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TLS (Transport Layer Security)

Glossary / T

TLS (Transport Layer Security) Definition:

Transport Layer Security (TLS) is a cryptographic protocol that provides secure communication over a computer network. TLS is widely used to protect data Privacy and integrity during internet transactions, such as browsing, emailing, and online payments, by encrypting the data exchanged between systems.

What is TLS (Transport Layer Security)?

TLS ensures that data sent over the internet is encrypted, protecting it from eavesdropping, tampering, and forgery. It is the successor to SSL (Secure Sockets Layer) and is commonly used to secure HTTPS (Hypertext Transfer Protocol Secure) connections, as well as email, instant messaging, and other online communications.

Why is TLS (Transport Layer Security) important?

The purpose of TLS is to establish a secure channel between clients and servers, ensuring that sensitive information, such as login credentials and credit card details, remains private. By using Encryption, TLS mitigates the risks of interception and tampering by attackers, providing a trusted connection between users and services.

How does TLS (Transport Layer Security) work?

TLS works through a handshake process where the client and server exchange Encryption keys to establish a secure connection. This process involves Authentication (typically with digital certificates), key exchange, and data Encryption. TLS uses a combination of Encryption'>Asymmetric Encryption (for key exchange) and symmetric Encryption (for data transfer) to secure the communication.

TLS (Transport Layer Security) Examples:

Examples of TLS usage include securing web traffic with HTTPS, where websites display a padlock symbol in the browser address bar, and encrypting email communications to protect messages during transmission. TLS is also used in securing protocols like FTP (File Transfer Protocol) and SMTP (Simple Mail Transfer Protocol).

TLS (Transport Layer Security) Issues:

While TLS is essential for secure communications, it can be vulnerable to misconfigurations, outdated versions, or poorly implemented cipher suites. Attackers may Exploit these weaknesses to compromise data security. Regular updates, using strong cipher suites, and ensuring proper certificate management are critical to maintaining the security of TLS connections.

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