A counter to this is to use SDR to enable WiFi mesh nets to use the LTE spectrum.
-------- Original Message -------- From: Nymble <[email protected]> Apparently from: [email protected] To: "[email protected]" <[email protected]> Subject: LTE in Wi-Fi bands Date: Thu, 17 Sep 2015 10:52:09 -0700 > Cells phones in 2016 will start to use Wi-Fi bands for LTE: > http://goo.gl/s2Vsrz > There goes our free use of spectrum. There has been no adiquate effort by > Qualcomm to demonstrate that LTE-U will compete fairly for band usage against > Wi-Fi. > > > > > > On Aug 18, 2015, at 11:52 PM, Peter Fairbrother <[email protected]> wrote: > > > > On 18/08/15 19:23, jim bell wrote: > >> *From:* Peter Fairbrother <[email protected]> > >> > >> *Subject:* Re: Recommended Movie: "Sebastian" 1968. > >> > >> On 18/08/15 03:46, jim bell wrote: > >> > >> > >> >> Since people seem to be recommending things, I recommend the movie > >> >> "Sebastian". Dirk Bogarde, Susannah York. > >> >> https://www.youtube.com/watch?v=bIK3OYnD9MY > >> > >> >> Out of date even when it was made, I think it really represents the > >> >> cryptography situation as of the 1930's. > >> > >> >Based on a screenplay by Leo Marks - author of Between Silk and Cyanide: > >> >A Codemaker's War 1941-1945. > >> >Essential reading. Leo was the codemaker for SOE. All hand ciphers and > >> >agents. > >> >He wasn't at Bletchley - who called him "the one who got away" - though, > >> >and so no machine ciphers. > >> >The Silk in the title was for OTPs which could be hidden in clothing > >> >from Gestapo/SS searches. > >> >As I said, essential reading. > >> > >> > >> The tv show 60 Minutes spilled the beans about Enigma in 1975. > >> http://www.cbsnews.com/videos/the-ultra-secret/ > > > > > > Not sure that was the one to spill the beans. I thought it was > > Winterbotham's 1974 book of the same name which first got the idea across > > to the public; though there was a French book in 1973 as well. > > > > Like Winterbotham's book, which the TV show seems to be based on, it's also > > a bit confused and/or inaccurate. Much of what they tell - the > > conversations between Hitler and his generals, "knowing Hitler's most > > secret thoughts", and Hitler's message re Anzio which Gen Clark read - came > > from the breaking of the Lorentz SZ40, not the Enigma. Colossus, not Bombe. > > > > And the Coventry story is fiction [1]. Churchill could not have been told > > the target from ULTRA decrypts. The ULTRA decrypts are now available in > > public records, and they do not mention Coventry. > > > > > > > > [1] My theory: Probably it began as a story made up to impress the need to > > keep the ULTRA secret - "hey if the man at the door with the revolver who > > just threatened to shoot you doesn't impress you, Churchill allowed [2] the > > bombing of Coventry in order to keep the secret". > > > > Later the story became an accusation, then a rumour, then a play - though > > by the time it became a play it was becoming obvious that ULTRA wasn't > > involved, and the motive for allowing the bombing changed to "Impressing > > the Americans" [3]. > > > > I can easily imagine someone telling Winterbotham the story (Winterbotham > > was the one who first told the Coventry story in public). > > > > I can also imagine Winterbotham repeating the story, in confidence, in > > order to impress the listener with the need to keep the secret (and with W > > himself) so often that he didn't know whether it was true or not (he didn't > > claim to be personally involved). > > > > Good story, and Churchill was probably capable of it - but it ain't true. > > > > > > > > [2] not that there was anything he could have done to stop the bombing, but > > for the sake of the narrative .. > > > > > > [3] requiring an even wilder suspension of belief, IME > > > > > >> What most people didn't realize was that the controversy was due to the > >> fact that rotor-driven cipher machines had been continued to be sold in > >> the post-WWII era, without their weakness being recognized. This > >> allowed the CIA/GCHQ to continue to decrypt enciphered messages for > >> decades afterwards. > > > > > > Yes - but Leo Marks wasn't involved in that. He ~ stopped being a > > cryptographer when SOE was broken up at the end of the war. > > > > What he did was hand ciphers, for agents in occupied countries - they > > couldn't carry cipher machines. > > > > There is nothing else like Between Silk and Cyanide in the crypto > > literature. Crypto at the cutting edge, where a mistake is a painful death, > > and likely worse. > > > > More, it is about how a cryptographer and his work interact with the world. > > > > I would not like to have been Leo (I met him once), but hell if I don't > > respect him. > > > > There is a TV documentary about him, called "A Very British Psycho" - an > > apt title. > > > > > > > > -- Peter Fairbrother
