Tidied up example/static test executables

GCryptLib/exec/visualize-singleblock-diffusion.cpp

@@ -0,0 +1,45 @@
+#include <iostream>
+#include <GCrypt/GWrapper.h>
+#include <GCrypt/Key.h>
+#include <BmpPP/Bmp.h>
+#include "Visualize.h"
+
+const std::string execName = "visualize-singleblock-diffusion";
+
+using namespace Leonetienne::GCrypt;
+using namespace Leonetienne::BmpPP;
+using namespace Leonetienne::Eule;
+
+int main() {
+
+  // Create input block
+  const std::string input_str = "Hello :3";
+  Block input;
+  input.FromTextString(input_str);
+  VisualizeBlock(input, execName+"-input.bmp");
+
+  // Create a key
+  const Key key = Key::Random();
+  VisualizeBlock(key, execName+"-key.bmp");
+
+  // Create a cipher
+  GCipher cipher(key, GCipher::DIRECTION::ENCIPHER);
+
+  // Encipher our block
+  Block cipherblock = cipher.Digest(input);
+  VisualizeBlock(cipherblock, execName+"-output.bmp");
+
+  // Now flip a bit in the input
+  input.FlipBit(35);
+  VisualizeBlock(input, execName+"-input-flip.bmp");
+
+  // Reset our cipher, and encipher the input with a flipped bit
+  cipher.Initialize(key, GCipher::DIRECTION::ENCIPHER);
+
+  // Encipher our block
+  cipherblock = cipher.Digest(input);
+  VisualizeBlock(cipherblock, execName+"-output-flip.bmp");
+
+  return 0;
+}
+