Account

Name
Luigi Tomelli
Username
archstanton
Joined
March 19, 2011, 8:31 a.m.

Rank
16
Points
127,538
Trophies
Gold2
Silver0
Bronze1

Solved Challenges (154)

LevelNamePointsDate
Breaking a Filter Generator1,119June 4, 2021, 7:29 p.m.
The LoRa Cipher: Logic Randomness — Part 11,147May 25, 2021, 6:35 p.m.
Find the right route — Part 1100May 20, 2021, 7:43 p.m.
AES ECB Wrong Encoding1,111May 20, 2021, 5:54 p.m.
Cryptanalysis Hacking Puzzles — Part 2100May 19, 2021, 7:50 p.m.
Lightweight Introduction to Lattices — Part 2100May 18, 2021, 6:27 p.m.
Cryptanalysis Hacking Puzzles — Part 1100May 18, 2021, 10:12 a.m.
Lightweight Introduction to Lattices — Part 1100May 17, 2021, 7:29 p.m.
Homophonic Encryption — Part 41,129May 16, 2021, 5:49 p.m.
Homophonic Encryption — Part 31,129May 14, 2021, 6:17 p.m.
Homophonic Encryption — Part 21,129May 13, 2021, 8:11 p.m.
Homophonic Encryption — Part 11,129May 11, 2021, 5:51 p.m.
Lightweight Introduction to Lattices — Part 31,167May 10, 2021, 10:22 a.m.
Polyphonic Substitution Cipher — Part 21,146May 6, 2021, 1:33 p.m.
Polyphonic Substitution Cipher — Part 11,141May 3, 2021, 6:39 p.m.
Polyhomophonic Substitution — Part 31,154May 1, 2021, 6:20 p.m.
Polyhomophonic Substitution — Part 21,153May 1, 2021, 5:29 p.m.
Polyhomophonic Substitution — Part 1100April 29, 2021, 4:20 p.m.
Wheatstone Cryptograph — Part 1120April 26, 2021, 5:03 p.m.
The T52 Sturgeon Challenge — Part 41,203Dec. 22, 2019, 1:48 p.m.
The T52 Sturgeon Challenge — Part 31,204Dec. 19, 2019, 1:52 p.m.
The T52 Sturgeon Challenge — Part 21,208Dec. 11, 2019, 6:04 p.m.
The T52 Sturgeon Challenge — Part 11,204Dec. 10, 2019, 2:42 p.m.
Monoalphabetic Substitution with Nostradamus Flavor1,660Feb. 19, 2019, 1:04 p.m.
M-138 — Part 41,106Dec. 24, 2018, 9:17 a.m.
M-138 — Part 31,106Dec. 21, 2018, 6:37 p.m.
Weakened Granit — Part 1100Dec. 21, 2018, 12:54 p.m.
Image Noise100Dec. 20, 2018, 9:56 a.m.
The Einstein Enigma1,164Dec. 19, 2018, 4:17 p.m.
Advent Challenge — Part 41,158Dec. 18, 2018, 2:22 p.m.
Advent Challenge — Part 31,158Dec. 18, 2018, 9:34 a.m.
Advent-Challenge — Part 21,157Dec. 17, 2018, 6:06 p.m.
Number Sequence — Part 9100Dec. 17, 2018, 1:01 p.m.
Summer Job1,191Dec. 17, 2018, 12:59 p.m.
Advent-Challenge — Part 1100Dec. 16, 2018, 11:05 a.m.
Fastest in the West1,191Dec. 16, 2018, 10:43 a.m.
Trendy Messenger1,191Dec. 15, 2018, 7:54 p.m.
Number Sequence — Part 10101Oct. 16, 2018, 1:29 p.m.
Modular Sequences106Oct. 11, 2018, 2:59 p.m.
Autokey Cipher107Oct. 9, 2018, 9:55 a.m.
Double Column Transposition — Part 41,139Nov. 29, 2015, 12:56 p.m.
Double Column Transposition — Part 31,139Nov. 16, 2015, 2:20 p.m.
Number Sequence — Part 8107Sept. 28, 2015, 9:54 a.m.
Number Sequence — Part 6101June 6, 2015, 6:36 p.m.
Number Sequence — Part 7101June 1, 2015, 4:12 p.m.
M-138 — Part 21,576Dec. 29, 2014, 1:53 p.m.
M-138 — Part 1120Dec. 28, 2014, 10:39 a.m.
RSA Factoring Challenge: RSA-2100Sept. 23, 2014, 10:27 p.m.
Heartbleed — Part 31,523Sept. 4, 2014, 10:21 p.m.
Heartbleed — Part 2114Sept. 3, 2014, 11:18 p.m.
