cant speak to the parsnip - seems to be the type of thing your mother always tries to get you to eat when you're a kid, but you refuse to - but the rest sounds great.
I am trying to setup a canon MF4412 printer on my Arch Linux desktop.
I followed the official guide in setting up a CUPS server/client as well as installing the cndrvcups-lb driver package.
However, my CUPS server is still unable to detect the printer. My best guess is there is a problem with ...
Oh also @AviD how did your friend get on with his procmon type thing? I'm pretty certain I could take on such a challenge these days :) Feel free to use my email if you can't tell me about it here. I never did finish writing my procmon rebuild, but I did make some extensive modifications to a driver at work to get around UAC :)
ahh, right. they hired a couple of guys, went and got themselves a big investment (just closed due diligence last week), and they are all going to become disgustingly riche.
@Ninefingers actually, that's not strictly true. just ask the guys (and gals) over at OnStartups.
In fact, I do have the awesomer idea, just not able to do the biznessy part of getting it off the ground.
not yet, anyway. its a work in progress.... I hope.
@Ninefingers thought I'd heard of it, but I thought it was a takeoff on google chromium. I think I was wrong, but I'm having a hard time figuring out what exactly that is...
my best guess right now, is it IS a layer on top of chromium, with very strict process permission controls, and management for it. E.g. Chrome on Windows 7 with UAC (Integrity Levels) with a bit of user experience thrown in.
but I could be wrong.
@TerryChia no, they're very careful not to use that exact term, so they cant be pinned down to something specific.
@AviD I'm not sure what to make of it. On the one hand, the website is totally free of specifics as we've observed. On the other, the guys behind it wrote Xen.
Why is keccak more different from SHA-2 than other SHA-3 candidates? Does this claim refer to the sponge construction, or properties of the compression function?
@ninefingers I'm not 100% sure on how that login works on the blog any more. It does use the openid authentication, but not sure what happens at the back end. Is it breaking your login completely?
@CodesInChaos Keccak does not use additions over 32-bit or 64-bit words. In the MD5 / SHA-* designs, the additions are a major source of non-linear propagation of bit differences
"Non-linear" if you analyze things in GF(2)^x, of course.
The mix of bit-level operations and word-level operations is what the SHA-* feed on; and Keccak does not do that.
That's how I see it, at least.
Most of the work on MD/SHA collisions is about following differential paths, dancing around the carry propagation in additions. By nature, such things do not apply to Keccak.
I predict that in the mid-term future, Skein will be more widely used than Keccak, because there will be some half-informed maverick who will imagine that fitting it in some p2p protocol or OpenBSD login will be a nice political gesture ("we sneer at your government-approved function !").
The software performance is overrated, also. Skein sucks on architectures where there are actual performance issues.
I mean, just yesterday, someone was emailing me because he had to hash 8 petabytes of data and he wanted to "speed up SHA-1". But it turned out that his bottleneck was I/O, not SHA-1
But I find myself being very dubious at any claims made by a marketing-driven startup. Did you ever notice how everybody at those shops were sooo integral to world development?
this one was solely responsible for Oracles database engine, that one implemented the first real time messaging, this one invented a div within a span....
I should be nicer, being kinda/sorta a startup guy myself, but the marketing-driven startups (and they are easy to spot, usually) just rub me the wrong way.
@Ninefingers That would be one way to do it, but I think it would be quite expensive. In the VMWare case, the two hypervisors talk to each other and are aware of each other.
@Ninefingers Well yeah, I was talking about hypervisors which use AMD-V / Intel VT, and run 64-bit x86 code at native speed.
Can VMWare ESX or ESXi be installed and used inside a virtual machine?
It can be installed inside VMWare Workstation or Server, but then it doesn't work; the main symptoms are:
It runs REALLY slowly.
It lets you create VMs, but when powering up them it gives an error stating "You may not power...
That's great, because vmware is just one hypervisor and they can all co-operate nicely, but what if you have security-based hypervisor product called Squares (for example) and I want to run it on my Tao hypervisor and the two don't talk?
That's a reasonable set of requirements, and it should be supported more widely. It requires hypervisors which nest. As VMWare shows, it is possible to do it efficiently.
@TerryChia I've given up trying to work around some things that just don't work under Linux - these days I read before buying hardware and/or go without.
@TerryChia I pretty much buy nvidia graphics cards solely for that reason. I brought an ATI one back when they were ATI and had a lot of pain getting it to work with Ubuntu, so gave up.
It looks like this question is quite close to being closed for being "black hat" -ish, though nobody seems to have cared enough to comment as to why it's actually "off topic". Any suggestions?
I am connecting to a free public wifi, I want to connect or use other ports like FTP and SSH. What are the possibility to override it?
In order to connect to the internet, They are requiring me to add their proxy on my HTTP and HTTPS settings, under network (Mac OSX).
I've asked them why I can't...
