SSL/TLS protocol makes TCP a secure protocol, and whenever an application needs to send sensitive information over the internet, it is a requirement to use the send over SSL. ![]() ![]() Integrity: Makes data you send unable to be altered or chnaged on it’s way to the reciever end.Īuthentication: Making sure that data you send are actually sent to the right end, making it impossible for intruders to pretend being the other end. To demonstrate the usage of SSL, let’s follow this example:Įncryption: Makes data exhanged between end hosts unreadable by others. ![]() This new layer makes our data encrypted so that others can’t interpret, and adds end-to-end authentication and data integrity. For this need, a new and more secure version of TCP is created and called SSL (Secure Sockets Layer). you need to have a secure connection between your computer and these services. If you use services like ebay, Messenger and Gmail for example, and share credit card information and secure chat and whatever data that you don’t want others to see. However, the data a TCP segment encapsulates, is not secure, meaning any intruder on the network can read and understand the data part. ![]() And if you already know about TCP, it makes sure that data gets sent, with the correct sequence and to the right end host. When data gets send over the internet’s network, it gets segmented using one of the Transport layer protocols, and most of the times it’s TCP (the Transmission Control Protocol).
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