Account

Name
Robert
Username
rm
Joined
July 31, 2014, 7:13 p.m.

Rank
32
Points
56,475
Trophies
Gold1
Silver5
Bronze1

Active Challenges (1)

LevelNameAttemptsDate
Heartbleed — Part 31 / 50Aug. 29, 2014, 4:21 a.m.

Solved Challenges (119)

LevelNamePointsDate
Number Sequence — Part 10113April 26, 2018, 12:22 a.m.
Advent-Challenge — Part 1200Dec. 9, 2017, 12:52 a.m.
Number Sequence — Part 9150Nov. 18, 2017, 4:55 p.m.
ASAC — A Strong(er) ADFGVX Cipher — Part 11,613July 13, 2016, 8:20 p.m.
Keyshanc — Part 21,107April 23, 2016, 5:36 p.m.
Pigpen with a twist — Part 21,102April 23, 2016, 1:14 a.m.
ORYX Stream Cipher Part II1,097April 20, 2016, 3:36 p.m.
Double Column Transposition — Part 11,128April 16, 2016, 12:12 a.m.
Double Column Transposition — Part 31,130April 14, 2016, 3:11 p.m.
Double Column Transposition — Part 41,131April 13, 2016, 7:14 p.m.
Double Column Transposition — Part 21,130April 13, 2016, 10:17 a.m.
New Year's Greetings — Part 4200March 21, 2016, 3:49 p.m.
New Year's Greetings — Part 3200March 21, 2016, 3:33 p.m.
New Year's Greetings — Part 2200March 21, 2016, 3:27 p.m.
New Year's Greetings — Part 1200March 21, 2016, 3:23 p.m.
Pigpen with a twist — Part 31,104Jan. 16, 2016, 8:14 p.m.
Unconcealed RSA messages1,105Jan. 2, 2016, 8:24 p.m.
Unusual encryption using a diophantine equation1,105Dec. 7, 2015, 2:01 p.m.
Lunchtime Attack on the Fully Homomorphic Encryption Scheme1,101Dec. 6, 2015, 5:29 p.m.
Image Noise200Nov. 21, 2015, 12:20 a.m.
News from Castle Mansfeld150Nov. 14, 2015, 11:38 p.m.
A hidden word — Part 2101Oct. 9, 2015, 12:57 a.m.
Flawed Usage of a OTP Cipher by the BND1,292Oct. 8, 2015, 9:06 p.m.
Weakened Granit — Part 1200Sept. 24, 2015, 7:44 p.m.
Number Sequence — Part 8200Sept. 14, 2015, 10:39 a.m.
Keyshanc — Part 11,113Aug. 2, 2015, 6:55 p.m.
Music Code — Part 21,105July 29, 2015, 6:13 p.m.
Music Code — Part 1100July 29, 2015, 6:10 p.m.
Monoalphabetic substitution with camouflage — Part 4100July 24, 2015, 3:59 p.m.
Monoalphabetic Substitution with Camouflage — Part 51,112July 22, 2015, 10:23 p.m.
Monoalphabetic substitution with camouflage — Part 31,109July 21, 2015, 8:37 p.m.
Monoalphabetic substitution with camouflage — Part 21,109July 20, 2015, 10:52 p.m.
Monoalphabetic substitution with camouflage — Part 1100July 3, 2015, 2:02 p.m.
Number Sequence — Part 7102May 20, 2015, 11:20 p.m.
Number Sequence — Part 6125March 26, 2015, 8:14 p.m.
M-138 — Part 31,444Jan. 5, 2015, 3:01 a.m.
M-138 — Part 21,824Dec. 25, 2014, 2:38 a.m.
M-138 — Part 1200Dec. 24, 2014, 4:32 p.m.
Kaskade-S/T — Part 21,108Dec. 19, 2014, 8:44 p.m.
Factorization Cipher — Part 31,116Dec. 16, 2014, 5:20 p.m.
Molehunt (Part 3/3)1,105Dec. 15, 2014, 6:42 p.m.
Partial Key Exposure with RSA — Part 11,117Dec. 5, 2014, 1:22 a.m.
Smartcard RSA1,106Dec. 2, 2014, 11:38 p.m.
ORYX Stream Cipher Part I1,106Nov. 25, 2014, 9:14 p.m.
Factorization Cipher — Part 21,117Oct. 10, 2014, 2:50 a.m.
An 'unhearable' message100Sept. 28, 2014, 12:15 a.m.
An Invisible Message100Sept. 26, 2014, 12:42 a.m.
Strange Message from Thessaloniki100Sept. 25, 2014, 7:30 p.m.
Number Sequence — Part 5100Sept. 25, 2014, 2:37 p.m.
Enigma Combinatorics100Sept. 25, 2014, 2:13 p.m.
AES key — encoded in the machine readable zone of a European ePassport1,119Sept. 23, 2014, 12:52 p.m.
The Last Note200Sept. 23, 2014, 12:23 a.m.
Enigma Part 21,107Sept. 19, 2014, 1:14 p.m.
Enigma Part 11,107Sept. 19, 2014, 12:06 p.m.
Hybrid Encryption I1,107Sept. 19, 2014, 1:21 a.m.
Heartbleed — Part 2200Aug. 29, 2014, 5:17 a.m.
Heartbleed — Part 1 200Aug. 29, 2014, 2:38 a.m.
Turing Bombe Enigma I100Aug. 8, 2014, 11:36 p.m.
Kaskade-S/T — Part 1100Aug. 8, 2014, 9:40 p.m.
