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Didactic Feedback Cipher Long
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W1zard



Joined: 25 Oct 2008
Posts: 8

Post Didactic Feedback Cipher Long Reply with quote
Hey!
My solution is not excepted although I'm sure it's correct. I got the complete plain text so the answer should be ok, too. Would be nice if someone could check if there is a typo in the hex code.
Sat Nov 01, 2008 7:03 pm View user's profile Send private message
therethinker



Joined: 28 Mar 2008
Posts: 144
Location: #hacker.org on Freenode

Post Reply with quote
The answer isn't hex. Once you find the plaintext, you should be able to go from there Wink
Sun Nov 02, 2008 12:41 am View user's profile Send private message AIM Address
W1zard



Joined: 25 Oct 2008
Posts: 8

Post Reply with quote
I know that the answer is not hex. As usual the answer something in English. I meant the hex which is given in the challenge. I checked the plain text twice now and everything fits quite nicely.
Sun Nov 02, 2008 6:43 am View user's profile Send private message
therethinker



Joined: 28 Mar 2008
Posts: 144
Location: #hacker.org on Freenode

Post Reply with quote
The entire plaintext isn't the answer either.
Sun Nov 02, 2008 6:02 pm View user's profile Send private message AIM Address
gfoot



Joined: 05 Sep 2007
Posts: 269
Location: Brighton, UK

Post Reply with quote
I just checked, and the ciphertext on the page right now decrypts fine, and the answer it gives is accepted by the site.

Unlike some of these, I can't see any way you could get something which looks correct but is actually wrong. Hmm. If you want, you can PM me your answer - but I'm not sure whether I'll be able to say what you're doing wrong though.
Sun Nov 02, 2008 6:23 pm View user's profile Send private message
W1zard



Joined: 25 Oct 2008
Posts: 8

Post Reply with quote
I know that, too! As in most of the other challenges the answer is not the complete text but just a part. In this case I got something like "xxxxxxxxx". So the answer should be xxxxxxxxx.
Sun Nov 02, 2008 6:26 pm View user's profile Send private message
SirMouse



Joined: 15 Sep 2007
Posts: 1

Post Confused by "->" Reply with quote
I'm just not getting something in the code, the use of the Member by Pointer operator " -> " is confusing the hell out of me. Is it supposed to represent something else in the context of this code?
Sun Jan 04, 2009 7:20 am View user's profile Send private message
m!nus



Joined: 28 Jul 2007
Posts: 202
Location: Germany

Post Reply with quote
the 4 bytes from txt[x] to txt[x+3] get XORed
Sun Jan 04, 2009 10:49 am View user's profile Send private message
vielinko



Joined: 09 Jan 2009
Posts: 5

Post Reply with quote
m!nus wrote:
the 4 bytes from txt[x] to txt[x+3] get XORed


Hello There,

Can you tell me how you know that

(txt[i] -> txt[i + 3])

is the 4 bytes from txt[x] to txt[x+3] get XORed?

There is some standard about it?

I just have doubt about it Razz ...
________
Jaguar XJ13 history


Last edited by vielinko on Mon Jan 31, 2011 9:18 pm; edited 1 time in total
Wed Feb 04, 2009 11:27 pm View user's profile Send private message
MerickOWA



Joined: 07 Apr 2008
Posts: 182
Location: HkRkoz al KuwaiT 2019 HaCkEr 101

Post Reply with quote
Yes " -> " means from txt[x] to txt[x+3] (4 bytes).

I know this because i've solved the problem and can verify thats what it means Wink
Thu Feb 05, 2009 3:26 am View user's profile Send private message
vielinko



Joined: 09 Jan 2009
Posts: 5

Post Reply with quote
ok, i just had the doubt Razz ... usually the "->" denote a pointer member from an object Smile ...


But thank you for your replay Smile
________
Ferrari 412T
Thu Feb 05, 2009 4:36 am View user's profile Send private message
aurquiel



Joined: 26 Jul 2017
Posts: 5

Post Reply with quote
I have a i5 processor and just guessing the four bytes key with a c program of 50 lines is taking a couple of minutes
By brute force it takes around 3 min of program running.
Fri Aug 18, 2017 6:53 pm View user's profile Send private message
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