private static string DeprecatedDecryptValue(string value)
{
string[] array = value.Split(new char[]
{
':'
});
if (array.Length < 2)
{
ObscuredPrefs.SavesTampered();
return(string.Empty);
}
string text = array[0];
string a = array[1];
byte[] array2;
try
{
array2 = Convert.FromBase64String(text);
}
catch
{
ObscuredPrefs.SavesTampered();
return(string.Empty);
}
string @string = Encoding.UTF8.GetString(array2, 0, array2.Length);
string result = ObscuredString.EncryptDecrypt(@string, ObscuredPrefs.cryptoKey);
if (array.Length == 3)
{
if (a != ObscuredPrefs.DeprecatedCalculateChecksum(text + ObscuredPrefs.DeprecatedDeviceId))
{
ObscuredPrefs.SavesTampered();
}
}
else if (array.Length == 2)
{
if (a != ObscuredPrefs.DeprecatedCalculateChecksum(text))
{
ObscuredPrefs.SavesTampered();
}
}
else
{
ObscuredPrefs.SavesTampered();
}
if (ObscuredPrefs.lockToDevice != ObscuredPrefs.DeviceLockLevel.None && !ObscuredPrefs.emergencyMode)
{
if (array.Length >= 3)
{
string a2 = array[2];
if (a2 != ObscuredPrefs.DeprecatedDeviceId)
{
if (!ObscuredPrefs.readForeignSaves)
{
result = string.Empty;
}
ObscuredPrefs.PossibleForeignSavesDetected();
}
}
else if (ObscuredPrefs.lockToDevice == ObscuredPrefs.DeviceLockLevel.Strict)
{
if (!ObscuredPrefs.readForeignSaves)
{
result = string.Empty;
}
ObscuredPrefs.PossibleForeignSavesDetected();
}
else if (a != ObscuredPrefs.DeprecatedCalculateChecksum(text))
{
if (!ObscuredPrefs.readForeignSaves)
{
result = string.Empty;
}
ObscuredPrefs.PossibleForeignSavesDetected();
}
}
return(result);
}
private static string DeprecatedDecryptValue(string value)
{
string[] strArray = value.Split(':');
if (strArray.Length < 2)
{
ObscuredPrefs.SavesTampered();
return(string.Empty);
}
string str1 = strArray[0];
string str2 = strArray[1];
byte[] bytes;
try
{
bytes = Convert.FromBase64String(str1);
}
catch
{
ObscuredPrefs.SavesTampered();
return(string.Empty);
}
string str3 = ObscuredString.EncryptDecrypt(Encoding.UTF8.GetString(bytes, 0, bytes.Length), ObscuredPrefs.encryptionKey);
if (strArray.Length == 3)
{
if (str2 != ObscuredPrefs.DeprecatedCalculateChecksum(str1 + ObscuredPrefs.DeprecatedDeviceId))
{
ObscuredPrefs.SavesTampered();
}
}
else if (strArray.Length == 2)
{
if (str2 != ObscuredPrefs.DeprecatedCalculateChecksum(str1))
{
ObscuredPrefs.SavesTampered();
}
}
else
{
ObscuredPrefs.SavesTampered();
}
if (ObscuredPrefs.lockToDevice != ObscuredPrefs.DeviceLockLevel.None && !ObscuredPrefs.emergencyMode)
{
if (strArray.Length >= 3)
{
if (strArray[2] != ObscuredPrefs.DeprecatedDeviceId)
{
if (!ObscuredPrefs.readForeignSaves)
{
str3 = string.Empty;
}
ObscuredPrefs.PossibleForeignSavesDetected();
}
}
else if (ObscuredPrefs.lockToDevice == ObscuredPrefs.DeviceLockLevel.Strict)
{
if (!ObscuredPrefs.readForeignSaves)
{
str3 = string.Empty;
}
ObscuredPrefs.PossibleForeignSavesDetected();
}
else if (str2 != ObscuredPrefs.DeprecatedCalculateChecksum(str1))
{
if (!ObscuredPrefs.readForeignSaves)
{
str3 = string.Empty;
}
ObscuredPrefs.PossibleForeignSavesDetected();
}
}
return(str3);
}
