While "a" solution, not a workable one in my situation. When I say "sneak", I literally mean it.
We work with proprietary aerospace engineering data and processes, including DoD funstuff.
Seriously, there is no way in hell I can sneak in a laptop. It's hard enough sneaking in a smartphone. I am literally stuck with mobile view webpages until after 2am, and limited to the tools available for an android platform running froyo. It isn- by choice that I play in the pool with orange floaties on, ok?
If you have unusual client side restrictions, then state them when you state your problem or don't whine when someone gives you an "unworkable" solution to your problem.
But if your computer is locked down tightly enough to prevent you from browsing the internet freely, how do you copy images that you've downloaded to your phone over to your dual-monitor desktop computer without violating your employer's security policy? At my company, when we lock down a computer, not only do we restrict webpages to a small subset of "business need" websites via a logging proxy server that can't be bypassed, but we also prevent external storage devices from being attached and prevent wireless networks from being enabled (though the computers have no Wifi or bluetooth adapters). And these are just computers with access to sensitive business data, we have no DoD policies to worry about.
The Court therefore ORDERS, pursuant to Federal Rule of Criminal Procedure 41(b); Title 18, United States Code, Sections 2703 and 3117; and Title 28, United States Code, Section 1651, that Verizon Wireless, within ten (10) days of the signing of this Order and for a period not to exceed 30 days, unless extended by the Court, shall provide to agents of the FBI data and information obtained from the monitoring of transmissions related to the location of the Target Broadband Access Card/Cellular Telephone...
What part of that do you think authorizes the DoJ to intercept everyone's calls while looking for the target device? It might be argued that the authorities were working as agents of Verizon, but it also might be argued that Pink Unicorns did the interceptions, and I don't think the court is going to accept either one.
Even an omnipotent deity cannot make 1 + 1 = anything other than 2. Sorry, math and logic are above omnipotence, i.e. the unlimited number of things that can be done in the physical world.
Why not? If any time you tried to count 2 objects a 3rd one popped in out of thin air, then 1+1=3 and you'd have to come up with a number theory that takes that into account. Every time a teacher draws one bunny on the board plus one bunny, try as she might to draw two bunnies on the right-hand side of the = sign, she'd be driven to draw three bunnies.
It certainly wouldn't make sense with our current number theory, but the omnipotent being can go back in time and make it so it's always been that way.
Sure, youre right, but do you know what it also tells us?
That this God fellow is one hell of an evil lying monster.
Or maybe god is not evil, but he's doing whatever he's doing to prevent even greater suffering. Maybe man's believe in god (tenuous as it is) is the only thing keeping unspeakable evil from reining down on earth and whatever cruel acts we see in god are actually part of his efforts to save us from the greater evil.
Yeah, or maybe there is no god. Could go either way.
Apparently God didn't invent sarcasm until the day after you were born...
I'm not sure what point you're trying to make - I got his sarcasm, he wasn't *really* saying that his faith was renewed, he was sarcastically implying that my post had no effect on his faith.
But even if I take what you said literally, if sarcasm was invented the day after I was born, then I would have been exposed to it throughout my developmental years and would be quite accustomed to sarcasm.
You're the one who could accept that the earth was created by god, except for the inconstancy that light was created before the sun was created.
You can't agree with one miraculous act and then claim that it's inconsistent with a second miraculous act when the first act was already so unbelievable that any being that could accomplish it is truly omnipotent.
The contractors that built my house put up temporary lighting before the wiring and permanent lamps in the house were installed, apparently god did the same thing - he created temporary lighting before installing the sun.
I fail to see how that's any kind of proof against an ominipotent deity that can create an entire planet (and even a universe) out of nothing. Surely cooking up some uniform CMB wouldn't be difficult for such a deity.
CMB may be consistent with the Big Bang theory, but it's also consistent with a deity that wants to fill his universe with CMB for whatever reason.
That's the problem with trying to prove anything against an omnipotent deity - omnipotent means he can do *anything* including faking fossil records, making people suffer for no apparent reason (even young children), and filling the universe with CMB.
