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HellBound Hackers | Computer General | Cryptography

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can YOU do it

richohealey
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Posted on 20-04-07 07:05
I'm trialing some new forms of encrpytion.

they are composite enryptions using existing algoritms... well teh first few will be any.

I'm going to post them here, anyone who cracks them will go in my sig for 2 weeks.

I'll edit this post to add new ones periodically.

the first one is!:

NTQ2ODY5NzMyMDY5NzMyMDYxMjA3MzYxNmQ3MDZjNjUyMDczNzQ3MjY5NmU2NzIwNjQ2NTczNjk2NzZlNjU2NDIwNzQ2ZjIwNzQ2NTczNzQyMDZkNzkyMDY1NmU2MzcyNzk3MDc0Njk2ZjZl

Number 2!:

=,^),^)')')(
\V 7=,9 '& ^
4Z 6?

Number 3!:

$.  '-3   =, 18X R.#%\ 824/1-
;'
7 ;*_220 !< <2. %S!>UX
ENJOY!
i realise that there are non ASCII. also the newlines are important.

edit: just disabled smilies to make it... you know... possible




Edited by rex_mundi on 17-03-14 10:24
bitchohealey at hotmail dot com skype:richohealey www.psych0tik.net
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RE: can YOU do it?


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Posted on 20-04-07 08:34
It is indeed a nice sample string to test your encryption Pfft

Shall I post solutions or PM them?
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RE: can YOU do it?

richohealey
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Posted on 20-04-07 08:40
feel free to post. i'm putting these up so that i know which ones are crackable. use this thread to discuss it if you want.

Good luck!

i'll also go back to edit it and number them


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Posted on 20-04-07 08:46
Initial String:
NTQ2ODY5NzMyMDY5NzMyMDYxMjA3MzYxNmQ3MDZjNjUyMDczNzQ3MjY5NmU2NzIwNjQ2NTczNjk2NzZlNjU2NDIwNzQ2ZjIwNzQ2NTczNzQyMDZkNzkyMDY1NmU2MzcyNzk3MDc0Njk2ZjZl

Base64:
5468697320697320612073616d706c6520737472696e672064657369676e656420746f2074657374206d7920656e6372797074696f6e

Hex Chars
54,68,69,73,20,69,73,20,61,20,73,61,6d,70,6c,65,20,73,74,72,69,6e,67,20,64,65,73,69,67,6e,65,64,20,74,6f,20,74,65,73,74,20,6d,79,20,65,6e,63,72,79,70,74,69,6f,6e

Decoded:
This is a sample string designed to test my encryption


EDIT: Cool... just spotted my name on your sig :ninja:

Edited by on 20-04-07 09:13
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RE: can YOU do it?

richohealey
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Posted on 20-04-07 09:13
yup! nice work :>

also, what method did you use, i mean i know how you decrpyted it, but did you use online tools (yellowpipe, nickciske etc)

or write a program?


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Posted on 20-04-07 09:34
I looked at it and it was pretty obvious it was Base64 (the mix of uppercase, lowercase and numbers with no spaces).... the only thing missing was the '=' at the end of 'most' base64 strings.

I already have a tool that I coded to decode base64..... I made a tool to do base64, morse, binary, hex/dec/ascii decoding etc in MASM ages ago when doing hackits.de/bind-dice/bright-shadows.net.

Decoding the Base64 gave me a load of hex chars so again, it was easy to spot and decode.

If you had done something extra to the hex chars (say simple atbash/caesar/transposition cipher) it would have made it a little trickier but then you need somewhere to take enc 2 Smile

Looking forward to the next ones Smile
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RE: can YOU do it?

korg
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Posted on 20-04-07 09:38
Damn,Wish you wouldn't have posted the answer, Signed out to decrypt it and BAM It's posted already,LOL OH well. Yah, Once you decoded the base the hex was easy to seeShock
Bring on some moreGrin


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RE: can YOU do it?

richohealey
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Posted on 20-04-07 09:41
korg i can get people to take the answers down if you want.

most of them wil be variations on it though, i'm just inputting random shit.

and yes, the first one was VERY easy.... i forgot how to convert decimal to hex efficiently in python so i had to skip a few steps.

ha ha the next one should be a lot trickier


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Posted on 20-04-07 10:18
Sorry korg.... I thought that might happen so thats why I checked if I should post the solution.
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RE: can YOU do it?

korg
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Posted on 20-04-07 10:20
That's alright at least I got it tooGrin


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RE: can YOU do it?

richohealey
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Posted on 20-04-07 10:23
ha yeah sorry korg, since they weren't REAL challenges in the points sense i figured people might want to work backwards from the answer later on.

but yeah, thanks for the positive feedback. for the purpose that this is going towards (secret enyption stuff lol) i'm not going to update with anew one till someone gets the old one.

so get crackin!


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Posted on 20-04-07 11:35
lol FaTaL Pride can you crack my own encryption?
It is in forum 'Uncrackable encryption'


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RE: can YOU do it?

richohealey
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Posted on 20-04-07 19:20
****bump****

has anyone got anywhere with the second one? it's not tooooooo hard.


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Posted on 20-04-07 20:32
richohealey wrote:
f so that i know which ones are crackable.


just to say that you cant get an uncrackable encryption, it actually breaks the laws of physics to be so secure. if you REALLY want an uncrackable encryption check out this

http://tinyurl.co. . .




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RE: can YOU do it?

richohealey
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Posted on 21-04-07 03:02
Necro:

I realise taht nthing is uncrackable.

although i bet you don't know what character this srated out as "h"

the day you tell me with certaintly what it was will be a proud one.


but i wanted to see what everyone could crack, and how long it takes you.


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Posted on 21-04-07 05:22
dang i just read that uncrackable encryption and thats pretty amazing if i do say so my self
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Posted on 21-04-07 05:59
that's pretty cool indeed. i do however beg to differ on the possiblity of uncrackable computer encryption. i think it is indeed possible.


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Posted on 21-04-07 11:14
^ i think i agree. surely nothing can be that secure because there is always a chance, even if its 1 in 10^3748293749 or something, that you could guess how it is encrypted. we should really start a new thread about this.


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Posted on 25-04-07 10:49
Number 2 : "i think this is also a nice string."

Got it :ninja:

I'll refrain from posting a solution for a while to let others have a chance Grin
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Posted on 25-04-07 11:05
good work.

i'm nearly done with the next one. i think this one will stump you!


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