MysteryTwister C3
NUMBER OF ACTIVE MEMBERS:

8205
Follow us: Facebook Twitter
 



Level II Challenges (96)

Page 1 of the challenges in Level II, ordered by date posted (the most recent appear first).

Extended Handycipher — Part 2

[kallick-05] - 2 users already solved this challenge.
 
 
 

Extended Handycipher is an enhancement of the newly designed cipher Handycipher, which permits pen-and-paper encrypting and decrypting, while providing a significantly high level of security. From the 905-character plaintext 229 characters somewhere in it are known.
Read more...

Click here to get to the corresponding forum topic to share your opinion.
Click here to download the challenge.
Click here to download the additional file of the challenge.

Author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published on: 2015-03-27 15:27
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#2) Achieved points (Global score) y-m-d - h:m:s

Michael Möller (michaelm) 1185 (118745) 2015-10-23 09:07:20
george lasry (george4096) 1126 (281491) 2017-05-31 10:18:56
You must be logged in to solve the challenge
Pages [1] 1 Show All  
 
 
powered by the CrypTool project  CrypTool

 

   +++    [13:27 - 23.08.2017] tenchijin solved the Level II challenge 'Broadcasting and low exponent — RSA-Attack'    +++    [10:07 - 23.08.2017] nurnicu solved the Level I challenge 'Number Sequence — Part 2'    +++    [18:15 - 22.08.2017] D3d4lu5 solved the Level II challenge 'ASAC — A Strong(er) ADFGVX Cipher — Part 1'    +++    [18:13 - 22.08.2017] D3d4lu5 solved the Level II challenge 'Double Column Transposition — Part 3'    +++    [18:11 - 22.08.2017] D3d4lu5 solved the Level II challenge 'Double Column Transposition — Part 2'    +++