This is the first report of sheets of soft tissues from Triceratops horn bearing layers of osteocytes, and extends the range and type of dinosaur specimens known to contain non-fossilized material in bone matrix.
What does that mean in laymens terms? Sounds like they are saying that they found another bone with non-fossilized remains, but what's the significance of that?
Yea the first day the earth was already there and light was created, of course it was a few days later when the sun was created so where did that light come from?
An omnipotent being created the earth and the rest of the universe, and you're quibbling over how he could create light before the sun? If he can create matter from nothing, surely creating a few photons isn't beyond his powers.
For someone who's not too familiar with the Bible, what are the claims up for grabs in this challenge, aside from creating the earth in 7 days and 7 nights, Adam & Eve, and the talking serpent?
How can anything be disproved if one must first accept that Genesis is the inspired word of an omnipotent deity? And if that's not an accepted fact, then isn't the "disproof" the fact that it was written by man?
Exactly - what's wrong with that? If the other guy wants a camera to prove it's my fault, let him get his own camera, don't expect me to use my camera to prove my own guilt.
What's wrong with that is your (hypothetical) lack of honesty. If you're guilty and you know it, you should admit your guilt and deal with the consequences, and then the presence and/or ownership of a camera becomes a non-issue. It's part of being a responsible adult.
Maybe the camera shows me making a rolling right turn on red 10 minutes before the accident and I don't want to have a $500 red light violation on my record just because I had a camera. Or maybe I don't want the right turn on red used as evidence against me to show that I'm a reckless driver even if the red light violation had nothing to do with the accident.
Do *you* want a car camera that records your every move and can be reviewed by police to give you a ticket for every violation you committed in the past week? Are you *sure* you signaled 100 feet before that intersection? Do you know that you never crept 1mph above the speed limit? The camera knows.
Then try not having a romp with your mistress in front of a video camera that you know is there. (assuming just not having a mistress to be ashamed of is not an option for you)
What I do with my mistress is my own business, what my wife and I think about it is *our* business, there should be no reason to fear that what my own camera records will someday become part of a court record despite my own objection.
I'm Scottish, I'm about 40, I've never heard it in common usage. My mum says it used to be common before the war.
From a bit of investigating, it looks like 60 "lb" is really 27kg, which isn't very heavy - about normal for a smallish car battery, the sort of thing you could pick up like a lunchbox and carry about.
A smallish car battery like what you'd find in a Honda Civic weighs 13kg, not 27kg and has about 45Ah of capacity, even in the UK:
60lb (~5 stone to put it in units you can understand)
A whatnow? Presumably that depends on the size of stone, and what sort of rock it's made of?
Huh, you'd think that someone from the UK would be familiar with Stone. It may not be as common as it used to be, but my wife's Scottish grandma still uses it.
So what the query really is, "I want a camera that I can use when the accident is someone else's fault and I can pretend doesn't exist when the accident is my fault?". After all the cameras only record a certain amount of time and then overwrite previously recorded video, hence there isn't much worry for loss of privacy.
Exactly - what's wrong with that? If the other guy wants a camera to prove it's my fault, let him get his own camera, don't expect me to use my camera to prove my own guilt.
But even if the camera only records 30 minutes or an hour of video, there are still privacy concerns. If I'm in an accident 30 minutes after a quick romp on the hood of my car with my mistress, I sure don't want my wife seeing that video when they play it back in court.
I'm pretty sure you could do some suspend magic to make it draw less power, and I can't really think of any reason why you'd need to have it sitting idle-but-powered with the engine off for more than a couple of hours.
You could, but you'd run the risk of having it fail to wake up -- my laptop fails to wake up properly from sleep mode about once a month (that's both my home laptop running linux and my work laptop running windows). That means it would happen about once every week or two in my car based on the number of times I start my car.
