Account

Name
Klaus
Username
kumaus
Joined
March 8, 2019, 2:39 p.m.

Rank
91
Points
22,017
Trophies
Gold0
Silver0
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Solved Challenges (52)

LevelNamePointsDate
Number Sequence — Part 9100Oct. 17, 2020, 10:16 p.m.
Autokey Cipher100Oct. 17, 2020, 9:38 p.m.
Lightweight Introduction to Lattices — Part 2101Oct. 17, 2020, 6:47 p.m.
Lightweight Introduction to Lattices — Part 1101Oct. 17, 2020, 6:03 p.m.
Cryptanalysis Hacking Puzzles — Part 2100Oct. 16, 2020, 10:32 p.m.
Polyhomophonic Substitution — Part 1100Oct. 16, 2020, 7:24 p.m.
ORYX Stream Cipher — Part 3 (revised)1,096April 16, 2019, 10:28 a.m.
ORYX Stream Cipher Part II1,087April 12, 2019, 5:31 p.m.
ORYX Stream Cipher Part I1,087April 12, 2019, 4:03 p.m.
Playfair Encryption100April 10, 2019, 12:36 p.m.
Unusual encryption using a diophantine equation1,089April 4, 2019, 4:16 p.m.
Hybrid Encryption I1,087April 4, 2019, 3:02 p.m.
Brute-Force-Attack on Triple-DES with Reduced Key Space1,087April 3, 2019, 6:31 p.m.
Modified Caesar Cipher100April 3, 2019, 4:48 p.m.
From Russia with Love100April 3, 2019, 3:56 p.m.
Snow White and the seven dwarfs100April 3, 2019, 2:43 p.m.
A modified homophonic cipher with reduced alphabets — Part 2100April 3, 2019, 1:16 p.m.
A modified homophonic cipher with reduced alphabets — Part 1100April 3, 2019, 12:38 p.m.
Number Sequence — Part 8100April 3, 2019, 11:42 a.m.
One-Time Pad with Flaws100April 2, 2019, 5:54 p.m.
Affine Codes / Modulo Arithmetic with N / Extended Euclid100April 2, 2019, 5:03 p.m.
Partial Key Exposure with RSA — Part 11,091April 2, 2019, 4:31 p.m.
Unconcealed RSA messages1,090April 2, 2019, 1:24 p.m.
Broadcasting and low exponent — RSA Attack1,089April 1, 2019, 4:13 p.m.
Not-so-Secret Message from Malawi — Part I (RSA)1,087April 1, 2019, 2:11 p.m.
RSA: Two different keys — same ciphertext1,089March 29, 2019, 12:57 p.m.
Letter to the Templars — Part 31,093March 29, 2019, 10:37 a.m.
Grille Cipher100March 28, 2019, 12:14 a.m.
Cracking SHA1-Hashed Passwords1,088March 27, 2019, 11:55 p.m.
Original Caesar Cipher100March 27, 2019, 11:50 p.m.
Factorization Cipher — Part 21,090March 27, 2019, 11:41 p.m.
Beaver Code100March 27, 2019, 5:13 p.m.
Number Sequence — Part 4100March 27, 2019, 4:38 p.m.
Number Sequence — Part 3100March 27, 2019, 4:21 p.m.
Number Sequence — Part 2100March 27, 2019, 4:13 p.m.
Caesar Encryption100March 27, 2019, 4:07 p.m.
Letter to the Templars — Part 2100March 26, 2019, 5:28 p.m.
Letter to the Templars — Part 1100March 26, 2019, 5:09 p.m.
Factorization Cipher — Part 1100March 26, 2019, 4:21 p.m.
Factorization Cipher — Part 31,090March 26, 2019, 4:15 p.m.
Alice's Birthday Party (Part 2)1,087March 21, 2019, 12:09 p.m.
Alice's Birthday Party (Part 1)1,087March 20, 2019, 3:14 p.m.
Modular Sequences101March 19, 2019, 4:35 p.m.
Hill Cipher with Sudoku Key100March 19, 2019, 3:36 p.m.
Playfair with hints about the grid100March 14, 2019, 6:49 p.m.
Number Sequence — Part 10100March 14, 2019, 12:05 p.m.
A hidden word100March 14, 2019, 10:50 a.m.
Advent-Challenge — Part 1100March 14, 2019, 9:42 a.m.
Number Sequence100March 13, 2019, 5:28 p.m.
Monoalphabetic Substitution100March 13, 2019, 5:21 p.m.
Classical Ciphers^3100March 13, 2019, 4:36 p.m.
How do you become a big cryptographer?100March 8, 2019, 4:53 p.m.

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