Account

Name
Norbert Biermann
Username
Norbert
Joined
Jan. 12, 2016, 8:41 a.m.

Rank
41
Points
47,790
Trophies
Gold1
Silver1
Bronze0

Solved Challenges (104)

LevelNamePointsDate
Wheatstone Cryptograph — Part 1103May 26, 2021, 5:34 p.m.
Polyhomophonic Substitution — Part 31,284May 27, 2020, 3:29 p.m.
Polyhomophonic Substitution — Part 21,270May 26, 2020, 7:48 p.m.
Polyhomophonic Substitution — Part 1102May 24, 2020, 6:25 p.m.
Number Sequence — Part 10100May 18, 2019, 10:10 p.m.
Number Sequence — Part 9100May 18, 2019, 9:53 p.m.
Number Sequence — Part 6100May 18, 2019, 9:48 p.m.
Modular Sequences100May 18, 2019, 8:34 p.m.
Autokey Cipher100May 17, 2019, 4:43 p.m.
Cryptanalysis Hacking Puzzles — Part 2101May 17, 2019, 4:29 p.m.
The Vatican Challenge — Part 22,000March 20, 2018, 3:45 p.m.
The Vatican Challenge — Part 11,000March 20, 2018, 2:59 p.m.
Advent-Challenge — Part 1101March 20, 2018, 12:48 p.m.
The Einstein Enigma1,305March 20, 2018, 11:27 a.m.
Number Sequence — Part 5100Dec. 16, 2016, 5:46 p.m.
Kaskade-S/T — Part 21,097Sept. 23, 2016, 2:02 p.m.
Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 1100Sept. 21, 2016, 9:29 p.m.
ADFGVX — Part 1100Sept. 21, 2016, 1:15 p.m.
Kaskade-S/T — Part 1100Sept. 20, 2016, 9:50 p.m.
Smartcard RSA1,096Sept. 20, 2016, 8:09 a.m.
The Book Code: A Challenge for Bookworms100Sept. 18, 2016, 10:27 p.m.
Snow White and the seven dwarfs100Sept. 18, 2016, 7:22 p.m.
Number Sequence — Part 7100Sept. 18, 2016, 6:57 p.m.
A really long number sequence1,100Sept. 17, 2016, 5:53 p.m.
Molehunt (Part 3/3)1,096Sept. 16, 2016, 3:42 p.m.
Molehunt (Part 2/3)100Sept. 16, 2016, 3:41 p.m.
Molehunt (Part 1/3)100Sept. 16, 2016, 3:41 p.m.
¿No Hablas Español? No problemo!100Sept. 15, 2016, 9:27 p.m.
Multilingual Monoalphabetic Substitution100Sept. 15, 2016, 3:36 p.m.
Pigpen with a twist — Part 31,100Sept. 14, 2016, 10:23 p.m.
Pigpen with a twist — Part 21,100Sept. 14, 2016, 10:22 p.m.
Ku Klux Klan1,000Sept. 10, 2016, 11:08 p.m.
Monoalphabetic Substitution with Camouflage — Part 51,103Sept. 9, 2016, 1:10 p.m.
Monoalphabetic substitution with camouflage — Part 4100Sept. 6, 2016, 10:48 a.m.
Monoalphabetic substitution with camouflage — Part 31,101Sept. 5, 2016, 9:03 p.m.
Monoalphabetic substitution with camouflage — Part 21,101Sept. 5, 2016, 5:12 p.m.
Monoalphabetic substitution with camouflage — Part 1100Sept. 5, 2016, 9:22 a.m.
M-138 — Part 41,135Aug. 30, 2016, 8:44 p.m.
Turing Bombe Enigma I100Aug. 27, 2016, 10:39 p.m.
Enigma Combinatorics100Aug. 27, 2016, 7:22 p.m.
Enigma Part 21,096Aug. 23, 2016, 8:39 p.m.
Enigma Part 11,096Aug. 23, 2016, 6:47 p.m.
Enigma Messages with Repeated Letters — Part 4100Aug. 22, 2016, 4:19 p.m.
Enigma Messages with Repeated Letters — Part 3100Aug. 22, 2016, 3:19 p.m.
Enigma Messages with Repeated Letters — Part 5100Aug. 22, 2016, 3:11 p.m.
Enigma Messages with Repeated Letters — Part 2100Aug. 22, 2016, 2:14 p.m.
Enigma Messages with Repeated Letters — Part 1100Aug. 22, 2016, 8:51 a.m.
Unconcealed RSA messages1,101Aug. 10, 2016, 10:42 p.m.
Brute-Force-Attack on Triple-DES with Reduced Key Space1,096Aug. 1, 2016, 8:50 p.m.
