Encrypted data stream ?

We have a bunch of data we want to send to a flash app on
Pocket PC, Windows, or Mac OS X over an encrypted channel. It's
binary data and we need to keep it secure.
Is the flash media server good for this ?
How do we get the data into the flash media server? Can it
connect to a socket?
Can a standalone player still access the media server using
an encrypted (SSL) channel?

You can connect to a FMS server via a SSL connection. This is
supported by default. You can send data over the encrypted line or
you even stream video over that encrypted line, which is ofcourse a
burden for server and client since they both need to encrypt and
decrypt the data. Besides that there is overhead on all data
transferred. For simple data transfer (like logins, names,
addresses etc) the SSL link will do fine.

Similar Messages

Streaming out de-encrypted data

Hi,
I have 2 classes "parsing.java" and "enc.java". "parsing.java" parses an xml file "INFO.xml", to get a few attribute values. I'm using SAX parsing.
However, "INFO.xml" is encrypted (password based encryption), and needs to be de-encrypted before it can be parsed. So "parsing.java" calls "enc.java" which de-encrypts the xml file, and creates the "readable xml file" say "rINFO.xml". Then the program reads the xml file.
parsing.java
String passphrase = "123456789";
String oFile = "C:\\rINFO.xml";
String iFile = "C:\\INFO.xml";
enc f = new enc();f.decFile(iFile,oFile,passphrase); //starts parsing reader.parse(oFile);....enc.java
public class enc
     public void decFile(String inputFile, String outputFile, String passphrase)
     InputStream in = new FileInputStream(inputFile);
OutputStream out = new FileOutputStream(outputFile);
byte[] inBytes = new byte[blockSize];
byte[] outBytes = new byte[outputSize];
while(more)
{            inLength = in.read(inBytes);
if(inLength == blockSize)
int outLength = cipher.update(inBytes, 0, blockSize, outBytes);                out.write(outBytes, 0, outLength);
else
more = false;
............. You should have noticed that I'm creating a new file "rINFO.xml" and sending the de-encrypted data to that file. However, I would like to stream out the de-encrypted contents using output stream to "parsing.java", and do not want to save it as a file, because the whole purpose of encryption is lost otherwise.
1)Is there a way of having the de-encrytped xml file in memory and then parsing that ?
2) or streaming the de-encrypted contents to "parsing.java", where I can use
reader.parse(new InputSource(new InputStreamReader (inStream)));
instead of
reader.parse(oFile);
any help appreciated .
-Sara

Have you looked at the Cipher stream classes?
http://java.sun.com/j2se/1.4.2/docs/api/javax/crypto/CipherInputStream.html
http://java.sun.com/j2se/1.4.2/docs/api/javax/crypto/CipherOutputStream.html

EFS, password change denies access to encrypted data

Hi,
Has anyone had the issue with admin changing users password in Console One
resulting in users not being able to access their encrypted data.
Laptop users are using EFS to encrypt their data.
These users have WinXPPro SP2 and we are running ZfD 6.5SP2.
I have found IR 1 for ZfD 6.5 SP2 which includes TID3003874 "Personal IE
certificates and EFS stop working after password change" however this does
not fix the issue.
Could someone explain in more detail what this fix does as I may have
misunderstood what this fix is.
Regards,
Eric.

I know this is an old thread, but I thought it would be best to those who
found it realized that the best method for addressing this issue may be
found here:
http://www.novell.com/support/viewCo...rnalId=3724689
However the MS article could still be useful for some.
Craig Wilson - MCNE, MCSE, CCNA
Novell Support Forums Volunteer Sysop
Novell does not officially monitor these forums.
Suggestions/Opinions/Statements made by me are solely my own.
These thoughts may not be shared by either Novell or any rational human.
"ghoskins" <[email protected]> wrote in message
news:[email protected]..
>
> I'm having the same problem. I ran acrosss this Microsoft KB and it
> seems to fix the issue. I'm not certain this is the best security
> practices, but it does work.
>
> 'User cannot gain access to certificate functionality after password
> change or when using a roaming profile'
> (http://support.microsoft.com/default...b;en-us;331333)
>
>
> --
> ghoskins
> ------------------------------------------------------------------------
> ghoskins's Profile: http://forums.novell.com/member.php?userid=12306
> View this thread: http://forums.novell.com/showthread.php?t=215857
>

What happens to encrypted data when the server is destroyed?

