//
//====================================================================================================
/// <summary>
/// return a DES encrypted string. This is a two way so use it for little sister security, not foreign government security
/// </summary>
/// <param name="sourceToEncrypt"></param>
/// <returns></returns>
private static string encryptDes(CoreController core, string sourceToEncrypt)
{
string returnResult = "";
try {
if (string.IsNullOrEmpty(core.appConfig.privateKey))
{
//
}
else
{
// Compute has key using DES
byte[] saltBytes = ASCIIEncoding.ASCII.GetBytes("notsorandomsalt");
byte[] key = ASCIIEncoding.ASCII.GetBytes(HashEncode.computeHash(core.appConfig.privateKey, "SHA512", saltBytes));
Array.Resize(ref key, 24);
TripleDESCryptoServiceProvider DES = new TripleDESCryptoServiceProvider {
Key = key,
Mode = CipherMode.ECB
};
ICryptoTransform DESEncrypt = DES.CreateEncryptor();
byte[] Buffer = ASCIIEncoding.ASCII.GetBytes(sourceToEncrypt);
Buffer = DESEncrypt.TransformFinalBlock(Buffer, 0, Buffer.Length);
returnResult = Convert.ToBase64String(Buffer);
}
} catch (Exception ex) {
LogController.logError(core, ex);
throw;
}
return(returnResult);
}
//
//====================================================================================================
/// <summary>
/// return an encrypted string. This is a one way so use it passwords, etc.
/// </summary>
/// <param name="password"></param>
/// <returns></returns>
public static string oneWayEncrypt(CoreController core, string password)
{
string returnResult = "";
try {
returnResult = HashEncode.computeHash(password, "SHA512", null);
} catch (Exception ex) {
LogController.logError(core, ex);
throw;
}
return(returnResult);
}
//
//====================================================================================================
/// <summary>
/// return true if an encrypted string matches an unencrypted string.
/// </summary>
/// <param name="sourceToTest"></param>
/// <returns></returns>
public static bool oneWayVerify(CoreController core, string sourceToTest, string encryptedToken)
{
bool returnResult = false;
try {
returnResult = HashEncode.verifyHash(sourceToTest, "SHA512", encryptedToken);
} catch (Exception ex) {
LogController.logError(core, ex);
throw;
}
return(returnResult);
}
public ActionResult CheckLogin(LoginVM loginVM)
{
if (ModelState.IsValid)
{
try
{
var userName = loginVM.UserName;
var password = loginVM.Password;
if (string.IsNullOrEmpty(userName))
{
return(Json(new { Success = false, ErrorMessage = "请输入用户名" }, JsonRequestBehavior.AllowGet));
}
if (string.IsNullOrEmpty(password))
{
return(Json(new { Success = false, ErrorMessage = "请输入密码" }, JsonRequestBehavior.AllowGet));
}
var checkedPass = ValidateCode == loginVM.ValidateCode;
//检验验证码
if (LoginHelper.IsAllowValidateCode && !checkedPass)
{
return(Json(new { Success = false, ErrorMessage = string.IsNullOrWhiteSpace(ValidateCode) ? "验证码失效" : "验证码错误" }, JsonRequestBehavior.AllowGet));
}
//解密的密码
var pPassword = JSDes.DesDecrypt(password, loginVM.LoginSecretKey);
//将明文密码转化为MD5加密
password = HashEncode.HashEncoding(pPassword);
var user = LoginHelper.GetLoginUserInfo(StringSafeFilter.Filter(loginVM.UserName), StringSafeFilter.Filter(password.ToUpper()));
if (user == null)
{
//用户名或密码有误！
return(Json(new { Success = false, ErrorMessage = "用户名或密码有误" }, JsonRequestBehavior.AllowGet));
}
LoginHelper.SaveUserInfoToSession(user);
return(RedirectToAction("Index", "Home"));
}
catch
{
}
}
return(Json(new { Success = true }, JsonRequestBehavior.AllowGet));
}
//
//====================================================================================================
/// <summary>
/// return a DES decrypted string. blank or non-base64 strings return an empty string. Exception thrown if decryption error. This is a two way so use it for little sister security, not foreign government security
/// </summary>
/// <param name="sourceToDecrypt"></param>
/// <returns></returns>
private static string decryptDes(CoreController core, string sourceToDecrypt)
{
string returnResult = "";
try {
if (string.IsNullOrEmpty(sourceToDecrypt))
{
//
// -- source blank, decrypt to blank
}
else if (!sourceToDecrypt.isBase64String())
{
//
// -- source invalid, decrypt to blank
}
else
{
byte[] saltBytes = ASCIIEncoding.ASCII.GetBytes("notsorandomsalt");
byte[] key = ASCIIEncoding.ASCII.GetBytes(HashEncode.computeHash(core.appConfig.privateKey, "SHA512", saltBytes));
Array.Resize(ref key, 24);
byte[] buffer = System.Text.ASCIIEncoding.ASCII.GetBytes(core.appConfig.privateKey);
TripleDESCryptoServiceProvider DES = new TripleDESCryptoServiceProvider {
Key = key,
Mode = CipherMode.ECB
};
ICryptoTransform DESDecrypt = DES.CreateDecryptor();
buffer = Convert.FromBase64String(sourceToDecrypt);
try {
returnResult = System.Text.ASCIIEncoding.ASCII.GetString(DESDecrypt.TransformFinalBlock(buffer, 0, buffer.Length));
} catch (Exception ex) {
LogController.logError(core, ex);
throw;
}
}
} catch (Exception ex) {
LogController.logError(core, ex);
throw;
}
return(returnResult);
}
