Random noise has several testable statistical properties. All n-bit values appear about equally often, if this n-bit value is x the probability that the next n-bit value is x is 2^^-n, and so forth. The longer the message, the more exactly these probabilities can be tested.
Almost all possible messages pass the tests for random noise. Almost all sets of data that people care about do not pass the tests for random noise. So, the cryptanalyst applies these tests and looks more carefully at any decryption that doesn't pass the tests for random noise.
Knowing what encryption method was used or what message is being sent helps immensely, though.
When I came out of college I had two offers: Oracle and Lawrence Livermore National Labs. Oracle had volleyball and a party at someone's house after the interview. LLNL didn't. I joined Oracle.
The focus is still on shutting down search engines. Because all the search engines are centralized, which makes them an easy target. Would someone please release a distributed index? That would make the index harder to shut down than the content itself. Laws are being written wrong, all because of a simple technical problem!
I don't care about free music. But I do care about search engines. Search engines the greatest thing since sliced bread. I don't want them to go away.
I want to buy empty ads for Google and write it off as a tax donation. That way Google keeps running, they don't run ads, I've helped humanity help itself, and I get a tax writeoff.
Is that possible? Legal? It should be. It seems like more bang for the donated buck nowadays than donating to libraries.
Folks, do something productive instead: learn programming and drive Steinberg and Powell's other clients out of existence by writing better open source software; don't blindly post their stuff
Which brings us to software patents, which make it illegal to distribute said open source software once you've written it.
I don't think subscription-based software makes much sense for PCs.
On the other hand, subscriptions to remote services are a natural. Users never have a copy of the software so running the old version isn't an option. Users don't have to worry about upgrades, someone else does that for them, so upgrading doesn't even have to be noticed. Feature bloat isn't a problem, the user doesn't have to worry about storing the executable anyhow.
About having student petitions or student surveys:
When I was in high school there was a mandatory "High Intensity Reading Course". It was mandatory because, as everyone has heard, high school students can't read. I surveyed 76 students with the question "Have you ever learned anything, anything at all, in HIRC?" The results were 75 "no" and 1 "I learned something about chipmunks". I reported this to the person on the school board in charge of HIRC.
The response was, "I don't care what you and your friends think." I didn't pursue it further.
So, there you go, data point. Students' opinions don't count. He's right, any petition has to be from parents, not students.
I threw together a proposal for this, calling them Booga Trees.
The basics are:
Everyone sharing a file needs to store at least one leaf of the tree
When you store a leaf of the tree you also have to store all the nodes in the path from the root to the leaf. This means there are an exponential number of copies of the higher nodes.
The standard format of a node is an XML fragment, and is also an HTML list. So these things can be built and navigated by hand immediately, as well as by new search software later.
Exact key lookup takes O(logN) time to look through O(logN) sites when there are N sites. Maintenance is O(logN) per path-to-leaf too. There's no central point of failure, in fact having half the network go down has little effect beyond the leaves in that part of the network being inaccessible.
They say they give 100,000 person conglomerations (OK, 400,000 now).
If they said there was 1 Guatamalan family with 10 kids and a Porsche, sure, you could identify that family.
But if they say there is 1 Guatamalan family, 100 family with 10 kids, and 1000 families with Porsches, I don't see how you could identify them.
Do they report the first or the second? I thought they reported the second. If they're reporting the first, what do they mean by 100,000 family groupings? That sounds more like 1 family groupings to me.
Here's an applet simulating Cruithne's orbit for as long as you care to watch it. I don't know how accurate it is, but it does show the horseshoe orbit and start to fall apart around 5000 years just as the article said. http://burtleburtle.net/bob/physics/cruithne.html
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Random noise has several testable statistical properties. All n-bit values appear about equally often, if this n-bit value is x the probability that the next n-bit value is x is 2^^-n, and so forth. The longer the message, the more exactly these probabilities can be tested.
Almost all possible messages pass the tests for random noise. Almost all sets of data that people care about do not pass the tests for random noise. So, the cryptanalyst applies these tests and looks more carefully at any decryption that doesn't pass the tests for random noise.
Knowing what encryption method was used or what message is being sent helps immensely, though.
When I came out of college I had two offers: Oracle and Lawrence Livermore National Labs. Oracle had volleyball and a party at someone's house after the interview. LLNL didn't. I joined Oracle.
The focus is still on shutting down search engines. Because all the search engines are centralized, which makes them an easy target. Would someone please release a distributed index? That would make the index harder to shut down than the content itself. Laws are being written wrong, all because of a simple technical problem!
I don't care about free music. But I do care about search engines. Search engines the greatest thing since sliced bread. I don't want them to go away.
I want to buy empty ads for Google and write it off as a tax donation. That way Google keeps running, they don't run ads, I've helped humanity help itself, and I get a tax writeoff.
Is that possible? Legal? It should be. It seems like more bang for the donated buck nowadays than donating to libraries.
Folks, do something productive instead: learn programming and drive Steinberg and Powell's other clients out of existence by writing better open source software; don't blindly post their stuff
Which brings us to software patents, which make it illegal to distribute said open source software once you've written it.
I don't think subscription-based software makes much sense for PCs.
On the other hand, subscriptions to remote services are a natural. Users never have a copy of the software so running the old version isn't an option. Users don't have to worry about upgrades, someone else does that for them, so upgrading doesn't even have to be noticed. Feature bloat isn't a problem, the user doesn't have to worry about storing the executable anyhow.
About having student petitions or student surveys:
When I was in high school there was a mandatory "High Intensity Reading Course". It was mandatory because, as everyone has heard, high school students can't read. I surveyed 76 students with the question "Have you ever learned anything, anything at all, in HIRC?" The results were 75 "no" and 1 "I learned something about chipmunks". I reported this to the person on the school board in charge of HIRC.
The response was, "I don't care what you and your friends think." I didn't pursue it further.
So, there you go, data point. Students' opinions don't count. He's right, any petition has to be from parents, not students.
I threw together a proposal for this, calling them Booga Trees.
The basics are:
Exact key lookup takes O(logN) time to look through O(logN) sites when there are N sites. Maintenance is O(logN) per path-to-leaf too. There's no central point of failure, in fact having half the network go down has little effect beyond the leaves in that part of the network being inaccessible.
They say they give 100,000 person conglomerations (OK, 400,000 now).
If they said there was 1 Guatamalan family with 10 kids and a Porsche, sure, you could identify that family.
But if they say there is 1 Guatamalan family, 100 family with 10 kids, and 1000 families with Porsches, I don't see how you could identify them.
Do they report the first or the second? I thought they reported the second. If they're reporting the first, what do they mean by 100,000 family groupings? That sounds more like 1 family groupings to me.
Here's an applet simulating Cruithne's orbit for as long as you care to watch it. I don't know how accurate it is, but it does show the horseshoe orbit and start to fall apart around 5000 years just as the article said. http://burtleburtle.net/bob/physics/cruithne.html