2.17. Identifying the Purpose and Function of Various Security Protocols

As we discussed earlier, a protocol is a set of standards or defined rules of behavior. In regard to computers, the protocol is somewhat like a language that defines how computers communicate. If two computers do not share the same set of rules, they cannot communicate with each other. When we are connecting computers, we ensure that we are using the same protocol so that the computers can communicate; however, we can also use protocols to create an environment that does not allow another computer to interpret the communication.

The purpose of security protocols is to create a secure communication channel by using a set of rules and standards that are known only by specific ...

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