What is the difference between http and https?
Hypertext Transfer Protocol (http) is a system for transmitting and receiving information across the Internet. Http serves as a request and response procedure that all agents on the Internet follow so that information can be rapidly, easily, and accurately disseminated between servers, which hold information, and clients, who are trying to access it. Http is commonly used to access html pages, but other resources can be utilized as well through http. In many cases, clients may be exchanging confidential information with a server, which needs to be secured in order to prevent unauthorized access. For this reason, https, or secure http, was developed by Netscape corporation to allow authorization and secured transactions. In many ways, https is identical to http, because it follows the same basic protocols. The http or https client, such as a Web browser, establishes a connection to a server on a standard port. When a server receives a request, it returns a status and a message, which ma
http is hyper text transfer protocol which is responsible for transmitting and receiving information across the Internet where as https is secure http, which is used exchanging confidential information with a server, which needs to be secured in order to prevent unauthorized access. HTTP is Hyper Text Transport Protocol and is transmitted over the wire via PORT 80(TCP). You normally use HTTP when you are browsing the web, its not secure, and so someone can eavesdrop on the conversation between your computer and the web server. HTTP can support the client asking for a particular file to be sent only if it has been updated after a certain date and time. This would be used if the client has already retrieved a copy of a file by that name from that server, but wants to check to see if it has been updated since then. The server responds either with the updated file, with a message to say the file has not been changed, or with a message that the file no longer exists. HTTPS (Hypertext Transf
One common use of Secure Sockets Layer (SSL) is to secure Web HTTP communication between a browser and a Web server. This secure version is “plain” HTTP but sent over TLS/SSL and named HTTPS (Secure Hypertext Transport Protocol). Whereas TLS/SSL creates a secure connection between a client and a server over which any amount of data can be sent securely, HTTPs is designed to transmit individual messages securely. SSL and HTTPs are complementary rather than competing technologies. Besides using TLS/SSL, HTTPS uses port 443 instead of port 80 as with HTTP. From the user’s perspective URLs much be entered with HTTPS:// instead of HTTP://. A small lock is shown on the corner of the browser to indicate the transmission is secure.
