Possible to use a node server to privately/trustlessly execute a client-encrypted request to a 3rd party site?

e.g.a client app encrypts a reddit username/pass with a TEE key,the client posts this encypted payload to node server,node server passes this payload to a TEE function which decrypts & executes the request, and encrypts the response with a client public key before passing it back to client.Any way to do this while ensuring the server host can't monitor the request/response?

Submitted January 30, 2020 at 09:07AM by waterloo304