One-Time Password (OTP)
One-Time Password (OTP) is an authentication method that generates unique, temporary codes valid for a short period. Used primarily in Two-Factor Authentication (2FA), OTP enhances security by preventing credential reuse and replay attacks. It can be delivered via authenticator apps, SMS, or email and supports TOTP (time-based) and HOTP (counter-based) algorithms. Keycloak enables OTP customization, including hash algorithms, token length, and expiration time. While OTP improves security, risks like SIM swapping and phishing highlight the need for safer alternatives such as WebAuthn or passkeys.
Recommended content for you
Passwordless authentication implementation challenges (and how to avoid them)
This article provides practical advice for Project Managers and IT Leaders on common mistakes when implementing passwordless authentication. I will provide strategies to avoid common…
The hidden costs of passwords – why it’s time to go passwordless authentication
Passwords are crucial for online security but their financial and operational burdens are unsustainable. Around 81% of data breaches are due to weak password practices1…
Passkeys Keycloak vs. commercial solutions -Azure, Okta and Google Identity
Passkeys are gaining popularity as a secure and user-friendly alternative to traditional passwords in Identity and Access Management (IAM). These cryptographic keys simplify the authentication…
Need expert support for customer and workforce identity management?
Contact us today to learn how we cover everything – from architecture design to deployment and 24/7 maintenance