Transport Layer Security (TLS)
What is TLS
Transport Layer Security (TLS) is a cryptographic protocol designed to provide secure communication over a computer network. It is widely used in web browsers and other applications. TLS versions refer to the different versions of the TLS protocol, which have been released over the years and provide varying levels of security. The latest version is TLS 1.3, which was published in 2018.
The Process of TLS handshaking
In the process of establishing an HTTPS connection, the client and server both exchange data about the TLS version, cipher algorithms, compression methods, certificates, and public keys in order to create a secure, encrypted connection using a symmetric key. This key is then used to encrypt the application (HTTP) data, allowing it to be securely transmitted. 1
The importance of TLS
The TLS (Transport Layer Security) handshake is the process that establishes a secure communication link between a client and a server. The handshake involves several steps that enable the client and server to authenticate each other and negotiate the encryption keys that will be used to secure the communication.
The TLS handshake is necessary because it establishes a secure connection between the client and server, protecting the data that is transmitted between them. Without the handshake, the data transmitted between the client and server would be vulnerable to interception and tampering by third parties.
The TLS handshake also enables the client and server to negotiate the encryption keys that will be used to secure the communication. This is important because the encryption keys must be unique for each session and must be known only to the client and server. The handshake ensures that the keys are exchanged securely and that only the client and server have access to them.
Overall, the TLS handshake is essential for establishing secure communication between a client and a server on the internet. It protects the data transmitted between the two parties and enables them to negotiate the encryption keys that will be used to secure the communication.