Account

Name
Gerd Wilts
Username
gerdw
Joined
July 6, 2019, 6:35 p.m.

Rank
39
Points
50,634
Trophies
Gold0
Silver0
Bronze0

Active Challenges (1)

LevelNameAttemptsDate
Pigpen with a twist — Part 21 / 15June 29, 2021, 9:27 p.m.

Solved Challenges (90)

LevelNamePointsDate
Pigpen with a twist — Part 1100June 26, 2021, 5:19 p.m.
Kaskade-S/T — Part 31,083Feb. 26, 2021, 7:15 a.m.
Kaskade-S/T — Part 21,083Feb. 22, 2021, 2:55 p.m.
Kaskade-S/T — Part 1100Feb. 20, 2021, 6:19 p.m.
AES key — encoded in the machine readable zone of a European ePassport1,085Feb. 20, 2021, 12:59 p.m.
Zodiac Cipher100Feb. 18, 2021, 11:50 p.m.
CMEA 11,082Feb. 18, 2021, 6:32 p.m.
BCR code (Book-Caesar-RSA)1,087Feb. 15, 2021, 11:39 p.m.
RSA Factoring Challenge: RSA-2320Feb. 15, 2021, 8:33 p.m.
RSA Factoring Challenge: RSA-2500Feb. 15, 2021, 8:32 p.m.
RSA Factoring Challenge: RSA-2400Feb. 15, 2021, 8:30 p.m.
Unconcealed RSA messages1,084Feb. 15, 2021, 7:19 p.m.
Smartcard RSA1,082Feb. 14, 2021, 5:52 p.m.
RSA Factoring Challenge: RSA-2300Feb. 11, 2021, 10:53 p.m.
RSA Factoring Challenge: RSA-2200Feb. 11, 2021, 10:52 p.m.
RSA Factoring Challenge: RSA-2100Feb. 11, 2021, 10:50 p.m.
RSA Factoring Challenge: RSA-7040Feb. 11, 2021, 10:48 p.m.
Partial Key Exposure with RSA — Part 11,085Feb. 10, 2021, 10:52 p.m.
Enigma Part 21,082Feb. 9, 2021, 10:12 p.m.
Enigma Part 11,082Feb. 8, 2021, 10:04 p.m.
Lightweight Introduction to Lattices — Part 31,186Feb. 7, 2021, 11:05 p.m.
Lightweight Introduction to Lattices — Part 2100Feb. 7, 2021, 10:23 p.m.
Lightweight Introduction to Lattices — Part 1100Feb. 7, 2021, 8:07 p.m.
Double Column Transposition — Part 31,096March 5, 2020, 11:54 p.m.
Double Column Transposition — Part 21,096March 5, 2020, 11:36 p.m.
Double Column Transposition — Part 11,096March 5, 2020, 7:19 a.m.
ORYX Stream Cipher Part II1,084Feb. 22, 2020, 9:25 a.m.
ORYX Stream Cipher Part I1,084Feb. 22, 2020, 8:24 a.m.
Hybrid Encryption I1,084Feb. 16, 2020, 10:01 p.m.
Brute-Force-Attack on Triple-DES with Reduced Key Space1,084Feb. 16, 2020, 5:58 p.m.
Lunchtime Attack on the Fully Homomorphic Encryption Scheme1,086Oct. 13, 2019, 10:29 a.m.
A really long number sequence1,088Oct. 12, 2019, 9:24 p.m.
Monoalphabetic Substitution with Camouflage — Part 51,090July 29, 2019, 9:43 p.m.
Monoalphabetic substitution with camouflage — Part 4100July 29, 2019, 9:23 p.m.
Monoalphabetic substitution with camouflage — Part 31,089July 29, 2019, 7:10 p.m.
Monoalphabetic substitution with camouflage — Part 21,089July 28, 2019, 11:13 p.m.
Monoalphabetic substitution with camouflage — Part 1100July 28, 2019, 8:28 a.m.
Homophonic Encryption — Part 21,246July 27, 2019, 11:58 p.m.
Homophonic Encryption — Part 41,246July 27, 2019, 10:50 p.m.
Homophonic Encryption — Part 31,246July 27, 2019, 10:34 p.m.
Homophonic Encryption — Part 11,243July 27, 2019, 8:56 p.m.
