it will slow people down. maybe long enough to recover the data or somehow make it less useful (change ids, passwords, etc). even good encryption will eventually fail. the best you can do is to make it difficult.
"slow people down- _MAYBE_ long enough?" If 2^191 years isn't long enough to change your passwords then the only possible reason is that you are dead.
Just the act of counting from 1 to 2^256 at a rate of 1 trillion keys per second would take approximately 2^191 years (3 x 10^57).
That's 3,000,000,000,000,000,000,000,000,000,000,000,000, 000,000,000,000,000,000,000 years.
Assuming you find the key about half way through the search (on average) that's still 2^190 years.
This is WAY longer than the universe has been in existence and probably longer than it will continue to exist in the future. That's just counting the keys. Actually testing them would probably slow your key rate down significantly.
The math as I see it:
1 trillion keys per second = 2^40
2^40 * 86,400 * 365 = 3.4 x 10^19 keys per year
- or 2^65 keys per year
2^256 keys / 2^65 keys per year = 2^191 years (256 - 65 = 191)
Just the act of counting from 1 to 2^256 at a rate of 1 trillion keys per second would take approximately 2^191 years (3 x 10^57).
That's 3,000,000,000,000,000,000,000,000,000,000,000,000, 000,000,000,000,000,000,000 years.
This is WAY longer than the universe has been in existence and probably longer than it will continue to exist in the future. That's just counting the keys. Actually testing them would probably slow your key rate down significantly.
The math as I see it:
1 trillion keys per second = 2^40
2^40 * 86,400 * 365 = 3.4 x 10^19 keys per year
- or 2^65 keys per year
2^256 keys / 2^65 keys per year = 2^191 years (256 - 65 = 191)
You can do the same thing with OpenBSD (which I run). I guess I would perfer there to be absolutely no way to write to the disk without it being encrypted. I would also prefer the speed advantadges of hardware encryption.
I've been looking for an encrypted hard drive controller- something that looks to the OS like a normal disk but every single byte written to the disk is encrypted. The moment the power is pulled the key is lost and needs to re-entered when the system reboots. It would look like a disk error but when the "Non-system or disk error" message comes up you enter the key and the system boots normally.
I would prefer there not be any chance of the OS leaving around un-encrypted information on the swap partition or hacing a back door or any other stupidity. I've seen encrypted controllers but only with 40 bit keys. I'd love to see something with an AES 256 bit key. If nothing is out there I may just have to put together something using an FPGA.
The the mirrors in a DMD (Digital Micromirror Device- used by DLP's) are under little stress and rarely fail. Most have undergone extensive testing and failure has never been a significant problem. Go to several stores, look at the available models- read the reviews for each unit and manufacturer and buy whichever one looks best to you.
An even better question is why the fuck are you browsing the web with an account that has permissions to install software? You don't browse the web from your Linux box as root do you? No you don't but people happily browse the web as administrator on a Windows box and then wonder why things go south. If you let the average user onto a Linux box with root privileges I doubt it would last a week.
Although I hate Microsoft- don't blame them for the incompetence of a stupid admin. I've worked with plenty of companies to set up Windows networks where no one has admin (or even poweruser privileges) and you don't find any spyware infestations.
No tech I know of wants to utter the letters/words TCP/IP around a management type. We know it won't end well so we don't go there in the first place. Tell us what you want in plain english and we will tell you if we can deliver it, the costs, and the time frame. If there are particular technical reasons that we can't make it work then we will tell you that. We can't help it if you ask for the technical reasons and then you completely fail to understand when we explain them to you.
No one has come close to matching the iPod Nano for size, style and simplicity of use. Full color screen, 4 gigs of space, but best of all- it just works. I'm happy to screw with my FreeBSD and Linux servers when they aren't behaving correctly but when it comes to my mp3 player i just want it to work. I've checked out plenty of other offerings and resisted an iPod as long as possible but none were as clean to use- period.
Perhaps you missed the news about the minivan on the NY Thruway which was smashed to little pieces after stopping in the right lane of traffic. 4 people were killed and 2 critically injured after they were rear-ended by a tractor trailer traveling at 65 MPH.
Now perhaps you would like to reconsider your asinine comment.
