[QUOTE=UnknownzD;25099116]so would you mind to tell me that what is the difference for the following codes?
[code]
xor $0x17,%eax;
and $0xFF,%eax;
[/code]
[code]
and $0xFF,%eax;
xor $0x17,%eax;
[/code]
btw if you don't know how xor works as using logic gate .... I can give you some reference for that[/QUOTE]
you keep bringing up and 0xff, whereas have allready shown it is not doing that, determined to hang onto something?
[editline]01:42AM[/editline]
However, I admit once testing, I did screw up with the order, however that does not make the initial point of, it throwing information away screwing things up any less valid,
[QUOTE=nekosune;25099293]you keep bringing up and 0xff, whereas have allready shown it is not doing that, determined to hang onto something?[/QUOTE]
oh so what would be the difference between
[code]
xor $0x17,%eax;
mov %al,%ecx;
[/code]
and
[code]
xor $0x17,%eax;
mov %eax,%ecx;
and $0xFF,%ecx;
[/code]
for the output in %ecx?
anyway I guess you are dumb @ making a compiler / knowing what it is doing (especially for the code optimization part) ...... sometimes compiler will change AND 0xFF into that (mov %al,%ecx) after optimized ........ (therefore you have made another joke that makes me lol'd hard again today)
anyway I am off to sleep now since the competition will started on Wednesday again but I am pretty sure its epic fun today (after reading so much things lol)
Perhaps I have made a mistake with there, but we are arguing on the details of this, and getting further away from the base point of, well I have brought up evidence of it throwing away what is needed to decrypt, you have yet to bring up anything other, until then I wish you good luck.
[editline]01:54AM[/editline]
Heh have a good sleep, and look forward to seeing this decryption in the morning, that or more likely your decision to wait 'even though I COULD have done it' till Wednesday.
[editline]02:17AM[/editline]
I apologie however for my attitude there , been a bad day, if I am wrong, I would love to see how it can be done, I was just point out that from what i do know, all that is left is brute forcing, with a fair range to do
[QUOTE=UnknownzD;25099116][code]
xor $0x17,%eax;
and $0xFF,%eax;
[/code][/QUOTE]
ewww AT&T syntax
[editline]01:41PM[/editline]
[QUOTE=nekosune;25097879]al contains the lower half of eax note it does this once to save[/QUOTE]
Actually, AL is the lower byte of AX which is the lower word of EAX. So AL is the lower quarter of EAX.
my apologies there, stupid mixups
[QUOTE=turb_;25102674]ewww AT&T syntax
[/QUOTE]
Maybe he's a GNU person.
[QUOTE=esalaka;25104927]Maybe he's a GNU person.[/QUOTE]
Nothing excuses AT&T syntax. Nothing.
Check out this:
[code]
mov ax, [ds:bx+3]
[/code]
Versus this:
[code]
movw %ds:3(%bx), %ax
[/code]
[QUOTE=turb_;25105066]Nothing excuses AT&T syntax. Nothing.
Check out this:
[code]
mov ax, [ds:bx+3]
[/code]
Versus this:
[code]
movw %ds:3(%bx), %ax
[/code][/QUOTE]
Well, I agree, Intel syntax [B]does[/B] make more sense.
Good news, I've written an entire new algorithm. To be sure that it is reverseable, I wrote my own decrypter. Problem solved :downs:
[QUOTE=Shammah;25109996]Good news, I've written an entire new algorithm. To be sure that it is reverseable, I wrote my own decrypter. Problem solved :downs:[/QUOTE]
I read that in Farnsworth voice, also prehapse change the message, to stop people claiming then won both after the fact.
Alright, contest restarted, good luck everyone!
Puzzles within puzzles?
[editline]08:07PM[/editline]
Great, got through the encryption, and there is another step?
My family always has a trick or two behind their sleeves
I appear to be on the last trick, and is horrible XD
[editline]09:54PM[/editline]
ARGH this last step has me completely stumped!
Well I do not think I will be getting it, so I look forward to someoen doing so, so I may show what monstrosity of a program got me to the last step
[img]http://ahb.me/ycn[/img]
allready got a decryption, had such an hour after it went up, what I am stuck with is the last riddle
Hmm, I expected it to be almost solved by quite some people already! Come on, it ain't that hard! :v:
The end certinatly is that hard I have been working on it all day with no luck
Damn, can't figure it out either, I'm cursing the day LaTeX was invented.
the equation one, was relatively simple, the next is the stumper.
OK, still cursing the day LaTeX was invented.
I must say, the encryption is very hollywood movie friendly :wink:
Yeah *smiles* this is the kind of one can impress friends with without them asking why is so boring
I'd love to see a writeup of the solution once one of you guys beats it.
Alright alright, the last riddle is about music. Music related to the bible, but at the same time not.
[editline]07:28PM[/editline]
I thought that adding a riddle or two would spice of the competition, but if there's going to be a next one I think I'll cut down on them.
[QUOTE=Shammah;25199992]Alright alright, the last riddle is about music. Music related to the bible
[/QUOTE]
Well that explains it.
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