Broadcasting and low exponent — RSA Attack1,115Aug. 8, 2014, 6:26 p.m.
Monoalphabetic Substitution100July 31, 2014, 11:48 p.m.
RSA: Two different keys — same ciphertext1,116July 31, 2014, 11:15 p.m.
Not-so-Secret Message from Malawi — Part I (RSA)1,108July 31, 2014, 11:14 p.m.
A really long number sequence1,116July 31, 2014, 11:13 p.m.
Brute-Force-Attack on Triple-DES with Reduced Key Space1,108July 31, 2014, 11:11 p.m.
BCR code (Book-Caesar-RSA)1,131July 31, 2014, 11:10 p.m.
Zodiac Cipher100July 31, 2014, 11:09 p.m.
Trifid Cipher100July 31, 2014, 11:06 p.m.
Recycled One-Time Pad100July 31, 2014, 11:04 p.m.
Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 1100July 31, 2014, 11:03 p.m.
Playfair with hints about the grid100July 31, 2014, 11:02 p.m.
¿No Hablas Español? No problemo!100July 31, 2014, 11:01 p.m.
Multilingual Monoalphabetic Substitution100July 31, 2014, 11 p.m.
Cascading Encryption — Part 1/3100July 31, 2014, 10:59 p.m.
Hill Cipher with Sudoku Key100July 31, 2014, 10:58 p.m.
Enigma Messages with Repeated Letters — Part 5101July 31, 2014, 10:56 p.m.
Enigma Messages with Repeated Letters — Part 4101July 31, 2014, 10:55 p.m.
Enigma Messages with Repeated Letters — Part 3101July 31, 2014, 10:54 p.m.
Enigma Messages with Repeated Letters — Part 2100July 31, 2014, 10:53 p.m.
Enigma Messages100July 31, 2014, 10:52 p.m.
ECDH-Key Exchange for Beginners100July 31, 2014, 10:50 p.m.
Double Columnar Transposition100July 31, 2014, 10:49 p.m.
Playfair Encryption100July 31, 2014, 10:48 p.m.
ADFGVX — Part 2100July 31, 2014, 10:47 p.m.
ADFGVX — Part 1100July 31, 2014, 10:46 p.m.
Enigma Messages with Repeated Letters — Part 1100July 31, 2014, 10:40 p.m.
Nils away on travel100July 31, 2014, 10:39 p.m.
The Book Code: A Challenge for Bookworms100July 31, 2014, 10:35 p.m.
A Secret Message from Castle Mansfeld100July 31, 2014, 10:34 p.m.
Molehunt (Part 1/3)100July 31, 2014, 10:33 p.m.
Molehunt (Part 2/3)100July 31, 2014, 10:32 p.m.
Pigpen with a twist — Part 1100July 31, 2014, 10:31 p.m.
From Russia with Love100July 31, 2014, 10:29 p.m.
How do you become a big cryptographer?100July 31, 2014, 10:29 p.m.
Classical Ciphers^3100July 31, 2014, 10:27 p.m.
Modified Caesar Cipher100July 31, 2014, 10:25 p.m.
Letter from the Alleged Countess Julie von Ortenburg100July 31, 2014, 10:22 p.m.
Reserve Hand Procedure — Part 1100July 31, 2014, 10:21 p.m.
Alice's Birthday Party (Part 2)1,108July 31, 2014, 10:18 p.m.
Alice's Birthday Party (Part 1)1,108July 31, 2014, 10:17 p.m.
Snow White and the seven dwarfs100July 31, 2014, 10:13 p.m.
Cracking SHA1-Hashed Passwords1,112July 31, 2014, 10:12 p.m.
One-Time Pad with Flaws100July 31, 2014, 10:11 p.m.
A modified homophonic cipher with reduced alphabets — Part 2100July 31, 2014, 10:01 p.m.
Grille Cipher100July 31, 2014, 9:58 p.m.
Letter to the Templars — Part 31,133July 31, 2014, 9:54 p.m.
A hidden word100July 31, 2014, 9:53 p.m.
A modified homophonic cipher with reduced alphabets — Part 1100July 31, 2014, 9:51 p.m.
Factorization Cipher — Part 1100July 31, 2014, 9:49 p.m.
Affine Codes / Modulo Arithmetic with N / Extended Euclid100July 31, 2014, 9:48 p.m.
Number Sequence — Part 4100July 31, 2014, 9:47 p.m.
Letter to the Templars — Part 2100July 31, 2014, 9:45 p.m.
Letter to the Templars — Part 1100July 31, 2014, 9:32 p.m.
Number Sequence — Part 3100July 31, 2014, 9:31 p.m.
Beaver Code100July 31, 2014, 9:28 p.m.
Caesar Encryption100July 31, 2014, 9:26 p.m.
Number Sequence — Part 2100July 31, 2014, 9:24 p.m.
Original Caesar Cipher100July 31, 2014, 9:22 p.m.
Number Sequence100July 31, 2014, 9:20 p.m.

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