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Computer science theory

Course: Computer science theory > Unit 2

Lesson 3: Cryptography challenge 101

The discovery

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One cloudy afternoon...

You are walking down the street, when suddenly, an object is tossed out of a speeding car...

It looks like a bag...

You are curious...

Looks suspicious...so you snap a few photographs of the contents:

One item really jumps out at you, it looks like some kind of secret code...

You return home just in time to hear the evening news...

“Two thieves in their mid 20s are suspected to be in the area, they have been known to strike in neighbouring towns. Just earlier this week the AMCO insurance office was burglarized and documents were stolen. Reward is being offered for information leading to their arrest....”

To break this code you must retrace their steps...

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Aravind Suresh
Posted 7 years ago. Direct link to Aravind Suresh's post “Couldn't you just note th...”
Couldn't you just note the license plate? Easier. :)))))
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(41 votes)
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- veterinarian.in.progress
  Posted 8 months ago. Direct link to veterinarian.in.progress's post “it was "a speeding car", ...”
  it was "a speeding car", so you can't read it
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  (0 votes)
Euler
Posted 10 years ago. Direct link to Euler's post “I feel like its a bunch o...”
I feel like its a bunch of clocks. Hands of a clock?
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(5 votes)
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💎🕋TurboGamer_360🕋💎
Posted 4 years ago. Direct link to 💎🕋TurboGamer_360🕋💎's post “also what kind of stupid ...”
also what kind of stupid person would throw out their on bag.
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(6 votes)
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Timothy
Posted 7 years ago. Direct link to Timothy's post “If the bag was thrown out...”
If the bag was thrown out of a speedy car, shouldn't the paper be torned?
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josh
Posted a year ago. Direct link to josh's post “_Newspaper article transc...”
Newspaper article transcript:
The whole-grain goodness of blue chip dividend stocks has its limits. Utility stocks, consumer staples, pipelines, telecoms, and real estate investment trusts have all lost ground over the past month, even while the broader market has been flat. With the bond market signalling an expectation of rising interest rates, the five-year rally for steady blue-chip dividend payers has stalled. Should you be scared if you own a lot of these stocks, either directly or through mutual funds or exchange-traded-funds? David Baskin, president of Baskin Financial Services, has a two-pronged answer: Keep your top-quality dividend stocks, but be prepared to follow his firm's example in trimming holdings in stocks such as TransCanada Corp., Keyera Corp., and Pembina Pipeline Corp. Lets have Mr Baskin run us through his thinking on dividend stocks, which are a big part of the portfolios his firm puts together for clients.
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(5 votes)
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Meir Zagadanski
Posted 8 years ago. Direct link to Meir Zagadanski's post “looks to me like semaphor...”
looks to me like semaphore??
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(3 votes)
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ad
Posted 7 years ago. Direct link to ad's post “It might be about plantin...”
It might be about planting a bomb or something about an explosion?
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(3 votes)
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Beetle
Posted 4 years ago. Direct link to Beetle's post “its a set of times i thin...”
its a set of times i think
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(3 votes)
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TJ Nichols
Posted 6 years ago. Direct link to TJ Nichols's post “People keep hinting there...”
People keep hinting there is something to do with the newspaper but im pretty far in and it still seems like a load of waffle to me... Is there something inportant hidden in the waffle or no? that is if you can answer without giving anything away.
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(2 votes)
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qq928471961
Posted 7 years ago. Direct link to qq928471961's post “Why your fingers look so ...”
Why your fingers look so green?
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(2 votes)
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