Category : Java | Sub Category : Interview Questions | By Prasad Bonam Last updated: 2023-07-10 01:09:46 Viewed : 356
Differences between SSL, HTTP, HTTPS, and TLS:
SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are cryptographic protocols used to provide secure communication over the Internet. Here is a breakdown of the differences between SSL, HTTP, HTTPS, and TLS:
HTTP (Hypertext Transfer Protocol): HTTP is the protocol used for transmitting data over the internet. It defines how data is formatted and transmitted between a web server and a web browser. However, HTTP does not provide any encryption or security mechanisms, meaning that data sent over HTTP is transmitted in plain text and can be intercepted and read by unauthorized parties.
SSL (Secure Sockets Layer): SSL was one of the first cryptographic protocols designed to provide secure communication over the internet. It used a combination of encryption and authentication mechanisms to protect data transmitted between a web server and a web browser. SSL has been widely used, but it is now considered outdated and insecure due to vulnerabilities discovered over the years.
TLS (Transport Layer Security): TLS is the successor to SSL and provides similar functionality. It is an updated and more secure version of the protocol. TLS operates at the transport layer of the network stack and establishes a secure connection between a client (web browser) and a server (web server). It ensures the confidentiality and integrity of the data transmitted over the network.
HTTPS (Hypertext Transfer Protocol Secure): HTTPS is a variant of HTTP that uses TLS (or its predecessor, SSL) to provide secure communication. When a website uses HTTPS, the communication between the web server and the web browser is encrypted and protected from interception and tampering. HTTPS is commonly used for secure transactions, such as online banking, e-commerce, and sensitive data transfers.
In summary, SSL and TLS are cryptographic protocols that provide secure communication over the internet. SSL is the older version, while TLS is the newer and more secure version. HTTP is the standard protocol for transmitting data over the internet but lacks security features. HTTPS is a secure variant of HTTP that uses SSL or TLS to encrypt and protect the data transmitted between a web server and a web browser.