public static void LoadStrings()
{
byte[] stringByteArray;
// Stores the current executing assembly and stores it in a variable.
Assembly currentAssembly = Assembly.GetExecutingAssembly();
// TODO: Encrypt the string here as it is skipped.
string stringResourceName = currentAssembly.GetManifestResourceNames()
.Aggregate("", (current, s) => (s == ByteGuardHelper.GetMd5(current) ? s : current));
// Creates a stream using the embedded resource in the current assembly.
using (Stream resourceStream = currentAssembly.GetManifestResourceStream(stringResourceName))//BYTEGUARDRESOURCESTRINGPADDINGBYTEGUARD"))
{
// Resizes the 'StringByteArray' to the correct size.
stringByteArray = new byte[resourceStream.Length];
// Reads the bytes from the embedded resource into the 'StringByteArray'.
resourceStream.Read(stringByteArray, 0, stringByteArray.Length);
}
// Decompresses the compressed bytes.
//if (DecompressEmbeddedStrings())
stringByteArray = ByteGuardHelper.GzipDecompressBytes(stringByteArray);
stringByteArray = AesDecrypt(stringByteArray, (stringResourceName + ByteGuardHelper.GetMd5(K)));
B = stringByteArray;
}
private static void GetDecryptionKey()
{
// Adds the required data values to a NameValueCollection ready to be submitted.
NameValueCollection dataValues = new NameValueCollection
{
{ "pid", GetProgramId() },
//{"csm", ByteGuardHelper.GetMd5(null, File.ReadAllBytes(Assembly.GetExecutingAssembly().Location))},
{ "csm", "00000111112222233333444445555566" },
{ "ver", GetProgramVersion() }
};
// TODO: GetFileChecksum(File.ReadAllBytes(Assembly.GetExecutingAssembly().Location)));
// Submits the required information to download the correct decryption key.
if (!SubmitData("byteguard", dataValues))
{
Environment.Exit(0);
}
if (WebResponse.Split('[', ']')[1] == "SUCCESS")
{
SetCookieContainer(false);
// If the submitted file checksum matches the checksum in the database, return the decryption key.
DecryptionKey = WebResponse.Replace("[SUCCESS] ", String.Empty);
if ((DecryptionKey = ByteGuardHelper.GetMd5(DecryptionKey)) != null)
{
ByteGuardStringProtections.K = DecryptionKey;
ByteGuardConstantProtections.K = DecryptionKey;
Authenticated();
}
else
{
MessageBox.Show("Error downloading program data.", "ByteGuard Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
SetCookieContainer(true);
}
}
else
{
// If the submitted file checksum does NOT match the checksum in the database, display the returned error and exit.
MessageBox.Show(WebResponse.Replace("[ERROR] ", String.Empty), "ByteGuard Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
SetCookieContainer(true);
}
}
// TODO: Encrypt offline strings.
// TODO: Use MD5 hash of all offline strings to protect online strings?
public static void LoadStringsOffline()
{
byte[] stringByteArray;
// Get the currently executing assembly and stores it in a variable.
Assembly currentAssembly = Assembly.GetExecutingAssembly();
string stringResourceName = currentAssembly.GetManifestResourceNames()
.Aggregate("", (current, s) => (s == ByteGuardHelper.GetMd5(current) ? s : current));
using (Stream resourceStream = currentAssembly.GetManifestResourceStream(stringResourceName))
{
// Resizes the 'stringByteArray' to the correct size.
stringByteArray = new byte[resourceStream.Length];
// Reads the bytes from the embdded resource into the 'stringByteArray'.
resourceStream.Read(stringByteArray, 0, stringByteArray.Length);
}
stringByteArray = ByteGuardHelper.GzipDecompressBytes(stringByteArray);
O = stringByteArray;
}
public static void LoadIntegers()
{
// Stores the current executing assembly and stores it in a variable.
Assembly currentAssembly = Assembly.GetExecutingAssembly();
string resourceName = currentAssembly.GetManifestResourceNames()
.Aggregate("", (current, s) => (s == ByteGuardHelper.GetMd5(current) ? s : current));
// Creates a stream using the embedded resource in the current assembly.
using (Stream resourceStream = currentAssembly.GetManifestResourceStream(resourceName))
{
// Resizes the 'StringByteArray' to the correct size.
B = new byte[resourceStream.Length];
// Reads the bytes from the embedded resource into the 'StringByteArray'.
resourceStream.Read(B, 0, B.Length);
}
B = ByteGuardStringProtections.AesDecrypt(
ByteGuardHelper.GzipDecompressBytes(B), (resourceName + ByteGuardHelper.GetMd5(K)));
//B = ByteGuardStringProtections.AesDecrypt(B, key);
}