public static byte[] EncryptSEBSettingsWithCredentials(string settingsPassword, bool passwordIsHash, X509Certificate2 certificateRef, SEBSettings.sebConfigPurposes configPurpose, bool forEditing)
{
byte[] bytes = Encoding.UTF8.GetBytes(Plist.writeXml((object)SEBSettings.settingsCurrent).Replace("<array />", "<array></array>").Replace("<dict />", "<dict></dict>").Replace("<data />", "<data></data>"));
string password = (string)null;
if (string.IsNullOrEmpty(settingsPassword) && configPurpose == SEBSettings.sebConfigPurposes.sebConfigPurposeConfiguringClient)
{
password = "";
}
else if (string.IsNullOrEmpty(settingsPassword) && certificateRef == null)
{
if (SEBMessageBox.Show(SEBUIStrings.noEncryptionChosen, SEBUIStrings.noEncryptionChosenSaveUnencrypted, MessageBoxIcon.Question, MessageBoxButtons.YesNo, forEditing) == DialogResult.Yes)
{
return(bytes);
}
return((byte[])null);
}
byte[] data = GZipByte.Compress(bytes);
if (!string.IsNullOrEmpty(settingsPassword))
{
password = settingsPassword;
}
byte[] numArray1;
if (password != null)
{
numArray1 = SEBConfigFileManager.EncryptDataUsingPassword(data, password, passwordIsHash, configPurpose);
}
else
{
byte[] numArray2 = new byte[data.Length + 4];
Buffer.BlockCopy((Array)Encoding.UTF8.GetBytes("plnd"), 0, (Array)numArray2, 0, 4);
Buffer.BlockCopy((Array)data, 0, (Array)numArray2, 4, data.Length);
numArray1 = (byte[])numArray2.Clone();
}
if (certificateRef != null)
{
numArray1 = SEBConfigFileManager.EncryptDataUsingIdentity(numArray1, certificateRef);
}
return(GZipByte.Compress(numArray1));
}
public static string GetPrefixStringFromData(ref byte[] data)
{
return(Encoding.UTF8.GetString(SEBConfigFileManager.GetPrefixDataFromData(ref data, 4)));
}
private static byte[] DecryptDataWithPublicKeyHashPrefix(byte[] sebData, bool forEditing, ref X509Certificate2 sebFileCertificateRef)
{
X509Certificate2 certificateFromStore = SEBProtectionController.GetCertificateFromStore(SEBConfigFileManager.GetPrefixDataFromData(ref sebData, 20));
if (certificateFromStore == null)
{
int num = (int)SEBMessageBox.Show(SEBUIStrings.errorDecryptingSettings, SEBUIStrings.certificateNotFoundInStore, MessageBoxIcon.Hand, MessageBoxButtons.OK, forEditing);
return((byte[])null);
}
if (forEditing)
{
sebFileCertificateRef = certificateFromStore;
}
sebData = SEBProtectionController.DecryptDataWithCertificate(sebData, certificateFromStore);
return(sebData);
}
private static Dictionary <string, object> GetPreferencesDictFromConfigData(byte[] sebData, bool forEditing)
{
Dictionary <string, object> dictionary;
try
{
dictionary = (Dictionary <string, object>)Plist.readPlist(sebData);
}
catch (Exception ex)
{
int num = (int)SEBMessageBox.Show(SEBUIStrings.loadingSettingsFailed, SEBUIStrings.loadingSettingsFailedReason, MessageBoxIcon.Hand, MessageBoxButtons.OK, forEditing);
Console.WriteLine(ex.Message);
return((Dictionary <string, object>)null);
}
if (forEditing)
{
string str = (string)SEBSettings.valueForDictionaryKey(dictionary, "hashedAdminPassword");
if (!string.IsNullOrEmpty(str) && (string.Compare((string)SEBSettings.valueForDictionaryKey(SEBSettings.settingsCurrent, "hashedAdminPassword") ?? "", str, StringComparison.OrdinalIgnoreCase) != 0 && !SEBConfigFileManager.askForPasswordAndCompareToHashedPassword(str, forEditing)))
{
return((Dictionary <string, object>)null);