Playfair with hints about the grid100Aug. 1, 2016, 5:46 p.m.
Hybrid Encryption I1,096Aug. 1, 2016, 3:19 p.m.
Trifid Cipher100July 31, 2016, 10:47 p.m.
M-138 — Part 31,137July 31, 2016, 3:53 p.m.
M-138 — Part 21,137July 31, 2016, 3:51 p.m.
Not-so-Secret Message from Malawi — Part I (RSA)1,096July 31, 2016, 11:23 a.m.
Number Sequence — Part 8100July 30, 2016, 2:51 p.m.
Classical Ciphers^3100July 28, 2016, 8:55 a.m.
M-138 — Part 1100July 20, 2016, 11:32 p.m.
The Last Note100July 19, 2016, 9:40 p.m.
Cracking SHA1-Hashed Passwords1,098July 19, 2016, 7:18 a.m.
Music Code — Part 21,099July 17, 2016, 10:45 p.m.
Music Code — Part 1100July 17, 2016, 10:43 p.m.
ADFGVX — Part 2100July 16, 2016, 7:31 p.m.
Enigma Messages100July 16, 2016, 4:50 p.m.
Nils away on travel100July 16, 2016, 4:32 p.m.
News from Castle Mansfeld100July 15, 2016, 10:36 p.m.
A Secret Message from Castle Mansfeld100July 15, 2016, 10:35 p.m.
Double Column Transposition — Part 41,126July 15, 2016, 9:05 p.m.
A hidden word — Part 2100July 15, 2016, 5:09 p.m.
Double Columnar Transposition100July 15, 2016, 4:55 p.m.
Concealed Messages — Vigenère's Night Sky1,105July 15, 2016, 12:39 p.m.
Playfair Encryption100July 12, 2016, 10:45 a.m.
Factorization Cipher — Part 31,103July 12, 2016, 10:34 a.m.
How do you become a big cryptographer?100July 11, 2016, 8:24 a.m.
Pigpen with a twist — Part 1100July 10, 2016, 9:27 p.m.
Partial Key Exposure with RSA — Part 11,104July 10, 2016, 8:28 p.m.
Factorization Cipher — Part 21,102July 10, 2016, 6:50 p.m.
Modified Caesar Cipher100July 8, 2016, 4:35 p.m.
Reserve Hand Procedure — Part 1100July 8, 2016, 3:54 p.m.
From Russia with Love100July 7, 2016, 10:39 p.m.
One-Time Pad with Flaws100July 7, 2016, 7:54 p.m.
A modified homophonic cipher with reduced alphabets — Part 2100July 7, 2016, 4:58 p.m.
A modified homophonic cipher with reduced alphabets — Part 1100July 7, 2016, 8:22 a.m.
Grille Cipher100July 7, 2016, 8:14 a.m.
Factorization Cipher — Part 1100July 6, 2016, 8:17 p.m.
Affine Codes / Modulo Arithmetic with N / Extended Euclid100July 6, 2016, 8:06 p.m.
A hidden word100July 6, 2016, 8:02 p.m.
Monoalphabetic Substitution100July 6, 2016, 7:57 p.m.
Number Sequence — Part 4100July 6, 2016, 7:03 p.m.
Number Sequence — Part 3100July 6, 2016, 6:04 p.m.
Beaver Code100July 6, 2016, 5:08 p.m.
RSA: Two different keys — same ciphertext1,101July 6, 2016, 4:57 p.m.
Caesar Encryption100July 6, 2016, 10:11 a.m.
Broadcasting and low exponent — RSA Attack1,100July 6, 2016, 8:58 a.m.
Number Sequence — Part 2100July 6, 2016, 8:13 a.m.
Letter to the Templars — Part 2100July 6, 2016, 7:54 a.m.
Original Caesar Cipher100July 6, 2016, 7:51 a.m.
Letter to the Templars — Part 1100July 6, 2016, 7:46 a.m.
Letter to the Templars — Part 31,108July 6, 2016, 7:42 a.m.
Alice's Birthday Party (Part 2)1,096July 5, 2016, 10:32 p.m.
Alice's Birthday Party (Part 1)1,096July 5, 2016, 7:30 p.m.
Letter from the Alleged Countess Julie von Ortenburg100Jan. 18, 2016, 9:12 p.m.
Image Noise102Jan. 12, 2016, 10:20 a.m.
Number Sequence100Jan. 12, 2016, 10:11 a.m.

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