Account

Name
Julian
Username
Lemmynator
Joined
Oct. 10, 2016, 1:41 p.m.

Rank
95
Points
20,822
Trophies
Gold0
Silver0
Bronze0

Active Challenges (3)

LevelNameAttemptsDate
Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 22 / 20Oct. 13, 2019, 8:04 p.m.
Enigma Combinatorics8 / 20Sept. 6, 2019, 11:16 a.m.
Number Sequence — Part 51 / 15March 23, 2018, 1:49 p.m.

Solved Challenges (69)

LevelNamePointsDate
Double Columnar Transposition100Sept. 27, 2020, 2:30 p.m.
Hill Cipher with Sudoku Key100Sept. 26, 2020, 4:57 p.m.
Playfair with hints about the grid100Sept. 25, 2020, 1:02 a.m.
Brute-Force-Attack on Triple-DES with Reduced Key Space1,083Sept. 24, 2020, 1:25 a.m.
Factorization Cipher — Part 31,086Sept. 17, 2020, 3:40 p.m.
Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 1100Oct. 13, 2019, 11:22 a.m.
Cryptanalysis Hacking Puzzles — Part 2100Oct. 10, 2019, 11:20 a.m.
ECDH-Key Exchange for Beginners100Oct. 10, 2019, 11:05 a.m.
A hidden word — Part 2100Oct. 9, 2019, 5:34 p.m.
Autokey Cipher100Sept. 16, 2019, 7:19 p.m.
Kaskade-S/T — Part 21,087Sept. 7, 2019, 7:26 p.m.
Kaskade-S/T — Part 1100Sept. 7, 2019, 1:38 a.m.
Playfair Encryption100Aug. 11, 2018, 12:34 a.m.
Heartbleed — Part 2100Aug. 9, 2018, 3:05 p.m.
Heartbleed — Part 1 100Aug. 9, 2018, 2:58 p.m.
Number Sequence — Part 10101Aug. 6, 2018, 2:48 p.m.
Number Sequence — Part 9100Aug. 6, 2018, 2:30 p.m.
A really long number sequence1,092Aug. 6, 2018, 2:19 p.m.
Factorization Cipher — Part 21,092Aug. 4, 2018, 1:36 a.m.
The Last Note100Aug. 3, 2018, 12:52 p.m.
Image Noise100Aug. 2, 2018, 11:53 p.m.
Hybrid Encryption I1,089Aug. 2, 2018, 2:51 p.m.
Trifid Cipher100July 31, 2018, 4:51 p.m.
¿No Hablas Español? No problemo!100July 31, 2018, 3:46 p.m.
A Secret Message from Castle Mansfeld100July 29, 2018, 8:41 p.m.
Enigma Part 11,089July 27, 2018, 3:52 p.m.
Molehunt (Part 2/3)100July 27, 2018, 2:36 p.m.
Molehunt (Part 1/3)100July 27, 2018, 1:48 p.m.
Enigma Messages with Repeated Letters — Part 1100July 26, 2018, 11:33 a.m.
How do you become a big cryptographer?100July 25, 2018, 4:52 p.m.
The Book Code: A Challenge for Bookworms100March 17, 2018, 12:19 a.m.
Advent-Challenge — Part 1101March 5, 2018, 4:38 p.m.
Number Sequence — Part 6100March 4, 2018, 9:17 p.m.
Number Sequence — Part 8100March 4, 2018, 9:11 p.m.
Classical Ciphers^3100March 3, 2018, 9:26 a.m.
Pigpen with a twist — Part 1100Nov. 25, 2017, 12:27 a.m.
Not-so-Secret Message from Malawi — Part I (RSA)1,092Sept. 16, 2017, 6:13 p.m.
Broadcasting and low exponent — RSA Attack1,095Sept. 16, 2017, 2:52 p.m.
Alice's Birthday Party (Part 2)1,092Sept. 16, 2017, 2:40 p.m.
Alice's Birthday Party (Part 1)1,092Sept. 15, 2017, 9:26 p.m.
ADFGVX — Part 1100April 22, 2017, 11:40 p.m.
ADFGVX — Part 2100April 22, 2017, 2:37 p.m.
Nils away on travel100April 21, 2017, 7:33 p.m.
From Russia with Love100Jan. 28, 2017, 12:25 a.m.
M-138 — Part 21,128Jan. 21, 2017, 8:38 a.m.
M-138 — Part 1100Jan. 14, 2017, 11:07 p.m.
Letter from the Alleged Countess Julie von Ortenburg100Dec. 10, 2016, 12:12 a.m.
Reserve Hand Procedure — Part 1100Dec. 10, 2016, 12:10 a.m.
Snow White and the seven dwarfs100Nov. 20, 2016, 4:03 p.m.
One-Time Pad with Flaws100Nov. 20, 2016, 3:27 p.m.
Monoalphabetic Substitution100Nov. 20, 2016, 2:02 p.m.
Cracking SHA1-Hashed Passwords1,097Nov. 20, 2016, 11:11 a.m.
A modified homophonic cipher with reduced alphabets — Part 2100Nov. 15, 2016, 1:54 p.m.
Modified Caesar Cipher100Nov. 11, 2016, 4:41 p.m.
A modified homophonic cipher with reduced alphabets — Part 1100Nov. 11, 2016, 3:37 p.m.
Number Sequence — Part 4100Nov. 11, 2016, 3:35 p.m.
Number Sequence — Part 3100Nov. 11, 2016, 3:34 p.m.
Caesar Encryption100Oct. 29, 2016, 11:19 a.m.
Original Caesar Cipher100Oct. 29, 2016, 11:04 a.m.
Number Sequence — Part 2100Oct. 25, 2016, 2:58 p.m.
Grille Cipher100Oct. 13, 2016, 1:19 p.m.
Affine Codes / Modulo Arithmetic with N / Extended Euclid100Oct. 11, 2016, 2:47 p.m.
Factorization Cipher — Part 1100Oct. 11, 2016, 2:36 p.m.
A hidden word100Oct. 10, 2016, 4:30 p.m.
Letter to the Templars — Part 31,106Oct. 10, 2016, 4:26 p.m.
Letter to the Templars — Part 2100Oct. 10, 2016, 4:17 p.m.
Letter to the Templars — Part 1100Oct. 10, 2016, 4:11 p.m.
Number Sequence100Oct. 10, 2016, 3:45 p.m.
Beaver Code100Oct. 10, 2016, 3:44 p.m.

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