Transport Layer Security (TLS) is a protocol that provides privacy and data integrity between communicating applications. It is the successor to Secure Sockets Layer (SSL), and is widely used to secure Internet communications, including email, file transfers, and Web browsing.
TLS works by establishing a secure channel between two communicating applications, such as a Web browser and a Web server. The protocol uses a combination of encryption, digital signatures, and certificates to ensure the privacy and integrity of the data being transmitted. When a TLS connection is established, the client and server agree on a set of cryptographic algorithms to use for the session. The client and server then exchange digital certificates to establish their identities and verify that they trust each other.
TLS provides several important security features, including:
Confidentiality: Data is encrypted, making it unreadable to unauthorized parties.
Integrity: Data is protected against tampering or modification during transmission.
Authentication: The identities of the client and server are verified using digital certificates.
TLS is an important component of secure Internet communication and is widely used by businesses, governments, and individuals around the world.