Ejemplo n.º 1
0
 public static string GenerateTokenString(Jwt jwt, string key)
 {
     return(string.Format(tokenTemplate,
                          Cryptographer.Base64Encode(JsonConvert.SerializeObject(jwt.Header)),
                          Cryptographer.Base64Encode(JsonConvert.SerializeObject(jwt.Payload)),
                          GenerateSignature(jwt, key)));
 }
Ejemplo n.º 2
0
 public static Jwt DecodeTokenString(string str)
 {
     string[] arr = str.Split('.');
     return(new Jwt(JsonConvert.DeserializeObject <Header>(Cryptographer.Base64Decode(arr[0])),
                    JsonConvert.DeserializeObject <Payload>(Cryptographer.Base64Decode(arr[1])),
                    arr[2]));
 }
        /// <summary>
        /// Encrypt a sample text using the default symmetric provider.
        /// </summary>
        /// <param name="sender">Event sender</param>
        /// <param name="e">Event arguments</param>
        private void encryptButton_Click(object sender, System.EventArgs e)
        {
            if (this.inputForm != null)
            {
                this.inputForm.Title            = Resources.EncryptTitleMessage;
                this.inputForm.InstructionsText = Resources.EncryptInstructionsMessage;
                if (this.inputForm.ShowDialog() == DialogResult.OK)
                {
                    try
                    {
                        this.Cursor = Cursors.WaitCursor;

                        string valueToEncrypt = this.inputForm.Input;

                        this.encryptedContentsBase64 = Cryptographer.EncryptSymmetric(symmProvider, this.inputForm.Input);

                        this.DisplayResults(string.Format(Resources.Culture, Resources.OriginalTextMessage, this.inputForm.Input));
                        this.DisplayResults(string.Format(Resources.EncryptedTextMessage, this.encryptedContentsBase64));
                    }
                    catch (Exception ex)
                    {
                        ProcessUnhandledException(ex);
                    }
                    finally
                    {
                        this.decryptButton.Enabled = true;
                        this.Cursor = Cursors.Default;
                    }
                }
            }
        }
        /// <summary>
        /// Decrypts a set of bytes and displayed the decrypted contents.
        /// </summary>
        /// <param name="sender">Event sender.</param>
        /// <param name="e">Event arguments.</param>
        private void decryptButton_Click(object sender, System.EventArgs e)
        {
            if (this.encryptedContentsBase64 != null)
            {
                try
                {
                    this.Cursor = Cursors.WaitCursor;

                    // Descrypt and display value
                    string readableString = Cryptographer.DecryptSymmetric(symmProvider, this.encryptedContentsBase64);
                    this.DisplayResults(string.Format(Resources.Culture, Resources.DecryptedTextMessage, readableString));
                }
                catch (Exception ex)
                {
                    ProcessUnhandledException(ex);
                }
                finally
                {
                    this.Cursor = Cursors.Default;
                }
            }
            else
            {
                this.DisplayResults(Resources.DecryptErrorMessage);
            }
        }
Ejemplo n.º 5
0
        public void Send(string data)
        {
            try
            {
                if (!string.IsNullOrEmpty(data))
                {
                    var socket = new Socket(_ip.AddressFamily, SocketType.Dgram, ProtocolType.Udp);
                    socket.Bind(_ipEP);

                    var des = GetDES(socket);

                    var encryptedData = Cryptographer.SymmetricEncrypt(data, des);
                    //отправляем данные
                    socket.SendTo(encryptedData, _ipEP);

                    socket.Shutdown(SocketShutdown.Both);
                    socket.Close();
                    socket.Dispose();
                }
            }
            catch (ArgumentNullException ane)
            {
                Console.WriteLine("ArgumentNullException : {0}", ane.ToString());
            }
            catch (SocketException se)
            {
                Console.WriteLine("SocketException : {0}", se.ToString());
            }
            catch (Exception e)
            {
                Console.WriteLine("Unexpected exception : {0}", e.ToString());
            }
        }
Ejemplo n.º 6
0
        private DESCryptoServiceProvider GetDES(Socket socket)
        {
            var buffer = new byte[1024];

            // Принимаем RSA public
            var sizeRSA           = socket.Receive(buffer);
            var publicKeyJsonByte = new byte[sizeRSA];

