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Instead of giving similar clues for each challenge... one of the stages doesn't apply to the first challenge... work out which.
- C&P the data from pastebin into a file called raw.txt- You can do it by hand or by writing a script to automate the process... you need to next read the data from raw.txt and rot13 decode the data. Encode/Decode is the same as its just shifting the characters by 13. You can either write this to a new temp file or carry on to the next step...- base64 decode the tmp.txt and write the output from base64 decode to a .png file.- You should now be able to open the file and view the image - thats it. The first link doesn't include rot13 encoding and therefore looks a tad more like base64 encoding.