It's not a question of "they won't take my money." It's a question of "I paid for the right to play a game and I am being denied that right." Blizzard and this person had a contract- he invested his time and money and Blizzard has to provide him with a fun gaming experience. There are certain rules that both sides have to abide by- only from the article it appears that the player stayed within the rules whereas Blizzard broke them (The "multiple violations required for a ban" rule). That is a broken contract and he has every right to sue Blizzard. Will it make a damned bit of difference? probably not but just harrassing Blizzard would be worth it.
Frankly I would love to see gamers create a union and when a company breaks the rules they simply walk out- when the company loses enough revenue maybe they will stop acting like asses.
Having said all of this I can't begin to fathom sitting around all day playing these mind numbing games- get some freaking hobbies- take up painting, learn to play the guitar, restore a classic car. You girlfriend (or the ladies) would much rather go for a ride in your classic Mustang than take a virtual ride in a video game.
Just the other day I was gong to do soemthing similar to mine- Machine a tight fitting case and end cap out of aluminum, coat the flash itself in epoxy and install it into the aluminum housing. Put an o-ring on the cap and make it watertight is my goal:)
Better yet let someone else worry about it- Contact a company like VideoSave. They have cameras with an onsite staging server. Feeds are then uploaded to their colo facility from which you can view any camera stream over an SSL protected session.
You're absolutely right. I've had numerous people comment that my basement is cleaner than their datacenter. For me it is a simple case of "I can't fix what I can't find." I've been to far too many datacenters in which the cables run all over the place, are in complete tangles, and would be impossible to troubleshoot.
On the front of a rack I always use a cable just long enough to reach with a minimum of play. Tracing a wire is greatly simplified because you can just follow it instead of trying to keep track of it inside some bundle. On the back side of a rack I always number both ends of the cable so that I can find a cable on one side, grab it's number and find it on the other side. Although that should be standard practice often times it is not.
I got asked this question in an interview one time- pointed the guy to my web site which has pictures of the network and got the job on the spot:)
At the time the datacenter in the basement alone had:
4 x P2 400- 512MB RAM- SCSI Disks running FreeBSD
1 x SS10- 384 MB RAM- Quad Fast Ethernet- Dual SM81 Processors (80MHz, 1 meg cache)- Dual NVSIMMS (Non-volatile write cachine SIMMS running Solaris
1 x SS10- 512 MB RAM- Quad Fast Ethernet- Single SM81 running Solaris.
Cisco 2503 Router
3 x DEC AlphaSation 4-233's with 256 MB RAM running FreeBSD.
3 x IBM Dual proc PPRO 200's with 256 MB RAM running FreeBSD.
2 smaller systems that I don't even rmemeber what they are or run.
Ethernet Hub for traffic dumps.
Intel 24 port 10/100 managed Ethernet Switch.
Dual KVM's
16 Port unmanaged 10/100 switch for internal network
2 x APC SmartUPS 1400RM.
In addition to the racks in the basement there were:
HP LJ 4050DN with duplexer
DJ 870 Color inkjet with print server
Various other computers in the house including laptops, etc.
Wireless routers and access points
Various hardare based firewalls
Etc.
I've added plenty of other fun and interesting systems including a Cisco 2611 and other fun equipment but I haven't gotten pictures of any of it recently. Most of this has since been replaced with Mini-itx systems because my power bill had climbed over $300 per month.
First- although I never said 80 years- why shouldn't they last that long? What is going to fail? Second- NY doesn't have power problems in the winter- we have it in the summer where everyone is using AC all day long.
Although I don't believe wind generators have nearly as many problems as some people would have you believe- they are definitely eye sores and not exactly friendly to birds. I really don't want to wake up in the morning only to find a hawk or an eagle shredded on my front lawn. I like to wake up in the morning and look out over the mountains to see a forest full of trees- I don't want to see a forest full of wind turbines.
Troll? Hardly. The poster is right- NYC accounts for 60% of state education taxes but only gets 40% back (Or so- there was a bloody lawsuit which the City won because of this). The same problems exist with the rest of the tax revenue- If anyone gets shafted it is the city not the state. It's not like the farmlands upstate are making any serious contribution when compared with an island packed with Multi-million and billion dollar corporations.
