TLS/SSL Explained: TLS/SSL Terminology and Basics


In Part 1 this series we asked, What is TLS/SSL? In this part in the series, we will be describing some of the TLS/SSL terminologies.

Before diving deeper into TLS, let’s first have a look at the very basics of SSL/TLS. Understanding the following will help you gain a better understanding of the topics discussed and analyzed later on.


Encryption is the process in which a human-readable message (plaintext) is converted into an encrypted, non-human-readable, format (ciphertext). The main purpose of encryption is to ensure that only an authorized receiver will be able to decrypt and read the original message. When unencrypted data is exchanged between two parties, using any medium, a third-party can intercept and read the communication exchanged.

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