Backups to tape are encrypted with a certificate.
But what happens if the backup server is destroyed? Do I lose all the backup data on those tapes?
Can I backup the certificate or is it specific to that specific DPM server?
In the case of a catastrophic datacenter failure, where everything is lost except the tapes and the certificate, what is the process for recovering the encrypted data?

You can absolutely backup the certificates used for DPM encryption and you should store those somewhere safe (for example, burn to CD and put in a fireproof safe offsite somewhere secure in an encrypted file).
This section of TechNet describes the process: http://technet.microsoft.com/en-us/library/jj628058.aspx
If you had to recreate a DPM server to read the tapes then you'd need to the certificates in the correct certificate store on the DPM server, in addition you'd need to ensure you had the certificates for the certificate chain, if there is one, in the correct
locations in the cert store.
Once a cert expires, do not delete it from the DPM until all the tapes that have used that cert are no longer in use or have been overwritten.
The data would need to be imported through the recovery section in DPM but you'd be able to read and recover the data if the certs were present. No cert = no recovery.

SAP MII 14.0 SP5 Patch 11 - Error has occurred while processing data stream Dynamic Query role is not assigned to the Data Server

Hello All,
We are using a two tier architecture.
Our Corp server calls the refinery server.
Our CORP MII server uses user id abc_user to connect to the refinery data server.
The user id abc_user has the SAP_xMII_Dynamic_Query role.
The data server also has the checkbox for allow dynamic query enabled.
But we are still getting the following error
Error has occurred while processing data stream
Dynamic Query role is not assigned to the Data Server; Use query template
Once we add the SAP_xMII_Dynamic_Query role to the data server everything works fine. Is this feature by design ?
Thanks,
Kiran

Thanks Anushree !!
I thought that just adding the role to the user and enabling the dynamic query checkbox on the data server should work.
But we even needed to add the role to the data server.
Thanks,
Kiran

Can we use 0INFOPROV as a selection in Load from Data Stream

Hi,
We have implemented BW-SEM BPS and BCS (SEM-BW - 602 and BI 7 ) in our company.
We have two BPS cubes for Cost Center and Revenue Planning and we have Actuals Data staging cube, we use 0SEM_BCS_10 to load actuals.
We created a MultiProvider on BPS cubes and Staging cube as a Source Data Basis for BCS.
Issue:
When loading plan data or Actuals data into BCS (0BCS_C11) cube using Load from Data Stream method, we have performance issue, We automated load process in a Process Chain. Some times it take about 20 hrs for only Plan data load for 3 group currencies and then elimination tasks.
What I noticed is, (for example/) when loading Plan data, system is also reading Actuals Cube which is not required, there is no selection available in Mapping or selection tab where I can restrict data load from a particular cube.
I tried to add 0INFOPROV into databasis but then it doen't show up as selection option in the data collection tasks.
Is there a way where I can restrict data load into BCS using this load option and able to restrict on cube I will be reading data from ?
I know that there is a filter Badi available, but not sure how it works.
Thanks !!
Naveen Rao Kattela

