Re: Identification of users of payphones

2003-03-17 Thread John Kelsey
At 08:03 PM 3/14/03 -0800, Tim May wrote: ... They could be round, for easy handling. And milled for evidence of having been shaved. They could even be made of precious metals for high-value coins, and of base and inexpensive metals for low-value coins. Have you filed for the patent, yet? --Tim

Re: Identification of users of payphones

2003-03-15 Thread Tim May
On Friday, March 14, 2003, at 09:24 AM, Adam Shostack wrote: Its possible, but expensive; this was done in the Tim MViegh trial; they linked all his calls, and then traced it to him. With computers, this gets easier and cheaper. Social network analysis is an obvious outgrowth of the traffic

Re: Identification of users of payphones

2003-03-15 Thread Bill Stewart
At 08:03 PM 03/14/2003 -0800, Tim May wrote: They could be round, for easy handling. And milled for evidence of having been shaved. They could even be made of precious metals for high-value coins, and of base and inexpensive metals for low-value coins. This would solve the telephone privacy

Identification of users of payphones

2003-03-14 Thread Thomas Shaddack
Couple months ago, our local Telecom decided to switch over from easy-to-emulate EPROM-based dumb smartcards (described at http://www.phrack.com/show.php?p=48a=10 ) to Eurochip ones. Today seemed a good day to learn more about them, so I sniffed around a bit (eg,

Re: Identification of users of payphones

2003-03-14 Thread Adam Shostack
On Fri, Mar 14, 2003 at 05:36:28PM +0100, Thomas Shaddack wrote: | Couple months ago, our local Telecom decided to switch over from | easy-to-emulate EPROM-based dumb smartcards (described at | http://www.phrack.com/show.php?p=48a=10 ) to Eurochip ones. Today seemed | a good day to learn more