Account

Name
Erik
Username
Erox
Joined
July 9, 2015, 3:15 p.m.

Rank
75
Points
26,141
Trophies
Gold0
Silver1
Bronze1

Active Challenges (1)

LevelNameAttemptsDate
ADFGVX — Part 11 / 99Dec. 27, 2020, 3:38 p.m.

Solved Challenges (68)

LevelNamePointsDate
RSA Factoring Challenge: RSA-2400March 17, 2020, 4:26 p.m.
RSA Factoring Challenge: RSA-2320March 17, 2020, 4:25 p.m.
RSA Factoring Challenge: RSA-7040March 17, 2020, 4:25 p.m.
RSA Factoring Challenge: RSA-2500March 17, 2020, 4:24 p.m.
M-138 — Part 31,102July 28, 2019, 7:22 p.m.
M-138 — Part 21,102July 28, 2019, 4:33 p.m.
M-138 — Part 1100July 28, 2019, 4:28 p.m.
Advent-Challenge — Part 1100July 28, 2019, 12:36 p.m.
Smartcard RSA1,086July 13, 2019, 5:27 p.m.
RSA Factoring Challenge: RSA-2100Nov. 16, 2018, 1:12 p.m.
RSA Factoring Challenge: RSA-2200Nov. 16, 2018, 1:10 p.m.
RSA Factoring Challenge: RSA-2300Nov. 16, 2018, 1:08 p.m.
RSA: Two different keys — same ciphertext1,092May 15, 2018, 2:12 p.m.
Partial Key Exposure with RSA — Part 11,094May 12, 2018, 3:39 p.m.
Number Sequence — Part 8100May 12, 2018, 3:18 p.m.
Enigma Messages with Repeated Letters — Part 4100April 17, 2016, 6:06 p.m.
Enigma Messages with Repeated Letters — Part 5100April 17, 2016, 6:01 p.m.
Enigma Messages with Repeated Letters — Part 2100April 17, 2016, 5:58 p.m.
Enigma Messages with Repeated Letters — Part 3100April 17, 2016, 5:51 p.m.
Enigma Part 21,097April 17, 2016, 4:56 p.m.
Enigma Part 11,097April 16, 2016, 10:12 p.m.
ECDH-Key Exchange for Beginners100Aug. 28, 2015, 1:09 p.m.
Pigpen with a twist — Part 1100Aug. 20, 2015, 6:57 p.m.
Molehunt (Part 3/3)1,101Aug. 4, 2015, 10:01 p.m.
Molehunt (Part 2/3)100Aug. 4, 2015, 9:25 p.m.
Molehunt (Part 1/3)100Aug. 4, 2015, 9:06 p.m.
Enigma Messages with Repeated Letters — Part 1100Aug. 3, 2015, 6:55 p.m.
Recycled One-Time Pad100Aug. 3, 2015, 4:52 p.m.
Hybrid Encryption I1,101Aug. 3, 2015, 12:45 p.m.
Brute-Force-Attack on Triple-DES with Reduced Key Space1,101Aug. 2, 2015, 9:54 p.m.
Classical Ciphers^3100Aug. 2, 2015, 6:41 p.m.
Unusual encryption using a diophantine equation1,107Aug. 1, 2015, 4:19 p.m.
How do you become a big cryptographer?100July 17, 2015, 10:40 p.m.
Letter from the Alleged Countess Julie von Ortenburg100July 17, 2015, 3:45 p.m.
From Russia with Love100July 16, 2015, 10:29 p.m.
Modified Caesar Cipher100July 16, 2015, 6:54 p.m.
Reserve Hand Procedure — Part 1100July 16, 2015, 5:55 p.m.
Not-so-Secret Message from Malawi — Part I (RSA)1,101July 15, 2015, 11:13 p.m.
Broadcasting and low exponent — RSA Attack1,107July 15, 2015, 10:35 p.m.
Alice's Birthday Party (Part 2)1,101July 15, 2015, 10:19 p.m.
Cracking SHA1-Hashed Passwords1,104July 15, 2015, 9:47 p.m.
Alice's Birthday Party (Part 1)1,101July 15, 2015, 7:31 p.m.
Number Sequence — Part 7101July 15, 2015, 5:47 p.m.
Number Sequence — Part 6101July 15, 2015, 5:39 p.m.
A hidden word — Part 2101July 15, 2015, 4:05 p.m.
Number Sequence — Part 5100July 15, 2015, 3:53 p.m.
A really long number sequence1,107July 15, 2015, 3:06 p.m.
Snow White and the seven dwarfs100July 15, 2015, 12:21 a.m.
One-Time Pad with Flaws100July 14, 2015, 11:40 p.m.
Factorization Cipher — Part 31,110July 14, 2015, 12:59 a.m.
Factorization Cipher — Part 21,109July 13, 2015, 5:59 p.m.
Grille Cipher100July 13, 2015, 12:12 a.m.
A modified homophonic cipher with reduced alphabets — Part 2100July 12, 2015, 11:46 p.m.
A modified homophonic cipher with reduced alphabets — Part 1100July 12, 2015, 11:28 p.m.
Factorization Cipher — Part 1100July 12, 2015, 10:32 p.m.
A hidden word100July 12, 2015, 1:30 p.m.
Affine Codes / Modulo Arithmetic with N / Extended Euclid100July 12, 2015, 1:21 p.m.
Monoalphabetic Substitution100July 12, 2015, 12:52 p.m.
Letter to the Templars — Part 31,118July 11, 2015, 7:10 p.m.
Letter to the Templars — Part 2100July 11, 2015, 6:40 p.m.
Letter to the Templars — Part 1100July 11, 2015, 6:29 p.m.
Number Sequence — Part 4100July 11, 2015, 12:18 a.m.
Number Sequence — Part 3100July 10, 2015, 5:14 p.m.
Beaver Code100July 10, 2015, 5:11 p.m.
Caesar Encryption100July 9, 2015, 11:51 p.m.
Number Sequence — Part 2100July 9, 2015, 6:04 p.m.
Original Caesar Cipher100July 9, 2015, 5:55 p.m.
Number Sequence100July 9, 2015, 5:20 p.m.

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