Thanks Eugene,
We do have other characteristics like Value Type (10 = Actual and 20 = Plan) and Version (100 = USD Actual and 200 = USD Plan), but when I am loading data into BCS using Load from Data Stream method, the request goes to all the underlying cubes, which in my case are Planning cubes and Actual Cube, but I don't want request to goto Actual Cube when I am running only Plan load. I think its causing some performance issue.
For this reason I am thinking if I can use 0INFOPROV as we use in Bex queries to filter the InfoProvider so that the data load performance will improve.
I was able to to bring in 0INFOPROV into DataBasis by adding 0INFOPROV in the characteristics folder used by the Data Basis.
I am able to see this InfoObject Data Stream Fileds tab. I checked marked it to use it in the selection and regenerated the databasis.
I was expecting that now this field would be available for selection in data collection method, but its not.
So If its confirmed that there is no way we can use 0INFOPROV as a selection then I would suggest my client for a redesign of the DataBasis it self.
Thanks,
Naveen Rao Kattela

Encrypting Data on part of a file system.

A few months ago, using hints I found on the internet, I was able to use diskutil command line utililty to create an encrypted partition of the same sort as when turning FileVault on in Security Preferences. File Vault doe not appear to offer a way to choose some pargt of the disk storage such as an entire drive of a folder on a drive. I was able to do it and it worked. When I mount the disk partition to the system (usualy by plugging it in and turning it on), I'm asked for the security pass phrase or key to decrypt it. Once mounted with the key supplied, I can access it as any other mounted disk with the type of access restrictions that might be present on any disk.Since I want the data to be truly privatem U decline to put the key into the a known place such as the keychain. I don't want just anyone who has a log on to this iMac to b e able to read this data. I want them to need to enter a private key to mount the data.
My only problem with this is the hoops I needed to go through to do this. It is complicated and invovlves setting up special partitions for the purpose.
Searching Finder help for encrypting data it offered a solution for data on a removable drive. The stepsare very simple and easy to do:
   a) Mount the files to be encrypted if they are not online. They also need to be in a folder or even an entire partition.
    b) Open Disk Utility (GUI version)
    c)Choose File > New > Disk Image From Folder (or New-> Disk Image ffrom a Device).
    d) Select the folder or disk you want to encrypt.
    e) A save dialog will pop up. Select the name of the archive you wish to create and select a location. I choose a removable disk partition which has enouh space. Select Compressed if you wish. Then Select Encryption and choose the key size for encryption from the drop dwon. When you click Save, Disk Utility begins creating a disk image that is (possibly) compressed and probably encrypted. Once done, the files in the folder or partiion are hiddent behind the encryption. To get to them, you much open the DMG file and supply the password to unlock the encryption. You can save the key in the keychain if you are not worreid about who can get in. If you wish to restrict access to fewer people, keep the key secret and provide a recovery mechanism that is suitable for you need.
   f) One the archive is created, the disk partition containing it may b4 mounted on the system (if it is not there already) and by opening the dmg file you will be asked for the key. The system will validate that the key works and the encryption and comprewssion are working. The archive will be mounted as a virual disk. It can be accessed by any useer of that computer unless the file permissions get in the way. Mounting it only when the computer is being used by authorized people allow you to mount and dismount the archive for use during a limited time.
I have a couple of questions here. Is there an easier way to do this? Is this encryption as strong as that used in FileVault?

No. I don't know why it would not be, except it is easier for a person to leave the disk mounted where anyone can then see it. With FileVault forcing a password on wake from sleep, it will likely be encrypted if anyone found it.
I'm not sure why you went to the trouble you did before, except the instructions might have been to create an encrypted partition as opposed to creating the disk image. Disk images have been around for at least a decade.
If you plan on backing up the image with Time Machine, use a sparse bundle disk image as it will write the data to small files, called stripes. Only the stripes that change get backed up instead of the entire image.

What does the Merge Data Stream processor do when there are multiple input streams to it from the same reader?

