<h2><u>Cryptography</u> offers a mechanism to accomplish four security goals.</h2><h2 />
Cryptography can be defined as technique to format data in such a way that it is Protected. It can be achieved by following goals:
Confidentiality is a term that ensures that the data is protected in such a way that it can not be accessed by any unauthorized member. In simpler words any kind of sensitive data is only under the access of people who have authorization key to retrieve or use it.
Integrity ensures that the data is real and authenticated. It basically safeguards the actual data.
Authentication is a process of verifying an identity by different means. Mostly it includes the the verification by username/password entrance
Non-repudiation is basically an surety that the data can't be denied by anyone. Non-repudiation provides the proof that the data is from origin and integrated.