A 90Ah battery is fairly small and inexpensive, and certainly smaller than the existing battery in my car. It's certainly not heavy, compared to the rest of the stuff I carry about
I guess that depends on your definition of small, inexpensive, and heavy:
I'm not sure what an "lb" is but the 110Ah battery for the car is about 30kg.
The lb, or pound is around.07 stone.
The battery I quoted above weighs 28 lbs (12kg) and has 85 minutes of reserve capacity at 25 amp draw (that's how they quote it) , or 35Ah of reserve capacity. It would probably last longer at a 1.5A draw, maybe 50Ah.
I'd like to know what kind of car battery you have with 110Ah of reserve, even the battery for a heavy-duty FOrd F350 Diesel pickup is 12x7x7, and weighs 41lb (18kg) and has 62Ah of reserve.
So, as I said, a 90Ah deep cycle battery is larger and heavier than a typical car battery.
yes, something small LIKE the raspberry Pi, but something that has enough power to encode and encrypt a real time video stream. I don't think rPI has hardware assisted encryption or encoding, so I doubt it could do the job.
The video camera for the Raspberry Pi is reported to be able to record 1080p at 30 frames/second:
I don't know if there's enough left over to do encryption at the same time, but maybe you could cut the frame rate in half and record 15 frames/second to allow more time for encryption. 15fps (or 1 frame eery 66ms) is probably good enough for a car cam.
If the hardware crypto is confiscated, won't it have the private key?
Not if you don't store it on the device - with public key cryptography you can encrypt with your public key (and you can give that public key to the world), but only your private key can decrypt, which you've stored someplace safe.
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.
Deep cycle battery and a split-charging relay. If I'm leaving the vehicle parked up for more than a day or so, I'll just power all the computery stuff off.
A Bobcat E-350 system including power supply is going to draw around 16 watts when idle, so figure 1.5 amp @ 12V. If you want it to last a day or so (2 days?) you'll need a 72 Amp-hour battery, but you won't want to discharge it too deeply, so let's go with a 90 amp-hour battery to be safe. So you're talking about a $200, 70 lb battery that's bigger than your car battery just to keep this thing powered for 2 days. That's a lot of extra weight to carry around just to run a camera.
Not really. He never mentioned why he exactly wanted it to be encrypted. It also deletes the evidence of the police doing something wrong. What if it was a cop that ran the red light but said it was you? What if you pull up and see a cop beating someone?
He said he wants to record video but keep it safe from prying eyes, doesn't that say exactly why he wants to encrypt it?
He said nothing about wanting to keep it safe from confiscation or destruction by the police, that's a much different problem that isn't solved by encryption - he just doesn't want them to be able to view the video.
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.
How do you handle the power getting shut off to the CPU several times a day as the car is driven? You can't let it run all the time, it may be "low power", but it's not "no power". If you wait 10 - 20 seconds for it to boot every time you start up the car, then you miss the video of me having some car slam into me when I'm pulling out of the driveway.
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.
Then problem solved, right? He's looking for protection from having his own evidence used against him.
If the police are searching his car and seizing SD cards, I don't think they are going to casually steal the card and format it. If they are searching the car, the card (and everything in the car) is evidence and it will be bagged and stored with the rest of the evidence, and possible will undergo forensic analysis if they think there's useful data on it. Even if they don't know the data is encrypted, when they see gigabytes of data stored in a format they can't read, they'll just assume it's a new video file format that they can't play back.
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!".
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I email the picture to myself later, once I go home. :D
I log in to the corporate webmail portal, using the crippled browser client, attach the file, and set myself as the recipient.
Pull the image out once I go back to work the next day. It looks for all the world like an internal email.
Then why don't you just use your home computer to download the images, as others have suggested?
While "a" solution, not a workable one in my situation. When I say "sneak", I literally mean it.
We work with proprietary aerospace engineering data and processes, including DoD funstuff.
Seriously, there is no way in hell I can sneak in a laptop. It's hard enough sneaking in a smartphone. I am literally stuck with mobile view webpages until after 2am, and limited to the tools available for an android platform running froyo. It isn- by choice that I play in the pool with orange floaties on, ok?