Hi,
I have a process with a reader of master data that outputs 5 records that feeds simultaneously into 3 different lookup and return processors.
Each lookup and return processor brings some data back from a detail table. There can be multiple details so I follow each lookup processor with a split records from array processor. Hence I end up with 3 'streams' of data. Stream 1 has 8 records, stream 2 has 5 records and stream 3 has 6 records.
I join all these streams to a Merge Data Streams processor.
I end up with 9 records so although the help for the Merge Data Streams processor says 'Merge Data Streams does not perform any transformation, matching, or merging of records' there is clearly some merging going on.
What is the behaviour of the merge data streams processor in this scenario?
I have added attributes and flags into each of the streams. How many records should I see and what values should the added attributes/flags have (some records show attributes/flags from all 3 streams whereas others show just those attributes/flags from one stream).
I have developed a test case simply to understand what the processor is doing but it's not obvious and furthermore it's probably unwise to develop EDQ processes where the processor behaviour is not documented and guaranteed to remain consistent. What I am trying to achieve is to bring all of a person's (the master data) various details (assignments, employers, etc.) together so we can check the data (some rules require data from multiple details).
Thanks, Nik

Cheers Mike - and for the explanation of the terms.
I think I understand now how it's supposed to work.
What I'm finding however is that when I set a flag to Y at the beginning of a path (that includes a lookup and return and then split records from array processor) that flag is showing no (i.e. an empty) value in SOME of the records shown in the subsequent MDS processor (it's fine the very last split processor before we get to the MDS but then again there are fewer records in that split processor than the MDS).
In my case there are obviously more records in the MDS processor than there were in the original reader (because the lookup and returns are configured to have unlimited maximum matches). As mentioned, the different paths return different numbers of records before being combined in the MDS. Say a reader has 5 records and path 1 returns 8 records in total including a path-specific flag (flag1, set to Y) but path 2 (that again adds its own path-specific flag (flag2, set to Y) returns just 5 records (since nothing was added from the lookups) are you saying that flag2 would show as 'Y' for all 8 records shown in the MDS?
Hopefully you would be able to see what I mean if you try to create a process like the one I've described (or I can upload a package).
Re. the purpose of the separate paths approach it is simply to allow the visualisation ('showing the working' as Neil puts it) of the different checks being carried out by the process.
This is considered one of the benefits of the tool over writing SQL queries (with outer joins, query criteria, etc.).
Also, as mentioned I was following an example that Neil put together for us to ensure that we are doing things in a 'proper' and supported way.
If we put all the lookups, etc. for all the checks into one datastream then it no longer becomes so understandable and the value of joining processors in a process over simply writing SQL becomes questionable; arguably the EDQ process in fact becomes less easy to understand than simply writing SQL.
Also, to go down this route I will need to revise the (what was previously substantially working until I revised it) processes that I have already developed.
Thanks, Nik

** How to encrypt data when saving it in DB directly?

Hi All,
I want a method to encrypt data in the database when saving it directly
that is when any one enabled to see the data he will see it encrypted!

Hi..
What is the oracle database version???
As you want the users to see the encypted data, the best option is use DBMS_CRYPTO to encrypt the data.
[http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14258/d_crypto.htm]
[http://www.oracle-base.com/articles/10g/DatabaseSecurityEnhancements10g.php]
HTH
Anand
Edited by: Anand... on Oct 19, 2009 2:11 PM

Create a continuous data stream from C++, and read it in LabView

Hello all.
I'm working on a project which involves connecting to a motion tracker and reading position and orientation data from it in realtime. The code to get the data is in c++, so I decided that the best way to do this would be to create a c++ DLL file which contains all the necessary functions to first connect to the device and read the data from it, and use the Call Library Function node to feed this data into Labview.
I'm having trouble though, since ideally I would like a continuous stream of data from the c++ code into Labview, and I'm not sure how to achieve this. Putting the call library function node in a while loop seems like an obvious solution, but if I do it this way I would have to reconnect to the device every time I get the data, which is quite a bit too slow.
So my question is, if I created c++ function which created a data stream, could I read this into Labview without having to continually call a function? I'd prefer to only have to call a function once, and then read the data stream until a stop command is given.
I'm using Labview 2010, version 10.0.
Apologies if the question is poorly phrased, many thanks for your help.
Dave
Solved!
Go to Solution.

