- cypherpunks-legacy - lists.cpunks.org

Confiscation of Sensitive Video
by Charles Lucas 29 Oct '02

29 Oct '02

I recently had a discussion about this with some local folks... We dreamed up a scheme something like this: N number of people with broadcast cameras. N or less people with receiving "buffer" backpacks. A few basestations, which could be housed in a local building, or in a parked vehicle with some sort of uplink. The camera people would roam around shooting video, with no memory buffer, broadcasting on set channels/frequencies. The backpackers would be running around with receivers, recording from one or more cameras. When the backpack buffer/HD is nearing full, the backpacker would move within ranger of a basestation, dump their buffer, then move back towards the cameras. The basestation would then upload the video to some site on the net, which would re-distribute to multiple locations, ensuring the survival of the captured video. Goal: To capture and distribute video in such a fashion that confiscation of the camera and other equipment will not result in confiscation of captured video. Considerations: All the hardware, especially the cameras, should be as small and cheap as possible, with the caveat that we need to capture decent quality video. The cameras are the most susceptible to being confiscated, and should essentially be treated as disposable. Cell phones are the most reliable method of data transfer in cities, but have limited bandwidth. Per-minute charges would make this option impractical pretty quickly as well. Un-boosted unidirectional 802.11 has a limited range (about 100 feet, or one city block). The hardware tends to be expensive, and generally requires a full computer to operate. Probably too expensive for "disposable" cameras, although a solution could theoretically be worked out. The best option for now would seem to be cheap cameras, either of the X10 variety, or something cobbled together by hand that broadcast on standard analog frequencies. The cameras could each broadcast on a different frequency, and the backpackers could have multiple recievers, with more than one backpacker set to receive each camera, for redundancy. The backpacks could receive a few analog radio channels (one per camera), convert the stream to a compressed video format, and buffer on a hard drive. When in range of a designated 802.11 receiver, dump the video as quickly as possible. Inter-unit communication is a difficulty. With the receivers having only about a one-block range, the cameras have to have some way of telling the backpackers their location, or notifying them if something interesting is happening some distance away. Portable radios would be useable, but would be open to interception and require visible landmarks. If a practical way could be found to have cheap 802.11 between the cameras and backpacks, the cameras could broadcast their GPS coordinates, allowing backpackers to keep within range. Power is a major concern, as batteries are neither light, nor cheap. I have no feeling at this point for how long you could run a camera and a radio transmitter, or a backpack receiver/transmitter off of what type(s) of batteries. This could be a real limiting factor. The weak points are the basestations. If they can be taken out, the operation falls apart. Plausible deniability isn't really possible with this setup. Everyone pretty much knows who all is involved, and has to keep in contact with each other in order to capture video optimally. I would see this setup being used by above-board organizations, such as Indymedia or similar groups. It would mainly be useful for video capture in large urban protests, like the ones surrounding the Seattle WTO conference. Any more thoughts/suggestions around these areas?

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Re: False statement: "Since cypherpunks no longer code"
by Len Sassaman 28 Oct '02

28 Oct '02

On Sun, 27 Oct 2002, Tim May wrote: > On Sunday, October 27, 2002, at 02:20 PM, Eugen Leitl wrote: > > Political decisions could kill the demand driving development. Cheapest > > way for the fringe is to inform and develop countermeasures. Since > > cypherpunks no longer code, spreading information should have priority. > > This is a false statement. A cheap shot, in fact. I will stack the code > written by attendees of the recent CP meetings against your code, > Eugene, any day. (No offense, Eugene, but I despise these > "fashionable" cheap shots which miss the mark so...cheaply.) I'm somewhat surpised that you didn't mention the ring signature program whose source code was posted anonymously to this list a few months ago, Tim. I'm slightly less surprised that Eugene missed it. http://www.abditum.com/~rabbi/ringsig/ > CodeCon, earlier this year, was a smashing success. Thank you. :) I think that this year's CodeCon will prove that lots of interesting code is still being written. I'm rather excited about our current program lineup, and we haven't yet stopped accepting submissions. --Len.

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28 Oct '02

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by AMila 28 Oct '02

28 Oct '02

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Confiscation of Anti-War Video
by Tyler Durden 28 Oct '02

28 Oct '02

In antoher context I've wondered about the possibility of wireless, near-real-time video upload. With 3G this will cetainly be easy, but I'm wondering if there are soft/hard gadgets that can auto-upload stuff.(In addition, 3G looks like it's going to roll out in the US only in fits and starts over the next bunch of years.) Ideally, this upload would be made directly to WWW, but upload to a safe-haven would certainly be better than nothing (particularly if one does not even have any knowledge about where some copies of the upload are auto-uploaded to!). Anyone done anything like this? T.D. >> >We videoed and photoed the demo, but tape and chip were confiscated Sunday >by the guards at Warrenton Training Center, Site D, near Brandy Station, >VA, >Site D is the global comm center for State and DoD, and reportedly the CIA: > > http://cryptome.org/wtcd-eyeball.htm > >I asked if the shoulder of the road was federal property. Their answer: >yes. > _________________________________________________________________ Choose an Internet access plan right for you -- try MSN! http://resourcecenter.msn.com/access/plans/default.asp

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Re: FC: Privacy villain of the week: DARPA's gait surveillance tech (fwd)
by R. A. Hettinga 28 Oct '02

28 Oct '02

At 8:36 AM +0100 on 10/28/02, Eugen Leitl wrote: > If my traffic is remixed the signature is not linkable to a point of > origin. The signature emitted is not rich, and can be scrambled in > principle. Yes, but the behavior of the signature, the things it does, is biometric. You can't have persistent reputation otherwise. Cheers, RAH -- ----------------- R. A. Hettinga <mailto: rah(a)ibuc.com> The Internet Bearer Underwriting Corporation <http://www.ibuc.com/> 44 Farquhar Street, Boston, MA 02131 USA "... however it may deserve respect for its usefulness and antiquity, [predicting the end of the world] has not been found agreeable to experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire'

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Re: arltd
by ldwSara 28 Oct '02

28 Oct '02

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Re: Office of Hollywood Security, HollSec
by David Howe 28 Oct '02

28 Oct '02

at Saturday, October 26, 2002 1:18 AM, Tim May <tcmay(a)got.net> was seen to say: > Yes, but check very carefully whether one is in violation of the > "anti-hacking" laws (viz. DMCA). By some readings of the laws, merely > trying to break a cipher is ipso fact a violation. IIRC, you can't be arrested for cracking a cypher unless that cypher is in use to protect a copyrighted work....

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RE: What is the truth of the anti war rallys?
by John Young 28 Oct '02

28 Oct '02

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