Wikipedia-link: http://en.wikipedia.org/wiki/OLED
Wikipedia states that the main advantage is that (apart from the contrast ratio and the response times) it doesn't need back-lighting and thus has a lower power-consumption.
Will this also be true for very large OLED displays? I can imagine that, since every single pixel has to light up by itself, it can be more efficient to use a backlight. Anyone has an idea about the power consumption per pixel for OLEDs and TFT/LCD?
Whether it's 32 characters depends on what encoding do you use;-)... Actually, it's 32 hexadecimal digits.
As far as I know, md5 128 bit-digests do indeed have 2^128 possible values. This is "only" 340,282,366,920,938,463,463,374,607,431,768,211,45 6 possible hashes.
When looking closer at the "find a collision"-challenge, you can distinguish 3 different challenges:
just find 2 random messages having the same hash
find a random message that has the same hash as a given message
find a message for the given hash
The last problem is the most difficult one to solve. So far, nobody can do this in a reasonable amount of time. So your md5-hashed passwords are safe for a while.
The second one apparears to be solveable in a reasonable amount of time (I saw the formula somewhere but I can't find it. Anyone?). So this breaks md5 for using it as a hash function for certificates.
The first problem also gets solved in a reasonable amount of time but it doesn't pose a threat on any algorithm. As you stated in your post, there ARE collisions due to the fact that there are less hashes than possible inputs.
17th century Egyptians didn't really care about pyramids and pharaohs. It was not part of their arab cultural heritage. Maybe most of them didn't even know they once existed.
In your statement, the Egyptians would not take Jeffersons corpse but the corpse of a Native American that no one ever heard of that was buried 2000 years ago.
You know, a guy like Ötzi the iceman (the guy that was found somewhere in an ice cube in the Alps). Did you ever see the Swiss protest because of the way ötzi was treated?
By the way: "Show your mom" boosted history research all over Europe. Without this research, nobody would ever know how to value and interpret the massive monuments Egyptians left us (actually, the Aswan-dam would have flooded half of them)
Actually, France, England etc. once colonized or conquered Egypt. At the time, it was very common to import artifacts of the newly conquered lands to the home country. Some countries even exposed the local (uncivilised) people of their newly conquered territories.
Instead of taking a picture of an obelisk, you would just take the obelisk with you (the obelisk on the "place de la concorde" in paris is an original specimen brought by Napoleon on his Egyptian campaign) to be able to show your mom where it was you were.
In my opinion, those "stolen" atrifacts have contributed much much more to mankind and science than they would possibly have could while buried in a grave...
Re:And here I am...
on
Where's Alviso?
·
· Score: 0, Offtopic
I forgot two things (damn, I should have used the preview)
Use line breaks
Note that the first step is actually not a very wise thing to do. Don't try it at home!
Re:And here I am...
on
Where's Alviso?
·
· Score: -1, Offtopic
Solution
1) marry
2) fetch your mother-in-law's wheelchair
3) attach a rocket engine
4) pretend you are raising funds for parkinson-patients
5) profit !
6) get that Athlon 64!
generally is a free race-game that allows multiple people to play the game on the same keyboard. Great fun. And a good community creating tons of maps to race on.
Slashdot Mirror
...were they lame enough to use the AWP or the riot shield?
Wikipedia-link: http://en.wikipedia.org/wiki/OLED Wikipedia states that the main advantage is that (apart from the contrast ratio and the response times) it doesn't need back-lighting and thus has a lower power-consumption. Will this also be true for very large OLED displays? I can imagine that, since every single pixel has to light up by itself, it can be more efficient to use a backlight. Anyone has an idea about the power consumption per pixel for OLEDs and TFT/LCD?
Gigapixel photography using several camera's is not nearly new.
Would be nice to combine this with the insect-eating robot that was mentioned a few days ago.
Bye bye mosquito's!!
As far as I know, md5 128 bit-digests do indeed have 2^128 possible values. This is "only" 340,282,366,920,938,463,463,374,607,431,768,211,4
When looking closer at the "find a collision"-challenge, you can distinguish 3 different challenges:
- just find 2 random messages having the same hash
- find a random message that has the same hash as a given message
- find a message for the given hash
The last problem is the most difficult one to solve. So far, nobody can do this in a reasonable amount of time. So your md5-hashed passwords are safe for a while.The second one apparears to be solveable in a reasonable amount of time (I saw the formula somewhere but I can't find it. Anyone?). So this breaks md5 for using it as a hash function for certificates.
The first problem also gets solved in a reasonable amount of time but it doesn't pose a threat on any algorithm. As you stated in your post, there ARE collisions due to the fact that there are less hashes than possible inputs.
17th century Egyptians didn't really care about pyramids and pharaohs. It was not part of their arab cultural heritage. Maybe most of them didn't even know they once existed.
In your statement, the Egyptians would not take Jeffersons corpse but the corpse of a Native American that no one ever heard of that was buried 2000 years ago.
You know, a guy like Ötzi the iceman (the guy that was found somewhere in an ice cube in the Alps). Did you ever see the Swiss protest because of the way ötzi was treated?
By the way: "Show your mom" boosted history research all over Europe. Without this research, nobody would ever know how to value and interpret the massive monuments Egyptians left us (actually, the Aswan-dam would have flooded half of them)
Actually, France, England etc. once colonized or conquered Egypt. At the time, it was very common to import artifacts of the newly conquered lands to the home country. Some countries even exposed the local (uncivilised) people of their newly conquered territories.
Instead of taking a picture of an obelisk, you would just take the obelisk with you (the obelisk on the "place de la concorde" in paris is an original specimen brought by Napoleon on his Egyptian campaign) to be able to show your mom where it was you were.
In my opinion, those "stolen" atrifacts have contributed much much more to mankind and science than they would possibly have could while buried in a grave...
Solution 1) marry 2) fetch your mother-in-law's wheelchair 3) attach a rocket engine 4) pretend you are raising funds for parkinson-patients 5) profit ! 6) get that Athlon 64!
Why not go all the way? Grow yourself an exo-skeleton!
Changing a single gene in mice turns them from couch potatos into super-athlete mice. Sounds like logitech marketing chit-chat to me...
generally is a free race-game that allows multiple people to play the game on the same keyboard. Great fun. And a good community creating tons of maps to race on.