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Homepage Disclaimer to these pages Part XVII Part XVIII Index to birth of Kweb |
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Posted 10 Feb 2003 |
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Yes, I never tried to make and I never tried to describe. But now I will: Suppose you need to make a telephone call and in the call a lot of 'secret' information has to be exchanged. Or you just want to make sure that you can have a private conversation. What to do? Well in that case you plug your telephone wire in a little device and
the device will continuously code all you say. At the other end a similar
device translates it back and both devices must be told how to 'code and
decode' in the right way. I could be wrong and may the this kind of device is in use in many
organizations, but in that case one would have heard of such a relatively
simple device. And now when there are even digital telephones at the scene
it would be even more simple to make such things. But in all kinds of armies it is rather normal to have some booklets with 'day to day' keys for the radio transmissions and telex messages. Why not for phones? That is only little extra organization and I think a rather smart electronic engineer can design it rather quickly, that is what I think. It is just a small detail, but since we lately had the American
secretary of State referring to some phone calls I just wondered if this
situation is at hand in all armies around the world. End of my little wondering about 'instant coding & decoding' of telephone calls. ___________________________________________________ Added 22 June 2003; Finally I took the time to do a bit of Google search and fast did pop up all kinds of American companies selling coding stuff for analog&digital phone. Even for cell phones, the items are a bit pricely (1700 to 2500 US$) but they are for sale. So that is a big difference with the mid-eighties when this kind of stuff was hard to get, and on all those American websites you read that 'falls under some techno export law'. Also the problem with American stuff is, can you really trust it? It is complete not possible for the NSA to trace you and to translate the coded phone calls? It would be reasonable to expect that is the NSA can not trace and translate the calls, this kind of technical device was simply not allowed for sale.... Also it is wise to know that public available encryption algorithms are rather likely broken by the NSA without much trouble, or not? Lets quote a bit what I found on one of those websites?
Lately I did observe the George Tenet figure (the head of the CIA, lately a bit under fire from the White House for incompetent intelligence around the Iraqi weapons of mass destruction) complain that 'We cannot even trace and translate the latest cell phone cells used by evil Muslims!'. You know what I hope? I hope some people did make use of the special Reinko Venema algorithm that makes use of smearing out data in time a little bit (so you have a tiny bit more waiting time until your words reach the other side). But the big advantage of that special algorithm is that the more data you send the harder it is to crack them, and combined with a simple 'code correction devise' as found in every CD player the price would be much much lower that 2200 US$. Or am I wrong on this? Lets leave the telephone fun with this, the lesson is simple; there is
no need to make yourself dependent from American technology. Often you can
design it yourself, it is much easier than most people think. All you need
is some working together of some electronic engineers with some math
people and then a working device is made in a few hundred days. A long time ago I published a bit of rather simple math that can give rise to a rather robust way of coding/decoding all kinds of computer files (as long as the files are represented via bits that can be interpreted as 'numbers'). Here it is. End of file.
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