Re: [Discuss-gnuradio] descrambling radio waves

[Patrik Tast]

Most likely it is a 64bit PIN Seed that your key will contain.
If you do not know it then data was not ment for "your eyes".

> Descrambling doesn't necessarily mean hacking for malicious purposes,
> it can also mean learning existing systems to design better/more
> efficient ones for the future.
If you don't know the key then you are in the wrong group.

All the best,
Patrik


----- Original Message ----- 
From: "Vikas N Kumar" <address@hidden>
To: "Patrik Tast" <address@hidden>
Cc: <address@hidden>
Sent: Tuesday, June 19, 2012 17:21
Subject: Re: [Discuss-gnuradio] descrambling radio waves


> On Tue, Jun 19, 2012 at 10:01 AM, Patrik Tast <address@hidden> 
> wrote:
> > If the signal is crypted then it was not ment for you unless you have a 
> > KEY
> > to "unlock".
> > In CCSDS (digital reception) frame header there is a bit telling you if 
> > data
> > is/not crypted. It also contains the key number that you have to use to
> > descramble it.
>
> Thanks. How is the "KEY" exchange done ?
>
> Descrambling doesn't necessarily mean hacking for malicious purposes,
> it can also mean learning existing systems to design better/more
> efficient ones for the future. Thanks for your opinion.