private void btnDesEncrypt_Click(object sender, EventArgs e)
{
string plainText = txt_des_plain.Text.Trim();
string cipher = string.Empty;
byte[] key = GetDesKeyBytes();
var cipherMode = (CipherMode)Enum.Parse(typeof(CipherMode), cbox_des_cipher_mode.SelectedItem.ToString());
var paddingMode = (PaddingMode)Enum.Parse(typeof(PaddingMode), cbox_des_padding_mode.SelectedItem.ToString());
if (radio_des_type_1des.Checked)
{
Javirs.Common.Security.DesEncodeDecode des = new Javirs.Common.Security.DesEncodeDecode(
Encoding.ASCII.GetString(key),
cipherMode,
paddingMode);
var buff = des.DesEncrypt(GetDesPlainEncoding().GetBytes(plainText));
cipher = GetDesCipherEncode().Encode(buff);
}
else if (radio_des_type_3des.Checked)
{
MemoryStream mStream = new MemoryStream();
TripleDESCryptoServiceProvider tripleDESCryptoServiceProvider = new TripleDESCryptoServiceProvider();
tripleDESCryptoServiceProvider.Key = key;
tripleDESCryptoServiceProvider.Padding = paddingMode; //补位
tripleDESCryptoServiceProvider.Mode = cipherMode; //CipherMode.CBC
CryptoStream cStream = new CryptoStream(mStream,
tripleDESCryptoServiceProvider.CreateEncryptor(),
CryptoStreamMode.Write);
byte[] toEncrypt = Encoding.UTF8.GetBytes(plainText);
cStream.Write(toEncrypt, 0, toEncrypt.Length);
cStream.FlushFinalBlock();
byte[] ret = mStream.ToArray();
cStream.Close();
mStream.Close();
cipher = GetDesCipherEncode().Encode(ret);
}
else
{
var base64Res = Javirs.Common.Security.TripleDesEncodeDecode.TwiceDesEncrypt(key.Byte2HexString(), plainText);
cipher = GetDesCipherEncode().Encode(Convert.FromBase64String(base64Res));
}
txt_des_cipher.Text = cipher;
}
public static bool DesEncode(string plainText, out string cipherText)
{
string secret = "8FD018F7186343AA84D2538769F6578A";
try
{
var des = new Javirs.Common.Security.DesEncodeDecode(secret, System.Security.Cryptography.CipherMode.ECB, System.Security.Cryptography.PaddingMode.PKCS7, true);
string base64 = des.DesEncrypt(plainText);
byte[] bytes = Convert.FromBase64String(base64);
cipherText = bytes.Byte2HexString();
return(true);
}
catch (Exception ex)
{
cipherText = null;
Log.Error("DES加密失败", ex);
return(false);
}
}
private void btnDesDecrypt_Click(object sender, EventArgs e)
{
byte[] cipherBytes = GetDesCipherEncode().Decode(txt_des_cipher.Text.Trim());
byte[] key = GetDesKeyBytes();
CipherMode cipherMode = (CipherMode)Enum.Parse(typeof(CipherMode), cbox_des_cipher_mode.SelectedItem.ToString());
PaddingMode paddingMode = (PaddingMode)Enum.Parse(typeof(PaddingMode), cbox_des_padding_mode.SelectedItem.ToString());
if (radio_des_type_1des.Checked)
{
Javirs.Common.Security.DesEncodeDecode des = new Javirs.Common.Security.DesEncodeDecode(
txt_des_key.Text.Trim(),
cipherMode,
paddingMode,
radio_des_key_format_hex.Checked);
cipherBytes = des.DesDecrypt(cipherBytes);
}
else if (radio_des_type_3des.Checked)
{
MemoryStream msDecrypt = new MemoryStream(cipherBytes);
TripleDESCryptoServiceProvider tripleDESCryptoServiceProvider = new TripleDESCryptoServiceProvider();
tripleDESCryptoServiceProvider.Key = key;
tripleDESCryptoServiceProvider.Padding = paddingMode; //补位
tripleDESCryptoServiceProvider.Mode = cipherMode; //CipherMode.CBC
CryptoStream csDecrypt = new CryptoStream(msDecrypt,
tripleDESCryptoServiceProvider.CreateDecryptor(),
CryptoStreamMode.Read);
cipherBytes = new byte[cipherBytes.Length];
csDecrypt.Read(cipherBytes, 0, cipherBytes.Length);
}
else
{
var base64Res = Javirs.Common.Security.TripleDesEncodeDecode.TwiceDesDescrypt(key.Byte2HexString(), Convert.ToBase64String(cipherBytes));
cipherBytes = Convert.FromBase64String(base64Res);
}
string plain = GetDesPlainEncoding().GetString(cipherBytes);
txt_des_plain.Text = plain;
}
