Collaborate Disseminate
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Rounds of MD5 and SHA512 Hashing Algorithms
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I have recently started study… Continue reading What does ‘Rounds’ mean in Hashing Algorithm [duplicate]
I want to know that if a company wants to implement a model of blockchain, let’s say for internal transactions across its offices in different countries, what are the main and important security considerations?
I know that… Continue reading What security considerations apply to a blockchain implementation for private use?
Hackaday reader [nats.fr] wrote in with some code from a project that resizes a video stream on the fly using an FPGA. Doing this right means undoing whatever gamma correction has been applied to the original stream, resizing, and then re-applying the gamma. Making life simpler, [nats.fr] settled on a gamma of two, which means taking a bunch of square roots, which isn’t fast on an FPGA.
[nats]’s algorithm is pretty neat: it uses a first-stage lookup to figure out in which broad range the value lies, and then one step of Hero’s algorithm to refine from there. (We think …read more
Continue reading Ask Hackaday: Computing Square Roots on FPGA?
Hackaday reader [nats.fr] wrote in with some code from a project that resizes a video stream on the fly using an FPGA. Doing this right means undoing whatever gamma correction has been applied to the original stream, resizing, and then re-applying the gamma. Making life simpler, [nats.fr] settled on a gamma of two, which means taking a bunch of square roots, which isn’t fast on an FPGA.
[nats]’s algorithm is pretty neat: it uses a first-stage lookup to figure out in which broad range the value lies, and then one step of Hero’s algorithm to refine from there. (We think …read more
Continue reading Ask Hackaday: Computing Square Roots on FPGA?
Domain Generating Algorithms are in use by cyber criminals to prevent their servers from being blacklisted or taken down. The algorithm produces random looking domain names. The idea is that two machines using the same algorithm will contact the same d… Continue reading Explained: Domain Generating Algorithm
Ever wish you could guess more precisely? Or maybe just make your guesses look confusingly legitimate? Guesstimate could help.
It uses Monte Carlo simulations to add some legitimacy to the ranges given to it. For example, if you say the cost of lumber for your next project could be between 2 and 8 dollars a piece, you don’t typically mean that it’s equally likely to be any of those numbers. Most people mean that the boards are most likely to be around 3-5 dollars and everything lower or higher is less probable. Using different shaped distributions, Guesstimate can help include …read more
Can “fairness” be expressed in numbers? Continue reading To Make AI Less Biased, Give It a Worldview
A researcher says the future of OS X malware detection may be rooted in patterns and heatmap visualization. Continue reading Generic OS X Malware Detection Method Explained
The catch: You have to be a really good DJ. Continue reading How to Send a Secret Message With Techno at a Rave
Artist [Petros Vrellis] has done something that we’ve never seen before: his piece “A New Way to Knit” lives up to its name. What he’s done is to take the traditional circular loom, some black thread, and toss some computing at it. And then he loops the string around and around and around.
The end result of following the computer’s instructions is a greyscale portrait. Where few black strings overlap, it’s light, and where more overlap, it’s darker. That’s the whole gimmick, but the effect is awesome. As you zoom in and out, it goes from a recognizable face to …read more
