Initial encryption/decryption via ChaCha20-Poly1305

example.go

@@ -4,12 +4,34 @@ import (
 	"fmt"
 	"os"
 	"rcw/daemon"
+	"rcw/wrappers"
 )
 
+// This sample program serves purley as a way to interactively test the features
+// of RCW before building it into your own application.
+//
+// Usage:
+// rcw <text> : Runs the rcw daemon to serve the provided text for three minutes
+// rcw : Requests the data served by the RCW daemon and outputs it to stdout
+// rcw enc <text> <passwd> : Encrypts the provided text and outputs the ciphertext to encrypted-example.txt
+// rcw dec <passwd> : Decrypts the provided file and outputs the plaintext to stdout
+
 func main() {
-	if len(os.Args) > 1 {
+	switch len(os.Args) {
+	case 2:
+		// serve data
 		daemon.Start(os.Args[1])
-	} else {
+	case 3:
+		// decrypt file
+		encBytes, _ := os.ReadFile("encrypted-example.txt")
+		decBytes := wrappers.DecryptCha(encBytes, []byte(os.Args[2]))
+		fmt.Println(string(decBytes))
+	case 4:
+		// encrypt data (from cli args)
+		encBytes := wrappers.EncryptCha([]byte(os.Args[2]), []byte(os.Args[3]))
+		os.WriteFile("encrypted-example.txt", encBytes, 0644)
+	default:
+		// request served data
 		fmt.Println(daemon.Call())
 	}
 }