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Name

Hank

Username

hanky

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July 27, 2011, 10:08 a.m.

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24,373

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Active Challenges (2)

Level	Name	Attempts	Date
	Number Sequence — Part 5	10 / 15	Oct. 26, 2012, 7:52 p.m.
	A Secret Message from Castle Mansfeld	2 / 15	Sept. 11, 2012, 9:04 p.m.

Solved Challenges (58)

Name	Points	Date
Advent-Challenge — Part 2	1,114	Feb. 3, 2021, 3:20 p.m.
Advent-Challenge — Part 1	100	Feb. 2, 2021, 9:24 p.m.
Autokey Cipher	100	Feb. 2, 2021, 6:23 p.m.
Cryptanalysis Hacking Puzzles — Part 2	100	Feb. 2, 2021, 4:47 p.m.
Number Sequence — Part 10	100	Nov. 7, 2019, 1:11 a.m.
RSA Factoring Challenge: RSA-210	0	Nov. 6, 2019, 10:56 p.m.
Image Noise	100	July 27, 2016, 11:49 p.m.
Number Sequence — Part 7	100	May 12, 2016, 12:13 a.m.
Number Sequence — Part 8	103	Oct. 21, 2015, 7:52 p.m.
M-138 — Part 2	1,279	Feb. 15, 2015, 9:03 a.m.
M-138 — Part 1	102	Feb. 13, 2015, 6:49 a.m.
Heartbleed — Part 3	1,200	Feb. 5, 2015, 3:10 a.m.
One-Time Pad with Flaws	100	Jan. 26, 2015, 3:08 a.m.
Heartbleed — Part 2	101	Jan. 25, 2015, 9:25 p.m.
Partial Key Exposure with RSA — Part 1	1,116	Jan. 25, 2015, 7:07 p.m.
Heartbleed — Part 1	101	Jan. 24, 2015, 3:22 p.m.
Enigma Messages with Repeated Letters — Part 1	105	Oct. 15, 2013, 10:26 a.m.
BCR code (Book-Caesar-RSA)	1,153	Oct. 14, 2013, 7:58 p.m.
A really long number sequence	1,128	Oct. 7, 2013, 8:29 p.m.
Hybrid Encryption I	1,116	Oct. 6, 2013, 3:47 p.m.
Enigma Part 1	1,116	Oct. 3, 2013, 3:39 p.m.
Enigma Combinatorics	100	Oct. 3, 2013, 3:05 p.m.
Enigma Messages	100	Oct. 1, 2013, 12:05 a.m.
Brute-Force-Attack on Triple-DES with Reduced Key Space	1,116	Sept. 26, 2013, 12:42 a.m.
Nils away on travel	102	Sept. 23, 2013, 8:18 p.m.
Reserve Hand Procedure — Part 1	100	Sept. 23, 2013, 7:46 p.m.
From Russia with Love	105	Sept. 23, 2013, 5:45 p.m.
Snow White and the seven dwarfs	103	May 20, 2013, 2:31 a.m.
A hidden word	108	Jan. 17, 2013, 5:37 p.m.
Cracking SHA1-Hashed Passwords	1,138	Oct. 26, 2012, 7:34 p.m.
Unusual encryption using a diophantine equation	1,152	Oct. 21, 2012, 6:14 a.m.
RSA: Two different keys — same ciphertext	1,150	Oct. 18, 2012, 7:11 p.m.
Letter to the Templars — Part 3	2,000	Oct. 9, 2012, 7:32 p.m.
Factorization Cipher — Part 1	100	Sept. 30, 2012, 6:27 p.m.
Not-so-Secret Message from Malawi — Part I (RSA)	1,130	Sept. 29, 2012, 10:07 p.m.
Broadcasting and low exponent — RSA Attack	1,150	Sept. 25, 2012, 10:42 p.m.
Alice's Birthday Party (Part 2)	1,130	Sept. 25, 2012, 9:55 p.m.
Alice's Birthday Party (Part 1)	1,130	Sept. 24, 2012, 7:43 p.m.
Molehunt (Part 1/3)	100	Sept. 13, 2012, 8 p.m.
Monoalphabetic Substitution	100	Sept. 11, 2012, 10:12 p.m.
¿No Hablas Español? No problemo!	101	Sept. 10, 2012, 10:24 p.m.
A modified homophonic cipher with reduced alphabets — Part 2	100	Sept. 9, 2012, 7:15 p.m.
A modified homophonic cipher with reduced alphabets — Part 1	100	Sept. 9, 2012, 5:03 p.m.
Grille Cipher	100	Sept. 9, 2012, 4:34 a.m.
The Book Code: A Challenge for Bookworms	101	Sept. 9, 2012, 2:27 a.m.
How do you become a big cryptographer?	101	Sept. 9, 2012, 12:45 a.m.
Modified Caesar Cipher	100	Aug. 26, 2012, 10:03 p.m.
Affine Codes / Modulo Arithmetic with N / Extended Euclid	100	Aug. 26, 2012, 8:17 p.m.
Number Sequence — Part 3	101	Aug. 26, 2012, 5:36 p.m.
Number Sequence — Part 4	101	Aug. 26, 2012, 5:09 p.m.
Beaver Code	108	Aug. 26, 2012, 4:36 p.m.
Letter to the Templars — Part 2	104	Aug. 26, 2012, 3:53 p.m.
Letter to the Templars — Part 1	102	Aug. 26, 2012, 2:33 a.m.
Number Sequence — Part 2	106	July 27, 2011, 3:47 p.m.
Number Sequence	100	July 27, 2011, 3:14 p.m.
Classical Ciphers^3	100	July 27, 2011, 2:48 p.m.
Original Caesar Cipher	100	July 27, 2011, 2:11 p.m.
Caesar Encryption	100	July 27, 2011, 2:08 p.m.