            Array.Copy(buffer, 0, publicKeyJsonByte, 0, sizeRSA);

            var publicKeyJson       = Encoding.UTF8.GetString(publicKeyJsonByte);
            var publicKey           = JsonConvert.DeserializeObject <RSAPublicKeyParameters>(publicKeyJson);
            var publicKeyParameters = publicKey.GetRSAParameters();

            var des = Cryptographer.GetDES();
            var iv  = Cryptographer.RSAEncrypt(des.IV, publicKeyParameters);
            var key = Cryptographer.RSAEncrypt(des.Key, publicKeyParameters);

            var encrypdedDes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new DESParameters(iv, key)));

            //отправляем ключ
            socket.Send(encrypdedDes);

            return(des);
        }
Ejemplo n.º 7
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        private List <ViewUserModel> DecodeData(List <UserApp> list)
        {
            List <ViewUserModel> user_list = new List <ViewUserModel>();

            for (int i = 0; i < list.Count(); i++)
            {
                Cryptographer cryptographer = new Cryptographer().Create(list[i].Upassword);

                string firstName = cryptographer.Decode(list[i].FirstName);
                string lastName  = cryptographer.Decode(list[i].LastName);

                long count_task = _context.BoardTasks.Where(b => b.IdOwner == list[i].Id).Count();


                ViewUserModel userView = new ViewUserModel()
                {
                    Id           = list[i].Id,
                    Name         = firstName.First().ToString().ToUpper() + String.Join("", firstName.Skip(1)),
                    LastName     = lastName.First().ToString().ToUpper() + String.Join("", firstName.Skip(1)),
                    DateRegister = list[i].DateApp,
                    CountTask    = count_task,
                    Image        = list[i].ImagePath
                };

                user_list.Add(userView);
            }

            return(user_list);
        }
Ejemplo n.º 8
0
        private void btnChangeEmailSettings_Click(object sender, EventArgs e)
        {
            string       str;
            ConfigData   data           = LoadConfig(out str);
            SiteSettings masterSettings = SettingsManager.GetMasterSettings(false);

            if (string.IsNullOrEmpty(str) || (data == null))
            {
                masterSettings.EmailSender   = string.Empty;
                masterSettings.EmailSettings = string.Empty;
            }
            else
            {
                if (!data.IsValid)
                {
                    string msg = "";
                    foreach (string str3 in data.ErrorMsgs)
                    {
                        msg = msg + Formatter.FormatErrorMessage(str3);
                    }
                    ShowMsg(msg, false);
                    return;
                }
                masterSettings.EmailSender   = str;
                masterSettings.EmailSettings = Cryptographer.Encrypt(data.SettingsXml);
            }
            SettingsManager.Save(masterSettings);
            Page.Response.Redirect(Globals.GetAdminAbsolutePath("tools/SendMessageTemplets.aspx"));
        }
Ejemplo n.º 9
0
 protected void btnOK_Click(object sender, EventArgs e)
 {
     if ((txtTopkey.Text.Trim().Length != 0) && (txtTopkey.Text.Trim().Length != 8))
     {
         ShowMsg("淘宝Appkey不能为空,为8位数字ID", false);
     }
     else if ((txtTopSecret.Text.Trim().Length != 0) && (txtTopSecret.Text.Trim().Length != 0x20))
     {
         ShowMsg("淘宝AppSecret不能为空,为32位字符", false);
     }
     else
     {
         SiteSettings masterSettings = SettingsManager.GetSiteSettings(HiContext.Current.User.UserId);// SettingsManager.GetMasterSettings(false);
         if (!string.IsNullOrEmpty(txtTopkey.Text.Trim()))
         {
             masterSettings.Topkey = Cryptographer.Encrypt(txtTopkey.Text.Trim());
         }
         if (!string.IsNullOrEmpty(txtTopSecret.Text.Trim()))
         {
             masterSettings.TopSecret = Cryptographer.Encrypt(txtTopSecret.Text.Trim());
         }
         SettingsManager.Save(masterSettings);
         ShowMsg("成功保存了淘宝同步设置", true);
     }
 }
Ejemplo n.º 10
0
        bool ReEncryptKey(string oldPassword, string newPassword)
        {
            HttpContext context  = HiContext.Current.Context;
            XmlDocument document = new XmlDocument();
            string      filename = context.Request.MapPath(Globals.ApplicationPath + "/config/key.config");
            string      str2     = context.Request.MapPath(Globals.ApplicationPath + "/config/key.config.bak");

