private void DecryptClick(object sender, EventArgs e)
{
var D = (uint)numericUpDownD.Value;
var fileInfoEncryptedFile = new FileInfo(textBoxFilePathEnryptedFile.Text);
if (!fileInfoEncryptedFile.Exists)
{
throw new InvalidOperationException($"Lz77 decoding error: file '{fileInfoEncryptedFile.FullName}' does not exist");
}
var encryptedFileExtension = GetExtensionOfEncryptedFile(fileInfoEncryptedFile);
var decryptedFileDestinationPath = $"{fileInfoEncryptedFile.FullName}.{encryptedFileExtension}";
using (var fileReader = new FileReader(textBoxFilePathEnryptedFile.Text, new Buffer()))
{
using (var fileWriter = new FileWriter(decryptedFileDestinationPath, new Buffer()))
{
rsaDecrypter.DecryptFile(fileReader, fileWriter, D);
}
}
if (checkBoxShowKeysDecoding.Checked)
{
DisplayKeys(rsaDecrypter.KeysFromLastRun, textBoxKeysDecrypt);
}
}
public void FileIsEncryptedThenDecryptedCorrectly()
{
using (var fileReader = new FileReader(filePathSource, new Buffer()))
{
using (var fileWriter = new FileWriter(filePathEncryptedFile, new Buffer()))
{
rsaEncrypter.EncryptFile(fileReader, fileWriter, Constants.N, Constants.E);
}
}
using (var fileReader = new FileReader(filePathEncryptedFile, new Buffer()))
{
using (var fileWriter = new FileWriter(filePathDecryptedFile, new Buffer()))
{
rsaDecrypter.DecryptFile(fileReader, fileWriter, Constants.D);
}
}
Assert.IsTrue(TestMethods.FilesHaveTheSameContent(filePathSource, filePathDecryptedFile));
}