Heartbleed — Part 1 114Sept. 3, 2014, 4:40 p.m.
Double Column Transposition — Part 21,259July 9, 2014, 6:33 p.m.
Double Column Transposition — Part 11,234July 8, 2014, 6:49 p.m.
Spanish Strip Cipher — Part 21,469April 7, 2014, 1:47 p.m.
Spanish Strip Cipher — Part 11,469April 7, 2014, 10:06 a.m.
Enigma Messages with Repeated Letters — Part 5110March 14, 2014, 6:07 p.m.
Enigma Messages with Repeated Letters — Part 4110March 14, 2014, 6:06 p.m.
Enigma Messages with Repeated Letters — Part 3111March 13, 2014, 5:03 p.m.
Enigma Messages with Repeated Letters — Part 2111Nov. 6, 2013, 2:01 p.m.
Trifid Cipher111Nov. 6, 2013, 10:19 a.m.
Enigma Messages with Repeated Letters — Part 1150Sept. 28, 2013, 11:40 a.m.
Hill Cipher with Sudoku Key125Sept. 8, 2013, 4:04 p.m.
From Russia with Love125Sept. 8, 2013, 10:18 a.m.
Sigaba Part 11,117Aug. 26, 2013, 12:14 p.m.
Nils away on travel150Aug. 9, 2013, 2:17 p.m.
RSA Factoring Challenge: RSA-7040Aug. 1, 2013, 9:37 a.m.
Monoalphabetic substitution with camouflage — Part 1100July 21, 2013, 4:18 p.m.
Purple 11,118July 20, 2013, 5:56 p.m.
Strange Message from Thessaloniki100July 8, 2013, 9:27 a.m.
Letter from the Alleged Countess Julie von Ortenburg100July 3, 2013, 9:30 a.m.
A Secret Message from Castle Mansfeld100June 30, 2013, 5:38 p.m.
Enigma Combinatorics100June 29, 2013, 3:31 p.m.
Classical Ciphers^3100June 29, 2013, 9:43 a.m.
ORYX Stream Cipher — Part 3 (revised)1,523June 13, 2013, 10:19 p.m.
ORYX Stream Cipher Part II1,120May 31, 2013, 12:51 p.m.
Music Code — Part 1100April 25, 2013, 2:38 p.m.
Music Code — Part 21,130April 25, 2013, 10:20 a.m.
Snow White and the seven dwarfs133April 22, 2013, 11:39 a.m.
Cascading Encryption — Part 3/31,485April 8, 2013, 11:32 a.m.
Typex — Part 21,725April 5, 2013, 9:50 p.m.
Monoalphabetic Substitution100April 1, 2013, 3:08 p.m.
Cascading Encryption — Part 2/31,547March 31, 2013, 8:34 p.m.
Double Columnar Transposition100March 25, 2013, 9:16 a.m.
Molehunt (Part 3/3)1,123March 21, 2013, 1:56 p.m.
Molehunt (Part 2/3)100March 21, 2013, 10:41 a.m.
Molehunt (Part 1/3)100March 20, 2013, 1:58 p.m.
ADFGVX — Part 1100March 20, 2013, 1:12 p.m.
Cascading Encryption — Part 1/3102March 19, 2013, 9:09 a.m.
Playfair with hints about the grid102March 17, 2013, 2:44 p.m.
Zodiac Cipher100March 12, 2013, 1:10 p.m.
Typex — Part 11,456March 12, 2013, 9:42 a.m.
Reserve Hand Procedure — Part 1200March 7, 2013, 9:46 a.m.
Multilingual Monoalphabetic Substitution103Feb. 28, 2013, 10:46 a.m.
Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 21,132Feb. 23, 2013, 3:23 p.m.
Enigma Messages117Jan. 29, 2013, 1:38 p.m.
A hidden word200Jan. 7, 2013, 1:37 p.m.
Recycled One-Time Pad109Dec. 1, 2012, 9:43 a.m.
Letter to the Templars — Part 32,000Oct. 10, 2012, 10:34 a.m.
CMEA 213,882Oct. 2, 2012, 4:30 p.m.
BCR code (Book-Caesar-RSA)1,824Sept. 13, 2012, 6:37 p.m.
Beaver Code200Aug. 14, 2012, 10:01 a.m.
CMEA 11,136Aug. 11, 2012, 5:17 p.m.
RSA with Special d13,887Aug. 4, 2012, 4:30 p.m.
Letter to the Templars — Part 2200July 31, 2012, 5:30 p.m.
