private void btnUploadImage_Click(object sender, EventArgs e)
{
var isValidated = ValidateBeforeUpload();
if (isValidated)
{
//bool postSuccess = false;
int i = 0, j = 0;
UInt32[] llave = new UInt32[4];
UInt32[] vectorinit = new UInt32[4];
foreach (char x in txtKey.Text)
{
llave[i] = UInt32.Parse(x.ToString());
i++;
}
foreach (char x in txtIV.Text)
{
vectorinit[j] = UInt32.Parse(x.ToString());
j++;
}
Byte[] encrypt = Encrypt(txtNameImg.Text, (Bitmap)picBox.Image);
Encript encriptar = new Encript(llave, vectorinit);
encriptar.inicializacion();
encriptar.generateKeyStream((encrypt.Length) / 4);
Byte[] ciphertext = encriptar.generateCiphertext(encrypt);
Upload(txtNameImg.Text, ciphertext);
}
}
private async Task DecryptFile()
{
ImgAPI imgApi = await API.GetImageDetail(txtIPServer.Text, listFiles.SelectedItem.ToString());
if (imgApi != null)
{
Byte[] bytes = Convert.FromBase64String(imgApi.imageByteArray);
//Desencripción:
int i = 0, j = 0;
UInt32[] llave = new UInt32[4];
UInt32[] vectorinit = new UInt32[4];
foreach (char x in txtKey.Text)
{
llave[i] = UInt32.Parse(x.ToString());
i++;
}
foreach (char x in txtIV.Text)
{
vectorinit[j] = UInt32.Parse(x.ToString());
j++;
}
Encript desencriptar = new Encript(llave, vectorinit);
desencriptar.inicializacion();
desencriptar.generateKeyStream((bytes.Length) / 4);
Byte[] plaintext = desencriptar.generateCiphertext(bytes);
Bitmap bitmap = ConvertImg.ToBitMap(plaintext);
picBox.Image = bitmap;
}
else
{
ShowMessage("Error al descargar la imagen.", true);
}
}