/// <summary>
/// 解密文件
/// </summary>
/// <param name="filePath">输入文件路径</param>
/// <param name="savePath">解密后输出文件路径</param>
/// <param name="keyStr">密码，可以为“”</param>
/// <returns></returns>
public static bool DecryptFile(string filePath, string savePath, string keyStr)
{
if (string.IsNullOrEmpty(keyStr))
{
throw new Exception("加密密钥不能为空");
}
DesCryptoService des = new DesCryptoService(keyStr, DESCryptoServiceProvider.Create());
return(des.DecryptFile(filePath, savePath));
}
/// <summary>
/// 解密字符串
/// </summary>
/// <param name="inputStr">要解密的字符串</param>
/// <param name="keyStr">密钥</param>
/// <returns>解密后的结果</returns>
static public string SDecryptString(string inputStr, string keyStr)
{
if (string.IsNullOrEmpty(keyStr))
{
throw new Exception("加密密钥不能为空");
}
DesCryptoService des = new DesCryptoService(keyStr, DESCryptoServiceProvider.Create());
return(des.DecryptString(inputStr));
}