If you have unusual client side restrictions, then state them when you state your problem or don't whine when someone gives you an "unworkable" solution to your problem.
But if your computer is locked down tightly enough to prevent you from browsing the internet freely, how do you copy images that you've downloaded to your phone over to your dual-monitor desktop computer without violating your employer's security policy? At my company, when we lock down a computer, not only do we restrict webpages to a small subset of "business need" websites via a logging proxy server that can't be bypassed, but we also prevent external storage devices from being attached and prevent wireless networks from being enabled (though the computers have no Wifi or bluetooth adapters). And these are just computers with access to sensitive business data, we have no DoD policies to worry about.
From the EFF article:
The Court therefore ORDERS, pursuant to Federal Rule of Criminal Procedure 41(b); Title 18, United States Code, Sections 2703 and 3117; and Title 28, United States Code, Section 1651, that Verizon Wireless, within ten (10) days of the signing of this Order and for a period not to exceed 30 days, unless extended by the Court, shall provide to agents of the FBI data and information obtained from the monitoring of transmissions related to the location of the Target Broadband Access Card/Cellular Telephone...
What part of that do you think authorizes the DoJ to intercept everyone's calls while looking for the target device? It might be argued that the authorities were working as agents of Verizon, but it also might be argued that Pink Unicorns did the interceptions, and I don't think the court is going to accept either one.
omnipotent means he can do *anything*
Even an omnipotent deity cannot make 1 + 1 = anything other than 2. Sorry, math and logic are above omnipotence, i.e. the unlimited number of things that can be done in the physical world.
Why not? If any time you tried to count 2 objects a 3rd one popped in out of thin air, then 1+1=3 and you'd have to come up with a number theory that takes that into account. Every time a teacher draws one bunny on the board plus one bunny, try as she might to draw two bunnies on the right-hand side of the = sign, she'd be driven to draw three bunnies.
It certainly wouldn't make sense with our current number theory, but the omnipotent being can go back in time and make it so it's always been that way.
Sure, youre right, but do you know what it also tells us?
That this God fellow is one hell of an evil lying monster.
Or maybe god is not evil, but he's doing whatever he's doing to prevent even greater suffering. Maybe man's believe in god (tenuous as it is) is the only thing keeping unspeakable evil from reining down on earth and whatever cruel acts we see in god are actually part of his efforts to save us from the greater evil.
Yeah, or maybe there is no god. Could go either way.
Apparently God didn't invent sarcasm until the day after you were born...
I'm not sure what point you're trying to make - I got his sarcasm, he wasn't *really* saying that his faith was renewed, he was sarcastically implying that my post had no effect on his faith.
But even if I take what you said literally, if sarcasm was invented the day after I was born, then I would have been exposed to it throughout my developmental years and would be quite accustomed to sarcasm.
Ohhh, makes sense now. My faith is renewed.
You're the one who could accept that the earth was created by god, except for the inconstancy that light was created before the sun was created.
You can't agree with one miraculous act and then claim that it's inconsistent with a second miraculous act when the first act was already so unbelievable that any being that could accomplish it is truly omnipotent.
The contractors that built my house put up temporary lighting before the wiring and permanent lamps in the house were installed, apparently god did the same thing - he created temporary lighting before installing the sun.
I'm assuming you mean Cosmic Microwave Background Radiation?
I fail to see how that's any kind of proof against an ominipotent deity that can create an entire planet (and even a universe) out of nothing. Surely cooking up some uniform CMB wouldn't be difficult for such a deity.
CMB may be consistent with the Big Bang theory, but it's also consistent with a deity that wants to fill his universe with CMB for whatever reason.
That's the problem with trying to prove anything against an omnipotent deity - omnipotent means he can do *anything* including faking fossil records, making people suffer for no apparent reason (even young children), and filling the universe with CMB.