            try
            {
                document.Load(filename);
            }
            catch
            {
                document.Load(str2);
            }
            if (int.Parse(document.SelectSingleNode("Settings/Token").InnerText) == this.UserId)
            {
                XmlNode node      = document.SelectSingleNode("Settings/Key");
                byte[]  plaintext = Cryptographer.DecryptWithPassword(Convert.FromBase64String(node.InnerText), oldPassword);
                node.InnerText = Convert.ToBase64String(Cryptographer.EncryptWithPassword(plaintext, newPassword));
                document.Save(filename);
                document.Save(str2);
            }
            return(true);
        }
Ejemplo n.º 11
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        public void Send(string data)
        {
            try
            {
                if (!string.IsNullOrEmpty(data))
                {
                    Socket socket = new Socket(_ip.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
                    socket.Connect(_remoteEP);

                    var des = GetDes(socket);

                    var encryptedData = Cryptographer.SymmetricEncrypt(data, des);
                    socket.Send(encryptedData);

                    socket.Shutdown(SocketShutdown.Both);
                    socket.Close();
                    socket.Dispose();
                }
            }
            catch (ArgumentNullException error)
            {
                Console.WriteLine("ОШИБКА аргументов : {0}", error.ToString());
            }
            catch (SocketException error)
            {
                Console.WriteLine("ОШИБКА сокетов: : {0}", error.ToString());
            }
            catch (Exception error)
            {
                Console.WriteLine("ОШИБКА: {0}", error.ToString());
            }
        }
Ejemplo n.º 12
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        public void GetPasswordAndGetCodPasswordTest()
        {
            string strActual = Cryptographer.GetPassword(strIn);
            string strFinish = Cryptographer.GetCodPassword(strActual);

            StringAssert.Contains(strFinish, strIn, "Проверка методов закончена");
        }
Ejemplo n.º 13
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        /// <summary>
        /// 从加密文件中读取连接字符串
        /// </summary>
        public static void LoadConnectionStrings()
        {
            // <connectionStrings configSource="connections.config"></connectionStrings>

            AMS.Profile.IProfile profile = new AMS.Profile.Xml(IOHelper.GetDataDirectory() + "\\Dbs.dat");
            string skey = profile.GetValue("ConnectionStringSetting", "Key", string.Empty);

            if (!string.IsNullOrEmpty(skey))
            {
                string cryptedConnectionStrings = profile.GetValue("ConnectionStringSetting", "ConnectionString", string.Empty);
                if (!string.IsNullOrEmpty(cryptedConnectionStrings))
                {
                    string connectionStrings = Cryptographer.DecryptSymmetric(cryptedConnectionStrings, skey);
                    if (!string.IsNullOrEmpty(connectionStrings))
                    {
                        string tempConfigFileName = IOHelper.GetDataDirectory() + "\\temp.config";
                        System.IO.File.WriteAllText(tempConfigFileName, connectionStrings, Encoding.UTF8);

                        ExeConfigurationFileMap configMap = new ExeConfigurationFileMap {
                            ExeConfigFilename = tempConfigFileName
                        };
                        Configuration externalConfig = ConfigurationManager.OpenMappedExeConfiguration(configMap, ConfigurationUserLevel.None);

                        foreach (ConnectionStringSettings i in externalConfig.ConnectionStrings.ConnectionStrings)
                        {
                            SystemHelper.ChangeConnectionString(i.Name, i.ConnectionString, i.ProviderName);
                        }
                        System.IO.File.Delete(tempConfigFileName);
                    }
                }
            }
        }
 internal string EncodePassword(string pass)
 {
     byte[] bIn  = Encoding.UTF8.GetBytes(pass);
     byte[] bRet = Cryptographer.EncryptSymmetric("Custom Symmetric Cryptography Provider", bIn);
     return(Convert.ToBase64String(bRet));
     //return Cryptographer.EncryptSymmetric("RijndaelManaged", pass);
 }
Ejemplo n.º 15
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 public void KeyValidation(string membercode, string password, DateTime loginDate, string key)
 {
     if (!Cryptographer.GenerateSignature(membercode + password + loginDate.ToString("yyyy-MM-ddTHH:mm")).Equals(key))
     {
         throw new InvalidKeyException(membercode, password, loginDate, key);
     }
 }
        static void ConvertOldPasswordFormat()
        {
            int processed = 0;

