![]() I am guessing at this point he is about $3200 poorer from A and B combined. Guy bought what he thought was the hookup on a random dimsport flash tool with about zero other clues for anything else and discovered it was mostly useless. People who sell open files usually sell them for more money than locked ones, but hey it's 3k for a tune, that is a bit much, unless we're talking cars that are worth a few hundred grand Title: Re: DimSport MyGenius FPF File Format XOR Cipher If we could figure out how to encode/decode the files, we could share tunes and never need to be charged $3k for a tune again. I was wondering if anybody had any ideas. I can't get my hands on a working copy of Race Evo or DSManager to know for sure (and they sometimes pack their DLLs/apps with Themida.), but I do have some files that seem to line up pretty much 99%. ![]() From what I can tell, they do not have the handheld device encryption/decryption/cipher algorithm in any DLL related to the MyGenius client. However, they do a special kind of XOR cipher encryption for the rest of the file. I was able to reverse the header XOR cipher that they do. Once you decrypt your FPF/MYG file, you get `GEN_FILE`, a magic number + header length + maybe some kind of file type + checksum. Their client uses `polarcrypto.dll` to derive keys from your key + other passwords, as well as decrypt your data. ![]() Every MyGenius has a private + public key store on it (License.lic)
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