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Ringzer0CTF – Cryptography – I lost MY password Can you find it?

Ringzer0CTF – Cryptography – I lost MY password Can you find it? Objective : Get the flag…… I don’t know what else to put here Solution : So this level give you a tar file I downloaded the tar and unzipped it There is a policies folder with the following folders inside 02/06/2014   09:20 AM     <DIR>           . 02/06/2014   09:20 AM     <DIR>           .. 02/05/2014   03:59 PM     <DIR>           {31B2F340-016D-11D2-945F-00C04FB984F9} 02/05/2014   03:59 PM     <DIR>           {6AC1786C-016F-11D2-945F-00C04fB984F9} 02/06/2014   09:22 AM     <DIR>           {75DE8F0A-DEC0-441F-AE29-90DFAFCF632B} 02/06/2014   08:20 AM     <DIR>           {874C2133-64E1-4F2C-8BD8-71D9BD59643D} 02/06/2014   08:29 AM      <DIR>           {C7BD6C6D-A1C8-4C23-815E-3D8D4187640F}                0 File(s)               0 bytes                7 Dir(s)   326,238,683,136 bytes free I poked through the directory and found an i
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Ringzer0 CTF - Cryptography - Martian Message 2

RingZer0CTF   - Cryptography – Martian Message part 2 Objective: I think that's the key "fselkladfklklakl" KDERE2UNX1W1H96GYQNUSQT1KPGB Solution: So we have the key and the encrypted message we just need to figure out what kind of encryption was used to get the key I used this website with their Vigenere cipher to decode it https://www.dcode.fr/vigenere-cipher FLAGU2JNU1R1X96VOFNKHLB1GEWQ
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RingZer0 CTF – Cryptography – Fashion Victim

RingZer0 – Cryptography – Fashion Victim Objective: Get the flag Solution: On this page we see a picture of a on old apple computer with the tag of The New Apple TV across the top, with snow playing on the screen The source for the page is pretty basic, just loading a background image and the gif of snow. <!DOCTYPE html> <html> <head> <title>The new Apple TV</title> </head> <body> <style type="text/css"> body { background-color: #5c3302; } h1 { color: white; } .tv { position: relative; margin: auto; margin-top: 20px; width: 471px; height: 616px; background-image: url(/images/mac.png); } .screen { width: 322px; height: 237px; position: absolute; left: 72px; top: 80px; } </style> <center><h1>The new Apple TV</h1></center>
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RingZero CTF - Forensics – File Recovery

RingZero CTF - Forensics – File Recovery Objective: This problem is a tar file Get the key Solution: Download the tar file Untar it We get two files in here a file name flag.enc and a file called private.pem This is what’s in the flag.enc file ” RøµìZ_ÝÎb0 ž ~ “ ñ This is what’s in the private.pem -----BEGIN RSA PRIVATE KEY----- MIICXAIBAAKBgQDFDxrLz/lBabo/JrRvKN47IRzUgm/LzG9zbn3g8HMnPIpy4ZOF fhjblvb8iNeFMbUIDAT2QmsqDRJhHH7xUVfC6DiYB3YuKJC/RBIHzqlBsxWXI5DF ikyS3yT6ThQap3JZEKE7fVXHHJmea4VrsRVhWG6ztoPYf+OfiMyzj0IV3QIDAQAB AoGAX1QnSmGZ2yMijlpS/1Nt7nzeTY+sNZL4d4cELkUj799BusGVdAbET7aAVTp9 yFl7kiD+ZYNMBFO+iGwYnPUU1sPSlFcS1YNu2S+4ds2ym1VfZu2drTN5qUIGIm22 2mgyOG1CSx421Ns4X5qIexkQ1gOnqaBuD7Mi3D19c5mK66ECQQDlt99Jcw7Jh1Gd TMy8cQ7EBI82YPedRP5SnAv0/sCIgcsBmbABO6WwCeS1BVjoicf+pPmIy3YkyiyO 8JIa9GJLAkEA25qwREClnm+2qIBRLal+pG8t7xZlEya+HrlX3ogThf/9GybfImzK ZQagbom3sDmRTeu6PhDhu4XZS7D4gfIPdwJANlDrsupJrM0aNx9ZqZTx8NdDJZB3 +++8Urwi96Lk02IdJhu4y
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RingZero CTF - Cyrptography - You're Drunk

RingZero CTF - Cyptography - Your're Drunk Problem: Ayowe awxewr nwaalfw die tiy rgw fklf ua xgixiklrw! Tiy lew qwkxinw. Solution: So just looking at this one it looks like its formatted as a sentence. There is spacing between words, punctuation and capitalization. At fist I thought Cesar cipher, but I ran through some shifts and none of them came back with english words. So then I though substitution cipher. We know from frequency analysis of the English language some good starting points. The most common letter would be "E" The most common double letters would be "OO", "EE" and"SS"  so let start with that and see what we can come up with This site is a great resource for some of the assumptions I'm making here ( http://practicalcryptography.com/ciphers/monoalphabetic-substitution-category/simple-substitution/ ) I used this website to count the letter frequency for me ( https://www.dcode.fr/frequency-analysis )
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