Account

Name
Thomas Gonda
Username
TomG
Joined
Oct. 18, 2010, 7:02 a.m.

Rank
56
Points
36,291
Trophies
Gold1
Silver3
Bronze3

Active Challenges (7)

LevelNameAttemptsDate
Hill Cipher with Sudoku Key1 / 15Sept. 10, 2013, 2:17 p.m.
An 'unhearable' message3 / 15Oct. 16, 2012, 5:13 p.m.
ADFGVX — Part 24 / 99March 7, 2012, 9:31 p.m.
Music Code — Part 19 / 20Oct. 7, 2011, 2:31 p.m.
Unusual encryption using a diophantine equation3 / 20Sept. 16, 2011, 8:14 a.m.
Pigpen with a twist — Part 211 / 15Sept. 12, 2011, 9:38 p.m.
Purple 12 / 25March 22, 2011, 7:06 p.m.

Solved Challenges (70)

LevelNamePointsDate
M-138 — Part 21,113March 22, 2018, 9:32 p.m.
Advent-Challenge — Part 21,236March 19, 2018, 2:50 p.m.
Number Sequence — Part 8100March 16, 2018, 8:35 a.m.
Advent-Challenge — Part 1101March 16, 2018, 8:08 a.m.
¿No Hablas Español? No problemo!100April 14, 2015, 10:12 p.m.
Trifid Cipher100April 14, 2015, 9:29 p.m.
M-138 — Part 1101April 9, 2015, 9:09 p.m.
Number Sequence — Part 5100Sept. 3, 2014, 10:15 p.m.
Nils away on travel100Aug. 30, 2014, 9:52 p.m.
RSA Factoring Challenge: RSA-7040Aug. 30, 2014, 8:44 p.m.
RSA Factoring Challenge: RSA-2100Aug. 30, 2014, 8:39 p.m.
Enigma Messages with Repeated Letters — Part 1100Aug. 29, 2014, 10:36 p.m.
Heartbleed — Part 2200Aug. 28, 2014, 11:11 p.m.
Heartbleed — Part 1 200Aug. 28, 2014, 10:31 p.m.
From Russia with Love100Aug. 28, 2014, 9:33 p.m.
Factorization Cipher — Part 21,133Sept. 12, 2013, 2:36 p.m.
Keyshanc — Part 11,146Sept. 11, 2013, 5:44 p.m.
Pigpen with a twist — Part 1100Sept. 10, 2013, 2:20 p.m.
How do you become a big cryptographer?100Sept. 9, 2013, 5 p.m.
Reserve Hand Procedure — Part 1101Sept. 2, 2013, 4:27 p.m.
A hidden word100Aug. 21, 2013, 10:59 a.m.
Snow White and the seven dwarfs105May 9, 2013, 2:32 p.m.
Letter to the Templars — Part 31,523Oct. 16, 2012, 5:39 p.m.
Letter to the Templars — Part 2101Oct. 16, 2012, 5:20 p.m.
Letter to the Templars — Part 1101Oct. 16, 2012, 5:14 p.m.
Beaver Code102Oct. 16, 2012, 4:42 p.m.
Number Sequence — Part 4113April 26, 2012, 2:35 p.m.
Number Sequence — Part 3108April 12, 2012, 1:03 p.m.
The Book Code: A Challenge for Bookworms133March 23, 2012, 1:28 p.m.
RSA: Two different keys — same ciphertext1,184March 16, 2012, 8:41 p.m.
Partial Key Exposure with RSA — Part 11,362March 5, 2012, 3:41 p.m.
AES key — encoded in the machine readable zone of a European ePassport1,288March 4, 2012, 10:18 p.m.
Factorization Cipher — Part 1200Oct. 18, 2011, 11:45 a.m.
Grille Cipher133Oct. 17, 2011, 1:12 p.m.
Broadcasting and low exponent — RSA Attack1,251Oct. 5, 2011, 9:35 p.m.
Not-so-Secret Message from Malawi — Part I (RSA)1,158Oct. 4, 2011, 9:49 p.m.
A really long number sequence1,502Sept. 14, 2011, 10:37 a.m.
Modified Caesar Cipher109Sept. 12, 2011, 9:51 p.m.
Affine Codes / Modulo Arithmetic with N / Extended Euclid125Sept. 12, 2011, 3:24 p.m.
Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 1101Aug. 9, 2011, 9:41 a.m.
Number Sequence — Part 2103Aug. 9, 2011, 8:47 a.m.
Cracking SHA1-Hashed Passwords1,349May 1, 2011, 5:51 p.m.
Enigma Part 21,202March 20, 2011, 10:11 a.m.
Kaskade-S/T — Part 31,444March 16, 2011, 9:24 p.m.
Playfair Encryption101March 11, 2011, 3:32 p.m.
Classical Ciphers^3101March 10, 2011, 8:46 p.m.
Kaskade-S/T — Part 21,576March 9, 2011, 6:25 p.m.
Kaskade-S/T — Part 1133March 6, 2011, 2:25 p.m.
Enigma Combinatorics101Feb. 23, 2011, 5:47 p.m.
Hybrid Encryption I1,242Jan. 26, 2011, 1:10 p.m.
Lunchtime Attack on the Fully Homomorphic Encryption Scheme1,725Jan. 16, 2011, 7:26 p.m.
ORYX Stream Cipher Part II1,235Jan. 16, 2011, 11:55 a.m.
ORYX Stream Cipher Part I1,236Jan. 14, 2011, 8:39 p.m.
Alice's Birthday Party (Part 2)1,244Jan. 5, 2011, 6:16 p.m.
Alice's Birthday Party (Part 1)1,244Jan. 5, 2011, 6:14 p.m.
Molehunt (Part 3/3)1,279Dec. 16, 2010, 6:02 p.m.
Molehunt (Part 2/3)102Dec. 15, 2010, 10:22 a.m.
Original Caesar Cipher200Dec. 15, 2010, 9:01 a.m.
Molehunt (Part 1/3)102Dec. 14, 2010, 7:44 p.m.
Enigma Part 11,275Dec. 10, 2010, 11:44 a.m.
A Secret Message from Castle Mansfeld102Dec. 8, 2010, 5:52 p.m.
Zodiac Cipher102Dec. 8, 2010, 1:49 p.m.
Caesar Encryption102Dec. 7, 2010, 11:05 p.m.
Brute-Force-Attack on Triple-DES with Reduced Key Space1,278Dec. 7, 2010, 10:34 p.m.
A modified homophonic cipher with reduced alphabets — Part 2102Dec. 5, 2010, 9:41 p.m.
A modified homophonic cipher with reduced alphabets — Part 1102Dec. 5, 2010, 9:09 p.m.
One-Time Pad with Flaws104Dec. 5, 2010, 8:23 p.m.
Letter from the Alleged Countess Julie von Ortenburg125Oct. 18, 2010, 1:10 p.m.
Monoalphabetic Substitution125Oct. 18, 2010, 11:05 a.m.
Number Sequence125Oct. 18, 2010, 9:54 a.m.

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