            var toBeUpdated = new List <IUser>();

            foreach (var user in DataFacade.GetData <IUser>())
            {
                if (string.IsNullOrEmpty(user.EncryptedPassword) || !string.IsNullOrEmpty(user.PasswordHashSalt))
                {
                    continue;
                }

                string password = Cryptographer.Decrypt(user.EncryptedPassword);

                var salt = UserFormLoginManager.GenerateHashSalt();

                user.PasswordHashSalt  = Convert.ToBase64String(salt);
                user.EncryptedPassword = UserFormLoginManager.GeneratePasswordHash(password, salt);

                toBeUpdated.Add(user);

                processed++;
            }

            if (toBeUpdated.Any())
            {
                DataFacade.Update(toBeUpdated);
            }

            if (processed > 0)
            {
                Log.LogInformation(LogTitle, "User passwords converted to a new format: " + processed);
            }
        }
Ejemplo n.º 17
0
        public bool CoincidePassword(Usuario usuario, string password)
        {
            var cryptographer = new Cryptographer();
            var passwordHash  = cryptographer.GetHash(password);

            return(passwordHash.Equals(usuario.Password));
        }
Ejemplo n.º 18
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        public User ValidateUser(string username, string password)
        {
            User user = null;

            try
            {
                if (string.IsNullOrWhiteSpace(password))
                {
                    return(null);
                }

                user = GetUserByEmail(username);

                if (user == null)
                {
                    return(null);
                }

                string hash = new Cryptographer().HashPassword(password, user.Salt);
                if (user.Password == hash)
                {
                    return(user);
                }
            }
            catch (Exception e)
            {
                return(null);
            }
            return(null);
        }
Ejemplo n.º 19
0
 protected void Page_Load(object sender, EventArgs e)
 {
     if (!int.TryParse(Page.Request.QueryString["modeId"], out modeId))
     {
         base.GotoResourceNotFound();
     }
     else
     {
         btnUpdate.Click += new EventHandler(btnUpdate_Click);
         if (!Page.IsPostBack)
         {
             PaymentModeInfo paymentMode = SubsiteSalesHelper.GetPaymentMode(modeId);
             if (paymentMode == null)
             {
                 base.GotoResourceNotFound();
             }
             else
             {
                 Globals.EntityCoding(paymentMode, false);
                 txtSelectedName.Value = paymentMode.Gateway.ToLower();
                 ConfigData data = new ConfigData(Cryptographer.Decrypt(paymentMode.Settings));
                 txtConfigData.Value           = data.SettingsXml;
                 txtName.Text                  = paymentMode.Name;
                 fcContent.Text                = paymentMode.Description;
                 txtCharge.Text                = paymentMode.Charge.ToString("F", CultureInfo.InvariantCulture);
                 chkIsPercent.Checked          = paymentMode.IsPercent;
                 radiIsUseInpour.SelectedValue = paymentMode.IsUseInpour;
             }
         }
     }
 }
Ejemplo n.º 20
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 public override bool IsValid(object value)
 {
     if (value != null)
     {
         SocialNetworkDbContext dbContext           = new SocialNetworkDbContext();
         LoginAndPasswordDto    loginAndPasswordDto = (LoginAndPasswordDto)value;
         string login    = loginAndPasswordDto.Login;
         string password = Cryptographer.Hash(loginAndPasswordDto.Password);
         if (dbContext.Users.Select(u => u.Login).Contains(login))
         {
             string actualPassword = dbContext.Users.Where(u => u.Login == login).First().Password;
             if (actualPassword == password)
             {
                 return(true);
             }
             else
             {
                 ErrorMessage = "Wrong password";
                 return(false);
             }
         }
         else
         {
             ErrorMessage = "Wrong login";
             return(false);
         }
     }
     return(false);
 }
Ejemplo n.º 21
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        /// <summary>
        /// Creates the HTTP Authorization header in hawk scheme.
        /// </summary>
        internal async Task CreateClientAuthorizationInternalAsync(IRequestMessage request, DateTime utcNow)
        {
            var credential = options.CredentialsCallback();