}
}
return(dictionary);
}
public static bool StoreDecryptedSEBSettings(byte[] sebData)
{
string sebFilePassword = (string)null;
bool passwordIsHash = false;
X509Certificate2 sebFileCertificateRef = (X509Certificate2)null;
Dictionary <string, object> settingsDict = SEBConfigFileManager.DecryptSEBSettings(sebData, false, ref sebFilePassword, ref passwordIsHash, ref sebFileCertificateRef);
if (settingsDict == null)
{
return(false);
}
Logger.AddInformation("Reconfiguring", (object)null, (Exception)null, (string)null);
SEBClientInfo.SebWindowsClientForm.closeSebClient = false;
Logger.AddInformation("Attempting to CloseSEBForm for reconfiguration", (object)null, (Exception)null, (string)null);
SEBClientInfo.SebWindowsClientForm.CloseSEBForm();
Logger.AddInformation("Succesfully CloseSEBForm for reconfiguration", (object)null, (Exception)null, (string)null);
SEBClientInfo.SebWindowsClientForm.closeSebClient = true;
SEBClientInfo.CreateNewDesktopOldValue = (bool)SEBSettings.valueForDictionaryKey(SEBSettings.settingsCurrent, "createNewDesktop");
if ((int)settingsDict["sebConfigPurpose"] == 0)
{
Logger.AddInformation("Reconfiguring to start an exam", (object)null, (Exception)null, (string)null);
Logger.AddInformation("Attempting to StoreSebClientSettings", (object)null, (Exception)null, (string)null);
SEBSettings.StoreSebClientSettings(settingsDict);
Logger.AddInformation("Successfully StoreSebClientSettings", (object)null, (Exception)null, (string)null);
SEBClientInfo.examMode = true;
SEBClientInfo.InitializeLogger();
if (SEBClientInfo.CreateNewDesktopOldValue != (bool)SEBSettings.valueForDictionaryKey(SEBSettings.settingsCurrent, "createNewDesktop"))
{
if (!SEBClientInfo.CreateNewDesktopOldValue)
{
int num1 = (int)SEBMessageBox.Show(SEBUIStrings.settingsRequireNewDesktop, SEBUIStrings.settingsRequireNewDesktopReason, MessageBoxIcon.Hand, MessageBoxButtons.OK, false);
}
else
{
int num2 = (int)SEBMessageBox.Show(SEBUIStrings.settingsRequireNotNewDesktop, SEBUIStrings.settingsRequireNotNewDesktopReason, MessageBoxIcon.Hand, MessageBoxButtons.OK, false);
}
SEBClientInfo.SebWindowsClientForm.ExitApplication(true);
}
Logger.AddInformation("Attemting to InitSEBDesktop for reconfiguration", (object)null, (Exception)null, (string)null);
if (!SebWindowsClientMain.InitSEBDesktop())
{
return(false);
}
Logger.AddInformation("Sucessfully InitSEBDesktop for reconfiguration", (object)null, (Exception)null, (string)null);
Logger.AddInformation("Attempting to OpenSEBForm for reconfiguration", (object)null, (Exception)null, (string)null);
int num = SEBClientInfo.SebWindowsClientForm.OpenSEBForm() ? 1 : 0;
Logger.AddInformation("Successfully OpenSEBForm for reconfiguration", (object)null, (Exception)null, (string)null);
return(num != 0);
}
Logger.AddInformation("Reconfiguring to configure a client", (object)null, (Exception)null, (string)null);
List <object> objectList = (List <object>)settingsDict["embeddedCertificates"];
for (int index = objectList.Count - 1; index >= 0; --index)
{
Dictionary <string, object> dictionary = (Dictionary <string, object>)objectList[index];
if ((int)dictionary["type"] == 1)
{
SEBProtectionController.StoreCertificateIntoStore((byte[])dictionary["certificateData"]);
}
objectList.RemoveAt(index);
}
SEBSettings.StoreSebClientSettings(settingsDict);
