Date: Tue, 31 Oct 2017 10:42:44 -0700 From: John McNamara <johnnym1266@...il.com> To: john-users@...ts.openwall.com Subject: Kruptos encrypted file hash with John? I'm inexperienced with hashes and encryption and have played with JtR over the years to learn more about how they work. I started by generating hashes online with weak strings and observed how JtR was able to crack the hash. I moved up from there and started learning about wordlists and using them to crack hashes that are generated by strings that use common words. It was really neat and informative to play around with. Jump to present day I found an old backup from 10 years ago that I personally had encrypted files with Kryptos (.enc files) and some other self exacting EXE files I created with abi-coder. I cannot for the life of me remember the password, or combination of passwords I used, or what I put in the files and its become a personal project of mine to gain access and started with the .enc files as it seemed easier than an exe file. I'm not sure if its possible or if JtR is even the proper tool to use? I've played with some of the jumbo version features like zip2john.exe to extract the password hashes from a zip file. Had success with that and moved to try and figure out how to extract the hash from the .enc file that Kryptos created. I downloaded the version of Krytpos I think that I used to create the .enc files and created another .enc file with a weak password (testtest or hello) to see if I could figure it out with an easy password to see if I was on the right track instead of waiting a long time working on the real file. I think this is kind of like running it on a zip file, but I'm assuming the .enc file is a very different format. Just for the heck of it I tried zip2john on it, didn't work. Also tried running john on the .enc file directly, I don't think that worked because it thinks its a type whirlpool? Doesn't seem to find the password. I'm sorry if this is a stupid question, but I've gone through the tutorials and some history of this email list and can't seem to find anything relating to working with other file types that someone hasn't directly written a tool to extract the hashes from? Perhaps JtR isn't used in this capacity and I'm heading in the wrong direction. Any knowledge or direction would be greatly appreciated. It's cool there is a community of people with this that seem to want to help each other.
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