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Ask Slashdot: Encrypted Digital Camera/Recording Devices?
Ransak writes "As we hear more and more about dashboard cameras catching unplanned events, I've thought of equipping my vehicles with them just in case that 'one in a billion' moment happens. But given the level of overreach law enforcement has shown, I'd only consider one if I could be assured that the data was secure from prying eyes (e.g., a camera that writes to encrypted SD memory). Are there any solutions for the niche market of the paranoid photographer/videographer?"
Are there any solutions for the niche market of the paranoid photographer/videographer?"
Why yes, yes there is. It's called building it yourself. While encryption isn't illegal, you may have noticed despite the obvious benefits and lack of drawbacks to the consumer, it isn't found pretty much anywhere. This is deliberate: Various law enforcement agencies that don't want to be found out make backroom deals to keep companies from providing this most useful of features because it would make their job more difficult. Or at least, so they say. In truth, they just want access to "ALL THE THINGZ!" regardless of whether there's a legitimate judiciary need for it. And encryption means they'd have to serve warrants and stuff to get the keys, not just go clandestine copy-pasta on your personal data.
So your niche market isn't niche at all -- it would already be out there, if not for the authoritarian governments of the world (I'm looking at you "free" western society). Now with that out of the way, you can roll your own easily. Embedded devices with a USB connector and linux are a dime a dozen, and most sport the ability to store data to an SD or CF card, as well as boot off of them. It's possible to create one-way encryption so something can be written to using a public key, but only decrypted using a private key not located on the same physical device. This would provide you with a tamper-evident system, and simultaniously provide full protection for your privacy; You can't recover the data without the key, and the data cannot be modified without it either.
#fuckbeta #iamslashdot #dicemustdie
Hmm, an SD card plugged into your camera, sticking out in plain view, with nothing on it. A second card, installed under the dash, that does the recording. "Why no, officer, I don't believe the camera was turned on".
And the worms ate into his brain.
"Hrm. Well there, this SD card looks blank. Format."
And it's tossed in the trash because it was broken.
What you need is something that streams to off site.
I thought he was clear on the problem that encryption solves: the level of overreach law enforcement ....assured that the data was secure from prying eyes
He wasn't looking for a solution to prevent him from throwing away an SD card that he recorded his encrypted steam to - how is that even a problem? I have a flash drive right here with gigabytes of encrypted data and I haven't thrown it away because it contains gigabytes of encrypted data.
In the UK you are required to decrypt files that may contain evidence of a crime under the RIP act.
That's why you have two decryption keys - one that decyrpts the actual video, and one that decrypts a stream of LOLcats videos. Then you say "Oh noes! My wife must have recorded LOLcats on here!".
Get an eye-fi SD car for $50.
It transfers your photos/video from your camera to your laptop/tablet/smartphone and then deletes it from its local storage.
So you can show an empty SD card. And your laptop/tablet/smartphone is password protected and/or encrypted.
My God can beat up your God. Just kidding...don't take offense. I know there's no God.
Too much work, too hard to insure you always have a signal. The answer to this one is actually pretty simple...carputer. You can either DIY with one of several kits or a friend of mine has made a good living installing mini-HTPC boxes based on Bobcat chips in trunks, its really not hard and these chips are ultra low power so its not a drain. Add an SSD using Truecrypt and voila! The cops pull the plug to get the SSD out and all they have is a brick without your Truecrypt password. There are plenty of little 5 inch touchscreens you can mount in the front so you can input your password as you are starting up and if you decide you want to keep anything you recorded 5 minutes with a portadrive and Bob's your uncle.
This ask Slashdot frankly ain't hard, hand me $600 plus the cost of the parts and I can have it done over a weekend, going DIY if you don't have exp in this kind of deal will take a little longer but if you can follow instructions and use basic common sense? Really not that hard. You can go wireless to the carputer (costs more) or you can run the wires around the door frames (cheaper but more of a PITA) to the cameras and an AMD bobcat with a stripped down OS like Win 7 Tiny or Puppy Linux can easily record a couple of cameras no problem, its a 1.7GHz dual core after all. So its really not hard, just takes a little time and depending on how fancy he wants to get it can cost anywhere from $500-$1500, price depending on how many cams, the quality, what kind of extra features like being able to playback video or surf on the carputer, etc.
ACs don't waste your time replying, your posts are never seen by me.
He doesn't throw the card away. The "prying eyes" do. If his car gets searched and they confiscate the contents of his car. It's very easy for an SD card to go missing or get formatted.
I have a dashboard camera and had similar thoughts about the encryption. I don’t care to stream the video somewhere else -- this is not my concern, I just don’t want the video to end up in the hands that I didn’t approve. Current cameras store several hours of most recent footage and even if I decide to share the last 5 minutes, who knows what could be there during previous hours if my card is copied in full.
