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This content applies to WaaS 1.0 only. We highly recommend that you upgrade to WaaS 2.0.

You’ll need to complete the following configurations on the server where the callback server is deployed:

Generate the callback server’s RSA private key

openssl genrsa -out callback-server-pri.pem 4096

Export the callback server’s RSA public key

openssl rsa -in callback-server-pri.pem -pubout >callback-server-pub.key

Copy the exported RSA public key (i.e. the callback-server-pub.key file) to the server where the TSS Node is deployed
Copy the RSA public key of the TSS Node to the configuration files of the callback server
If you use the callback server codes provided by Cobo Custody, please refer to the configuration instructions in the samples
After you’ve successfully completed TSS Node initialization, execute the following command to query the RSA public key of the TSS Node:

sudo ./tss-node.sh info

Output example:

INFO[2022-12-14T07:09:44Z] Callback public key:
-----BEGIN PUBLIC KEY-----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-----END PUBLIC KEY-----

The Callback public key will be the RSA public key of the TSS Node.

Callback Server Examples TSS Node Configuration & Callback Server Startup

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Callback Server Configuration