[KEYGEN] The Twisted Road to Despair

keygen
challenge
reverseengineering

(pico) #1

Well, the title says it all.

#Hints
No hints… Hints are for wimps… there are no hints in real life…

Rules

Post at least 3 valid username/keys combination in the comments. Do not forget to use the spoiler tag

Write-ups are welcomed…

Challenge

Get your binary the usual way:

cat text_below | base64 -d | gunzip > TRtD && chmod +x TRtD

And start reversing it!

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Challenge Collection: Reverse Engineering and CrackMe
Creating a keygen for the Twisted Road to Despair
#2

was fun! :open_mouth:

ilovecatz<3 : 676a6d7463676d787e3a31
thecakeisalie : 746669635f6f696d7f61686d63
thiswasfun : 746665737b6171647362

471e61656a23702c6861766120612460636b692c5f7224786865247363757263632a24635f62244d?


(pico) #3

Congrat @Leeky!! :trophy:

Well Done

I’ll PM you with your request;)


(pico) #4

Hey, everybody!

@Leeky has already got a Tier-0 Challenge Solver badge.

What are you waiting for to get yours? :wink:

Solve this challenge, earn your own and get one step closer for a Tier-1 Challenge Solver badge!

Note: You have to provide unique username/keys pairs to get your badge. Hurry up while the challenge is still open!


#5

I would have looked at this challenge no matter what, this extra motivation is nice tho. I will keep that in mind and freshly sort my priorities every time I see some new challenges.

new challenges > latest still unsolved challenges > already solved challenges


I want to be the very best
Like no one ever was
To catch dem badges is my real test
To train myself is my cause

I will travel across the land
Searching far and wide
Teach me to understand
The power that slumbers deep inside


B2T: I will still try to solve it. Give me some more time :smiley:


(pico) #6

No problem. We can leave this running for a while


#7

Hey, I’m a bit late to the party but I finally got some working serials here! :grin: The next thing I’m working on is getting a serial for any arbitrary string automatically using a keygen. Perhaps I’ll even do a little writup of the process if people are interested in how I got the serials. Anyways, thanks a lot @0x00pf, it wasf fun and learned a lot.

thanksforthechallenge:74666d6c6777666f76726c616f666d606c656e6763
itwasprettyfun:677275657f6e7261747275647362
stillworkingonakeygen:7f7265606c736d7067696e6763626d6b637965616a


(pico) #8

Well done @Noswis

Please go ahead with the keygen and writeup it’d love to see how you solved it


#9

Hi, I hope I’m still in time to give an answer to this challenge! I really had a good time solving it :slight_smile:
I have a working KeyGen in python, let me know if you want a writeup about how I got it!

Here are my examples:

my name is p3rla - 6b79246c5f6d692c6777247c3f7e6865
myfirstsolvedchallenge:) - 6b79666d76777073636a766164676c656c6a696c6b653a2d
0x00secRocks! - 3076343c7f656150636769731f


(pico) #10

Well done @p3rla! Glad to hear you liked it!
As I said to @Noswis, please go ahead publishing your keygen and write up.

To all other 0x00sec members… just hurry up, I’ll stop granting Tier-0 Challenger Solver badges when a solution (keygen or write-up) is publicly posted!..

You still can get yours! :slight_smile: and get one step closer to get your Tier-1 Challenger Solver Badge!!! I wonder who is going to be first to get one of those :scream:


#11

Interesting keygen, thank you 0x00pf.
I would like to ask the same question as Leeky asked :stuck_out_tongue:

        But I don't think: 4675702c471e606f6a23702c7466656c67
        the password:    7466692c706171737b6b7268
        is reversible:      67772470637a69707f69626063

(pico) #12