M-138 — Part 31,102July 27, 2019, 12:45 p.m.
Unusual encryption using a diophantine equation1,088July 24, 2019, 10:41 p.m.
Molehunt (Part 3/3)1,086July 23, 2019, 8:56 p.m.
Number Sequence — Part 7100July 21, 2019, 10:16 a.m.
Number Sequence — Part 9100July 21, 2019, 10:03 a.m.
Molehunt (Part 2/3)100July 20, 2019, 10:43 p.m.
Molehunt (Part 1/3)100July 20, 2019, 5:16 p.m.
M-138 — Part 21,103July 16, 2019, 2:28 p.m.
M-138 — Part 1100July 16, 2019, 12:17 p.m.
RSA: Two different keys — same ciphertext1,088July 16, 2019, 9:02 a.m.
The Einstein Enigma1,142July 16, 2019, 7:43 a.m.
Factorization Cipher — Part 31,089July 15, 2019, 10:42 p.m.
Factorization Cipher — Part 21,089July 15, 2019, 7:49 p.m.
Number Sequence — Part 5100July 14, 2019, 9:46 p.m.
Summer Job1,153July 14, 2019, 5:26 p.m.
Not-so-Secret Message from Malawi — Part I (RSA)1,086July 13, 2019, 9:27 a.m.
Nils away on travel100July 12, 2019, 10:55 p.m.
Broadcasting and low exponent — RSA Attack1,088July 12, 2019, 9 p.m.
Alice's Birthday Party (Part 2)1,086July 12, 2019, 8:48 p.m.
Alice's Birthday Party (Part 1)1,086July 12, 2019, 5:36 p.m.
¿No Hablas Español? No problemo!100July 12, 2019, 12:05 a.m.
From Russia with Love100July 11, 2019, 10:17 p.m.
Modified Caesar Cipher100July 11, 2019, 9:53 p.m.
Snow White and the seven dwarfs100July 11, 2019, 6:49 p.m.
Advent-Challenge — Part 1100July 11, 2019, 6:06 p.m.
A modified homophonic cipher with reduced alphabets — Part 2100July 11, 2019, 5:59 p.m.
A modified homophonic cipher with reduced alphabets — Part 1100July 11, 2019, 5:17 p.m.
Number Sequence — Part 3100July 11, 2019, 4:19 p.m.
Number Sequence — Part 8100July 10, 2019, 10:54 p.m.
How do you become a big cryptographer?100July 10, 2019, 10:36 p.m.
Number Sequence — Part 10100July 10, 2019, 10:07 p.m.
Affine Codes / Modulo Arithmetic with N / Extended Euclid100July 8, 2019, 11:53 p.m.
One-Time Pad with Flaws100July 8, 2019, 11:27 p.m.
Number Sequence — Part 4100July 8, 2019, 10:55 p.m.
Grille Cipher100July 8, 2019, 5:07 p.m.
Cracking SHA1-Hashed Passwords1,087July 7, 2019, 9:15 p.m.
Factorization Cipher — Part 1100July 7, 2019, 9:11 p.m.
Monoalphabetic Substitution100July 7, 2019, 8:41 p.m.
Letter to the Templars — Part 31,092July 7, 2019, 5:43 p.m.
Letter to the Templars — Part 2100July 7, 2019, 4:55 p.m.
Letter to the Templars — Part 1100July 7, 2019, 10:48 a.m.
Beaver Code100July 7, 2019, 10:08 a.m.
A hidden word100July 7, 2019, 9:51 a.m.
Number Sequence — Part 2100July 7, 2019, 9:19 a.m.
Number Sequence100July 7, 2019, 8:18 a.m.
Original Caesar Cipher100July 6, 2019, 11:02 p.m.
Caesar Encryption100July 6, 2019, 11 p.m.
Autokey Cipher100July 6, 2019, 10:40 p.m.
Cryptanalysis Hacking Puzzles — Part 2101July 6, 2019, 10:08 p.m.

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