How to encrypt? I used the sdk method. In the first step of the request, the return information said that it needs to be encrypted with the application public key. However, after looking at the sdk method, some fields are encrypted. What should I do? 
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Brother, have you got it done? I also need to authorize ant credit with the app recently. I am using the php interface.
As for the connection with Sesame Credit, Alipay currently has dedicated personnel to guide you. This is not a problem