With 2 factor authentication, even if a hacker manages to guess the right password, he would still be unable to login successfully if he fails use the right private key. something he has) is called 2-factor authentication. An authentication process that imposes two different kinds of requirements to the user (e.g. That something is the user's private key. You can challenge the user to prove he's actually in possession of something only he should have.
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In addition to password authentication, which is considered one factor, you can add a second factor.īecause password authentication already challenges the user for something he knows, you can issue another kind of challenge. To counter more advanced attackers, you can add another layer of security to your SFTP authentication process.
The hackers of today have already "leveled-up". Still, good authentication may not be good enough. You make sure their passwords are known only to them. You force your users to choose long and complex passwords, andĢ. You can make password authentication work if:ġ. Of course, we already know from the spate of celebrity hacks we encountered this year, passwords can be compromised.ĭoes that mean that passwords are no longer good for authentication? Not really. That information is the user's account username/password combination. It allows a server to authenticate a user by challenging him to submit a piece of information that (theoretically) only he - the user - would know. For example, when they log in to an SFTP server, they simply enter their username and password like they would with an FTP server.Ī username and password is a good method of authentication.
SFTP 2 Factor Authenticationīecause of its many similarities with FTP, people who use SFTP usually treat it almost in the same manner as that widely used file transfer protocol. private keys) in the overall security of the SFTP protocol, how it works, where to use it, and other bits of information regarding this important element of SFTP. In this post, we'll talk about the role of SFTP keys (a.k.a. For that purpose, you'll want your users to authenticate with the right password and the right SFTP key.
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But while data-in-motion encryption can secure confidential information as it traverses the network, encryption can't prevent an impostor from carrying out the download himself. What good is an encrypted data transfer if the information it protects still falls into the wrong hands in the end? SFTP security is best known for its ability to encrypt data while in transit.
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