dr8086 wrote:
This method sounds like an excellent suggestion, but I do have a few questions where I dont think I've understood fully.
From what I understand the basic premise is to use one call library function node to access a DLL which creates an instance of the device object, and passes a pointer too it into labview. Then a seperate call library function node would pass this pointer to another DLL which could access the device object, update it and read the data. This part could be in a while loop and carry on reading the data until a stop command is given.
That's it. I'm including some skeleton code as an example. I'm also including the code because I don't know how much you have experience with multi threading, so I'm showing how you'd have to use critical sections to guard the interactions between threads so that they don't lead to issues.
// exported function to access the devices
extern "C" __declspec(dllexport) int __stdcall init(uintptr_t *ptrOut)
*ptrOut= (uintptr_t)new CDevice();
return 0;
extern "C" __declspec(dllexport) int __stdcall get_data(uintptr_t ptr, double vals[], int size)
return ((CDevice*)ptr)->get_data(vals, size);
extern "C" __declspec(dllexport) int __stdcall close(uintptr_t ptr, double last_vals[], int size)
int r= ((CDevice*)ptr)->close();
((CDevice*)ptr)->get_data(last_vals, size);
delete (CDevice*)ptr;
return r;
// h file
// Represents a device
class CDevice
public:
virtual ~CDevice();
int init();
int get_data(double vals[], int size);
int close();
// only called by new thread
int ThreadProc();
private:
CRITICAL_SECTION rBufferSafe; // Needed for thread saftey
vhtTrackerEmulator *tracker;
HANDLE hThread;
double buffer[500];
int buffer_used;
bool done; // this HAS to be protected by critical section since 2 threads access it. Use a get/set method with critical sections inside
//cpp file
DWORD WINAPI DeviceProc(LPVOID lpParam)
((CDevice*)lpParam)->ThreadProc(); // Call the function to do the work
return 0;
CDevice::~CDevice()
DeleteCriticalSection(&rBufferSafe);
int CDevice::init()
tracker = new vhtTrackerEmulator();
InitializeCriticalSection(&rBufferSafe);
buffer_used= 0;
done= false;
hThread = CreateThread(NULL, 0, DeviceProc, this, 0, NULL); // this thread will now be saving data to an internal buffer
return 0;
int CDevice::get_data(double vals[], int size)
EnterCriticalSection(&rBufferSafe);
if (vals) // provides a way to get the current used buffer size
memcpy(vals, buffer, min(size, buffer_used));
int len= min(size, buffer_used);
buffer_used= 0; // Whatever wasn't read is erased
} else // just return the buffer size
int len= buffer_used;
LeaveCriticalSection(&rBufferSafe);
return len;
int CDevice::close()
done= true;
WaitForSingleObject(hThread, INFINITE); // handle timeouts etc.
delete tracker;
tracker= NULL;
return 0;
int CDevice::ThreadProc()
while (!bdone)
tracker->update();
EnterCriticalSection(&rBufferSafe);
if (buffer_used<500)
buffer[buffer_used++]= tracker->getRawData(0);
LeaveCriticalSection(&rBufferSafe);
Sleep(100);
return 0;
dr8086 wrote:
My main concern is that the object may go out of memory or be deallocated, since it wouldnt be held in any namespace or anything.
Since you create the object with new, the object won't expire until either the dll is unloaded or the process (LabVIEW) closes. So the object will stay valid between dll calls provided LabVIEW didn't unload the dll (which it does if the VIs are closed). When that happens, I'm not exactly sure what happens to live objects (i.e. if you forgot to call close), I imagine the system reclaims the memory but the device might still be open.
What I do to make sure that everything gets closed when the dll unloads before I could call close and delete the object is to everytime I create a new object in the dll I add it to a list, when the dll unloads, if the object is still on the list I delete it.
dr8086 wrote:
I also have a more general programming question about the purpose of the buffer. Would the buffer basically be a big table of position values, which are stored until they can be read into the rest of the VI?
Yes, see the example code.
However, depending on the frequency with which you need to collect data from the device you might not need this buffer at all. I.e. if you collect a sample about every 100ms then you could remove all threading and buffer related functions and instead read the data from the read function itself like this:
double CDevice::get_data()
tracker->update();
return tracker->getRawData(0);
Because you'd only need a buffer and a seperate thread if you collect data at a high frequency and you cannot lose any data.
Matt

