Base64 Assistance

[Un1versality (Un1)]

Hello, so.

I’d like to know if it is possible to execute code from an encoded base64 string in roblox.

So for example:

local HelloWorldCode = "cHJpbnQoIkhlbGxvIFdvcmxkIik="

Would it be possible to execute that Base64 code inside it which says:

print("hello world")

as an example.

Any help is appreciated.

[CZXPEK (czo)]

-- Lua 5.1+ base64 v3.0 (c) 2009 by Alex Kloss <alexthkloss@web.de>
-- licensed under the terms of the LGPL2

-- character table string
local b='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'

-- encoding
function enc(data)
    return ((data:gsub('.', function(x) 
        local r,b='',x:byte()
        for i=8,1,-1 do r=r..(b%2^i-b%2^(i-1)>0 and '1' or '0') end
        return r;
    end)..'0000'):gsub('%d%d%d?%d?%d?%d?', function(x)
        if (#x < 6) then return '' end
        local c=0
        for i=1,6 do c=c+(x:sub(i,i)=='1' and 2^(6-i) or 0) end
        return b:sub(c+1,c+1)
    end)..({ '', '==', '=' })[#data%3+1])
end

-- decoding
function dec(data)
    data = string.gsub(data, '[^'..b..'=]', '')
    return (data:gsub('.', function(x)
        if (x == '=') then return '' end
        local r,f='',(b:find(x)-1)
        for i=6,1,-1 do r=r..(f%2^i-f%2^(i-1)>0 and '1' or '0') end
        return r;
    end):gsub('%d%d%d?%d?%d?%d?%d?%d?', function(x)
        if (#x ~= 8) then return '' end
        local c=0
        for i=1,8 do c=c+(x:sub(i,i)=='1' and 2^(7-i) or 0) end
        return string.char(c)
    end))

Source: Base64 encode/decode for Codea (Lua) · GitHub

[Un1versality (Un1)]

Isn’t that only Decoding and Encoding? Not executing? But sure, I guess I’ll try.

[CZXPEK (czo)]

just loadstring the decoded code

[Un1versality (Un1)]

Alright, will for sure try if that’ll work.

[Un1versality (Un1)]

Yep! Works! Thanks. Really appreciated.