Getting back to the topic at hand- why don't we put the power generation right where it is used- Solar panels on the roof of your house. Roof mounted panels don't look any worse than a roof and while they aren't as efficient as some would like the have no moving parts, require no maintenance and they last basically forever. The same can not be said about wind. Even if the panels don't generate all the power needed for the house every little bit helps.
Look at the numbers for a second- they mention 2-4 million per tower- not including routine maintenance. For 4 million you can buy 4,000 solar panels (at $1000 per panel- more than current retail but a simpler number to work with)- with 200 watt panels that's 800 kilowatts with no maintenance costs and a panel that is unlike to fail in your lifetime. Figure in the volume discounts and eventual cost reductions and set that aside for installation costs.
I don't want to argue the energy used to make the panels or any environmental damage their manufacture causes- building a wind turbine takes energy and has an environmental impact as well- but turbines require maintenance and look awful. I'm also not talking about a battery based solar system- solar generates power during the day when most people need it and not at night when far less power is used- let the grid handle the nighttime power and let solar handle daytime. (It's not as if wind is always productive either.)
Before all this however- how about some damned conservation? Charge people a cheap rate for the first X kilowatts based on what the average family should be using and then charge them progressively more as they use more and more power.
Oh well- just my two cents. In the end I think we need nuclear fusion so what do I know.
"OK, if that's what you MEAN, then that's what you should TYPE. This is the internet."
I couldn't have said it better myself- this is the Internet- welcome to it. People type quickly, state hyperboles and take many liberties with the English language on the Internet. Moreover this is Slashdot where everthing is exagerated 100 fold- get use to it.
"You sounded like an extreme libertarian or anarchist, saying that the government *never* listen in on a conversation."
Glad to hear one us sounds like a libertarian. Would we have had the American Revolution if the British government had been able to track down all the revolutionaries simply by looking up phone records in a database?
So seriously- who is to decide when it is ok to listen in? You? What are you going to do in a few years if revolution becomes the only means to fix our government, only you can't revolt because the government can track you down any time they want to by your phone records and wire taps and the like?
I'm not scared of being killed by a terrorist- I'm terrified of being slowly smothered by a repressive government. We're becoming more and more like the communists we use to dread every day. In "We The Living" Kira asks Andrei: 'Andrei, why doesn't your Party believe in the right to live while one is not dead?' Left unchecked, that's exactly where our country is headed.
In "A Historical Review of Pennsylvania," Benjamin Franklin said "They that would give up essential liberty, for a little temporary safety, deserve neither liberty nor safety."
There is always a plethora of pedantic jackasses on Slashdot. First off- try quoting everything I said and not what you want to cherry pick.
What I said was: "If I call my friend up to chat about the old college days I absolutely have a right to privacy. What I talk to an old friend is ABSOLUTELY none of the governments business."
Let me restate this in a way that will make you happy- "The government has ABSOLUTELY no right to UNILATERALLY log or monitor the calls of it's citizens."
Thomas Jefferson once wrote: "As revolutionary instruments (when nothing but revolution will cure the evils of the State) [secret societies] are necessary and indispensable, and the right to use them is inalienable by the people." --Letter to William Duane, 1803.
How can one work to keep the government in check, or overthrow it if necessary if the government can keep complete track of a persons communications?
And if you have probable cause then get a warrant and tap the line. But keeping a record of every call and communication that everybody makes on the off chance that a terrorist may have made a call? No way.
But just recently the right of privacy seems to be implicit to your freedom of speech. With freedom of speech (At least the American ideal) you should be able to state your views without getting arrested for it. But it doesn't state that you can say it without anyone knowing that you said it.
If I call my friend up to chat about the old college days I absolutely have a right to privacy. What I talk to an old friend is ABSOLUTELY none of the governments business.
I'm astonished at how some people in the United States act. NYC recently implemented random bag searches in the subway- only they can only search your bags and only before you get on the subway- if you don't want to be searched you can walk away (exactly what kind of terrorist this is supposed to catch is beyond me and a subject for another debate). What astounds me about this, however, is just how many people go out of their way to be searched. If the cops don't call you over to be searched you don't have to stop- I've walked past every time without being stopped. Some people, however, walk over to the cops, open their bags and show them the contents without being asked. I have no idea what society I am living in but I would love to find some place in this world where people actually have self respect and care about their rights.
