Answered: to a high end IOT lock. Crack it. What…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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cybersecurity course question

We have found the source code to a high end IOT lock. Crack it.

What programming language was this written in?

What is the flag?

CHECK = [124, 92, 164, 468, 124, 112, 68, 112, 468, 496, 500, 492, 492]
function riddle(x)
step1 = xor(x, 0x46)
(step1 + 10) << 2
end

function main()
println("I am very fancy. Can you solve my riddle")
inp = readline()
bytes = Int.(collect(inp))
solve = riddle.(bytes)
if solve == CHECK
println("Congrats")
else
println("Nope")
end
end

if abspath(PROGRAM_FILE) == @__FILE__
main()
end

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