The DMZ

this.josh

09:13

Now I realy believe that space is expanding. Chat density proves it!

Ninefingers

09:29

Good ~~morning~~ whatever time it is in your timezone everyone, what do we think to:

1

Q: What role does cryptography play in anti-piracy?

As a follow-up to Cipher for Product Registration, are there secure yet usable cryptographic standards/protocols for protecting software and data used by software? I'm interested in hardware and software techniques for: Software registration Anti-reverse engineering Piracy prevention Intellectu...

for here?

Rory Alsop

09:55

morning @Ninefingers

probably good for sec - although it's gonna be broad

go and ping it over :-)

did you see I popped one on elliptic curves over to you

seemed to be a question on why RSA over elliptic (which seemed a bit outside our remit here) but feel free to ping it back if the reason is purely an implementation one

Ninefingers

@RoryAlsop Yep, thanks, I edited it. I agree. I'm in two minds about moving it even, as it is very broad.

"Talk to me about anti-piracy measures" is how it reads.

Rory Alsop

@Ninefingers yeah - I can see a couple of questions in it though, so we can have a hack about at it

Ninefingers

@RoryAlsop I'm hoping for "hard" crypto answers on that one. I think the same question could be asked both here and on crypto, really.

@RoryAlsop Ok. I'll leave a comment saying I'm thinking of migrating it and if nobody objects, I'll ping it over.

Ninefingers

11:37

@Rory OP agreed. All yours:

1

Q: What role does cryptography play in anti-piracy?

As a follow-up to Cipher for Product Registration, are there secure yet usable cryptographic standards/protocols for protecting software and data used by software? I'm interested in hardware and software techniques for: Software registration Anti-reverse engineering Piracy prevention Intellectu...

untagged

@mikeazo migrated your question - if you register an account, you'll be able to receive rep/notifications for your question here.

Rory Alsop

12:27

Hey @Ninefingers - I'm also thinking you might like this one. What do you think?

0

Q: Select a TripleDES key so that it effectively behaves as regular DES

I'm working with a smartcard (DESFire) that supports both TripleDES and DES. In the specs it is stated that both modes of operation use 16 bytes keys. When the first 8 bytes in the key are identical to the trailing 8 bytes, the DES mode is used. Otherwise, the TDEA algorithm is selected. This is...

encryption key-generation

Ninefingers

@RoryAlsop I think so - I thought exactly the same thing when I read it and was just about to flag it.

Iszi

13:42

Does the StackElectronics logo remind anyone else of a Companion Cube?

Resistor suggestions for colorblind person http://electronics.stackexchange.com/questions/22268/resistor-suggestions-for-colorblind-person #resistors

Tweeted by StackElectronix on November 15, 2011 at 5:21 AM

Dunno why it makes me think of one.

Jeff Ferland

14:19

@Iszi Yes

Iszi

@JeffFerland Nice to know I'm not totally insane. Thanks.

Or, maybe we both are.

Scott Pack

15:23

It always struck me as something familiar, but I never quite placed it before.

AviD

17:44

DOOOOOOOOOOOOOOM

Scott Pack

18:07

Hairball?

AviD

heh, I see we read the same webcomics

any you fellows happen to use basecamp?

nevermind, ill go look on ~~webapps~~ nothing to install

Iszi

@AviD Care to share?

AviD

18:29

@Iszi girlswithslingshots.com

Iszi

@AviD Any specific strip? 'Cause I'm still not getting it.

AviD

ach, i still dont get why the onebox sometimes squishes my pics....

Iszi

Aha!

On an unrelated note, anyone got tips for this?

in Root Access, 3 mins ago, by Iszi

Could someone help me figure out why Excel might not be processing formulas on a spreadsheet?

AviD

yeah, theres somewhere to shut off automatic calculations.... hang on

Iszi

@AviD It's not on every spreadsheet, just some.

AviD

18:33

in the formulas tab, click on "calculation options"

Iszi

Particularly those that are "formatted as a table".

AviD

so you probably have that set to "Automatic except for Tables" ;)

really

Iszi

Nope, set to Auto.

AviD

harumph.

Iszi

And when I try to force a calculation, it says the cell I'm trying to calculate contains a constant.

AviD

18:35

and what happens if you click "calculate now"?

Iszi

Clicking "Calculate Now" produces nothing. "Evaluate Formula" gives that error.

All the cell has is an equals sign followed by a crap-ton of nested IFs. But even if I just do "=1+1" it still won't work.

AviD

is it formatted as text?

Ive noticed that sometimes plays havok with formulas

Iszi

@AviD Was, but I've changed it to "General".

AviD

ah, but its already been havoked.

enter the cell, and then leave it - the formula will get recalced.

Iszi

Oh hey!

Spiffy.

AviD

18:42

ftr, if you have the formula in first, then set it to text, the formula still is calced.

Iszi

And, since it was a table, it already populated the formula all the way down.

AviD

i'm not sure its not a bug, but its definitely a bit unexpected behavior

I definitely know a lot more about excels nooks and crannies than I'd like to.

this.josh

21:24

Some days I hate copy and paste.

Thomas Pornin

21:56

@thisjosh It is a very useful tool, until other people begin to use it, too.

this.josh

22:08

Its always the other people. Except when it's me.

Thomas Pornin

"L'Enfer, c'est les autres." (Sartre)

2

this.josh

Jean Paul?!

What you infer is what is?

Thomas Pornin

@thisjosh Yes, Jean-Paul. No, "Enfer" is not the French word for "to infer".

this.josh

Oh inferno! oops

Thomas Pornin

It means "Hell consists in the other people."

this.josh

22:16

autes is a form of to be?

nope

Thomas Pornin

@thisjosh "autres" means "others". From latin "alter" (as in "alter ego" = "another me")

this.josh

Ah. Please forgive my slaughter of language.

I was leaning too strongly on the exestentialist idea.

Thomas Pornin

@thisjosh No problem. That's just you being an "other", hence hellish. You can't help it.

this.josh

I think I do help it. I am strongly regarded in some circles, and definately in a negative light.

Thomas Pornin

That's an achievement. Is there a badge for it ?

this.josh

22:25

Yes, it's black with ozzing slime. It says 'I told you so'

Thomas Pornin

Neat !

this.josh

Yes, its neat except when they make you clean up the mess. Knowing what will work you become the best candidate to fix it.

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