Slashdot Mirror
it will slow people down. maybe long enough to recover the data or somehow make it less useful (change ids, passwords, etc). even good encryption will eventually fail. the best you can do is to make it difficult.
, 000,000,000,000,000,000,000 years.
"slow people down- _MAYBE_ long enough?" If 2^191 years isn't long enough to change your passwords then the only possible reason is that you are dead.
Just the act of counting from 1 to 2^256 at a rate of 1 trillion keys per second would take approximately 2^191 years (3 x 10^57).
That's 3,000,000,000,000,000,000,000,000,000,000,000,000
Assuming you find the key about half way through the search (on average) that's still 2^190 years.
This is WAY longer than the universe has been in existence and probably longer than it will continue to exist in the future. That's just counting the keys. Actually testing them would probably slow your key rate down significantly.
The math as I see it:
1 trillion keys per second = 2^40
2^40 * 86,400 * 365 = 3.4 x 10^19 keys per year
- or 2^65 keys per year
2^256 keys / 2^65 keys per year = 2^191 years (256 - 65 = 191)
- or 3 x 10^57 years
This is a training problem and it will not work in the company I work for- but we take security pretty seriously.
-sirket
Just the act of counting from 1 to 2^256 at a rate of 1 trillion keys per second would take approximately 2^191 years (3 x 10^57).
, 000,000,000,000,000,000,000 years.
That's 3,000,000,000,000,000,000,000,000,000,000,000,000
This is WAY longer than the universe has been in existence and probably longer than it will continue to exist in the future. That's just counting the keys. Actually testing them would probably slow your key rate down significantly.
The math as I see it:
1 trillion keys per second = 2^40
2^40 * 86,400 * 365 = 3.4 x 10^19 keys per year
- or 2^65 keys per year
2^256 keys / 2^65 keys per year = 2^191 years (256 - 65 = 191)
- or 3 x 10^57 years
It is stored in one of the FPGA embedded RAM blocks and is wiped the moment power is lost.
You can do the same thing with OpenBSD (which I run). I guess I would perfer there to be absolutely no way to write to the disk without it being encrypted. I would also prefer the speed advantadges of hardware encryption.
Exactly how do you propose to get at a disk encrypted with a 256 bit AES key? or a 448 Bit BlowFish key?
-sirket
I've been looking for an encrypted hard drive controller- something that looks to the OS like a normal disk but every single byte written to the disk is encrypted. The moment the power is pulled the key is lost and needs to re-entered when the system reboots. It would look like a disk error but when the "Non-system or disk error" message comes up you enter the key and the system boots normally.
I would prefer there not be any chance of the OS leaving around un-encrypted information on the swap partition or hacing a back door or any other stupidity. I've seen encrypted controllers but only with 40 bit keys. I'd love to see something with an AES 256 bit key. If nothing is out there I may just have to put together something using an FPGA.
-sirket
The the mirrors in a DMD (Digital Micromirror Device- used by DLP's) are under little stress and rarely fail. Most have undergone extensive testing and failure has never been a significant problem. Go to several stores, look at the available models- read the reviews for each unit and manufacturer and buy whichever one looks best to you.
-sirket
An even better question is why the fuck are you browsing the web with an account that has permissions to install software? You don't browse the web from your Linux box as root do you? No you don't but people happily browse the web as administrator on a Windows box and then wonder why things go south. If you let the average user onto a Linux box with root privileges I doubt it would last a week.
Although I hate Microsoft- don't blame them for the incompetence of a stupid admin. I've worked with plenty of companies to set up Windows networks where no one has admin (or even poweruser privileges) and you don't find any spyware infestations.
-sirket
No tech I know of wants to utter the letters/words TCP/IP around a management type. We know it won't end well so we don't go there in the first place. Tell us what you want in plain english and we will tell you if we can deliver it, the costs, and the time frame. If there are particular technical reasons that we can't make it work then we will tell you that. We can't help it if you ask for the technical reasons and then you completely fail to understand when we explain them to you.
