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Scott Pack

00:05

@RoryAlsop Check out this guy. He may need his accounts merged

Bassec

74 1

Bassec

web-application

Rory Alsop

Anyone else think this should be migrated:

Q: Number of AES-256 operations per second on a maximized Cray XE6

How many FLOPs does one AES-256 operation take in ECB mode? How many AES-256 operations in ECB mode can a maximized Cray XE6 perform per second? Cray states that it can be scaled to over 1 million processor cores, but the brochure doesn't state how many, exactly. With 1 million processor cores, ...

cryptography brute-force

@ScottPack will do

Scott Pack

00:21

Cheers mate

@RoryAlsop To where?

Rory Alsop

was thinking serverfault

Scott Pack

Let me give it another gander.

Rory Alsop

it seems to just be a 'how fast is this box' question

Scott Pack

Yeah, he just happens to pick a rather poor problem set.

Tell me how many floating point operations it takes to perform a non-floating point calculation :)

I'm primarily waffling because it smells like it might be a crap question to begin with.

It also has a few answers on it alerady.

Rory Alsop

lol

Scott Pack

00:28

In other news. I'm putting together a pipe and drums cd for my daughter's classroom.

He's hoping the kids take to it. Not enough Americans like bagpipes.

Rory Alsop

@ScottPack Excellent - have you heard anything by the Red Hot Chili Pipers? They rock!

Scott Pack

I haven't!

Rory Alsop

►

Scott Pack

This one is a bit of a traditional mixup. Although I'm tempted to slip some Albannach in there.

Rory Alsop

that should be a nice crossover to help non-pipers see it

Scott Pack

00:37

That is one sweaty piper.

Rory Alsop

think that could be a new insult - 'you sweaty piper'

Scott Pack

01:35

Right, so retraction. When I said, 'Albannach' before, I really meant 'Clann an Drumma'. I don't much care for them since the name change.

Also, RHCP's rendition of We Will Rock You was significantly less significantly less different sounding than Smoke on the Water.

4 hours later…

Stack Exchange

05:12

Stack Overflow Blog: Review early, review often

Posted by Sam Saffron on November 20th, 2011

Stack Exchange gets a staggering amount of questions and answers every day.

Our goal is not only to provide great answers to the huge amount of questions, but to create awesome fossils of knowledge that can be consumed by generations to come.

New users on our sites need some extra TLC. Without them we can not grow our communities. However, often they are not aware of the rich formatting capabilities and various rules we enforce. Occasionally, they post “answers” that are not really “answers”. Sometimes they simply do not belong in the community they are trying to participate. Sometimes we are lucky, they are awesome and need to be enticed with a few upvotes. …

4 hours later…

Rory Alsop

08:55

@ScottPack "significantly less significantly less" - excellent :-)

anyone else think these can be merged as dupes?:

Q: what is the use of stolen personal details?

What can hackers do with personal information that includes this: First name, last name, snail mail address, mobile phone number and email address?

research

Q: What is the use of stolen credit card details?

What can a person with stolen credit card details do? Buy porn? Buy tons of server resources to perform an attack? What else? I'm sure that if he buys books, shoes and bicycles or transfer funds to his account they'll eventually find and arrest him.

fraud

Iszi

09:06

At once, I don't quite see them different enough to be worth leaving separate, yet also not quite similar enough to merge...

Rory Alsop

09:40

@Iszi :-)

3 hours later…

Thomas Pornin

12:53

@Gilles Yes, we also do that at work

It is somewhat easier to manage than SSH-based if you want read-only access for some users, or traceability.

2 hours later…

Rory Alsop

15:05

@ThomasPornin - do you want:

Q: Trying to find a different DES encryption system explanation

I need a mathematical explanation of what does the DES encryption system really do. This means I need more explanation than the one that offers FIPS, which is more an explanation for computer specialits. Among other things, I want to know where does the PERMUTATION TABLES come from: http://i.im...

encryption

I know you answered it, but it is a bit offtopic for here

Thomas Pornin

@RoryAlsop Well, migrate it if you wish

honestly, it is rather bad as a question

I answered it only for the rep

I agree it is more on topic on crypto.SE than security.SE

Rory Alsop

hahahaha - like you need rep

you could have answered it as alter ego for rep

it is on it's way over

Iszi

In case anyone's wondering why their office is so cold on the *inside* during the winter, despite a functional heating system, this may help explain:

"According to the American Society of Heating, Refrigerating and Air-Conditioning Engineers Inc. (ASHRAE) the acceptable range of thermal comfort of admin spaces for winter is 68 to 72 degrees..."

