Editing AND!XOR DC28 (section)

==Blinking Lights==
<div class="toccolours mw-collapsible mw-collapsed">Challenge 11 (B)<div class="mw-collapsible-content">
<pre>
D chaLenG iz locked! Xchang frend flag 4 unlock!
bit.ly/3eRTR4B
</pre> 
Adding one friend appears to unlock this one
<pre>
and!xor:~$ look
u c Mt BER cn, sobr thotz :( mAbE U cn cure d rona by putn smTIN inside yo slf.
U scratch BUTT whIl tinkiN bout it.

and!xor:~$ hack BUTT wit UVLIGHT
O damn, we hav a l337 haxor Ovr hEr. d louder U R d less U hEr.
tAk a L%k @ yor pwned target.

and!xor:~$ look at BUTT
Yor gutz lite ^ & blink. Itz supa serial 2 stRt tink bout lEst & mst
sigNfict tNgs thN stop, cuz DIS mA b d wrng cure.
</pre>
After Hacking, the LEDS flash in the following pattern (with a small rest for each newline)
* P - Pink
* G - Green
<pre>
PGPPPGGPPG 
PPGGGPPGPG 
PPPPGPPGPG 
PPPPPPPGPG 
PPPGGPPGPG 
PGGPPGGPPG 
PPPGGPPGPG 
PGPPGGPGPG 
PPPGGPPGPG 
PGPPGGPGPG 
PGPGPGGPPG 
PPPPPGGPPG 
PGGGPGGPPG 
</pre>
This one was pretty crazy, but really drove home the "Hey, there's hints in the challenge stupid". Serial... So, converting to binary: 
<pre>
0100011001
0011100101
0000100101
0000000101
0001100101
0110011001
0001100101
0100110101
0101011001
0000011001
0111011001
</pre>
Thanks to [https://www.fpga4fun.com/SerialInterface1.html this] resource on how Serial interfaces, we can recognize that the 10 bit grouping is padded with start and stop bits. Serial also communicates LSB first so I manually reversed each line for:
<pre>
00110001
01001110
01001000
01000000
01001100
00110011
01001100
01011001
00110101
00110000
00110111
</pre>
This decodes nicely into ASCII for: 1NH@L3LY507
<pre>
and!xor:~$ hack flag wit 1NH@L3LY507
Ans Submitted.
L%k 2 C flag.

and!xor:~$ look
ChaLenG Complete!
aegis glows weeds brave funds swear rival tonic tours
</pre>
* Correct flag, +100pt
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<div class="toccolours mw-collapsible mw-collapsed">Challenge 20 (K)<div class="mw-collapsible-content">
<pre>
and!xor:~$ look
D chaLenG iz locked! Xchang frend flag 4 unlock!
bit.ly/3eRTR4B
</pre> 
After some friends
<pre>
and!xor:~$ look
A lRg comms tower itz n not powered, a PIGEON_HOLE gap exists whch needs somTIN
4 cndctvity. l%kin awA U notic som CLOUDS. c%d DIS b d coz of it aL. d rona?

and!xor:~$ look at CLOUDS
R thOs clouds? problE not, thOs R chem trails.
Dey put a hex on U morse so thN U tink.

and!xor:~$ hack PIGEON_HOLE wit BIRB

and!xor:~$ look at PIGEON_HOLE
woah, d bIrb ComplEtd d cIrcuit! a vanilla iCe trak starts playin &
lyts r flashin waaa t% fst. nEd 2 lit'rally netflIx & Chill 2 slo
thngz dwn b4 i git a hedakE
</pre>
The lights on the badge start flashing super quick after hacking, I took a video and replayed it much slower so I could catch it. The clue from the CLOUDS was morse which correlated with the lights flashing Green for Short and Pink for Long with some pauses between. This gave me:
<pre>
...-- ..... ....- --... ..... ....- ...-- ----- ..... --... ...-- ...-- ..... ..--- ..... .- ....- ....- --... ..... ....- ---..
</pre>
* Translated to: 354754305733525A447548
* From Hex gave: 5GT0W3RZDuH
<pre>
and!xor:~$ hack flag wit 5GT0W3RZDuH
Ans Submitted.
L%k 2 C flag.

and!xor:~$ look
ChaLenG Complete!
hubby match nodal shirt nixed shrug thaws loped booth
</pre>
* Correct Flag +100pt
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