-sirket
No one has come close to matching the iPod Nano for size, style and simplicity of use. Full color screen, 4 gigs of space, but best of all- it just works. I'm happy to screw with my FreeBSD and Linux servers when they aren't behaving correctly but when it comes to my mp3 player i just want it to work. I've checked out plenty of other offerings and resisted an iPod as long as possible but none were as clean to use- period.
-sirket
Perhaps you missed the news about the minivan on the NY Thruway which was smashed to little pieces after stopping in the right lane of traffic. 4 people were killed and 2 critically injured after they were rear-ended by a tractor trailer traveling at 65 MPH.
Now perhaps you would like to reconsider your asinine comment.
-sirket
It's not a question of "they won't take my money." It's a question of "I paid for the right to play a game and I am being denied that right." Blizzard and this person had a contract- he invested his time and money and Blizzard has to provide him with a fun gaming experience. There are certain rules that both sides have to abide by- only from the article it appears that the player stayed within the rules whereas Blizzard broke them (The "multiple violations required for a ban" rule). That is a broken contract and he has every right to sue Blizzard. Will it make a damned bit of difference? probably not but just harrassing Blizzard would be worth it.
Frankly I would love to see gamers create a union and when a company breaks the rules they simply walk out- when the company loses enough revenue maybe they will stop acting like asses.
Having said all of this I can't begin to fathom sitting around all day playing these mind numbing games- get some freaking hobbies- take up painting, learn to play the guitar, restore a classic car. You girlfriend (or the ladies) would much rather go for a ride in your classic Mustang than take a virtual ride in a video game.
-sirket
Just the other day I was gong to do soemthing similar to mine- Machine a tight fitting case and end cap out of aluminum, coat the flash itself in epoxy and install it into the aluminum housing. Put an o-ring on the cap and make it watertight is my goal :)
-sirket
Better yet let someone else worry about it- Contact a company like VideoSave. They have cameras with an onsite staging server. Feeds are then uploaded to their colo facility from which you can view any camera stream over an SSL protected session.
-sirket
You're absolutely right. I've had numerous people comment that my basement is cleaner than their datacenter. For me it is a simple case of "I can't fix what I can't find." I've been to far too many datacenters in which the cables run all over the place, are in complete tangles, and would be impossible to troubleshoot.
On the front of a rack I always use a cable just long enough to reach with a minimum of play. Tracing a wire is greatly simplified because you can just follow it instead of trying to keep track of it inside some bundle. On the back side of a rack I always number both ends of the cable so that I can find a cable on one side, grab it's number and find it on the other side. Although that should be standard practice often times it is not.
-sirket
At the time the datacenter in the basement alone had:
In addition to the racks in the basement there were:
I've added plenty of other fun and interesting systems including a Cisco 2611 and other fun equipment but I haven't gotten pictures of any of it recently. Most of this has since been replaced with Mini-itx systems because my power bill had climbed over $300 per month.
http://www.flickr.com/photos/29067610@N00/
-sirket
First- although I never said 80 years- why shouldn't they last that long? What is going to fail? Second- NY doesn't have power problems in the winter- we have it in the summer where everyone is using AC all day long.
Although I don't believe wind generators have nearly as many problems as some people would have you believe- they are definitely eye sores and not exactly friendly to birds. I really don't want to wake up in the morning only to find a hawk or an eagle shredded on my front lawn. I like to wake up in the morning and look out over the mountains to see a forest full of trees- I don't want to see a forest full of wind turbines.
-sirket
Troll? Hardly. The poster is right- NYC accounts for 60% of state education taxes but only gets 40% back (Or so- there was a bloody lawsuit which the City won because of this). The same problems exist with the rest of the tax revenue- If anyone gets shafted it is the city not the state. It's not like the farmlands upstate are making any serious contribution when compared with an island packed with Multi-million and billion dollar corporations.
Getting back to the topic at hand- why don't we put the power generation right where it is used- Solar panels on the roof of your house. Roof mounted panels don't look any worse than a roof and while they aren't as efficient as some would like the have no moving parts, require no maintenance and they last basically forever. The same can not be said about wind. Even if the panels don't generate all the power needed for the house every little bit helps.
