What's HTTP? And What is the difference with HTTPS?

 
Lately heard the news that Google's search engine will be more priority to websites that already use HTTPS. And what about the websites that use traditional HTTP? What underlies hearing the news? Before going further, for those readers who do not know what HTTP and HTTPS, can be read below.What's HTTP? HTTP stands for Hypertext Transfer Protocol is a protocol to regulate the communication between the client and the server. In this case, the client is a browser or device that can display Web content. While HTTPS (Hypertext Transfer Protocol Secure) is the secure version of HTTP.The main difference is found in HTTP and HTTPS is the use of the port. In HTTP, the port used is port 80. For HTTPS, the port used is 443. By using HTTPS, information will be more secure because the encryption is done on the delivery of information. Information sent is only going to be accessible by the client and server end.In addition, include authenticate HTTPS server, data confidentiality, and data integrity. Authentication server allows users to have confidence is communicating with the intended server. Data is encrypted to make the data transmitted or received will be strictly confidential. Data integrity is related to the network attacker can not damage or alter data communication between client and server as validated by the MAC (Message Authentication Code).HTTPS is not a separate protocol, but HTTPS refers to the combination of a normal HTTP interaction over Secure Socket Layer (SSL) or Transport Layer Security (TLS). This ensures information security from eavesdroppers.In this case, there are two common types of encryption layers including Transport Layer Security (TLS) and Secure Sockets Layer (SSL). TLS is a protocol on a computer network to maintain the confidentiality of data sent by the client to the server or vice versa. With that, a third party can not eavesdrop on the data sent to the server or to the client.While SSL is an encryption technology for secure HTTP so that maintained the data transmission between the server and client. The use of SSL can usually be seen in the address bar of the browser being used. Web already installed SSL will be https://namadomain.com. Security such as is commonly used by web conduct financial transactions such as PayPal, Intenet Banking, and others.Using HTTPS will make the security of data transmission is much better. As an illustration, when we access a web page using HTTPS, the page is sent to us is encrypted in advance by the HTTPS protocol so that the identity such as name, address, and even a pin number will be encrypted so no one can steal data when the transaction took place. With this, the transaction will be more secure.It's clear why the news was heard about Google would prefer the websites that are already using HTTPS? Yes, it is associated in order to maintain the security of the website.

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