Lunchtime Attack on the Fully Homomorphic Encryption Scheme1,140July 21, 2012, 4:36 p.m.
Number Sequence — Part 5101July 17, 2012, 1:45 p.m.
Letter to the Templars — Part 1200July 17, 2012, 11:23 a.m.
Kaskade-S/T — Part 21,144July 6, 2012, 6:08 p.m.
Pigpen with a twist — Part 1100June 20, 2012, 3:28 p.m.
ADFGVX — Part 2100June 19, 2012, 11:12 a.m.
Playfair Encryption100June 16, 2012, 5:48 p.m.
A really long number sequence1,170June 13, 2012, 11:44 a.m.
Turing Bombe Enigma I100June 10, 2012, 4:57 p.m.
Enigma Part 11,136June 8, 2012, 11:28 a.m.
Keyshanc — Part 21,414June 6, 2012, 8:46 p.m.
How do you become a big cryptographer?110June 6, 2012, 8:36 p.m.
Keyshanc — Part 11,485May 31, 2012, 1:36 p.m.
Enigma Part 21,137May 23, 2012, 10:52 p.m.
Smartcard RSA1,138May 19, 2012, 10:30 a.m.
Unconcealed RSA messages1,188May 17, 2012, 10:29 p.m.
Modified Caesar Cipher100May 3, 2012, 6:36 p.m.
Lattice Part 11,151May 1, 2012, 11:42 a.m.
Factorization Cipher — Part 31,224April 26, 2012, 9:43 a.m.
Number Sequence — Part 4114April 25, 2012, 10:46 a.m.
¿No Hablas Español? No problemo!120April 23, 2012, 9:28 a.m.
A modified homophonic cipher with reduced alphabets — Part 2100April 3, 2012, 10:28 a.m.
A modified homophonic cipher with reduced alphabets — Part 1100April 3, 2012, 9:37 a.m.
The Book Code: A Challenge for Bookworms108April 3, 2012, 8:49 a.m.
Number Sequence — Part 3200March 31, 2012, 9:22 a.m.
Cracking SHA1-Hashed Passwords1,158March 27, 2012, 10:57 a.m.
ORYX Stream Cipher Part I1,142March 24, 2012, 10:38 a.m.
Brute-Force-Attack on Triple-DES with Reduced Key Space1,142March 15, 2012, 1:39 p.m.
Hybrid Encryption I1,144March 15, 2012, 9:44 a.m.
Broadcasting and low exponent — RSA Attack1,179March 13, 2012, 9:42 a.m.
RSA: Two different keys — same ciphertext1,185March 12, 2012, 9:59 a.m.
One-Time Pad with Flaws100March 10, 2012, 11 a.m.
Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 1100March 8, 2012, 10:26 a.m.
Partial Key Exposure with RSA — Part 11,362March 5, 2012, 4:10 p.m.
Not-so-Secret Message from Malawi — Part II (ECC)1,143March 4, 2012, 8:45 p.m.
ECDH-Key Exchange for Beginners120Feb. 28, 2012, 9:14 a.m.
Not-so-Secret Message from Malawi — Part I (RSA)1,144Feb. 25, 2012, 10:49 a.m.
Caesar Encryption100Feb. 24, 2012, 5:25 p.m.
Alice's Birthday Party (Part 2)1,144Feb. 20, 2012, 10:55 a.m.
Alice's Birthday Party (Part 1)1,145Feb. 11, 2012, 6:27 p.m.
Unusual encryption using a diophantine equation1,200Feb. 9, 2012, 1:35 p.m.
Kaskade-S/T — Part 1100Jan. 30, 2012, 1:05 p.m.
AES key — encoded in the machine readable zone of a European ePassport1,523Jan. 24, 2012, 10:52 a.m.
Grille Cipher101Jan. 17, 2012, 12:51 p.m.
Factorization Cipher — Part 21,294Jan. 16, 2012, 1:56 p.m.
Factorization Cipher — Part 1101Jan. 1, 2012, 2:38 p.m.
Affine Codes / Modulo Arithmetic with N / Extended Euclid101Jan. 1, 2012, 1:58 p.m.
Number Sequence — Part 2101Dec. 31, 2011, 6:20 p.m.
Number Sequence100Dec. 31, 2011, 6:01 p.m.
Original Caesar Cipher101March 19, 2011, 1:38 p.m.

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