Look at the numbers for a second- they mention 2-4 million per tower- not including routine maintenance. For 4 million you can buy 4,000 solar panels (at $1000 per panel- more than current retail but a simpler number to work with)- with 200 watt panels that's 800 kilowatts with no maintenance costs and a panel that is unlike to fail in your lifetime. Figure in the volume discounts and eventual cost reductions and set that aside for installation costs.
I don't want to argue the energy used to make the panels or any environmental damage their manufacture causes- building a wind turbine takes energy and has an environmental impact as well- but turbines require maintenance and look awful. I'm also not talking about a battery based solar system- solar generates power during the day when most people need it and not at night when far less power is used- let the grid handle the nighttime power and let solar handle daytime. (It's not as if wind is always productive either.)
Before all this however- how about some damned conservation? Charge people a cheap rate for the first X kilowatts based on what the average family should be using and then charge them progressively more as they use more and more power.
Oh well- just my two cents. In the end I think we need nuclear fusion so what do I know.
-sirket
Who is this "he" to which you refer? The only person you have been responding to in this thread is me (sirket) and I _AM_ a libertarian.
-sirket
"OK, if that's what you MEAN, then that's what you should TYPE. This is the internet."
I couldn't have said it better myself- this is the Internet- welcome to it. People type quickly, state hyperboles and take many liberties with the English language on the Internet. Moreover this is Slashdot where everthing is exagerated 100 fold- get use to it.
"You sounded like an extreme libertarian or anarchist, saying that the government *never* listen in on a conversation."
Glad to hear one us sounds like a libertarian. Would we have had the American Revolution if the British government had been able to track down all the revolutionaries simply by looking up phone records in a database?
So seriously- who is to decide when it is ok to listen in? You? What are you going to do in a few years if revolution becomes the only means to fix our government, only you can't revolt because the government can track you down any time they want to by your phone records and wire taps and the like?
I'm not scared of being killed by a terrorist- I'm terrified of being slowly smothered by a repressive government. We're becoming more and more like the communists we use to dread every day. In "We The Living" Kira asks Andrei: 'Andrei, why doesn't your Party believe in the right to live while one is not dead?' Left unchecked, that's exactly where our country is headed.
In "A Historical Review of Pennsylvania," Benjamin Franklin said "They that would give up essential liberty, for a little temporary safety, deserve neither liberty nor safety."
-sirket
There is always a plethora of pedantic jackasses on Slashdot. First off- try quoting everything I said and not what you want to cherry pick.
What I said was: "If I call my friend up to chat about the old college days I absolutely have a right to privacy. What I talk to an old friend is ABSOLUTELY none of the governments business."
Let me restate this in a way that will make you happy- "The government has ABSOLUTELY no right to UNILATERALLY log or monitor the calls of it's citizens."
Thomas Jefferson once wrote: "As revolutionary instruments (when nothing but revolution will cure the evils of the State) [secret societies] are necessary and indispensable, and the right to use them is inalienable by the people." --Letter to William Duane, 1803.
How can one work to keep the government in check, or overthrow it if necessary if the government can keep complete track of a persons communications?
And if you have probable cause then get a warrant and tap the line. But keeping a record of every call and communication that everybody makes on the off chance that a terrorist may have made a call? No way.
-sirket
But just recently the right of privacy seems to be implicit to your freedom of speech. With freedom of speech (At least the American ideal) you should be able to state your views without getting arrested for it. But it doesn't state that you can say it without anyone knowing that you said it.
If I call my friend up to chat about the old college days I absolutely have a right to privacy. What I talk to an old friend is ABSOLUTELY none of the governments business.
I'm astonished at how some people in the United States act. NYC recently implemented random bag searches in the subway- only they can only search your bags and only before you get on the subway- if you don't want to be searched you can walk away (exactly what kind of terrorist this is supposed to catch is beyond me and a subject for another debate). What astounds me about this, however, is just how many people go out of their way to be searched. If the cops don't call you over to be searched you don't have to stop- I've walked past every time without being stopped. Some people, however, walk over to the cops, open their bags and show them the contents without being asked. I have no idea what society I am living in but I would love to find some place in this world where people actually have self respect and care about their rights.
-sirket
"It's free fall. You just fall continuously over the horizon. It's falling with style, to quote Buzz Lightyear. ;-)"
:)
I'd like to think of it as falling and forgetting to hit the ground
-sirket