Principle security

 There are five principles of security. They are as follows: 

Confidentiality:-

                     The principle of confidentiality specifies that only the sender and the intended recipient should be able to access the content of the message.

Integrity:-

                 The confidential information sent by A to B which is accessed by C without the permission or knowledge of A and B. 

 Authentication:-

                  Authentication mechanism helps in establishing proof of identification. 

Access control:- 

                   Access control specifies and control who can access what.  

Availability:- 

                    It means that assets are accessible to authorized parties at appropriate times.