Didactic Feedback Cipher 2
Posted: Wed Oct 15, 2008 10:54 am
Is this challenge really meant to have the same ciphertext as the previous one? The same answer doesn't work. 
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Posted: Wed Oct 15, 2008 1:25 pm
This time I can't solve it either
Posted: Wed Oct 15, 2008 3:48 pm
whoops, fixed!
Posted: Wed Oct 15, 2008 5:10 pm
Thank you! I solved it. But it was very tough again!adum wrote:whoops, fixed!
The notable fact is that the sequence consists of odd number of characters.
Posted: Thu Oct 16, 2008 6:52 am
Yeah, this is kind of a problem for me - why is it ending (or starting ? ) with half byte ?
Or it's Broken one again ?
Or it's Broken one again ?
Posted: Thu Oct 16, 2008 7:16 am
whoops, it's not meant to have an odd number or chars! sorry guys, i messed up again. it's fixed now...
this time it really boggles my mind that it got solved in a broken state. i had forgotten to mod by 256 and numbers were getting bigger than a byte.
sorry again,
adum
this time it really boggles my mind that it got solved in a broken state. i had forgotten to mod by 256 and numbers were getting bigger than a byte.
sorry again,
adum
Posted: Thu Oct 16, 2008 8:02 am
Yes, wow, nice one tails!
Posted: Thu Oct 16, 2008 8:05 am
Sorry I should have pointed out the problem more clearly.
And please count me out next time when you validate your challenges.
And please count me out next time when you validate your challenges.
Posted: Fri Oct 17, 2008 9:34 pm
That was good, tails!
gfoot did a nice job too to bring "Start" challenge to discuss.
Didactic Feedback Cipher Long 2 has a typo in description - one of those "k" should be "x" I presume.
gfoot did a nice job too to bring "Start" challenge to discuss.
Didactic Feedback Cipher Long 2 has a typo in description - one of those "k" should be "x" I presume.
Posted: Thu Aug 06, 2009 6:50 pm
great challenge once again adum.
tails, I take my hat off to you.
sabretooth
tails, I take my hat off to you.
sabretooth
Posted: Mon Mar 07, 2011 7:14 pm
Hi,
I think my algorithm is correct, but I only get gibberish. I tried to filter characters which ASCII values are between 0 and 150, but this leads to no result.
I already solved 'Didactic XOR Cipher 3' which is similar to this one. Does the plaintext looks like: your answer is '…'?
I think my algorithm is correct, but I only get gibberish. I tried to filter characters which ASCII values are between 0 and 150, but this leads to no result.
I already solved 'Didactic XOR Cipher 3' which is similar to this one. Does the plaintext looks like: your answer is '…'?
Posted: Mon Jun 27, 2011 9:57 pm
No, it does not. And Didactic Feedback Cipher is actually more similar to this one. Just try to deduce n+1 from n and you'll get thereinQr wrote: I already solved 'Didactic XOR Cipher 3' which is similar to this one. Does the plaintext looks like: your answer is '…'?
Posted: Thu Jul 28, 2011 1:08 pm
Hi guys, Is there a mistake in this challenge? Why the length of HEX string is 379?
Posted: Thu Jul 28, 2011 2:00 pm
If I counted correctly, the given string has a length of 124 single characters, which results in 124/2 = 62 ASCII characters.
Posted: Fri Jul 29, 2011 3:06 am
I'm sorry, I made a mistake.
That I have said is about the "Didactic Feedback Cipher Long 2"
That I have said is about the "Didactic Feedback Cipher Long 2"