RECOMMENDATION FOR USING SSH KEYS

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SSH keys also commonly known as Secure Shell Protocol keys are the set of keys that allow the users to exchange data and files between two channels through a secure medium. The primary function of these key sets is to provide a secure private transaction medium to the users from both client end as well as server end. These keys are mostly used for the Git repository function. 


 Public key cryptography is mostly used by SSH keys for communicating. Asymmetric algorithms are used in public-key cryptography. While using SSH keys, the key used to encrypt the message is totally contrary to the one used to decrypt it. 


 These keys actually comprise two sets namely - Public key and private key. A public key is held by all, which means anyone can get access to it without much trouble, though the access to the private key is only with the users and the permission to step into the data is only granted after proper authentication is provided with proper passwords and valid I’d network. 




  • TIPS FOR USING SSH KEYS

It’s been observed that SSH keys are used quite often for security purposes. Additionally, users try to implement a lot of practices to make the best of the security system. 


Yet, if you want to use the keys set more effectively, you can use some of these tips.

  1. Avoid entering a passphrase every time.

  2. Key management policies

  3. Use agent forwarding safely

  4. Keep a persistent terminal open



  1. Avoid entering a passphrase every time -

It is highly suggested to use a passphrase whenever you use SSH keys for making the Git repository. But honestly, using a passphrase each time you do it, is actually very annoying and can drive one crazy.


So what you can do is, instead of forming it each time you can save and restore the old one. You can do this by using a keychain when using macOS and while operating Windows you can do it with the help of PuTTY pageant. 



  1. Key management policies

Once you have created SSH keys, it is really very essential to manage them well and in terms to manage them one needs to have a backbone and for that, you can use Key Management Policy. It is the fundamental tool to supervise SSH keys and in fact, it is said to be one of the best practices to run them. 


  1. Use agent forwarding safely

Agent forwarding actually means passing on your SSH keys details with the other host. When you share your SSH key credentials with them, it simultaneously creates two channels, wherein one of them is meant for interactive communication and the other one is used for forwarding the details.


While redirecting the authentication details with the agent, please be sure of the thing that they do have a valid user id and you check out their background well before sharing it. Because just in case if the credentials are forwarded to the wrong person, it risks the chances of your data and information to be misused. 

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