What is Google Authenticator? How is Google Authenticator implemented?

What is Google Authenticator?

Google Authenticator is a dynamic password tool launched by Google, which aims to solve the problem of malicious attacks on Google accounts. After generating a dynamic password on the mobile phone, in addition to the normal username and password, you need to enter the dynamic password once to successfully verify when logging in to Google-related services. This is to protect the user's information security.

How does Google Authenticator work?

The algorithm used by Google Authenticator is TOTP (Time-Based One-Time Password), and its core content includes the following three points:

1. A shared secret key (a bit sequence);

2. Current time input;

3. A signing function.

This is the end of the introduction to Google Authenticator in this issue. If you want to get more updated Google Authenticator information, please continue to pay attention!