Transport Layer Security Market
The successor to the now-deprecated Secure Sockets Layer (SSL), Transport Layer Security (TLS), is a cryptographic protocol used to secure network communications. The protocol is widely used in applications such as email, instant messaging, and voice over IP, but its most visible application is in HTTPS security. The primary goal of the TLS protocol is to provide cryptography between two or more communicating computer applications, including privacy (confidentiality), integrity, and authenticity through the use of certificates. It is used at the application layer and consists of two layers: the TLS record and the TLS handshake protocols.
How does Transport Layer Security work?
Transport Layer Security employs a client-server handshake mechanism to establish an encrypted and secure connection and to ensure the communication's authenticity. Here's a rundown of the procedure:
- Devices that communicate exchange encryption capabilities.
- An authentication process is used to help prove that the server is the entity it claims to be.
- A session key exchange takes place. Clients and servers must agree on a key during this process to ensure that the secure session is between the client and server and not something in the middle attempting to hijack the conversation.
While Transport Layer Security (TLS) can be extremely effective for ensuring data privacy, it can also have unintended consequences for cybersecurity. TLS encrypts internet traffic, which not only renders data unreadable but also renders malware and other threats unreadable. To close this security gap, organisations typically need to decrypt incoming traffic for TLS/SSL inspection by security devices and software, a solution that can come with significant cost, performance, and scalability penalties.