintain curious eyes from the messages and ensure that the messages are not manipulated or unchanged. When the recipient opens a message that has been endangered, a warning shows that the user tells the user that the message verification code does not match and that there is a problem with the message.

cryptogrAfie is a constantly evolving process. Once new techniques develop, new methods of their cracking are also created. People who are interested in data security must think of a few steps to predict methods for breaking cryptography in order to build strong security systems. The development of supercomputers helped with this process by allowing cryptographers to develop and experiment with highly advanced encryption methods.