![]() Point your camera at the QR code provided by your identity provider or follow the instructions provided in your account settings.Īfter your account appears in your Authenticator app, you can use the one-time codes to sign in. To install the Authenticator app on iOS, scan the QR code below or open the download page from your mobile device.Īfter you install the Authenticator app, follow the steps below to add your account: To install the Authenticator app on an Android device, scan the QR code below or open the download page from your mobile device. To secure your account, the Authenticator app can provide you with a code for additional verification during sign in. ![]() If you support the TOTP standard for your users, share the following instructions with them. Among the many methods that you could support, time-based one-time passwords as a verification method are simple (users understand them), reliable (they work without network), recoverable (they can be backed up and restored) and cost-effective (they're free). In this article, we provide simple instructions that you can share with your users for using Authenticator as a time-based one-time password (TOTP) provider.Īn additional factor in authentication prevents up to 99.9% of identity compromises. TOTP necessarily needs a synchronized clock between the user and the authentication system but it eliminates the requirement for synchronization of counters or other shared secrets.If you are an identity provider or a website owner who doesn't rely on Microsoft’s enterprise or consumer identities, Microsoft Authenticator app can still help you secure the identities of your users who use two-step verification. However, some implementations of HOTP allow for the use of a time-based counter instead of a sequence-based counter, which can work offline as long as the system clock is accurate. If the user’s device is offline, the counter may become out of sync, which can result in authentication failures. This counter needs to be synchronized between the user’s device and the authentication server to ensure that the same password is generated on both ends. NOTE The HOTP algorithm requires the use of a counter to generate one-time passwords. But it also degrades the security of the algorithm a bit as well. HOTP has the advantage of not requiring an accurate clock, and the created password remains valid until used, making it more suitable for offline use. TOTP, on the other hand, employs a time-based approach to generate a new password every 30-60 seconds based on the current time and a shared secret key. While they both generate one-time passwords, the way these passwords are generated differs.Īs previously stated, HOTP employs a counter-based approach to generate one-time passwords for each authentication attempt. HOTP( HMAC-Based OTP ) and TOTP ( Time-Based OTP ) are one of the most prominent multi-factor authentication solutions for increasing internet security. Users must keep this key secure, as anyone with access to the key can generate valid one-time passwords. This means that if the key is compromised, the security of the entire system is at risk.Īnother restriction of HOTP is the possibility of synchronization problems. Because each authentication attempt generates a new one-time password. T he authentication system and the user must be in sync to generate the same password. If the counter falls out of sync, the user might be unable to authenticate, or the system might reject valid login attempts. Like the need for a shared secret key between the user and the authentication system. Though HOTP provides a high level of security, it has some limitations. The use of a shared secret key ensures to increase in the work of any hacker and hardens the authentication process overall. ( I won’t be discussing each of them here ?). This means that even if a hacker manages to intercept and obtain the password, it will be useless for future authentication attempts.įurthermore, HOTP is immune to most cyber-attacks, including phishing and replay attacks. One of the main advantages is that HOTP provides a higher level of security, as it generates a unique one-time password for each authentication attempt. Using HOTP for authentication offers several advantages over traditional password-based authentication methods. It secures sensitive information and prevents identity theft in government services.Īll of the authentication apps like Google Authenticator, Microsoft Authenticator, and Authy use TOTP and HOTP methods for generating One time codes. HOTP safeguards financial transactions and prevents unwanted access to accounts in online banking. It can function as a stand-alone authentication technique or in combination with other factors such as passwords or biometrics. ![]() Various businesses that require high security, such as online banking, government services, and healthcare, can utilize HMAC-Based OTPs. ![]()
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