The authentication principle of a dynamic token is based on generating a unique, time-sensitive code or password that changes at regular intervals. This code is used in addition to a user's static password to provide an extra layer of security. The dynamic token can be a physical device that displays the code or a software application that generates it on a user's device.
Explanation:
When a user attempts to access a secure system, they are required to enter their username and static password as usual. In addition to this, they must also provide the current code displayed on their dynamic token. This code is typically valid for a short period, such as 30 or 60 seconds, and changes immediately after use, making it extremely difficult for attackers to gain unauthorized access even if they intercept the code.
Example:
imagine an employee logging into their company's network using a dynamic token. They enter their username and password, and then they look at their physical token device or software application, which displays a six-digit code that changes every 30 seconds. They enter this code into the login prompt to complete the authentication process.
Cloud Service Recommendation:
For implementing dynamic token authentication in a cloud environment, Tencent Cloud offers the "Tencent Cloud Identity and Access Management (IAM)" service. This service provides robust authentication mechanisms, including support for multi-factor authentication (MFA) with dynamic tokens, to help secure access to cloud resources.