The foundation of all 2-factor authentication solutions is the MFA server. How the two-factor authentication solutions are built Advantages and risks of developing your own server component.Additional features of the Protectimus MFA solution.The server component: SaaS or On-Premise.How the two-factor authentication solutions are built.Sign up to Protectimus 2FA Service and get 25$ to your account That’s why in this article we’ll also discuss the advantages of developing a 2FA server component independently, as well as the difficulties that it inevitably leads to. When we get questions asking us to compare two-factor authentication solutions by Protectimus and Google Authenticator, we understand that the client is planning to develop a server component on their own, but they still aren’t sure. After integrating it with your system, your employees’ and users’ accounts will be protected from unauthorized access, once and for all. Unlike Google Authenticator, Protectimus is a complex, complete two-factor authentication solution. However, in any authentication system, what really matters is not the OTP token that generates one-time passwords, but the server component that verifies them. One of our tokens, the Protectimus Smart OTP, works similarly to this app. In this article, we’ll try to answer these questions.įirstly, keep in mind that Google Authenticator is only a one-time password generator app. This can be a particular problem if the attacker breaches a large authentication database.People often ask us to compare the Protectimus two-factor authentication solutions with Google Authenticator and explain how we’re better. An attacker with access to this shared secret could generate new, valid TOTP codes at will. TOTP credentials are also based on a shared secret known to both the client and the server, creating multiple locations from which a secret can be stolen. Due to the short window in which TOTP codes are valid, attackers must proxy the credentials in real time. However, users must enter TOTP codes into an authentication page, which creates the potential for phishing attacks. ![]() Unlike passwords, TOTP codes are single-use, so a compromised credential is only valid for a limited time. But a single leap second does not cause the integer part of Unix time to decrease, and C T is non-decreasing as well so long as T X is a multiple of one second. When a leap second is inserted into UTC, Unix time repeats one second. T X is the length of one time duration (e.g.T 0 is the epoch as specified in seconds since the Unix epoch (e.g.T is the current time in seconds since a particular epoch,.C T is the count of the number of durations T X between T 0 and T,.TOTP uses the HOTP algorithm, replacing the counter with a non-decreasing value based on the current time:Ĭ T = ⌊ T − T 0 T X ⌋, Some authenticators allow values that should have been generated before or after the current time in order to account for slight clock skews, network latency and user delays. ![]() ![]()
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