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Level II Challenges (133)

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

Homophonic Encryption — Part 2

[kopal-02] - 18 users already solved this challenge.
 
 
 

Homophonic encryption is a modified version of the monoalphabetic substitution: One plaintext symbol can be substituted by more than one ciphertext symbol. In part 2 of this series we consider a distribution of the homophones based on English language statistics. This is a ciphertext-only challenge. Try to crack the ciphertext and extract a specific word from the plaintext.
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Authors: This email address is being protected from spambots. You need JavaScript enabled to view it.,This email address is being protected from spambots. You need JavaScript enabled to view it.
Published on: 2019-05-08 21:30
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#18) Achieved points (Global score) y-m-d - h:m:s

George Lasry (george4096) 1725 (302230) 2019-05-10 22:02:30
Armin Krauss (argh) 1725 (188214) 2019-05-10 22:04:09
Snake (snk) 1725 (86245) 2019-05-10 22:29:03
Alain Collignon (vexilla72) 1725 (96903) 2019-05-10 23:47:11
#5 Viktor (Veselovský) 1725 (155163) 2019-05-11 00:58:36
#6 H. Lautenschlager (helmi) 1725 (32947) 2019-05-11 19:53:59
#7 Kurt Gebauer (Yokozuna) 1725 (177433) 2019-05-11 20:56:51
#8 E.T (Ertheb) 1613 (81809) 2019-05-13 19:28:56
#9 D3d4lu5 (D3d4lu5) 1576 (297709) 2019-05-14 06:05:32
#10 Eugene (lim0n) 1523 (62911) 2019-05-16 13:32:40
#11 sarah b (silva) 1485 (26264) 2019-05-18 19:57:39
#12 Random Dude (rnd) 1469 (93505) 2019-05-19 05:44:02
#13 George (Theofanidis) 1469 (112184) 2019-05-19 16:12:16
#14 Dominik M. (Sgt. Pepper) 1433 (97919) 2019-05-22 15:21:28
#15 Danny Higgins (hamster147) 1423 (37889) 2019-05-22 21:56:59
#16 Stephan (Stephje1978) 1254 (26961) 2019-07-20 18:47:10
#17 Bart den Hartog (Bart13) 1251 (144081) 2019-07-23 00:42:48
#18 gerdw (gerdw) 1246 (30489) 2019-07-27 23:58:09
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   +++    [18:58 - 13.10.2019] Sph1003 solved the Level I challenge 'Number Sequence'    +++    [11:22 - 13.10.2019] Lemmynator solved the Level I challenge 'Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 1'    +++    [10:29 - 13.10.2019] gerdw solved the Level II challenge 'Lunchtime Attack on the Fully Homomorphic Encryption Scheme'    +++    [08:31 - 13.10.2019] SirAbacus solved the Level I challenge 'Number Sequence — Part 2'    +++    [23:14 - 12.10.2019] Tom solved the Level I challenge 'A hidden word'    +++