Dunno 'bout y'allz, but I hardly consider 68 to be within an "acceptable range of thermal comfort".

Rory Alsop

That's 20 to 22 degrees in old money. That's way too hot for me in a work environment

I can cope with those sorts of temperatures if I'm in shorts and a t-shirt, but not in a suit

Iszi

The summer recommendation is "...74 to 78 degrees Fahrenheit...". That I can live with.

Rory Alsop

15:11

I'd be dead :-)

In summer I just turn off all heating at home and keep the windows open. In winter I set the thermostat to 18 degrees maximum (colder if I'm in on my own)

Thomas Pornin

@RoryAlsop I don't trust him yet with crypto questions. His training is not complete.

Rory Alsop

@ThomasPornin excellent. He is but a paduan:-)

He is coming along well

Iszi

@RoryAlsop That's padawan.

Rory Alsop

15:28

@Iszi dangit!

I'm still learning

:-)

Scott Pack

I have my winter temp set at 70, and summer at 74. Though, to be honest, I would set the summer range higher if my upstairs would cool better.

The problem with cape cod design is that I have this very large expanse of south facing roofline, into which the bedrooms are tucked.

Thomas Pornin

I do not use artificial cooling on summers. I use heating on winters, because, let's face it, freezing temperature in the living room is inconvenient for the non-alcoholic beverages I may have to serve to some guests.

Also, my cat would not like the chill.

Scott Pack

@ThomasPornin I've considered installing an attic fan so I could decrease my dependency on artificial cooling, but it would be difficult to completely get rid of it.

I have a lot of trouble getting a good draft for convection, and the humidity gets high enough to make the house uncomfortable, especially at bed time.

Stack Exchange

Rory Alsop

15:51

@StackExchange interesting

Rory Alsop

16:48

@ThomasPornin - "you should sue your parents for cruelty" - heh

2 hours later…

Iszi

18:21

@StackExchange Wow. That's a little late today.

And... wow. I think I see why.

1 hour later…

Iszi

19:35

FAIL

Hacker Says Texas Town Used Three Character Password To Secure Internet Facing SCADA System http://t.co/5ERhiCOB via @threatpost

Tweeted by markrussinovich on November 21, 2011 at 7:11 PM

Iszi

19:51

If you guys have input for either of these, it would be greatly appreciated.

Q: Strange output when listing installed software with psinfo

I'm trying to learn more about the Sysinternals PsTools utilities. Today, I ran psinfo -s on my Windows XP SP3 system, and the following entries were at the end of the list: Is this a known bug in psinfo or something else?

pstools

Q: VMWare guests unable to communicate beyond the VMWare lab

I've got a few VMWare machines I'm trying to get networked, but it seems that none of them are able to communicate beyond the VMWare lab environment. The machines seem able to communicate with one another well enough. The problem comes when I want them to talk with anything that's not a VMWare ...

networking vmware-player

2 hours later…

Paŭlo Ebermann

21:22

Q: Is this a safe way to implement a license key?

Programmer here, Is this a safe way to implement a license key: 1) After the user downloads the program, he connects to a website and sends his Windows product ID. 2) The website, then, sends this back to him with a signature using a private RSA key. 3) The program, then, checks, using a public...

public-key

Do you think this would be fine for security.SE? It seems a bit too non-theoretic for crypto.

this.josh

21:39

@Iszi But not suprising.

@PaŭloEbermann Sounds good to me.

@Iszi I think all that info comes from the Registry, so either the registry has corruption or maybe there is some software that uses a language with a non-latin character set.

Paŭlo Ebermann

@thisjosh The user seems to prefer it on crypto, I'll see if we can reword it ... if not, I'll migrate.

this.josh

@PaŭloEbermann He is not really stating his goal which I assume is 'The software will only function if the user has paid for a license.' This is a remote attestation problem with authentication of OOB information.

And he is not stating that the acceptable false positive and false negative rates are.

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