10-19-2010 01:27 PM
Hi ,
I want to get back the original signal using cryptography, Can any one explain me about this and what blocks are needed for that.
Where can i found about cryptography. I need few examples of cryptograhy algorithms
10-26-2010 08:49 AM
I don't think it is feasible to unencrypt your signal unless you know the algorithm and key that was used. That is the whole point of encryption.
Here's a good example of the Blowfish algorithm, though: http://zone.ni.com/devzone/cda/epd/p/id/3473
10-26-2010 09:03 AM
Just take a look at wikipedia, e.g. here is the Blowfish.
A LabVIEW code can be downloaded as stated above.
For the implementation of other algorithms, check one of the many Open Source tools for cryptography (gnupgp, truecrypt). I guess that some of these tools take reusable libraries for this, so you could call them from LV as dll's.
Felix
10-26-2010 09:20 AM
Previously asked as "inverse of hash function".