Simplified example so it doesn't require an Azure Key Vault instance …

…and just uses a local set of keys

Signed-off-by: Whit Waldo <whit.waldo@innovian.net>

examples/Client/Cryptography/Components/local-storage.yaml

@@ -0,0 +1,11 @@
+apiVersion: dapr.io/v1alpha1
+kind: Component
+metadata:
+  name: localstorage
+spec:
+  type: crypto.dapr.localstorage
+  version: v1
+  metadata:
+    - name: path
+      # Path is relative to the folder where the example is located
+      value: ./keys

examples/Client/Cryptography/Examples/EncryptDecryptFileStreamExample.cs

@@ -17,16 +17,13 @@
 
 namespace Cryptography.Examples
 {
-    internal class EncryptDecryptFileStreamExample : Example
+    internal class EncryptDecryptFileStreamExample(string componentName, string keyName) : Example
     {
         public override string DisplayName => "Use Cryptography to encrypt and decrypt a file";
         public override async Task RunAsync(CancellationToken cancellationToken)
         {
             using var client = new DaprClientBuilder().Build();
 
-            const string componentName = "azurekeyvault"; // Change this to match the name of the component containing your vault
-            const string keyName = "myKey";
-
             // The name of the file we're using as an example
             const string fileName = "file.txt";
 
@@ -35,7 +32,6 @@ public override async Task RunAsync(CancellationToken cancellationToken)
             {
                 Console.WriteLine(line);
             }
-            Console.WriteLine();
 
             //Encrypt from a file stream and buffer the resulting bytes to an in-memory buffer
             await using var encryptFs = new FileStream(fileName, FileMode.Open);
@@ -48,8 +44,8 @@ public override async Task RunAsync(CancellationToken cancellationToken)
                 bufferedEncryptedBytes.Write(bytes.Span);
             }
 
-            Console.WriteLine($"Encrypted bytes: {Convert.ToBase64String(bufferedEncryptedBytes.WrittenMemory.ToArray())}");
-            Console.WriteLine();
+            Console.WriteLine("Encrypted bytes:");
+            Console.WriteLine(Convert.ToBase64String(bufferedEncryptedBytes.WrittenMemory.ToArray()));
 
             //We'll write to a temporary file via a FileStream
             var tempDecryptedFile = Path.GetTempFileName();
@@ -67,7 +63,7 @@ public override async Task RunAsync(CancellationToken cancellationToken)
 
             //Let's confirm the value as written to the file
             var decryptedValue = await File.ReadAllTextAsync(tempDecryptedFile, cancellationToken);
-            Console.WriteLine($"Decrypted value: ");
+            Console.WriteLine("Decrypted value: ");
             Console.WriteLine(decryptedValue);
 
             //And some cleanup to delete our temp file

examples/Client/Cryptography/Examples/EncryptDecryptStringExample.cs

@@ -17,17 +17,13 @@
 
 namespace Cryptography.Examples
 {
-    internal class EncryptDecryptStringExample : Example
+    internal class EncryptDecryptStringExample(string componentName, string keyName) : Example
     {
         public override string DisplayName => "Using Cryptography to encrypt and decrypt a string";
 
         public override async Task RunAsync(CancellationToken cancellationToken)
         {
             using var client = new DaprClientBuilder().Build();
-
-            const string componentName = "azurekeyvault"; //Change this to match the name of the component containing your vault
-            const string keyName = "myKey"; //Change this to match the name of the key in your Vault
-
 
             const string plaintextStr = "This is the value we're going to encrypt today";
             Console.WriteLine($"Original string value: '{plaintextStr}'");
@@ -40,7 +36,7 @@ public override async Task RunAsync(CancellationToken cancellationToken)
             Console.WriteLine($"Encrypted bytes: '{Convert.ToBase64String(encryptedBytesResult.Span)}'");
 
             //Decrypt the string
-            var decryptedBytes = await client.DecryptAsync(componentName, encryptedBytesResult, keyName, new DecryptionOptions(), cancellationToken);
+            var decryptedBytes = await client.DecryptAsync(componentName, encryptedBytesResult, keyName, cancellationToken);
             Console.WriteLine($"Decrypted string: '{Encoding.UTF8.GetString(decryptedBytes.ToArray())}'");
         }
     }

examples/Client/Cryptography/Program.cs

@@ -17,10 +17,13 @@ namespace Cryptography
 {
     class Program
     {
+        private const string ComponentName = "localstorage";
+        private const string KeyName = "rsa-private-key.pem"; //This should match the name of your generated key - this sample expects an RSA symmetrical key.
+
         private static readonly Example[] Examples = new Example[]
         {
-            new EncryptDecryptStringExample(),
-            new EncryptDecryptFileStreamExample()
+            new EncryptDecryptStringExample(ComponentName, KeyName),
+            new EncryptDecryptFileStreamExample(ComponentName, KeyName)
         };
 
         static async Task<int> Main(string[] args)
@@ -34,7 +37,7 @@ static async Task<int> Main(string[] args)
                 return 0;
             }
 
-            Console.WriteLine("Hello, please choose a sample to run:");
+            Console.WriteLine("Hello, please choose a sample to run by passing your selection's number into the arguments, e.g. 'dotnet run 0':");
             for (var i = 0; i < Examples.Length; i++)
             {
                 Console.WriteLine($"{i}: {Examples[i].DisplayName}");