The following resources are available for practicing your Cryptography:
Selected Challenges
DISCLOSURE:
The following challenges were all taken from previous National Cyber League competitions starting in Fall 2015 or are altered versions of challenges created for NCL competitions. All credit for these challenges is due to Cyber Skyline and the associated Player Ambassadors.
For challenges which are the intellectual property of Cyber Skyline, we cannot release the answers.
Selected challenges for practicing your Cryptography can be found below.
Numeric-1 (Easy)
by CryptoKait
Decrypt this cipher.
Crypto-1 (Easy)
by CryptoKait
Decrypt this cipher.
Crypto-2 (Easy)
by CryptoKait
Decrypt this cipher.
Mother of Ciphers (Medium)
by MakoMcGill
A symbolic substitution cipher for you to decrypt.
Crypto-Onions (Hard)
by CryptoKait
The best challenges, like ogres, have layers. Try this multi-layer encryption to test yourself in all of CryptoKait’s favorite ciphers.
Blog Posts
- Category: Cryptography
- Category: Steganography
Live Coaching Sessions
- 2019 Fall – CryptoKait’s CryptoCamp for the NCL Games
- 2020 Spring – An Intro to Open Source Intel & Cryptography
- 2020 Spring – Scanning into the Void & Hiding in Plain Sight with Steganography
- 2020 Fall – Cryptography and Password Cracking
CryptoKait 
You must be logged in to post a comment.