Egg 16: Ghost Room

Challenge:

Ghosts only come out when it’s dark…

banner:

Solution:

First we try to see if there is anything hidden in the image, but to no avail..

later we notice a reference to dark in the source of the challenge overview page,

$('#footer-wrapper').append(
     '<span id="bulb">' +
     '<a href="#" onclick="javascript:toggleDark();"><img src="images/bulb.png"></img></a>' +
     '</span>'
);

So we click this button, and now the banner for the challenge has changed

and so has the description

Dark is beautiful. A GOST with chaining appears and has a message for you:

d5++xytj6RiGwmqEecm63Kow7RZGAAHh
VFsksHFuj/Anap7pWHDZ1XQw8DAApUEN
R5ExOGUKTzGOtvSAlCHkHq6NneL6ZUTX
ej8Taxz+kHK9w9U8dxTOSksZ4HKS2YYD

GOST is a hashing algorithm (wiki link).

d5++xytj6RiGwmqEecm63Kow7RZGAAHhVFsksHFuj/Anap7pWHDZ1XQw8DAApUENR5ExOGUKTzGOtvSAlCHkHq6NneL6ZUTXej8Taxz+kHK9w9U8dxTOSksZ4HKS2YYD

779fbec72b63e91886c26a8479c9badcaa30ed16460001e1545b24b0716e8ff0276a9ee95870d9d57430f03000a5410d47913138650a4f318eb6f4809421e41eae8d9de2fa6544d77a3f136b1cfe9072bdc3d53c7714ce4a4b19e07292d98603

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