Just found soft tissue in 60 mya bones... Again.
http://www.sciencedirect.com/science/article/pii/S0065128113000020
From the linked article:
This is the first report of sheets of soft tissues from Triceratops horn bearing layers of osteocytes, and extends the range and type of dinosaur specimens known to contain non-fossilized material in bone matrix.
What does that mean in laymens terms? Sounds like they are saying that they found another bone with non-fossilized remains, but what's the significance of that?
Yea the first day the earth was already there and light was created, of course it was a few days later when the sun was created so where did that light come from?
An omnipotent being created the earth and the rest of the universe, and you're quibbling over how he could create light before the sun? If he can create matter from nothing, surely creating a few photons isn't beyond his powers.
For someone who's not too familiar with the Bible, what are the claims up for grabs in this challenge, aside from creating the earth in 7 days and 7 nights, Adam & Eve, and the talking serpent?
How can anything be disproved if one must first accept that Genesis is the inspired word of an omnipotent deity? And if that's not an accepted fact, then isn't the "disproof" the fact that it was written by man?
Exactly - what's wrong with that? If the other guy wants a camera to prove it's my fault, let him get his own camera, don't expect me to use my camera to prove my own guilt.
What's wrong with that is your (hypothetical) lack of honesty. If you're guilty and you know it, you should admit your guilt and deal with the consequences, and then the presence and/or ownership of a camera becomes a non-issue. It's part of being a responsible adult.
Maybe the camera shows me making a rolling right turn on red 10 minutes before the accident and I don't want to have a $500 red light violation on my record just because I had a camera. Or maybe I don't want the right turn on red used as evidence against me to show that I'm a reckless driver even if the red light violation had nothing to do with the accident.
Do *you* want a car camera that records your every move and can be reviewed by police to give you a ticket for every violation you committed in the past week? Are you *sure* you signaled 100 feet before that intersection? Do you know that you never crept 1mph above the speed limit? The camera knows.
Then try not having a romp with your mistress in front of a video camera that you know is there. (assuming just not having a mistress to be ashamed of is not an option for you)
What I do with my mistress is my own business, what my wife and I think about it is *our* business, there should be no reason to fear that what my own camera records will someday become part of a court record despite my own objection.
I'm Scottish, I'm about 40, I've never heard it in common usage. My mum says it used to be common before the war.
From a bit of investigating, it looks like 60 "lb" is really 27kg, which isn't very heavy - about normal for a smallish car battery, the sort of thing you could pick up like a lunchbox and carry about.
A smallish car battery like what you'd find in a Honda Civic weighs 13kg, not 27kg and has about 45Ah of capacity, even in the UK:
http://www.thebatteryguys.co.uk/category/car/honda
60lb (~5 stone to put it in units you can understand)
A whatnow? Presumably that depends on the size of stone, and what sort of rock it's made of?
Huh, you'd think that someone from the UK would be familiar with Stone. It may not be as common as it used to be, but my wife's Scottish grandma still uses it.
So what the query really is, "I want a camera that I can use when the accident is someone else's fault and I can pretend doesn't exist when the accident is my fault?". After all the cameras only record a certain amount of time and then overwrite previously recorded video, hence there isn't much worry for loss of privacy.
Exactly - what's wrong with that? If the other guy wants a camera to prove it's my fault, let him get his own camera, don't expect me to use my camera to prove my own guilt.
But even if the camera only records 30 minutes or an hour of video, there are still privacy concerns. If I'm in an accident 30 minutes after a quick romp on the hood of my car with my mistress, I sure don't want my wife seeing that video when they play it back in court.
I'm pretty sure you could do some suspend magic to make it draw less power, and I can't really think of any reason why you'd need to have it sitting idle-but-powered with the engine off for more than a couple of hours.
You could, but you'd run the risk of having it fail to wake up -- my laptop fails to wake up properly from sleep mode about once a month (that's both my home laptop running linux and my work laptop running windows). That means it would happen about once every week or two in my car based on the number of times I start my car.
