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Encrypting gRPC Communication with TLS/SSL

Understand how to encrypt gRPC communication by enforcing HTTPS and using TLS certificates in ASP.NET Core. This lesson guides you through configuring secure gRPC listeners, updating clients for HTTPS, and ensuring encrypted data exchanges to protect sensitive information during service communication.

When deploying a gRPC service in production, it's important to ensure that the communication between the service and the clients is encrypted. This is why it's critical to ensure that our services communicate with each other via HTTPS rather than HTTP.

With HTTP, all communication between the client and the server is open, which means that it can be read by anyone who is connected to the same network. This will allow any sensitive data to be intercepted by someone other than its intended recipient. When HTTPS is enabled, all communication is encrypted. To anyone who intercepts it, it will look like an unintelligible combination of random bytes. Only the intended recipient can decrypt it and turn it into readable data because only the recipient will have a special key to do so.

HTTP vs. HTTPS
HTTP vs. HTTPS

In this lesson, we'll have a setup where the client and the server initially use HTTP to communicate with each other. Then, we'll make some changes to it to enforce HTTPS. Our initial setup can be found in the code widget ...