Validation on Inventory and Supplier Data Stream

Hi Experts Team,
My client wants validation on Inventory and Supplier Data Stream. When I am trying to create method it shows only total record and documents in data stream field.
How I can get the above two stream in method.
Can any one suggest me.

Thanks Dan for your speedy reply
I will do validation according to documet type
Thanks & Regards
Madhu

Encrypt/decrypt streams with same password

Hi all!
I'would like to know if I can encrypt/decrypt streams using key's which are hardwired in my application. By a hardwired key I understand a key which is generated using the same seed; practically I don't keep the key, but the minimum info to regenerate it.
Is this possible and if yes, how? Where can I find some more info about regenerating a key?
Stefan.
PS: I'm a newbie in field of cryptography, so...

You can use password-based encryption. See an example
of such a thing in:
http://javaalmanac.com/egs/javax.crypto/PassKey.html
Erm, what sort of encryption isn't password-based ?

Conversion of a binary data stream to decimal numbers

Hi
I am having great difficult working out how to convert my binary data stream to decimal numbers.
The data I am reading back is in the format of a binary string, starting with the Most Significant Bit (MSB) of the first word, then the corresponding Least Significant Bit (LSB), where a word is two bytes long. A carriage return indicates message termination. The return message starts with ‘bin,’ followed by the number of bytes requested. No delimiters are used to separate the data, but a carriage return is appended onto the end of the data.
bin,<first word msb><first word lsb>...<last word lsb><CR>
e.g. bin,$ro¬z1;@*...etc
Does anybody know of any examaple vi that can help me convert this data from binary to decimal numbers?
Many Thanks
Ash

Hi Ashley,
after getting the string you can strip the first 4 characters. After this try a typecasting to array of U16. If the numbers are not correct, you can add a swap bytes operation to the resulting array.
Message Edited by GerdW on 09-13-2006 02:46 PM
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome
Attachments:
Convert.png ‏2 KB

How to handle HTTP-POST encrypted data for ECC Using proxy or RFC

I have a scenario HTTP-POST ->PI->ECC.sender is HTTP Post send encrypted data i need to handle the data and stored in to SAP ECC with out decrypt using PI .what should i take for receiver can i use inbound proxy or RFC and how can handle the encrypted data for decrypt.
Regards
Ravi

1. my sender is HTTP POST . what should i configure in sender communication channel in SAP PI .like SOAP or HTTP .What are the parameters i need to pass .
>>>
If you are on PI 7.3 and above, configure the HTTP AAE adapter - Configuring the Java HTTP Adapter on the Sender Channel - Advanced Adapter Engine - SAP Library
2.while using inbound proxy for encrypted data i need store the data in to table , the same proxy can i call another outbound service for decrypt same data.
>>>>
Yes you can always a proxy within a proxy.

Data Streaming error in BPM workspace

Hi All
Developed a BPM Process and ADF form with BPM 11g suite and deployed to Oracle weblogic Server 10.3. while we are fetching the data from DB into ADF form in the same Process we are getting the small amount of data but while fetching the large volume of data to that ADF form we are getting the popup like "Data streaming",
Could you please guide me to resolve this issue.
Thank you
Balaji J

Please paste the exact error stack along with your Jdev version for us to help you.

Encrypted data stream ?

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