SEBClientInfo.InitializeLogger();
SEBSettings.WriteSebConfigurationFile(SEBClientInfo.SebClientSettingsAppDataFile, "", false, (X509Certificate2)null, SEBSettings.sebConfigPurposes.sebConfigPurposeConfiguringClient, false);
if (!SebWindowsClientMain.InitSEBDesktop() || !SEBClientInfo.SebWindowsClientForm.OpenSEBForm())
{
return(false);
}
if (SEBClientInfo.CreateNewDesktopOldValue != (bool)SEBSettings.valueForDictionaryKey(SEBSettings.settingsCurrent, "createNewDesktop"))
{
int num = (int)SEBMessageBox.Show(SEBUIStrings.sebReconfiguredRestartNeeded, SEBUIStrings.sebReconfiguredRestartNeededReason, MessageBoxIcon.Exclamation, MessageBoxButtons.OK, false);
SEBClientInfo.SebWindowsClientForm.ExitApplication(true);
}
if (SEBMessageBox.Show(SEBUIStrings.sebReconfigured, SEBUIStrings.sebReconfiguredQuestion, MessageBoxIcon.Question, MessageBoxButtons.YesNo, false) == DialogResult.No)
{
SEBClientInfo.SebWindowsClientForm.ExitApplication(true);
}
return(true);
}
private static Dictionary <string, object> DecryptDataWithPasswordForConfiguringClient(byte[] sebData, bool forEditing, ref string sebFilePassword, ref bool passwordIsHash)
{
passwordIsHash = false;
string upper = ((string)SEBSettings.valueForDictionaryKey(SEBSettings.settingsCurrent, "hashedAdminPassword") ?? "").ToUpper();
byte[] input1 = SEBProtectionController.DecryptDataWithPassword(sebData, upper);
string str1;
if (input1 == null)
{
input1 = SEBProtectionController.DecryptDataWithPassword(sebData, "");
if (input1 == null)
{
int num1 = 5;
str1 = (string)null;
string passwordRequestText = SEBUIStrings.enterEncryptionPassword;
string input2;
do
{
--num1;
input2 = ThreadedDialog.ShowPasswordDialogForm(SEBUIStrings.reconfiguringLocalSettings, passwordRequestText);
if (input2 == null)
{
return((Dictionary <string, object>)null);
}
string passwordHash = SEBProtectionController.ComputePasswordHash(input2);
input1 = SEBProtectionController.DecryptDataWithPassword(sebData, passwordHash);
passwordRequestText = SEBUIStrings.enterEncryptionPasswordAgain;
}while (input1 == null && num1 > 0);
if (input1 == null)
{
int num2 = (int)SEBMessageBox.Show(SEBUIStrings.reconfiguringLocalSettingsFailed, SEBUIStrings.reconfiguringLocalSettingsFailedWrongPassword, MessageBoxIcon.Hand, MessageBoxButtons.OK, forEditing);
return((Dictionary <string, object>)null);
}
if (forEditing)
{
sebFilePassword = input2;
}
}
}
else
{
sebFilePassword = upper;
passwordIsHash = true;
}
byte[] data = GZipByte.Decompress(input1);
Dictionary <string, object> dictionary;
try
{
dictionary = (Dictionary <string, object>)Plist.readPlist(data);
}
catch (Exception ex)
{
int num = (int)SEBMessageBox.Show(SEBUIStrings.loadingSettingsFailed, SEBUIStrings.loadingSettingsFailedReason, MessageBoxIcon.Hand, MessageBoxButtons.OK, forEditing);
Console.WriteLine(ex.Message);
return((Dictionary <string, object>)null);
}
string str2 = (string)SEBSettings.valueForDictionaryKey(dictionary, "hashedAdminPassword") ?? "";
if (string.Compare(upper, str2, StringComparison.OrdinalIgnoreCase) != 0)
{
if (forEditing)
{
if (!SEBConfigFileManager.askForPasswordAndCompareToHashedPassword(str2, forEditing))
{
return((Dictionary <string, object>)null);
}
}
else if (!passwordIsHash && upper.Length > 0)
{
int num1 = 5;
str1 = (string)null;
string passwordRequestText = SEBUIStrings.enterCurrentAdminPwdForReconfiguring;
