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personalcompute

298 karma · joined February 12, 2011

Contact: john AT johngm.com
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personalcompute··on Introduction to C++ with Game Development
iostream is not part of the STL, just the standard library.
personalcompute··on Those 500K Bitcoins that caused the flash crash weren't real
Probably hardcoded, not in the DB.

In case it isn't clear, MTGox wasn't exactly what you'd call a professional operation.

personalcompute··on Poll: What do you think of Google+?
Can't invite you w/o contact information. Add an email to your bio.
personalcompute··on This blogger.com profile is squatting YC founder's names
Looks like blogger/google took it down.
personalcompute··on Google Bot Attempts to Crawl Shortest URLs First
I did a more scientific analysis of the googlebot requests in the provided log (graph! http://i.imgur.com/uMoUT.png) and it definitely looks like it is taking shortest urls first. Anyone else with a large site want to check as well for further data?
personalcompute··on Google Bot Attempts to Crawl Shortest URLs First
His entire site that he observed this behavior on is static.
personalcompute··on The Bitcoin Crash
BBC has no story, they are parroting MT Gox's reports.
personalcompute··on Why Masked Passwords Are a Serious Security Hole
It is 100% possible actually. They are called temporary generated one-use passwords.
personalcompute··on Firefox 5 is now officially released
Not the intended purpose, but the search box has been very useful to me in the past as a quick second paste-buffer, much quicker than opening a text editor or anything to place it in.
personalcompute··on Japan Reclaims Top Ranking on Latest List of World’s Supercomputers
The raw list: http://www.top500.org/list/2011/06/100
personalcompute··on Depixelizing Pixel Art
I think he means disregarding all that and looking at the raw voxels then applying a modified version of this algorithm, similar to marching cubes.
personalcompute··on 500k Bitcoins traded in 1h, Mt.Gox market hacked + crash
It's public. I have the db loaded in mysql right now, and have confirmed its validity (my account is in there).
personalcompute··on Delete your homepage
People use webapps because they provide some kind of value to them. Housefed.com doesn't tell me what value it provides, so why would I waste my time creating a new password and a new spam-email on absolutely pure unfounded speculation? I actually have negative sentiment towards it now for appearing so arrogant as to think it doesn't have to explain itself.

Really, how does having an explanation hurt? You have nothing backing up your over-the-top linkbait claims in your post.

personalcompute··on JSON users: Avoid CSRFs by not using top-level arrays
They are definitely similar, but I wouldn't say XSSI is a type of CSRF. CSRF refers specifically to a few methods of attack, distinct from what is used in XSSI.

Regardless, it seems CSRF is much more widely known than XSSI, so you could say worrying about the distinction is just pedantry. I was very surprised when I searched earlier and could not so much as find an OWASP mention of XSSI. Still very important to know though.

personalcompute··on JSON users: Avoid CSRFs by not using top-level arrays
He's definitely correct about the false positives and that nonces and/or double submitted cookies are superior, I'm not arguing that, just the 'furthermore, spoofing is extremely easy,' which makes no sense there.
personalcompute··on JSON users: Avoid CSRFs by not using top-level arrays
Yes, but if the user wishes to avoid their own security like this, they can already do it a thousand other ways (and to no adverse affect, there is no opportunity for an attacker to exploit this, I don't know what you're getting at).
personalcompute··on JSON users: Avoid CSRFs by not using top-level arrays
How is spoofing the referer extremely easy? I can think of no way for an attack site to do this, short of having control over the entire user machine (or a significant browser exploit anyways), at which point all of your webapp security is irrelevant.
personalcompute··on JSON users: Avoid CSRFs by not using top-level arrays
Correct, the technical term for it is 'XSSI', or Cross Site Script Inclusion.
personalcompute··on JSON users: Avoid CSRFs by not using top-level arrays
Cross Site Script Inclusion. The article touches on a lot of things (including CSRF), but the HN title refers specifically to JSON (As well as the link's '#' fragment identifier), and therefore the last section, where it shows an attack site including unprotected JSON through the <script> tag, and unless I'm seriously mistaken, this is the definition of XSSI.
personalcompute··on JSON users: Avoid CSRFs by not using top-level arrays
Isn't this XSSI, not CSRF?
personalcompute··on IndexTank / 80legs Crawlathon (developer contest)
Ah, awesome, thank you for the correction, this allows me to continue with my plan. I said that within an hour of registering, but had asked on their support page as well.
personalcompute··on IndexTank / 80legs Crawlathon (developer contest)
Another problem is 80legs will only crawl pages <100kb with the free/contest plan. This means it is useless for all but the smallest pages.
personalcompute··on IndexTank / 80legs Crawlathon (developer contest)
Then post the bitcoin-related whatever to HN. Instant winner.
personalcompute··on [dead]
Link to the CNBC story instead of blogspam then please?

Edit: I believe this is the source: http://www.cnbc.com/id/43378490/. Their source is "people familiar with the matter."

personalcompute··on $10K for solving a math equation
4(9μ + 16φ + 6Ω - 200) + 3Ω - 1 + 2(2Δ - μ) + 9(9β - 5Δ - 3Ω ) = 0

10(4β - 4Δ + 3Ω ) - Δ + μ + β - 3 - 8Ω + 11(5μ - 2Ω + 4φ) = 0

9(2Ω - 4Δ + 6φ) - 15Ω - 3(Ω + 1 - Δ) + 5(7μ + 5β - 13) = 0

10(2Ω - 600 + 5φ + 6β) + 3(β - μ) + φ + μ - 4(6Δ - 8μ + 5Ω ) = 0

personalcompute··on Darpa Unveils Perfected Nano Hummingbird | Walyou
Nano compared to any other UAV.
personalcompute··on China paper warns Google may pay price for hacking claims
I'm sure it does in China. There are other foreign mega-corps like this that you probably don't hear much about in the US, specially, Tencent comes to mind.
personalcompute··on Show HN: Google Charts done in Canvas, side project
Flare is flash only, not Javascript.
personalcompute··on Show HN: Google Charts done in Canvas, side project
You can definitely use log scales with google charts, just it won't do it for you. You'll have to perform the math beforehand and send custom number labels.
personalcompute··on Introducing MotionCAPTCHA: Stop Spam, Draw Shapes
As for being client side, it's just a proof of concept at the moment.
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