            this.artifacts = new ArtifactsContainer()
            {
                Id        = credential.Id,
                Timestamp = utcNow.AddSeconds(HawkClient.CompensatorySeconds).ToUnixTime(),
                Nonce     = NonceGenerator.Generate()
            };

            if (options.NormalizationCallback != null)
            {
                this.artifacts.ApplicationSpecificData = options.NormalizationCallback(request);
            }

            var normalizedRequest = new NormalizedRequest(request, this.artifacts, options.HostNameSource);

            this.crypto = new Cryptographer(normalizedRequest, this.artifacts, credential);

            // Sign the request
            bool includePayloadHash = options.RequestPayloadHashabilityCallback != null &&
                                      options.RequestPayloadHashabilityCallback(request);

            string payload = includePayloadHash ? await request.ReadBodyAsStringAsync() : null;

            crypto.Sign(payload, request.ContentType);

            request.Authorization = new AuthenticationHeaderValue(HawkConstants.Scheme,
                                                                  this.artifacts.ToAuthorizationHeaderParameter());
        }
Ejemplo n.º 22
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        protected void Page_Load(object sender, EventArgs e)
        {
            openIdType = base.Request.QueryString["t"];
            if (string.IsNullOrEmpty(openIdType) || (openIdType.Trim().Length == 0))
            {
                base.GotoResourceNotFound();
            }
            PluginItem pluginItem = OpenIdPlugins.Instance().GetPluginItem(openIdType);

            if (pluginItem == null)
            {
                base.GotoResourceNotFound();
            }
            if (!Page.IsPostBack)
            {
                txtName.Text          = pluginItem.DisplayName;
                lblDisplayName.Text   = pluginItem.DisplayName;
                txtSelectedName.Value = openIdType;
                OpenIdSettingsInfo openIdSettings = OpenIdHelper.GetOpenIdSettings(openIdType);
                if (openIdSettings != null)
                {
                    ConfigData data = new ConfigData(Cryptographer.Decrypt(openIdSettings.Settings));
                    txtConfigData.Value = data.SettingsXml;
                    txtName.Text        = openIdSettings.Name;
                    fcContent.Text      = openIdSettings.Description;
                }
            }
        }
Ejemplo n.º 23
0
        /// <summary>
        /// Creates the HTTP Authorization header in hawk scheme.
        /// </summary>
        internal async Task CreateClientAuthorizationInternalAsync(HttpRequestMessage request, DateTime utcNow)
        {
            var credential = credentialFunc();

            this.artifacts = new ArtifactsContainer()
            {
                Id        = credential.Id,
                Timestamp = utcNow.AddSeconds(HawkClient.CompensatorySeconds).ToUnixTime(),
                Nonce     = NonceGenerator.Generate()
            };

            if (!String.IsNullOrWhiteSpace(this.ApplicationSpecificData))
            {
                this.artifacts.ApplicationSpecificData = this.ApplicationSpecificData;
            }

            var normalizedRequest = new NormalizedRequest(request, this.artifacts);

            this.crypto = new Cryptographer(normalizedRequest, this.artifacts, credential);

            // Sign the request
            await crypto.SignAsync(request.Content);

            request.Headers.Authorization = new AuthenticationHeaderValue(
                HawkConstants.Scheme,
                this.artifacts.ToAuthorizationHeaderParameter());
        }
        private DESCryptoServiceProvider GetDes(Socket socket)
        {
            var rsa = Cryptographer.GetRSA();

            var publicKey  = rsa.ExportParameters(false);
            var privateKey = rsa.ExportParameters(true);

            var rsaBytes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new RsaPublicKeyParameters(publicKey)));

            socket.Send(rsaBytes);

            var buffer       = new byte[1024];
            int sizeDES      = socket.Receive(buffer);
            var encryptedDES = new byte[sizeDES];

