Does LabVIEW contain any encryption function?

[Alan Cheuk]

Does LabVIEW contain any encryption function?

[tst]

No.
You can use VIs from the Data Manipulation pallette (in the Advanced pallette) like flatten to string for a basic conversion into unreadable strings or you could write your own functions.
I haven't tried them, but you might want to check out VI security tools:
http://www.jyestudio.com/visecurity//tools.shtml

[tst]

Also, searching for "encrypt" or "encryption" on the site yields quite a few results.
I suggest you try it.

[Brett_B.]

Alan,
A datalog file is a LabVIEW specific data file type. No other software program can read a datalog file because of the proprietary structure. In addition, the "reader" of the data must know exactly how the data was placed into the datalog file in order to retrieve the information; almost like a key.

There are several example programs on datalog files...goto HELP>>Find Examples and search for datalog.

Regards,
-Brett

[Kyle R]

In the developer zone, there is a very good example of the blowfish algorithm. Also, there is a well-written MD5 hash calculator.

Kyle R
NI R&D

[Enrique]

Hi Alan;

You can try my cryptographic library, Crypto-G: www.visecurity.com/cryptg.shtml

Also, I am always around here at the NI Discussion Forums and you can always write me an e-mail for questions or comments.

Regards;
Enrique

[alysko]

Hello,

The file format has nothing to do with encryption. Give any low-level or good programmer few days, and even very complex file formats can be understood. Encryption is intended for securing information against well-trained profesionals with large amounts of money, time and resources.

I would also like to have a set of encryption/decryption functoins in LabView.

Regards,

Albert

[LV_Pro]

Albert,
    The method of obscuring information is always dependent on what you are trying to hide and from whom you are trying to hide it. If it is merely to prevent users from changing test settings of a test station, an obscure file format is possibly enough. If it is to conceal something of more importance then more sophisticated methods are obviously needed. But there is probably no method, at this time, that absolutely guarantees concealment, as indicated by some recent demonstrations of decryption performed using distributed computing, not to mention the unmentioned abilities of governmental organizations. As mentioned in the previous posts, there are algorithms available (the blowfish algorithm for one) that can be found using "encrypt" and "LabVIEW" on this (the National Instruments') site.

P.M.

[Khalid]

Yet another option:  If you're familiar with using .NET in LabVIEW (or would like to give it a shot), you could use the 'system.security.cryptography' .NET class library.  It has Rijndael, RSA, etc., implemntations among others.  You will have to add reference to mscorlib.dll in LabVIEW to see this. 

-Khalid

[BJD1613]

I have done some research on this and actually implemented the RSA Public/Private key cryptography standard using dll calls to the openssl libraries.  So it can be done.  This is the open ssl website. http://www.openssl.org/  Also I have used the crypto G toolkit for hashing and recommend it.  Hope this helps