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Transport Layer Security (TLS) is a cryptographic protocol designed to provide communications security over a computer network. The protocol is widely used in applications such as email, instant messaging, and voice over IP, but its use in securing HTTPS remains the most publicly visible.
Network Security Services. Network Security Services ( NSS) is a collection of cryptographic computer libraries designed to support cross-platform development of security-enabled client and server applications with optional support for hardware TLS/SSL acceleration on the server side and hardware smart cards on the client side.
Secure Socket Tunneling Protocol ( SSTP) is a form of virtual private network (VPN) tunnel that provides a mechanism to transport PPP traffic through an SSL/TLS channel. SSL/TLS provides transport-level security with key negotiation, encryption and traffic integrity checking. The use of SSL/TLS over TCP port 443 (by default; port can be changed ...
Server Name Indication ( SNI) is an extension to the Transport Layer Security (TLS) computer networking protocol by which a client indicates which hostname it is attempting to connect to at the start of the handshaking process. [1] The extension allows a server to present one of multiple possible certificates on the same IP address and TCP port ...
SSL 3.0 (1996) and TLS 1.0 (1999) are successors with two weaknesses in CBC-padding that were explained in 2001 by Serge Vaudenay. TLS 1.1 (2006) fixed only one of the problems, by switching to random initialization vectors (IV) for CBC block ciphers, whereas the more problematic use of mac-pad-encrypt instead of the secure pad-mac-encrypt was ...
On September 25, 2019, Cloudflare released a freemium VPN service for mobile devices called WARP. A year later, beta support for macOS and Windows was released. In April 2020, Cloudflare announced it was moving away from using reCAPTCHA in favor of hCaptcha. Cloudflare One, the company's overarching SASE platform, debuted in October 2020.
A number of commercial certificate authorities exist, offering paid-for SSL/TLS certificates of a number of types, including Extended Validation Certificates. Let's Encrypt, launched in April 2016, provides free and automated service that delivers basic SSL/TLS certificates to websites.
SSLeay is an open-source SSL implementation. It was developed by Eric Andrew Young and Tim J. Hudson as an SSL 3.0 implementation using RC2 and RC4 encryption. The recommended pronunciation is to say each letter s-s-l-e-a-y and was first developed by Eric A. Young ("eay").