Account

Name
Derek Hatton
Username
alfred_noble
Joined
Sept. 23, 2019, 8:50 p.m.

Rank
61
Points
33,998
Trophies
Gold0
Silver0
Bronze0

Active Challenges (3)

LevelNameAttemptsDate
Monoalphabetic Substitution5 / 15Feb. 14, 2020, 6:22 p.m.
Modified Caesar Cipher6 / 20Dec. 7, 2019, 4:55 p.m.
Enigma Combinatorics5 / 20Dec. 6, 2019, 2:20 a.m.

Solved Challenges (79)

LevelNamePointsDate
Enigma Part 11,083Nov. 20, 2020, 3:06 a.m.
Summer Job1,122Nov. 14, 2020, 8:15 p.m.
Turing Bombe Enigma I100Nov. 13, 2020, 8:49 p.m.
Hill Cipher with Sudoku Key100Nov. 5, 2020, 2:24 p.m.
Zodiac Cipher100Nov. 3, 2020, 3:01 p.m.
Homophonic Encryption — Part 11,140Nov. 2, 2020, 11:57 p.m.
Homophonic Encryption — Part 21,140Nov. 2, 2020, 11:44 p.m.
Homophonic Encryption — Part 41,140Nov. 2, 2020, 9:47 p.m.
Homophonic Encryption — Part 31,140Nov. 2, 2020, 7:28 p.m.
Polyhomophonic Substitution — Part 1100Nov. 2, 2020, 12:39 a.m.
CMEA 11,083Oct. 29, 2020, 4:22 p.m.
RSA: Two different keys — same ciphertext1,085Oct. 28, 2020, 10:13 p.m.
Find the right route — Part 1200Oct. 28, 2020, 1:45 a.m.
Advent Challenge — Part 41,117Oct. 27, 2020, 12:56 p.m.
Advent Challenge — Part 31,117Oct. 25, 2020, 1:45 p.m.
Advent-Challenge — Part 21,117Oct. 25, 2020, 1:43 a.m.
Lightweight Introduction to Lattices — Part 31,406Aug. 1, 2020, 5:46 p.m.
Lightweight Introduction to Lattices — Part 2103July 31, 2020, 10:25 p.m.
Lightweight Introduction to Lattices — Part 1101July 29, 2020, 6:43 p.m.
Factorization Cipher — Part 21,086July 24, 2020, 3:54 p.m.
M-138 — Part 21,099March 3, 2020, 12:01 a.m.
The LoRa Cipher: Logic Randomness — Part 11,613Feb. 24, 2020, 5:03 p.m.
Strange Message from Thessaloniki100Feb. 23, 2020, 11:37 p.m.
New Year's Greetings — Part 51,107Feb. 18, 2020, 12:58 a.m.
New Year's Greetings — Part 4100Feb. 17, 2020, midnight
New Year's Greetings — Part 3100Feb. 16, 2020, 10:10 p.m.
New Year's Greetings — Part 2100Feb. 16, 2020, 8:23 p.m.
News from Castle Mansfeld100Feb. 16, 2020, 2:21 a.m.
New Year's Greetings — Part 1100Feb. 14, 2020, 10:01 p.m.
From Russia with Love100Feb. 14, 2020, 12:54 a.m.
¿No Hablas Español? No problemo!100Feb. 13, 2020, 10:18 p.m.
The Last Note100Feb. 13, 2020, 7:43 p.m.
A Secret Message from Castle Mansfeld100Feb. 12, 2020, 11:28 p.m.
Letter from the Alleged Countess Julie von Ortenburg100Feb. 12, 2020, 8:54 p.m.
Double Columnar Transposition100Feb. 9, 2020, 2 a.m.
Multilingual Monoalphabetic Substitution100Feb. 2, 2020, 11:16 p.m.
Monoalphabetic Substitution with Nostradamus Flavor1,160Jan. 29, 2020, 11:02 p.m.
The Einstein Enigma1,130Jan. 28, 2020, 10:46 p.m.
Classical Ciphers^3100Jan. 12, 2020, 10:18 p.m.
Enigma Messages100Nov. 25, 2019, 3:07 p.m.
Enigma Messages with Repeated Letters — Part 5100Nov. 24, 2019, 7:44 p.m.
Enigma Messages with Repeated Letters — Part 4100Nov. 24, 2019, 1:35 a.m.
Enigma Messages with Repeated Letters — Part 3100Nov. 23, 2019, 5:48 p.m.
Enigma Messages with Repeated Letters — Part 2100Nov. 23, 2019, 2:45 a.m.
Enigma Messages with Repeated Letters — Part 1100Nov. 23, 2019, 12:52 a.m.
Number Sequence — Part 6100Nov. 19, 2019, 4:31 p.m.
A really long number sequence1,087Nov. 17, 2019, 12:51 a.m.
Pigpen with a twist — Part 1100Nov. 15, 2019, 8:54 p.m.
M-138 — Part 1100Nov. 13, 2019, 12:33 a.m.
Reserve Hand Procedure — Part 1100Nov. 11, 2019, 5:58 p.m.
How do you become a big cryptographer?100Nov. 10, 2019, 4:52 p.m.
Broadcasting and low exponent — RSA Attack1,087Nov. 9, 2019, 4:28 p.m.
Alice's Birthday Party (Part 1)1,085Nov. 9, 2019, 2:35 a.m.
Alice's Birthday Party (Part 2)1,085Nov. 9, 2019, 1:39 a.m.
One-Time Pad with Flaws100Nov. 2, 2019, 12:41 a.m.
Number Sequence — Part 8100Oct. 29, 2019, 12:50 p.m.
Advent-Challenge — Part 1100Oct. 29, 2019, midnight
A modified homophonic cipher with reduced alphabets — Part 2100Oct. 27, 2019, 11:01 p.m.
A modified homophonic cipher with reduced alphabets — Part 1100Oct. 27, 2019, 8:27 p.m.
Grille Cipher100Oct. 25, 2019, 10:35 p.m.
Cracking SHA1-Hashed Passwords1,086Oct. 25, 2019, 8:54 p.m.
Number Sequence — Part 3100Oct. 23, 2019, 3:07 a.m.
A hidden word100Oct. 21, 2019, 12:54 a.m.
Number Sequence — Part 4100Oct. 21, 2019, 12:32 a.m.
Caesar Encryption100Oct. 19, 2019, 4:18 p.m.
Number Sequence — Part 2100Oct. 19, 2019, 3:29 p.m.
Original Caesar Cipher100Oct. 19, 2019, 3:20 p.m.
Number Sequence100Oct. 19, 2019, 2:35 p.m.
Letter to the Templars — Part 31,091Oct. 18, 2019, 9:42 p.m.
Letter to the Templars — Part 2100Oct. 18, 2019, 8:11 p.m.
Letter to the Templars — Part 1100Oct. 18, 2019, 7:58 p.m.
Beaver Code100Oct. 18, 2019, 5:58 p.m.
Unusual encryption using a diophantine equation1,088Oct. 10, 2019, 12:38 a.m.
Recycled One-Time Pad100Oct. 9, 2019, 2:27 p.m.
Factorization Cipher — Part 1100Oct. 5, 2019, 3 p.m.
Affine Codes / Modulo Arithmetic with N / Extended Euclid100Oct. 4, 2019, 4:29 p.m.
Autokey Cipher100Oct. 2, 2019, 3:14 p.m.
Modular Sequences100Sept. 24, 2019, 5:50 p.m.
Number Sequence — Part 10100Sept. 24, 2019, 3:37 p.m.

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