A 90Ah battery is fairly small and inexpensive, and certainly smaller than the existing battery in my car. It's certainly not heavy, compared to the rest of the stuff I carry about
I guess that depends on your definition of small, inexpensive, and heavy:
http://www.impactbattery.com/upg-ub12900-z1-group-27-12-volt-90ah-battery.html?gclid=CKu399uFnrYCFcdxQgodDksAWA
12" x 6.6" x 9.1" (306mm x 168mm x 232mm).
60lb (~5 stone to put it in units you can understand)
$222 USD
A typical car battery in the US is 9.3" x 5.1" x 8.8"
http://www.interstatedealers.com/IBCatalog/common/automotive_spec.pdf
(this is for the 51R size - it fits a Honda Civic)
I'm not sure what an "lb" is but the 110Ah battery for the car is about 30kg.
The lb, or pound is around .07 stone.
The battery I quoted above weighs 28 lbs (12kg) and has 85 minutes of reserve capacity at 25 amp draw (that's how they quote it) , or 35Ah of reserve capacity. It would probably last longer at a 1.5A draw, maybe 50Ah.
I'd like to know what kind of car battery you have with 110Ah of reserve, even the battery for a heavy-duty FOrd F350 Diesel pickup is 12x7x7, and weighs 41lb (18kg) and has 62Ah of reserve.
So, as I said, a 90Ah deep cycle battery is larger and heavier than a typical car battery.
yes, something small LIKE the raspberry Pi, but something that has enough power to encode and encrypt a real time video stream. I don't think rPI has hardware assisted encryption or encoding, so I doubt it could do the job.
The video camera for the Raspberry Pi is reported to be able to record 1080p at 30 frames/second:
http://venturebeat.com/2013/02/06/raspberry-pi-camera-module/
I don't know if there's enough left over to do encryption at the same time, but maybe you could cut the frame rate in half and record 15 frames/second to allow more time for encryption. 15fps (or 1 frame eery 66ms) is probably good enough for a car cam.
If the hardware crypto is confiscated, won't it have the private key?
Not if you don't store it on the device - with public key cryptography you can encrypt with your public key (and you can give that public key to the world), but only your private key can decrypt, which you've stored someplace safe.
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.
Deep cycle battery and a split-charging relay. If I'm leaving the vehicle parked up for more than a day or so, I'll just power all the computery stuff off.
A Bobcat E-350 system including power supply is going to draw around 16 watts when idle, so figure 1.5 amp @ 12V. If you want it to last a day or so (2 days?) you'll need a 72 Amp-hour battery, but you won't want to discharge it too deeply, so let's go with a 90 amp-hour battery to be safe. So you're talking about a $200, 70 lb battery that's bigger than your car battery just to keep this thing powered for 2 days. That's a lot of extra weight to carry around just to run a camera.
Not really. He never mentioned why he exactly wanted it to be encrypted. It also deletes the evidence of the police doing something wrong. What if it was a cop that ran the red light but said it was you? What if you pull up and see a cop beating someone?
He said he wants to record video but keep it safe from prying eyes, doesn't that say exactly why he wants to encrypt it?
He said nothing about wanting to keep it safe from confiscation or destruction by the police, that's a much different problem that isn't solved by encryption - he just doesn't want them to be able to view the video.
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.
How do you handle the power getting shut off to the CPU several times a day as the car is driven? You can't let it run all the time, it may be "low power", but it's not "no power". If you wait 10 - 20 seconds for it to boot every time you start up the car, then you miss the video of me having some car slam into me when I'm pulling out of the driveway.
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.
Then problem solved, right? He's looking for protection from having his own evidence used against him.
If the police are searching his car and seizing SD cards, I don't think they are going to casually steal the card and format it. If they are searching the car, the card (and everything in the car) is evidence and it will be bagged and stored with the rest of the evidence, and possible will undergo forensic analysis if they think there's useful data on it. Even if they don't know the data is encrypted, when they see gigabytes of data stored in a format they can't read, they'll just assume it's a new video file format that they can't play back.
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!".