            Array.Copy(buffer, 0, encryptedDES, 0, sizeDES);
            var encryptedDESstr = Encoding.UTF8.GetString(encryptedDES);

            var encrypdedDesParams = JsonConvert.DeserializeObject <DesParameters>(encryptedDESstr);

            var desIV  = Cryptographer.RSADecrypt(encrypdedDesParams.IV, privateKey);
            var desKey = Cryptographer.RSADecrypt(encrypdedDesParams.Key, privateKey);

            DESCryptoServiceProvider des = Cryptographer.GetDES(desIV, desKey);


            return(des);
        }
Ejemplo n.º 25
0
 internal string GetSecurityHash()
 {
     return(Cryptographer.CreateHashCode(this.GetElectronicSeal(),
                                         _request.UID)
            .Substring(0, 8)
            .ToUpperInvariant());
 }
Ejemplo n.º 26
0
        private static void Main(string[] args)
        {
            Cryptographer c = new Cryptographer("aaaaaaaa");

            byte[] vs = Encoding.Unicode.GetBytes("'sÙ%šM6›>‚êUÝãÄ›ýÿ%šM6›>‚êýÿãÄ›");

            printeByte(vs);

            var r = c.Encrypt(vs);

            Console.WriteLine();
            printeByte(r);
            Console.WriteLine();
            printeByte(c.Decrypt(r));
            //var handle = GetConsoleWindow();
            //FixExeptions();
            //load();
            //loadConfig();
            //if (!startconsol)
            //    ShowWindow(handle, SW_HIDE);


            //if (exe != "" && name != "")
            //{
            //    start();
            //}
            //while (startconsol)
            //    Consol();
            Console.WriteLine("Press any Key to exit...");
            //if (!startconsol)
            Console.ReadKey();
        }
Ejemplo n.º 27
0
 public void DA_Cifrado_UpdUser(Usuario u)
 {
     try
     {
         using (SqlConnection conexion = new SqlConnection(conexionString))
         {
             SqlCommand cmd = new SqlCommand("GAP_USUARIO_UPDATE", conexion);
             cmd.CommandType = CommandType.StoredProcedure;
             cmd.Parameters.AddWithValue("@Id_Usuario", u.Id_Usuario);
             cmd.Parameters.AddWithValue("@Id_Regional", u.Id_Regional);
             cmd.Parameters.AddWithValue("@Id_Rol", u.Id_Rol);
             cmd.Parameters.AddWithValue("@Id_Categoria", u.Id_Categoria);
             cmd.Parameters.AddWithValue("@Cargo", u.Cargo);
             string Encrip = string.Empty;
             Encrip = Cryptographer.CreateHash(hashProvider, u.Clave);
             cmd.Parameters.AddWithValue("@Clave", Encrip);
             cmd.Parameters.AddWithValue("@Estado", u.Estado);
             conexion.Open();
             cmd.ExecuteNonQuery();
             conexion.Close();
         }
     }
     catch (Exception err)
     {
         throw (new Exception(err.ToString() + "-" + err.Source.ToString() + "-" + err.Message.ToString()));
     }
 }
Ejemplo n.º 28
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        protected override string AuthenticateToken(UsernameToken token)
        {
            LoginUserStatus invalidCredentials = LoginUserStatus.InvalidCredentials;

            try
            {
                SiteManager user = Users.GetUser(0, token.Identity.Name, false, false) as SiteManager;

                if ((user != null) && user.IsAdministrator)
                {
                    HiContext current = HiContext.Current;

                    user.Password = Cryptographer.Decrypt(token.Password);

                    invalidCredentials = Users.ValidateUser(user);
                }
                else
                {
                    invalidCredentials = LoginUserStatus.InvalidCredentials;
                }
            }
            catch
            {
                invalidCredentials = LoginUserStatus.InvalidCredentials;
            }

            if (invalidCredentials == LoginUserStatus.Success)
            {
                return(token.Password);
            }

            return(Cryptographer.CreateHash(token.Password));
        }
Ejemplo n.º 29
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        public void CreateAndCompareHashBytes()
        {
            byte[] hash   = Cryptographer.CreateHash(hashInstance, plainTextBytes);
            bool   result = Cryptographer.CompareHash(hashInstance, plainTextBytes, hash);

