Account

Name
E.T
Username
Ertheb
Joined
Feb. 15, 2012, 4:16 p.m.

Rank
22
Points
81,809
Trophies
Gold1
Silver2
Bronze1

Active Challenges (3)

LevelNameAttemptsDate
ASAC — A Strong(er) ADFGVX Cipher — Part 11 / 15July 23, 2016, 8:46 a.m.
Heartbleed — Part 31 / 50Sept. 4, 2014, 6:48 p.m.
Spanish Strip Cipher — Part 12 / 15March 27, 2014, 10:48 p.m.

Solved Challenges (134)

LevelNamePointsDate
Monoalphabetic substitution with camouflage — Part 21,089June 24, 2019, 11:10 p.m.
Handycipher made in love — Part 21,324June 23, 2019, 5:55 p.m.
Handycipher made in love — Part 11,216June 19, 2019, 5:29 p.m.
Homophonic Encryption — Part 41,613May 13, 2019, 7:52 p.m.
Homophonic Encryption — Part 31,613May 13, 2019, 7:39 p.m.
Homophonic Encryption — Part 21,613May 13, 2019, 7:28 p.m.
Homophonic Encryption — Part 11,824May 6, 2019, 2:05 p.m.
Monoalphabetic Substitution with Nostradamus Flavor1,261April 23, 2019, 5:55 p.m.
Cryptanalysis Hacking Puzzles — Part 2107Jan. 22, 2019, 9:08 p.m.
Modular Sequences102Nov. 19, 2018, 9:26 p.m.
Cryptanalysis Hacking Puzzles — Part 1150Oct. 28, 2018, 6:58 p.m.
Breaking a Filter Generator1,385Oct. 15, 2018, 1:04 p.m.
Autokey Cipher125Sept. 28, 2018, 4:50 p.m.
Trendy Messenger1,456June 23, 2018, 2:51 p.m.
Fastest in the West1,576June 17, 2018, 10:53 p.m.
Summer Job2,000June 12, 2018, 9:48 p.m.
Number Sequence — Part 10117April 23, 2018, 5:22 p.m.
Unconcealed RSA messages1,094March 12, 2018, 12:50 p.m.
Unusual encryption using a diophantine equation1,093Feb. 18, 2018, 9:08 p.m.
The Einstein Enigma1,660Feb. 11, 2018, 5:34 p.m.
Advent Challenge — Part 41,423Jan. 4, 2018, 6:37 p.m.
Advent Challenge — Part 31,456Jan. 3, 2018, 5:42 p.m.
Advent-Challenge — Part 21,406Jan. 2, 2018, 6:16 p.m.
Advent-Challenge — Part 1114Dec. 15, 2017, 4:27 p.m.
Number Sequence — Part 9120Nov. 21, 2017, 12:55 p.m.
New Year's Greetings — Part 51,212Aug. 1, 2016, 6:43 a.m.
New Year's Greetings — Part 4101July 21, 2016, 6:12 p.m.
New Year's Greetings — Part 3101July 21, 2016, 5:38 p.m.
New Year's Greetings — Part 2101July 21, 2016, 1:13 p.m.
New Year's Greetings — Part 1101July 21, 2016, 12:57 p.m.
Monoalphabetic substitution with camouflage — Part 31,105March 12, 2016, 9:56 p.m.
Enigma Combinatorics100March 6, 2016, 2:07 p.m.
Double Column Transposition — Part 41,137Jan. 5, 2016, 9:36 p.m.
Image Noise150Nov. 22, 2015, 9:56 a.m.
Weakened Granit — Part 1110Oct. 3, 2015, 8:13 p.m.
Number Sequence — Part 8200Sept. 14, 2015, 7 p.m.
Monoalphabetic substitution with camouflage — Part 4100Sept. 11, 2015, 4:29 p.m.
Monoalphabetic substitution with camouflage — Part 1100July 19, 2015, 5:04 a.m.
ORYX Stream Cipher — Part 3 (revised)1,127July 14, 2015, 12:08 p.m.
