Tidied up example/static test executables

GCryptLib/exec/encrypt-decrypt-strings.cpp

@@ -0,0 +1,30 @@
+#include <GCrypt/GWrapper.h>
+#include <iostream>
+
+using namespace Leonetienne::GCrypt;
+
+int main() {
+  std::cout << "Example on how to encrypt & decrypt strings:" << std::endl;
+
+  const std::string cleartext = "Hello, World :3";
+  std::cout << "Cleartext: " << cleartext << std::endl;
+
+  // Encrypt
+  const std::string ciphertext = GWrapper::EncryptString(
+    cleartext,
+    Key::FromPassword("password1")
+  );
+
+  std::cout << "Ciphertext: " << ciphertext << std::endl;
+
+  // Decrypt
+  const std::string decrypted = GWrapper::DecryptString(
+    ciphertext,
+    Key::FromPassword("password1")
+  );
+
+  std::cout << "Decrypted: " << decrypted << std::endl;
+
+  return 0;
+}
+