Added README.md

Signed-off-by: Zachary Edgell <zacharyedgell@gmail.com>

examples/crypto/README.md

@@ -0,0 +1,40 @@
+# Crypto Example
+
+This is a simple example that demonstrates Dapr's Cryptography capabilities.
+
+> **Note:** Make sure to use latest version of proto bindings.
+
+## Running
+
+> Before you run the example make sure generate keys in examples/crypto/keys directory:
+> ```
+> mkdir -p keys
+> # Generate a private RSA key, 4096-bit keys
+> openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:4096 -out keys/rsa-private-key.pem
+> # Generate a 256-bit key for AES
+> openssl rand -out keys/symmetric-key-256 32
+> ```
+
+To run this example:
+
+1. Run the multi-app run template:
+
+<!-- STEP
+name: Run Subscriber
+output_match_mode: substring
+match_order: none
+expected_stdout_lines:
+  - '== APP - crypto-example == Successfully Decrypted String'
+  - '== APP - crypto-example == Successfully Decrypted Image'
+background: true
+sleep: 30
+timeout_seconds: 90
+-->
+
+```bash
+dapr run -f .
+```
+
+<!-- END_STEP -->
+
+2. Stop with `ctrl + c`

examples/crypto/components/local-storage.yml

@@ -8,4 +8,4 @@ spec:
   metadata:
     - name: path
       # Path is relative to the folder where the example is located
-      value: ./examples/crypto/keys
+      value: ./keys

examples/crypto/dapr.yaml

@@ -0,0 +1,10 @@
+version: 1
+common:
+  daprdLogDestination: console
+apps:
+  - appID: crypto-example
+    appDirPath: ./
+    daprGRPCPort: 35002
+    logLevel: debug
+    command: [ "cargo", "run", "--example", "crypto" ]
+    resourcesPath: ./components

examples/crypto/main.rs

@@ -40,7 +40,9 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     assert_eq!(String::from_utf8(decrypted).unwrap().as_str(), "Test");
 
-    let image = fs::read("./examples/crypto/image.png").unwrap();
+    println!("Successfully Decrypted String");
+
+    let image = fs::read("./image.png").unwrap();
 
     let encrypted = client
         .encrypt(
@@ -70,5 +72,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     assert_eq!(decrypted, image);
 
+    println!("Successfully Decrypted Image");
+
     Ok(())
 }