MysteryTwister - The Cipher Challenge Contest

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The Cipher Challenge Contest

380
Challenges

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You like riddles? Then this is your place!

MysteryTwister is a cipher contest, where you can solve cryptographic riddles (challenges) of different difficulty levels. If you are successful, you will be inducted into the Hall of Fame.

Challenges in four levels

Four degrees of difficulty, from pen & paper to complex mathematical problems

DimKrie

Solved Level 2 challenge Letter to the Templars — Part 3

panpsonis

Solved Level 1 challenge The Syllabary Cipher – Part 1

KafteriPiperia

Solved Level 2 challenge Not-so-Secret Message from Malawi — Part I (RSA)

KafteriPiperia

Solved Level 2 challenge Brute-Force-Attack on Triple-DES with Reduced Key Space

KafteriPiperia

Solved Level 2 challenge Broadcasting and low exponent — RSA Attack

KafteriPiperia

Solved Level 2 challenge Alice's Birthday Party (Part 2)

KafteriPiperia

Solved Level 2 challenge Alice's Birthday Party (Part 1)

Muhaimin Hassanein

Solved Level 1 challenge Wheatstone Cryptograph — Part 1

Learn, Hack & Connect

Solve challenges and connect with other users on Discord

Challenges in four levels

Four degrees of difficulty, from pen & paper to complex mathematical problems

Enter the Hall of Fame

Master challenges in four levels and secure your spot in the Hall of Fame

Start exploring the challenges

Our 7 most solved challenges

Number Sequence
Level 1

Original Caesar Cipher
Level 1

Number Sequence — Part 2
Level 1

Caesar Encryption
Level 1

Beaver Code
Level 1

Number Sequence — Part 3
Level 1

Letter to the Templars — Part 1
Level 1