af2f9f43   
   XPost: comp.dsp, sci.crypt, sci.electronics.design   
   From: NotaBrewster@thebarattheendoftheuniverse.org   
      
   On Sat, 19 Dec 2009 18:42:52 -0800 (PST), David Schwartz   
    wrote:   
      
   >On Dec 18, 6:15 pm, Archimedes' Lever    
   >wrote:   
   >   
   >>  Real simple.  Make it TCP/IP and use IP encryption, just like the   
   >> government and military does everywhere else.   
   >   
   >Sure, you just fly on up to the satellite and change its design so   
   >that it handles a digital uplink rather than an analog one. I think   
   >NASA has a space shuttle you can borrow.   
   >   
   >>  As far as your claim of knowing what they did implement...  I have   
   >> serious doubts that you do. Your simple, blanket statement that it "is   
   >> simply not encryption capable" is about as uninformed and stupid as it   
   >> gets.   
   >>   
   >>   ANY data stream can be EASILY encrypted, and that at a very strong   
   >> level.   
   >   
   >Sure, so long as there is decryption hardware on the other end. If the   
   >other end is designed to receive an unencrypted analog uplink, it is   
   >*not* an easy task to substitute encrypted video that can pass over   
   >the existing system and still be reliably decrypted on the other end   
   >despite noise in the analog signal. In fact, as far as I know, it is   
   >still an unsolved problem and every solution to date has been   
   >compromised.   
   >   
   >The system has an analog uplink and a digital downlink. The middle   
   >essentially cannot be modified because it's satellites. The only   
   >reasonable solution is to encrypt the video before the uplink, pass   
   >the encrypted video over the analog uplink, and hope that the digital   
   >downlink can still be reliably decrypted. If you think that's an easy   
   >task, explain what technology you would use to do it.   
   >   
   >DS   
      
     Boeing and many others are currently working on such systems.  You have   
   not even been paying attention to some of the references made in this   
   very thread.   
      
     Since the idiot that referenced it was more concerned with putting down   
   the government, it is not surprising that you may have missed his   
   reference since it was framed inside a slew of insults.   
      
     Anyway, it is common knowledge what IS used, AND what WILL be used, as   
   well as the wish list for an entire, new constellation of satellites.   
      
    It is only some of what is online now, and what is coming online and   
   what may come online...   
      
   _http://jpeojtrs.mil/files/org_info/SBIR_STTR_FINAL_PAGE_FLIP_LA   
   OUT_smaller.pdf   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)