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It uses encryption for secure communication over a computer network, and is widely used on the Internet. [1] [2] In HTTPS, the communication protocol is encrypted using Transport Layer Security (TLS) or, formerly, Secure Sockets Layer (SSL). The protocol is therefore also referred to as HTTP over TLS, [3] or HTTP over SSL.
Encryption: SSL certificates encrypt data sent between a web server and a user’s browser, ensuring that sensitive information is protected throughout transmission. This encryption technology stops unauthorized parties from intercepting and interpreting data, so protecting it from possible risks such as hacking or data breaches.
SSL (Secure Sockets Layer) is an industry standard for encrypting private data sent over the Internet. It helps protect your account from hackers and insures the security of private data sent over the Internet, like credit cards and passwords.
In a public-key encryption system, anyone with a public key can encrypt a message, yielding a ciphertext, but only those who know the corresponding private key can decrypt the ciphertext to obtain the original message.
TLS, sometimes called by its older name Secure Sockets Layer (SSL), is notable for being a part of HTTPS, a protocol for securely browsing the web. In a typical public-key infrastructure (PKI) scheme, the certificate issuer is a certificate authority (CA), [3] usually a company that charges customers a fee to issue certificates for them.
X.509 certificates are used in many Internet protocols, including TLS/SSL, which is the basis for HTTPS, [2] the secure protocol for browsing the web. They are also used in offline applications, like electronic signatures. [3] An X.509 certificate binds an identity to a public key using a digital signature.
SSL has been succeeded by TLS for most uses. However, the name Cipher Suite was not used in the original draft of SSL. Instead the ability for a client and a server to choose from a small set of ciphers to secure their connection was called Cipher-Choice. [5] [6] It was not until SSL v3 (the last version of SSL) that the name Cipher Suite was ...
Over the years, various mechanisms have been proposed to encrypt the communication between email servers. Encryption may occur at the transport level (aka "hop by hop") or end-to-end. Transport layer encryption is often easier to set up and use; end-to-end encryption provides stronger defenses, but can be more difficult to set up and use.