Account

Name
Roland Jansen
Username
roland
Joined
Oct. 18, 2010, 2:25 p.m.

Rank
112
Points
17,607
Trophies
Gold0
Silver2
Bronze1

Active Challenges (4)

LevelNameAttemptsDate
Number Sequence — Part 54 / 15April 13, 2013, 8:49 p.m.
One-Time Pad with Flaws10 / 20Dec. 30, 2010, 11:40 a.m.
Monoalphabetic Substitution6 / 15Nov. 19, 2010, 3:41 p.m.
Enigma Combinatorics4 / 20Nov. 15, 2010, 1:15 p.m.

Solved Challenges (41)

LevelNamePointsDate
Autokey Cipher104Oct. 20, 2018, 10:17 a.m.
Number Sequence — Part 9111Nov. 25, 2017, 8:40 a.m.
Number Sequence — Part 8125Sept. 18, 2015, 4:51 a.m.
Number Sequence — Part 6117March 29, 2015, 10:24 a.m.
Heartbleed — Part 1 150Aug. 29, 2014, 6:21 p.m.
Enigma Messages with Repeated Letters — Part 1133Sept. 29, 2013, 12:31 p.m.
Nils away on travel133Aug. 11, 2013, 11:08 a.m.
Snow White and the seven dwarfs133April 22, 2013, 11:27 a.m.
Enigma Messages133Jan. 25, 2013, 9:54 p.m.
A hidden word200Jan. 7, 2013, 6:49 a.m.
Enigma Part 11,128Oct. 28, 2012, 3:11 p.m.
Beaver Code101Oct. 27, 2012, 10:15 p.m.
Factorization Cipher — Part 1100Oct. 27, 2012, 9:08 a.m.
Letter to the Templars — Part 32,000Oct. 9, 2012, 6:18 p.m.
Letter to the Templars — Part 2200July 31, 2012, 6:18 p.m.
Letter to the Templars — Part 1200July 17, 2012, 8:28 p.m.
Number Sequence — Part 4114April 25, 2012, 6:15 a.m.
Number Sequence — Part 3200March 31, 2012, 8:06 a.m.
ECDH-Key Exchange for Beginners133Feb. 26, 2012, 4:55 p.m.
A really long number sequence1,237Dec. 6, 2011, 3 p.m.
Grille Cipher200Oct. 15, 2011, 1:48 p.m.
Broadcasting and low exponent — RSA Attack1,269Sept. 21, 2011, 1:21 p.m.
Alice's Birthday Party (Part 2)1,160Sept. 20, 2011, 2:51 p.m.
Alice's Birthday Party (Part 1)1,161Sept. 19, 2011, 12:04 p.m.
Affine Codes / Modulo Arithmetic with N / Extended Euclid200Sept. 9, 2011, 11:43 a.m.
Pigpen with a twist — Part 31,547Sept. 8, 2011, 7:55 p.m.
Pigpen with a twist — Part 1200Sept. 5, 2011, 10:17 p.m.
Modified Caesar Cipher125Sept. 5, 2011, 7:08 p.m.
Number Sequence — Part 2150July 12, 2011, 3:50 p.m.
Kaskade-S/T — Part 1102May 6, 2011, 12:04 p.m.
Not-so-Secret Message from Malawi — Part I (RSA)1,187May 4, 2011, 6:08 p.m.
Brute-Force-Attack on Triple-DES with Reduced Key Space1,187May 4, 2011, 10:29 a.m.
Cracking SHA1-Hashed Passwords1,485April 14, 2011, 2:25 p.m.
Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 1114April 13, 2011, 12:30 p.m.
Original Caesar Cipher117Dec. 20, 2010, 2:48 p.m.
Molehunt (Part 2/3)105Nov. 10, 2010, 2:55 p.m.
Molehunt (Part 1/3)105Nov. 10, 2010, 2:18 p.m.
Caesar Encryption107Nov. 5, 2010, 1:17 p.m.
A modified homophonic cipher with reduced alphabets — Part 2107Nov. 5, 2010, 12:59 p.m.
A modified homophonic cipher with reduced alphabets — Part 1107Nov. 5, 2010, 12:41 p.m.
Number Sequence120Oct. 18, 2010, 4:27 p.m.

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