gRPC Advanced Security Examples

This repo contains example code for different security configurations for grpc-go using advancedtls.

The servers run a basic echo server with the following setups:

• Port 8885: A server with a good certificate using certificate providers and crl providers.
• Port 8884: A server with a revoked certificate using certificate providers and crl providers.
• Port 8883: A server running using InsecureCredentials.

The clients are designed to call these servers with varying configurations of credentials and revocation configurations.

• mTLS with certificate providers and CRLs
• mTLS with custom verification
• mTLS with credentials from credentials.NewTLS (directly using the tls.Config)
• Insecure Credentials

Building and Running

# Run the server
$ go run server/main.go -credentials_directory $(pwd)/creds
# Run the clients from the `grpc-go/examples/features/advancedtls` directory
$ go run client/main.go -credentials_directory $(pwd)/creds

Stop the servers with ctrl-c or by killing the process.

Developer Note - Generate the credentials used in the examples

The credentials used for these examples were generated by running the examples/features/advancedtls/generate.sh script.

If the credentials need to be re-generated, run ./generate.sh from /path/to/grpc-go/examples/features/advancedtls to re-create the creds directory containing the certificates and CRLs needed for these examples.