MysteryTwister - The Cipher Challenge Contest

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The Cipher Challenge Contest

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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

Sharon

Solved Level 2 challenge Polyphonic Substitution Cipher — Part 1

Sharon

Solved Level 1 challenge Playfair with hints about the grid

zhouao

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

hmd0102

Solved Level 1 challenge Modified Caesar Cipher

hmd0102

Solved Level 2 challenge Broadcasting and low exponent — RSA Attack

hmd0102

Solved Level 1 challenge Cryptanalysis Hacking Puzzles — Part 2

hmd0102

Solved Level 1 challenge From Russia with Love

hmd0102

Solved Level 1 challenge One-Time Pad with Flaws

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