SSH keys are generated through a public key cryptographic algorithm, the most common being RSA or DSA. This data is then opened with the 'private' key which you hold in a secure place. You give the public 'lock' to remote parties to encrypt or 'lock' data. It is more helpful to think of the public key as a "lock" and the private key as the "key". The private vs public nomenclature can be confusing as they are both called keys. The key pair contains a public and private key. SSH uses a pair of keys to initiate a secure handshake between remote parties. The SSH acronym is also used to describe a set of tools used to interact with the SSH protocol. SSH is used for remote file transfer, network management, and remote operating system access. This authenticated and encrypted secure network protocol is used for remote communication between machines on an unsecured open network. You can use your command prompt or Git bash to run the commands.An SSH key is an access credential for the SSH (secure shell) network protocol. Your account and your company’s GitHub account. How to manage SSH keys on GitHub accounts Generating the SSH keysīefore generating SSH keys, make sure you have two different GitHub accounts. Thus, it offers both client and server authentication. On the other hand, SSH key grants access to any user using it to log into the server. With 2FA, you use a username and password to log in and provide another form of authentication.Īdding a 2FA on your GitHub account enables GitHub to generate an authentication code any time a user attempts to log in. Two-factor authentication (2FA) is a security technique used when logging into applications. The Difference between adding 2FA on your GitHub Account VS Using SSH Keys The cryptography behind SSH keys ensures that no one can decrypt your private key from the public one. If the keys match, you are granted access. A public key is shared with Git and GitHub services, and a private key is stored on your computer. On the other hand, the SSH key is an alternate way of identifying your GitHub account.Īs stated earlier, SSH keys come in pairs of public and private keys. When working with a GitHub account, you identify yourself to GitHub using your username and password. Why should you use SSH keys with Git and Github? A connection is then established once the verification is complete. Then, the client decrypts the message with a private key and sends it back to the SSH server. To establish a connection between your computer (SSH client) and the webserver (SSH server), the SSH server encrypts a message using the public key and sends it to the client. This algorithm generates a public and a private key that are logically linked to each other. The most common and secure way of data encryption and decryption is using an RSA algorithm. A public key encrypts data, and a private key decrypts it. So basically, SSH uses asymmetric encryption.Īsymmetric encryption uses two distinct keys to encrypt and decrypt data. A public key is a key that can be accessed by anyone on the internet, while a private key is specific to a particular user.Ī public key is stored on the SSH server, and a private key is stored on your SSH client. Setting up SSH, you use a pair of keys - a public key and a private key. The client-server model is a way for computers to communicate via a computer network or the internet. Computers that request a service or a request (client) and computers that serve clients with a response (Server). So, you can securely log in remotely from one system to another and transmit files.Ī client-server model is a distributed system architecture on a computer network that splits into two sections. The SSH technology is often performed using the client-server model. It provides a safe way of executing commands and configuring services remotely. SSH is designed to offer secure encryption, verification, and communication between computers. SSH is best used for accessing remote servers. SSH (Secure Shell) is a cryptographic network protocol that allows a single computer to connect with a server over the internet securely. To grasp what this article entails, it is crucial to have a good understanding of how GitHub works. Creating and updating the SSH config file.How to manage SSH Keys on GitHub Accounts.The Difference between adding 2FA on your GitHub Account VS Using SSH Keys.Why should you use SSH keys with Git and Github?.While working with two different GitHub accounts, you must set them up using an SSH key. In this article, you will learn how to use multiple SSH keys for different GitHub accounts. For instance, you can run an Organization’s GitHub account and another one for your personal projects all on the same computer. For most developers, there may be a need to run multiple GitHub accounts on one computer.
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