WHAT ARE SSL AND SSH PROTOCOLS?
In the world of web security, SSL and SSH are both cryptographic protocols that serve as pillars of support for one another. It is a well-known reality that sensitive information that is transmitted across a network is susceptible to being hacked at any time. Incorporating these protocols into your network provides a safe and secure channel for information sharing over the Internet. This is accomplished through the use of a variety of encryption mechanisms.
This article will examine SSL (secure socket layer) and SSH (secure shell) protocols, as well as the applications of each:
SSL (secure socket layer): SSL, also known as the secure socket layer, is a transport layer protocol that provides encryption across other transport layer protocols, such as the HTTP and FTP layers, during the flow of data between the server and the browser. The most advantageous application of SSL is that credit card information or other bank details can be submitted to the browser securely without the risk of being eavesdropped on or otherwise intercepted.
On the 6th, SSL will be introduced (i.e. presentation layer of the OSI model). CA certificates make SSL a little more secure and complicated than it otherwise would be. The majority of websites employ SSL by purchasing either expensive or inexpensive SSL certificates, depending on their needs.
The use of public and private key pairs helps to protect the transfer of confidential information. Because it makes use of the port 443 protocol, it is widely used in the e-commerce sector as well as in banking, social media, healthcare, and other businesses where information security is a top priority.
SSH (Secure Shell) is a shell program that is designed to transfer data between computers that are securely linked via the Internet. SSH is frequently used by network administrators to provide remote login and remote control access between two systems. SSH is a transport protocol that is completely independent of the SSL layer in terms of functionality. TELNET and other insecure remote protocols such as RLOGIN, RSH, and REXEC protocols, which were previously used for accessing remote computers and transferring information, have been replaced by the secure SSH protocol. The data transferred through these shell protocols was not encrypted, and it was assumed that it had been intercepted. The most common use of SSH is to protect the network tunnel between two computers.
In SSH, secure communication is accomplished either via the use of a public key and private key pairing or through the use of a user id and password. It makes use of port 22 to communicate effectively. The use of SSH on UNIX computers, with only limited use on the Windows operating system, is a common example of SSH usage.
It is necessary to exchange key fingerprints to have a successful transfer take place. In contrast to SSL, where PKI (public key infrastructure) is utilized in conjunction with signed certificates. Using SSH to fix connectivity issues in cloud computing is a good idea since it allows you to create a tunnel from the Internet to a virtual machine through a firewall.