/// <summary>
/// 解密字符串
/// </summary>
/// <param name="CypherText">加密后的Base64字符串</param>
/// <param name="desKey">解密密钥</param>
/// <param name="desIV">初始向量</param>
public static string DecryptString(string CypherText, byte[] desKey, byte[] desIV)
{
DES des = DES.Create();
des.Key = FormatKey(desKey);
des.IV = FormatKey(desIV);
return(SymmetricAlgorithmHelper.DecryptString(CypherText, des));
}
/// <summary>
/// 解密文件
/// </summary>
/// <param name="inName">来源文件</param>
/// <param name="outName">输出文件</param>
/// <param name="desKey">解密密钥</param>
/// <param name="desIV">初始向量</param>
public static void DecryptFile(string inName, string outName, byte[] desKey, byte[] desIV)
{
DES des = DES.Create();
des.Key = FormatKey(desKey);
des.IV = FormatKey(desIV);
SymmetricAlgorithmHelper.DecryptFile(inName, outName, des);
}
/// <summary>
/// 加密字符串
/// </summary>
/// <param name="PlainText">原始字符串</param>
/// <param name="desKey">加密密钥</param>
/// <param name="desIV">初始向量</param>
/// <returns>Base64编码后的字符串</returns>
public static string EncryptString(string PlainText, byte[] desKey, byte[] desIV)
{
DES des = DES.Create();
des.Key = FormatKey(desKey);
des.IV = FormatKey(desIV);
return(SymmetricAlgorithmHelper.EncryptString(PlainText, des));
}
/// <summary>
/// 格式化密钥
/// </summary>
/// <param name="desKey">密钥</param>
/// <returns></returns>
public static byte[] FormatKey(byte[] desKey)
{
DES des = new DESCryptoServiceProvider();
return(SymmetricAlgorithmHelper.FormatKey(desKey, des.KeySize));
}