Description: The GSM encryption algorithm, A5, is not much good. Its effective key length
is at most five bytes and anyone with the time and energy to look for faster
attacks can find source code for it at the bottom of this post.
The politics of all this is bizarre. Readers may recall that there was a fuss
last year about whether GSM phones could be exported to the Middle East the
official line then was that A5 was too good for the likes of Saddam Hussein.
To Search:
File list (Check if you may need any files):
a5.c
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