            Assert.IsTrue(result);
        }
Ejemplo n.º 30
0
        private void btnSaveSMSSettings_Click(object sender, EventArgs e)
        {
            string       str;
            ConfigData   data         = LoadConfig(out str);
            SiteSettings siteSettings = SettingsManager.GetSiteSettings(HiContext.Current.User.UserId);

            if (string.IsNullOrEmpty(str) || (data == null))
            {
                siteSettings.SMSSender   = string.Empty;
                siteSettings.SMSSettings = string.Empty;
            }
            else
            {
                if (!data.IsValid)
                {
                    string msg = "";
                    foreach (string str3 in data.ErrorMsgs)
                    {
                        msg = msg + Formatter.FormatErrorMessage(str3);
                    }
                    ShowMsg(msg, false);
                    return;
                }
                siteSettings.SMSSender   = str;
                siteSettings.SMSSettings = Cryptographer.Encrypt(data.SettingsXml);
            }
            SettingsManager.Save(siteSettings);
            Page.Response.Redirect(Globals.ApplicationPath + "/Shopadmin/tools/MySendMessageTemplets.aspx");
        }
        // ...

        private string Encrypt(string item)
        {
            Console.WriteLine($">>>>>Encrypting '{ item }'.");
            Cryptographer cryptographer = new Cryptographer();
            string itemEncrypted = cryptographer.Encrypt(item);
            Console.WriteLine($"<<<<<Finished encrypting '{ itemEncrypted }'.");
            return itemEncrypted;
        }
        /// <summary>
        /// Returns true if the server response HMAC cannot be validated, indicating possible tampering.
        /// </summary>
        private async Task<bool> IsResponseTamperedAsync(ArtifactsContainer artifacts, Cryptographer crypto,
                                                        HttpResponseMessage response)
        {
            if (response.Headers.Contains(HawkConstants.ServerAuthorizationHeaderName))
            {
                string header = response.Headers.GetValues(HawkConstants.ServerAuthorizationHeaderName).FirstOrDefault();

                if (!String.IsNullOrWhiteSpace(header) &&
                                    header.Substring(0, HawkConstants.Scheme.Length).ToLower() == HawkConstants.Scheme)
                {
                    ArtifactsContainer serverAuthorizationArtifacts;
                    if (ArtifactsContainer.TryParse(header.Substring(HawkConstants.Scheme.Length + " ".Length),
                                                                                    out serverAuthorizationArtifacts))
                    {
                        // To validate response, ext, hash, and mac in the request artifacts must be
                        // replaced with the ones from the server.
                        artifacts.ApplicationSpecificData = serverAuthorizationArtifacts.ApplicationSpecificData;
                        artifacts.PayloadHash = serverAuthorizationArtifacts.PayloadHash;
                        artifacts.Mac = serverAuthorizationArtifacts.Mac;

                        bool isValid = await crypto.IsSignatureValidAsync(response.Content);

                        if(isValid)
                            this.WebApiSpecificData = serverAuthorizationArtifacts.ApplicationSpecificData;

                        return !isValid;
                    }
                }
            }

            return true; // Missing header means possible tampered response (to err on the side of caution).
        }
        /// <summary>
        /// Creates the HTTP Authorization header in hawk scheme.
        /// </summary>
        internal async Task CreateClientAuthorizationInternalAsync(HttpRequestMessage request, DateTime utcNow)
        {
            var credential = credentialFunc();
            this.artifacts = new ArtifactsContainer()
            {
                Id = credential.Id,
                Timestamp = utcNow.AddSeconds(HawkClient.CompensatorySeconds).ToUnixTime(),
                Nonce = NonceGenerator.Generate()
            };

            if (!String.IsNullOrWhiteSpace(this.ApplicationSpecificData))
                this.artifacts.ApplicationSpecificData = this.ApplicationSpecificData;

            var normalizedRequest = new NormalizedRequest(request, this.artifacts);
            this.crypto = new Cryptographer(normalizedRequest, this.artifacts, credential);

            // Sign the request
            await crypto.SignAsync(request.Content);

            request.Headers.Authorization = new AuthenticationHeaderValue(
                                                HawkConstants.Scheme,
                                                this.artifacts.ToAuthorizationHeaderParameter());
        }