# 1.2.5 DID certification

<figure><img src="/files/7wY20Ml4WK8osczyu3gn" alt="" width="310"><figcaption></figcaption></figure>

1\. Click the \[DApp] button on the BIZA Platform main screen.&#x20;

2\. Press the \[Ok] button.

3\. Enter the already registered secondary password.

4\. Register DID personal information.&#x20;

If you are a Korean, click the first DID personal information verification button. If you are a foreigner, click the second DID personal information verification button.

5\. After clicking on the individual carrier you are using,&#x20;

Name registered with telecommunication company, resident registration number, phone number.

After entering the security code, all you need is simple app and text authentication.

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