@TerryChia Some people might have objections to the fact that it seems the OP is trying to use a system in a manner which they are not authorized. While this is indeed frowned upon, the community (in Meta) has agreed that "black hat" alone is not a good close reason.
@TerryChia I do like using OSX as a desktop OS, but keep in mind that you're using their environment. If you're accustomed to the "do anything you want if you're willing to put in the effort" mindset you will be in for quite the culture shock.
@TerryChia As a pretty standard desktop, it works pretty dang nice. But yeah, if you take more than a step or two off the Jobsian Path you'll pretty quickly find the cliff face of the Abyss.
@jrg I used to feel more strongly about that. The biggest advantage for me to run a compatible desktop OS at work is that I can manage it the same way without much modification, that is managing a Fedora desktop using a puppet tree designed for RHEL requires very few changes.
@jrg These days...do I have ssh available using a reasonable interface? Doesn't so much matter then.
I'm curious to know how Duqu deletes itself. From technical point of view and generally, how can an executable delete itself while is running? Does Duqu use a specific procedure to do this?
I have http // domain_name (dot0 com
Now, I want https://domain_name.com. I can buy from namecheap or RapidSSL.
I also have created Facebook Apps on this domain. Facebook only supports https. My apps is hosted on the same server where domain_name (dot) com is hosted.
Do I have to buy separate ...
on-topic because it's about authenticating a web app? Or off-topic because it's about getting the right SSL certificate on a specific website, which would be better on Webapps (?)?
@Gilles That one appears to be already gone (to U&L)
@Gilles I don't like to instill the bitter feeling of rejection on hopeful users who took the effort of suggesting an edit, only to get denied at the last instant by what they feel to be the disdain of a pompous stranger. It is much more exquisite to make fun of them in public, with snarky comments and exuberant pedantry.
@ThomasPornin I was reading back the SHA-3 discussion, and @ThomasPornin mentioned that the NIST was originally looking for a SHA-2 replacement but shifted their goal to a complement for SHA-2. I was wondering why this is, because I'm sure everybody will assume SHA-3 to be an improved version. I can already see the forums full of "Why would you still use SHA-2 when there is SHA-3!"... (PS. This is my first message on a stackexchange chat, hope I got the syntax right)
NIST officially says this: > The only ordering implied in sha2 vs sha3 is when they were designed; we explicitly are *not* telling people they should move from sha2 to sha3. The two standards will coexist.
(now that's my syntax which does not work...)
Anyway, people will assume many things, as is customary with people.
hm well I hadn't expected it to start with @yourname, thought it would only provide a this-is-a-reply icon, now it reads weird. Oh well, you get the message ^^
@Luc That's the normal way of linking a message to a previous message. You get used to it after a while.
A few days ago, I was reading a message somewhere of someone lamenting that one VMWare product offered "only" AES-128 encryption, whereas another could do AES-256.
Similarly, many people will insistently demand SHA-3, which is "obviously" better than SHA-2.
As for reasons for using SHA-2 instead of SHA-3, well, there is a big glaring one known as performance. Especially on small 32-bit CPU, Keccak is substantially slower than SHA-256 (like, twice slower).
@Luc It is from an email from John M. Kelsey, aka "john.kelsey@nist.gov". The email was sent to the hash-forum mailing-list (the mailing-list NIST maintains as part of the SHA-3 competition). I don't think it is publicly available.
I mean, it cannot be considered secret in any way, but it is not within reach of Google's bots.
@ScottPack The x86 processors with SSE2 registers ought to run Keccak faster than SHA-256 and SHA-512 (but these are already at more than 150 MB/s, so that's a bit moot).
@ScottPack Let's say it take some effort not to be I/O bound, at these speeds. You might get up to 300 MB/s with a good SSD, but mechanical harddisks will be at 100 MB/s or less.
It also takes some effort to find a scenario where such speed is relevant. Normally, when you read data, it is to do something with that data; the "something" could easily be the bottleneck (and usually is).
I am trying to setup a canon MF4412 printer on my Arch Linux desktop.
I followed the official guide in setting up a CUPS server/client as well as installing the cndrvcups-lb driver package.
However, my CUPS server is still unable to detect the printer. My best guess is there is a problem with ...
Can VMWare ESX or ESXi be installed and used inside a virtual machine?
It can be installed inside VMWare Workstation or Server, but then it doesn't work; the main symptoms are:
It runs REALLY slowly.
It lets you create VMs, but when powering up them it gives an error stating "You may not power...
I'm curious to know how Duqu deletes itself. From technical point of view and generally, how can an executable delete itself while is running? Does Duqu use a specific procedure to do this?
I have http // domain_name (dot0 com
Now, I want https://domain_name.com. I can buy from namecheap or RapidSSL.
I also have created Facebook Apps on this domain. Facebook only supports https. My apps is hosted on the same server where domain_name (dot) com is hosted.
Do I have to buy separate ...
