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Time Challenge 1
yeah that index.php?b64=decryptedString will very help you. i´m not speaking about cypher, no. you need to write the script that will show you the page without processing it on the server. then, when you have the string, you can decrypt it and enter it on the place "decryptedString" you dont need to program some programs (in c++ etc.) that will replace it automatically. i did not this challenge yet, i am only thinking :D