Even if the camera manufacturers are not making the camera with built-in encryption, having a public-key encryption can be achieved on a separate tiny device. With current technology the device could have a form-factor of an SD-card. Imagine you have an SD card to which you record a public-key. Every following write to the card will be done through a built-in encryption using that key. All reads will return the encrypted content and it will appear as garbage. But for the purpose of most cameras (that only need to be able to read directories and file names) this will work. If the device is not as small as the SD card, I’d be ok to have wires sticking out of the SD slot that go to my “encryptor”. I can totally see such card to be useful for general photography too.
There's no such thing as "illegal download"
Presumably you would have to enter your passphrase before recording can commence. Thus, you enter the passphrase before backing out of the driveway. With a "carputer" you may be able to enter the passphrase over bluetooth or wifi from your smartphone.
Though a small screen with some beeps reminding you to enter the passphrase each time the car was turned on would help you do it every time. Might have BT turned off on your phone and thus not get the notification.
Who wants to enter a 20 character password every time you start your car? Just use public key cryptography to encrypt the data in the car, and keep your private key somewhere safe where you can decrypt the video.
All that sounds great in the classroom/laboratory, but in the street it's pure bullshit. The cops can and will do want they want any time they think they will get away with it, including rape. and the biggest lie they continue to tell is that it's not systematic. Well, it is, and the only anomaly is getting caught.
“He’s not deformed, he’s just drunk!”
11th circuit court of appeals ruled that you *CANNOT* compel somebody to decrypt their HD.
Click here for link
I have a camera built into the front license plate bracket rather than sitting on the dashboard. This particular one has the recording device elsewhere on the vehicle, but I suspect with today's technology the entire thing could fit in the license plate bracket. Just sayin'.
Oliver's law of assumed responsibility: If you're seen fixing it, you will be blamed for breaking it.
What police have the right to do and what police do are two very different things.
Thank you, Edward Snowden.
"Arguments from authority are worthless." —Carl Sagan
Either it isn't thought through, or it is chimera. The thing is if you what you are worried about it corrupt cop does something you record, they stop you, and take the recording away, encryption does fuck-all to stop that. The cops steal the gear, that is that.
The solution to that is a backup, or a fake item. A setup where the obvious camera isn't the one that records, or that there is a second SD card elsewhere that has a copy or something.
Encryption is only useful if he wants to be able to cover his tracks, and selectively release video. This is precisely what corrupt police like to do with their dash cams. They use them to protect themselves, but turn them off or "lose" the video when they are breaking the law.
So to me it implies that he probably like breaking traffic law, and doesn't want the evidence of that around, but still wants to be able to record things.
5. The Police have NO RIGHT to search you or your property for evidence without a specified WARRANT. PERIOD.
You seem to be misinformed. They can search your vehicle during a traffic stop if they have probable cause. This can also be grounds for forcibly entering you home if they have cause to believe you are holding someone hostage, etc. Unfortunately probable cause can be very easy to abuse.
The you have even worse abuses such as the NYC stop and frisk law
Well you know that they can get a warrant to force you to decrytpt it
The 5th Amendment would tend to disagree with you, at least in the US. Now if they grant you immunity, then yes you have to decrypt it, but then you have immunity and are not at risk.
to be honest if you driving on the public highway is there any reasonable reason why you would want to deny law enforcement access to it?
Because I want to and it's a free society?
try to hide your footage implies that you have been doing something naughty driving wise.
It implies nothing more than I don't want other people to see it without my permission.
People in cars cause accidents....accidents in cars cause people
Police routinely destroy, delete, edit and/or obfuscate footage when it shows them in an "unflattering" light, why do you expect everyday citizens to turn over evidence against themselves when the police fail to do the same?
http://www.wtop.com/?nid=708&sid=1938732
http://www.newschannel5.com/Global/story.asp?S=12951588
http://www.wtop.com/?nid=428&sid=1116072
http://blog.al.com/spotnews/2009/05/birmingham_police_beating_vide_3.html
https://www.youtube.com/watch?v=pmXTFr5hoOo
http://gritsforbreakfast.blogspot.com/2010/03/fort-worth-justice-says-traffic-stop.html
http://www.sun-sentinel.com/news/broward/hollywood/sfl-hollywood-cops-fake-report-b072809,0,350771.story
"Also, in some states it is a crime to record an on-duty police officer without their permission."
No, it isn't.
This has been tried in a relatively few states, and while at first some judges were cooperative with the police, eventually in every state where it has been tried so far it has been thrown out of court.
It is now a pretty well-established principle that if something is occurring in public, you can film it. Even if it's cops doing it. Almost anything that occurs on the street, in fact, plus anywhere else public. Even backcountry roads.
People have a RIGHT to film the police doing their taxpayer-funded jobs in public. Period.
Recently some cops tried a new twist on this idea. They claimed that filming was okay, but that recording audio at the same time was "illegal surveillance" under their states' "all-party consent" law. (I.e., in some states, all parties have to consent before a phone conversation, for example, can be legally recorded.)
That didn't stand up in court, either.