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Daily AlpacaHack

A CTF challenge series with fun puzzles to enjoy every day

What is Daily AlpacaHack?

We regularly publish simple, beginner-friendly or educational CTF challenges!

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Today's Challenge
2501
The 3rd
Crypto
Hard
25 solves
Submissions (latest 3)
prof

SOLVED!

Sep 22, 3:03 PM

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admin
AlpacaHack 2100
Misc
Welcome🌱
2,214 solves
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2501
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Crypto
Hard
25 solves
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Writeups

Writeup for nested eval

baumroll1234

ja
nested eval

17 hours ago

Rows:

The future path

Topic: RNGReleased: Mar 16, 2026

100 solves
Crypto
Medium5.5

by

pppp4649

pppp4649

To the future!🚀

Beginner Hint 1 (AI-translated)
  • Press 1 to print a random number.
  • Press 2 to challenge yourself to predict the next random number that will be printed.
  • Can you find a way to foresee future random outputs?
Beginner Hint 2 (AI-translated)
  • Python's Random.random is not cryptographically secure.
  • If you can observe enough outputs from the same generator, you may be able to predict its future outputs.
  • You can also find public tools on GitHub and elsewhere for predicting these outputs.
the-future-path.tar.gz

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