ORYX Stream Cipher Part II1,102June 23, 2015, 9:07 p.m.
ORYX Stream Cipher Part I1,102June 23, 2015, 7:14 p.m.
Number Sequence — Part 7102May 8, 2015, 3:35 p.m.
A hidden word — Part 2200April 16, 2015, 9:27 p.m.
M-138 — Part 41,228April 6, 2015, 9:11 a.m.
Number Sequence — Part 6200March 23, 2015, 8:05 p.m.
M-138 — Part 31,406Jan. 9, 2015, 4:57 p.m.
M-138 — Part 21,725Dec. 26, 2014, 9:27 p.m.
M-138 — Part 1133Dec. 26, 2014, 6:05 p.m.
The Last Note150Sept. 24, 2014, 1:02 p.m.
Heartbleed — Part 2113Sept. 4, 2014, 8:06 p.m.
Heartbleed — Part 1 117Sept. 2, 2014, 6:42 p.m.
Double Column Transposition — Part 21,290June 18, 2014, 11:03 p.m.
Spanish Strip Cipher — Part 21,725March 29, 2014, 8:08 p.m.
Ku Klux Klan1,000March 10, 2014, 8:57 a.m.
Enigma Messages with Repeated Letters — Part 4150March 6, 2014, 10:29 p.m.
Enigma Messages with Repeated Letters — Part 5200March 5, 2014, 10:07 p.m.
Enigma Messages with Repeated Letters — Part 3200March 5, 2014, 9:21 p.m.
Typex — Part 21,175Dec. 12, 2013, 7:08 p.m.
Typex — Part 11,170Dec. 3, 2013, 6:37 p.m.
Enigma Messages with Repeated Letters — Part 2114Nov. 4, 2013, 6:07 p.m.
Trifid Cipher200Oct. 29, 2013, 5:44 p.m.
Enigma Messages with Repeated Letters — Part 1200Sept. 26, 2013, 10:25 p.m.
Hill Cipher with Sudoku Key200Sept. 5, 2013, 12:53 p.m.
From Russia with Love200Sept. 4, 2013, 6:39 p.m.
Letter from the Alleged Countess Julie von Ortenburg100Sept. 3, 2013, 6:15 p.m.
Keyshanc — Part 21,149Aug. 9, 2013, 11:42 p.m.
Nils away on travel200Aug. 9, 2013, 12:15 p.m.
Keyshanc — Part 11,149Aug. 7, 2013, 11:46 p.m.
Pigpen with a twist — Part 31,131July 30, 2013, 10:29 p.m.
Pigpen with a twist — Part 21,131July 30, 2013, 9:02 p.m.
Kaskade-S/T — Part 31,124July 5, 2013, 8:58 p.m.
Kaskade-S/T — Part 21,124July 3, 2013, 1:14 p.m.
Turing Bombe Enigma I100June 25, 2013, 10:42 p.m.
Double Columnar Transposition100June 15, 2013, 6:54 a.m.
Monoalphabetic Substitution100June 13, 2013, 11:26 a.m.
Kaskade-S/T — Part 1100May 24, 2013, 8:59 p.m.
Enigma Part 21,120May 23, 2013, 9:04 p.m.
ADFGVX — Part 2100May 22, 2013, 8:54 p.m.
ADFGVX — Part 1100May 15, 2013, 10:24 p.m.
Snow White and the seven dwarfs133April 22, 2013, 10:01 p.m.
Molehunt (Part 3/3)1,122April 11, 2013, 6:05 p.m.
Molehunt (Part 2/3)100April 4, 2013, 1 p.m.
Reserve Hand Procedure — Part 1150March 8, 2013, 5:46 p.m.
Multilingual Monoalphabetic Substitution200Jan. 30, 2013, 5:43 p.m.
Molehunt (Part 1/3)100Jan. 30, 2013, 1:04 p.m.
Cascading Encryption — Part 1/3200Jan. 26, 2013, 1:32 p.m.
Enigma Messages200Jan. 23, 2013, 8:02 p.m.
Playfair with hints about the grid200Jan. 17, 2013, 8:50 a.m.
A hidden word150Jan. 7, 2013, 5:54 p.m.
Enigma Part 11,127Dec. 5, 2012, 9:31 p.m.
