Author Topic: Finding encryption algorithm  (Read 1754 times)

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Offline norcis

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Finding encryption algorithm
« on: October 19, 2015, 06:23:01 pm »

Hi. There are two JSON messages bellow encrypted with unknown algorithm. Big chances it's common one. Who first could tell what encryption is it and what it hides?

d67d27edb53e77379831cef9aa13b6e0ff8d63be9a4c40098751f94bf2d248c20fc67e591cc897e291fabb68d23b7b2e70d556db5ad5f2f890e762c016b600994db7d9fbcc904b0fe15feb3c9389938b7ef1ea9d800ca6990f73ca04b63a566daa992b46c64b09b411809ca702ddb50b1db3a8e8f3c93bd22a7908cc637a84dffad7491a9f163f5de15d273285f1650101f7d610b29a73fa867989ba5e8106160104181e8a47d65394191b8a76dad1baf425c1529d0ab525cf60a757d40f23242763439df4d890156e3b4c7277744578


082ec8620300f66d0c34f22b44584715f3a0b8b1e94ff84659d0c0c93f4014fa8b1c6fd7fc8473ce147847ec1f5bfa77
« Last Edit: October 19, 2015, 06:23:34 pm by norcis »

Offline kenjoe41

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Re: Finding encryption algorithm
« Reply #1 on: October 19, 2015, 06:38:43 pm »
I don't get it. Is this a challenge, cos you don't have permission to post them, or is it a HELP ME kinda thing.
If it is the later, you will have a better and fun time trying to find it for yourself as a learning opportunity.

*cough* i smell a SHA-394 variant and few probable chances of a skeinvaraint. *cough*


ummmh..
If you can't explain it to a 6 year old, you don't understand it yourself.
http://upload.alpha.evilzone.org/index.php?page=img&img=GwkGGneGR7Pl222zVGmNTjerkhkYNGtBuiYXkpyNv4ScOAWQu0-Y8[<NgGw/hsq]>EvbQrOrousk[/img]

Offline norcis

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Re: Finding encryption algorithm
« Reply #2 on: October 19, 2015, 06:44:50 pm »
I tried things what I knew and couldn't do it so I asked for help. I will look at SHA-394. Thanks for replay.
« Last Edit: October 19, 2015, 06:45:06 pm by norcis »

Offline ram1r3z0

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Re: Finding encryption algorithm
« Reply #3 on: November 01, 2015, 02:50:50 pm »
Reply: Finding encrypption algorithm from only two ciphertext is not possible.

You can "guess" by see the length but it can send you wrong way.


I would take rather another approach ... to  look from where it is and try to determine which algorith the system uses,

Offline Psycho_Coder

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Re: Finding encryption algorithm
« Reply #4 on: November 01, 2015, 05:34:48 pm »
If it is a hash you can use this : https://github.com/AnimeshShaw/Hash-Algorithm-Identifier to get a list of possible hashing schemes
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