Level II Challenges (155)
Page 1 of the challenges in
Level II, ordered by date posted (the most recent appear first).
|
|
|
|
The challenges for the weakened ElsieFour serve as an exercise and use an intentionally weakened version of LC4. ElsieFour combines ideas of modern RC4 stream cipher, historical Playfair cipher and plaintext-dependent keystreams. It can be computed manually. Part 2 is a partly-known key challenge which provides 12 consecutive characters of the key. 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: 2018-04-28 16:36 |
|
Maximum number of attempts for this challenge: 15 |
|
|
All successful users of this challenge
No one solved the challenge right now. Be the first! |
|
|
|
|
|
You must be logged in to solve the challenge |