Recycled One-Time Pad108Dec. 2, 2012, 11:57 a.m.
Brute-Force-Attack on Triple-DES with Reduced Key Space1,128Nov. 12, 2012, 7:17 p.m.
Factorization Cipher — Part 31,165Nov. 8, 2012, 10:33 p.m.
AES key — encoded in the machine readable zone of a European ePassport1,168Nov. 1, 2012, 10:09 p.m.
Hybrid Encryption I1,129Oct. 30, 2012, 8 p.m.
Not-so-Secret Message from Malawi — Part I (RSA)1,128Oct. 29, 2012, 6:45 p.m.
RSA: Two different keys — same ciphertext1,149Oct. 27, 2012, 5:23 p.m.
Broadcasting and low exponent — RSA Attack1,147Oct. 26, 2012, 10:30 p.m.
Alice's Birthday Party (Part 2)1,128Oct. 25, 2012, 8:53 p.m.
Alice's Birthday Party (Part 1)1,128Oct. 25, 2012, 7:03 p.m.
BCR code (Book-Caesar-RSA)1,310Oct. 20, 2012, 11:12 p.m.
Letter to the Templars — Part 31,660Oct. 13, 2012, 8:59 a.m.
Concealed Messages — Vigenère's Night Sky1,199Oct. 12, 2012, 10:20 p.m.
One-Time Pad with Flaws100Oct. 1, 2012, 10:21 p.m.
Pigpen with a twist — Part 1100Sept. 30, 2012, 12:38 p.m.
Playfair Encryption100Sept. 27, 2012, 7:44 p.m.
An 'unhearable' message101Sept. 27, 2012, 5:51 p.m.
How do you become a big cryptographer?101Sept. 24, 2012, 1:22 p.m.
A really long number sequence1,157Sept. 5, 2012, 5:34 p.m.
Number Sequence — Part 5101Sept. 1, 2012, 12:32 p.m.
A modified homophonic cipher with reduced alphabets — Part 2100Aug. 27, 2012, 12:34 p.m.
A modified homophonic cipher with reduced alphabets — Part 1100Aug. 27, 2012, 8:22 a.m.
Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 1100Aug. 25, 2012, 9:08 a.m.
Beaver Code200Aug. 13, 2012, 11:17 p.m.
Classical Ciphers^3100Aug. 4, 2012, 2:26 p.m.
Letter to the Templars — Part 2200July 31, 2012, 1:13 p.m.
Zodiac Cipher100July 31, 2012, 1:04 p.m.
An Invisible Message100July 23, 2012, 6:22 p.m.
Letter to the Templars — Part 1150July 18, 2012, 6:12 p.m.
ECDH-Key Exchange for Beginners101May 24, 2012, 1:27 p.m.
Number Sequence — Part 4114April 24, 2012, 8:50 p.m.
¿No Hablas Español? No problemo!125April 22, 2012, 6:33 p.m.
The Book Code: A Challenge for Bookworms104April 12, 2012, 6:31 p.m.
Grille Cipher101April 6, 2012, 10:47 p.m.
Number Sequence — Part 3117April 5, 2012, 5:46 p.m.
Cracking SHA1-Hashed Passwords1,158March 26, 2012, 12:51 p.m.
Modified Caesar Cipher101March 8, 2012, 9:03 p.m.
Factorization Cipher — Part 21,235March 5, 2012, 12:56 p.m.
Caesar Encryption100Feb. 16, 2012, 5:11 p.m.
Affine Codes / Modulo Arithmetic with N / Extended Euclid101Feb. 16, 2012, 4:09 p.m.
Original Caesar Cipher100Feb. 15, 2012, 10:31 p.m.
Factorization Cipher — Part 1101Feb. 15, 2012, 7:14 p.m.
Number Sequence — Part 2100Feb. 15, 2012, 6:48 p.m.
Number Sequence100Feb. 15, 2012, 6:31 p.m.

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