Which hints is it talking about, is it the ones on the exercises, or is it the hints on the clues?

The ones in the exercises. You can use the hints listed here, and anything you can figure out from the comments.

I am so stuck on: What values do you get after you XOR the following message with the given pad? (use same encryption technique using in final code) message: hi pad: 'open me to read' that it is not even funny. Nothing i have tried is working, any help?

I've heard (where y is a vowel) that you use 0 for consonants, and 1 for vowels. So, if I changed gwang ho, it would be 00100 01

I am so lost at this point, trying to figure out how to understand what the angle symbols are and what the clue to translate them

The angles represent sets of numbers in base 4. The first step is to convert the angles into sets of 2 numbers, and convert the whole thing into base 2. Hint: ``` 0 | 3 ------|------ 1 | 0 2 ``` (Clue #4 Pictures 3 and 4 starting at "These notes look like...")

Main content

Computer science

Course: Computer science > Unit 2

Lesson 3: Cryptography challenge 101

Checkpoint

Google Classroom

Congratulations, you've made it this far!

You likely haven't decrypted the secret message found in The Discovery just yet.

Don't worry, some users report taking at least 3 weeks to work through the process without any further hints.

You have two ways to complete this challenge Master or Apprentice.

Master
This is for users who want to decrypt without any further hints. No easy task. You can continue grinding away and when you are ready, answer all of the questions in Crypto Checkpoint 2 & 3 without using the hints. Remember, hints usage can be tracked through your profile.

Apprentice
This is for hard working users who are still stuck, yet determined to finish. We applaud your grit. You can continue on to Crypto Checkpoint 2 and feel free to explore the hints. The hints will give away information related to the encryption. Hopefully these hints will lead you towards the solution after which you can go on to Crypto Checkpoint 3.

The police are awaiting your information...

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Kevin
Posted 8 years ago. Direct link to Kevin's post “Can someone clarify the q...”
Can someone clarify the question from checkpoint2:
In the final code, what would be the value of the following pad?
pad: "One cloudy afternoon"
Does this mean translate the pad into binary?
or use this pad to translate the first part of the message
or something else.
the hint says
The answer is a sequence of 18 binary digits
For example: HELP = 0100
using that I produce 18 0/1's based on the pad phrase,
101001100100100110
but not correct.
the 'tooltip' when you click in the answer box is:
acceptable formats is an integer, like 6.
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(11 votes)
Answer
Keiko
Posted 6 years ago. Direct link to Keiko's post “I don't really want to co...”
I don't really want to complain.... but I feel like the practice (the next 2) are kinda impossible, since I don't know any of the things beforehand, since they don't teach us such thing.
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(5 votes)
Answer
Keiko
Posted 6 years ago. Direct link to Keiko's post “This is honestly much too...”
This is honestly much too hard... I've spent about 4 hours trying to do the crypto checkpoint 2. I don't understand a thing... I'm just gonna move on.
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(4 votes)
Answer
Max Colantoni
Posted 6 years ago. Direct link to Max Colantoni's post “I got a few questions, In...”
I got a few questions, In Crypto Checkpoint 2 it seems like they wan't you to know these things beforehand. It never explains it in any of the previous ones. Am I missing something?
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(5 votes)
Answer
Yang Ethan
Posted 9 years ago. Direct link to Yang Ethan's post “Which hints is it talking...”
Which hints is it talking about, is it the ones on the exercises, or is it the hints on the clues?
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(3 votes)
Answer
- Miss Lorenz
  Posted 9 years ago. Direct link to Miss Lorenz's post “The ones in the exercises...”
  The ones in the exercises. You can use the hints listed here, and anything you can figure out from the comments.
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  (4 votes)
Leslie Price
Posted 6 years ago. Direct link to Leslie Price's post “I am so stuck on: What va...”
I am so stuck on:
What values do you get after you XOR the following message with the given pad?
(use same encryption technique using in final code)
message: hi
pad: 'open me to read'

that it is not even funny. Nothing i have tried is working, any help?
Button navigates to signup pageComment on Leslie Price's post “I am so stuck on: What va...”
(3 votes)
Answer
- Gwang Ho
  Posted 5 years ago. Direct link to Gwang Ho's post “I've heard (where y is a ...”
  I've heard (where y is a vowel) that you use 0 for consonants, and 1 for vowels.
  So, if I changed gwang ho, it would be 00100 01
  Button navigates to signup page
  (4 votes)
erc4444
Posted 7 years ago. Direct link to erc4444's post “Why would somebody leave ...”
Why would somebody leave those clues like a trail? Unless they were false. Like who would toss a bag with a clue out of there car?
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(4 votes)
Answer
John Moore
Posted 6 years ago. Direct link to John Moore's post “I am so lost at this poin...”
I am so lost at this point, trying to figure out how to understand what the angle symbols are and what the clue to translate them
Button navigates to signup pageComment on John Moore's post “I am so lost at this poin...”
(2 votes)
Answer
- Shiko Kudo
  Posted 6 years ago. Direct link to Shiko Kudo's post “The angles represent sets...”
  The angles represent sets of numbers in base 4. The first step is to convert the angles into sets of 2 numbers, and convert the whole thing into base 2.
  Hint:
  0 | 3 ------|------ 1 | 0 2
  
  (Clue #4 Pictures 3 and 4 starting at "These notes look like...")
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  (3 votes)
mike.j.cashin
Posted 4 years ago. Direct link to mike.j.cashin's post “This makes literally no s...”
This makes literally no sense. Where else can we go for help, because the "hints" in the checkpoint help none at all.
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(3 votes)
Answer
- Paulus Himawan
  Posted 2 years ago. Direct link to Paulus Himawan's post “It's actually helpful, th...”
  It's actually helpful, though not directly. Go through all the "clues" and read the comments carefully, I'm sure you'll get some insight.
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  (0 votes)
LyLena Estabine
Posted 8 years ago. Direct link to LyLena Estabine's post “I am very confused. On th...”
I am very confused. On the first question for Crypto Checkpoint 2, I do not know how to turn "in" into binary. I put it into the Polybus square and got I=3,0 and N=5,3 (I am not sure if that is correct or not.) Where am I supposed to go from there?
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(3 votes)
Answer
- Cornifer
  Posted 5 years ago. Direct link to Cornifer's post “Use binary to convert eac...”
  Use binary to convert each individual number into a 3-digit binary sequence.
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  (0 votes)