bool flag;
do
{
--num1;
string input2 = ThreadedDialog.ShowPasswordDialogForm(SEBUIStrings.reconfiguringLocalSettings, passwordRequestText);
if (input2 == null)
{
return((Dictionary <string, object>)null);
}
flag = string.Compare(input2.Length != 0 ? SEBProtectionController.ComputePasswordHash(input2) : "", upper, StringComparison.OrdinalIgnoreCase) == 0;
passwordRequestText = SEBUIStrings.enterCurrentAdminPwdForReconfiguringAgain;
}while (!flag && num1 > 0);
if (!flag)
{
int num2 = (int)SEBMessageBox.Show(SEBUIStrings.reconfiguringLocalSettingsFailed, SEBUIStrings.reconfiguringLocalSettingsFailedWrongCurrentAdminPwd, MessageBoxIcon.Hand, MessageBoxButtons.OK, forEditing);
return((Dictionary <string, object>)null);
}
}
}
dictionary["sebConfigPurpose"] = (object)1;
return(dictionary);
}
public static Dictionary <string, object> DecryptSEBSettings(byte[] sebData, bool forEditing, ref string sebFilePassword, ref bool passwordIsHash, ref X509Certificate2 sebFileCertificateRef)
{
byte[] numArray1 = GZipByte.Decompress(sebData);
if (numArray1 != null)
{
sebData = numArray1;
}
byte[] numArray2 = sebData.Clone() as byte[];
string prefixStringFromData = SEBConfigFileManager.GetPrefixStringFromData(ref sebData);
if (prefixStringFromData.CompareTo("pkhs") == 0)
{
sebData = SEBConfigFileManager.DecryptDataWithPublicKeyHashPrefix(sebData, forEditing, ref sebFileCertificateRef);
if (sebData == null)
{
return((Dictionary <string, object>)null);
}
prefixStringFromData = SEBConfigFileManager.GetPrefixStringFromData(ref sebData);
}
if (prefixStringFromData.CompareTo("pswd") == 0)
{
string passwordRequestText = SEBUIStrings.enterPassword;
int num1 = 5;
string passphrase;
byte[] numArray3;
do
{
--num1;
passphrase = ThreadedDialog.ShowPasswordDialogForm(SEBUIStrings.loadingSettings, passwordRequestText);
if (passphrase == null)
{
return((Dictionary <string, object>)null);
}
numArray3 = SEBProtectionController.DecryptDataWithPassword(sebData, passphrase);
passwordRequestText = SEBUIStrings.enterPasswordAgain;
}while (numArray3 == null && num1 > 0);
if (numArray3 == null)
{
int num2 = (int)SEBMessageBox.Show(SEBUIStrings.decryptingSettingsFailed, SEBUIStrings.decryptingSettingsFailedReason, MessageBoxIcon.Hand, MessageBoxButtons.OK, forEditing);
return((Dictionary <string, object>)null);
}
sebData = numArray3;
if (forEditing)
{
sebFilePassword = passphrase;
}
}
else
{
if (prefixStringFromData.CompareTo("pwcc") == 0)
{
return(SEBConfigFileManager.DecryptDataWithPasswordForConfiguringClient(sebData, forEditing, ref sebFilePassword, ref passwordIsHash));
}
if (prefixStringFromData.CompareTo("plnd") != 0)
{
if (prefixStringFromData.CompareTo("<?xm") == 0)
{
sebData = numArray2;
}
else
{
int num = (int)SEBMessageBox.Show(SEBUIStrings.settingsNotUsable, SEBUIStrings.settingsNotUsableReason, MessageBoxIcon.Hand, MessageBoxButtons.OK, forEditing);
return((Dictionary <string, object>)null);
}
}
}
if (prefixStringFromData.CompareTo("<?xm") != 0)
{
sebData = GZipByte.Decompress(sebData);
}
Dictionary <string, object> dictFromConfigData = SEBConfigFileManager.GetPreferencesDictFromConfigData(sebData, forEditing);
if (dictFromConfigData == null)
{
return((Dictionary <string, object>)null);
}
dictFromConfigData["sebConfigPurpose"] = (object)0;
return(dictFromConfigData);
}
