private void enfile_Click(object sender, EventArgs e)
{
string fileContent1 = "";
FileStream myStream = new FileStream(find.Text, FileMode.Open, FileAccess.Read); //打开文件，把文件读取到string变量
StreamReader myStreamReader = new StreamReader(find.Text, System.Text.Encoding.Default);
string fileContent;
fileContent = myStreamReader.ReadToEnd();
myStreamReader.Close();
if (name.SelectedItem.ToString() == "RSA")
{
Key.Text = skey[0];
fileContent1 = RSAcipher.EncryptString(fileContent, skey[0]);
}
if (find.Text.Trim() != string.Empty)
{
if (Key.Text.Trim() != string.Empty)
{
if (name.SelectedItem.ToString() == "Caesar cipher")
{
int k = Convert.ToInt32(this.Key.Text);
fileContent1 = Caecar.Caecarcipher.Caesar(fileContent, k);
}
else if (name.SelectedItem.ToString() == "DES")
{
fileContent1 = DEScipher.Encrypt(fileContent, Key.Text);
}
else if (name.SelectedItem.ToString() == "Permutation cipher")
{
if (order.Text.ToString() != string.Empty)
{
fileContent1 = permutation.permutationcipher.encrypt(fileContent, order.Text, Convert.ToInt32(Key.Text));
}
else
{
MessageBox.Show(this, "请输入顺序！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else if (name.SelectedItem.ToString() == "AutoKey cipher")
{
fileContent1 = Autokeycipher.encryption(fileContent, Key.Text);
}
else if (name.SelectedItem.ToString() == "Keyword cipher")
{
fileContent1 = Keywordcipher.encrypt(fileContent, Key.Text);
}
else if (name.SelectedItem.ToString() == "Vigenere cipher")
{
fileContent1 = Vigenere.Vigenere.encrypt(fileContent, Key.Text);
}
else if (name.SelectedItem.ToString() == "Playfair cipher")
{
fileContent1 = playfair.Program.encryption(fileContent, Key.Text);
}
else if (name.SelectedItem.ToString() == "CA")
{
if (order.Text.ToString() != string.Empty)
{
fileContent1 = CA.CA.encrypt(fileContent, order.Text, Convert.ToInt32(Key.Text));
}
else
{
MessageBox.Show(this, "请输入二进制密钥流！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else if (name.SelectedItem.ToString() == "Column cipher")
{
fileContent1 = Column.Column.encrypt(fileContent, Key.Text);
}
}
else
{
MessageBox.Show(this, "请输入密钥！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
MessageBox.Show(this, "请选择要加密的文件！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
FileStream myStreamr = new FileStream(save.Text, FileMode.Create, FileAccess.Write); //创建一个文件，把字符串写入文件
StreamWriter myStreamWriter = new StreamWriter(myStreamr);
myStreamWriter.Write(fileContent1);
myStreamWriter.Close();
}
private void detext_Click(object sender, EventArgs e)
{
if (name.SelectedItem.ToString() == "RSA")
{
Key.Text = skey[1];
Plaintext.Text = RSAcipher.DecryptString(Cyphertext.Text, skey[1]);
}
if (Cyphertext.Text.Trim() != string.Empty)
{
if (Key.Text.Trim() != string.Empty)
{
if (name.SelectedItem.ToString() == "Caesar cipher")
{
int k = Convert.ToInt32(this.Key.Text);
Plaintext.Text = Caecar.Caecarcipher.DeCaesar(Cyphertext.Text, k);
}
else if (name.SelectedItem.ToString() == "DES")
{
Plaintext.Text = DEScipher.Decrypt(Cyphertext.Text, Key.Text);
}
else if (name.SelectedItem.ToString() == "Permutation cipher")
{
if (order.Text.ToString() != string.Empty)
{
Plaintext.Text = permutation.permutationcipher.decrypt(Cyphertext.Text, order.Text, Convert.ToInt32(Key.Text));
}
else
{
MessageBox.Show(this, "请输入密钥顺序！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else if (name.SelectedItem.ToString() == "AutoKey cipher")
{
Plaintext.Text = Autokeycipher.decryption(Cyphertext.Text, Key.Text);
}
else if (name.SelectedItem.ToString() == "Keyword cipher")
{
Plaintext.Text = Keywordcipher.decrypt(Cyphertext.Text, Key.Text);
}
else if (name.SelectedItem.ToString() == "Vigenere cipher")
{
Plaintext.Text = Vigenere.Vigenere.decrypt(Cyphertext.Text, Key.Text);
}
else if (name.SelectedItem.ToString() == "Playfair cipher")
{
Plaintext.Text = playfair.Program.Decrypt(Cyphertext.Text, Key.Text);
}
else if (name.SelectedItem.ToString() == "CA")
{
if (order.Text.ToString() != string.Empty)
{
Plaintext.Text = CA.CA.decrypt(Cyphertext.Text, order.Text, Convert.ToInt32(Key.Text));
}
else
{
MessageBox.Show(this, "请输入二进制密钥流！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else if (name.SelectedItem.ToString() == "Column cipher")
{
Plaintext.Text = Column.Column.decrypt(Cyphertext.Text, Key.Text);
}
}
else
{
MessageBox.Show(this, "请输入密钥！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
MessageBox.Show(this, "请输入要解密的文本！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
