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Name

Silvia Kortmann

Username

mikinsget

Joined

Oct. 19, 2010, 10:14 p.m.

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33,714

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Solved Challenges (60)

Name	Points	Date
Fastest in the West	1,101	March 29, 2023, midnight
Unconcealed RSA messages	1,080	March 25, 2023, 4:45 p.m.
Number Sequence	100	Dec. 17, 2022, 6:39 p.m.
The Syllabary Cipher – Part 1	200	Oct. 28, 2022, 8:44 p.m.
Merkle-Hellman Knapsack Challenge - Part 1	200	Oct. 15, 2022, 4:31 a.m.
Modified Caesar Cipher	100	Aug. 6, 2022, 9:53 p.m.
Caesar Encryption	100	Aug. 6, 2022, 2:56 a.m.
Snow White and the seven dwarfs	100	July 9, 2022, 6:17 p.m.
Partial Key Exposure with RSA — Part 1	1,082	July 3, 2022, 11:55 p.m.
Cracking SHA1-Hashed Passwords	1,080	July 3, 2022, 7:50 p.m.
Smartcard RSA	1,080	April 15, 2022, 7:42 p.m.
The Book Code: A Challenge for Bookworms	100	April 14, 2022, 12:11 a.m.
Nils away on travel	100	April 2, 2022, 10:10 p.m.
Alberti Challenge — Part 1	200	March 27, 2022, 2:59 p.m.
The Last Note	100	March 15, 2022, 12:25 a.m.
Number Sequence — Part 8	100	March 2, 2022, 2:16 p.m.
ECDH-Key Exchange for Beginners	100	Feb. 18, 2022, 10:13 p.m.
Not-so-Secret Message from Malawi — Part I (RSA)	1,080	Feb. 16, 2022, 11:55 p.m.
Cryptanalysis Hacking Puzzles — Part 2	100	Feb. 14, 2022, 11:06 p.m.
Modular Sequences	100	Feb. 12, 2022, 5:31 p.m.
Advent-Challenge — Part 1	100	Feb. 4, 2022, 7:44 p.m.
BCR code (Book-Caesar-RSA)	1,084	Feb. 1, 2022, 2:19 a.m.
A hidden word	100	Jan. 23, 2022, 11:26 p.m.
Enigma Messages with Repeated Letters — Part 1	100	Jan. 21, 2022, 1:27 a.m.
One-Time Pad with Flaws	100	Oct. 24, 2021, 9:27 p.m.
M-138 — Part 2	1,093	July 31, 2021, 11:47 a.m.
M-138 — Part 1	100	July 24, 2021, 11:44 p.m.
Advent Challenge — Part 4	1,110	July 22, 2021, 12:16 p.m.
New Year's Greetings — Part 1	100	July 22, 2021, 12:11 p.m.
Lattice Part 1	1,082	July 16, 2021, 10:40 p.m.
Wheatstone Cryptograph — Part 1	101	July 7, 2021, 1:01 a.m.
Hill Cipher with Sudoku Key	100	July 4, 2021, 6:47 p.m.
Factorization Cipher — Part 3	1,084	May 2, 2021, 5:38 p.m.
The Einstein Enigma	1,113	April 18, 2021, 2:58 p.m.
Molehunt (Part 2/3)	100	April 12, 2021, 5:48 p.m.
Molehunt (Part 1/3)	100	April 12, 2021, 3:12 a.m.
Monoalphabetic Substitution	100	April 7, 2021, 1:10 p.m.
Autokey Cipher	100	March 20, 2021, 8:07 p.m.
Affine Codes / Modulo Arithmetic with N / Extended Euclid	100	Feb. 22, 2021, 1:59 p.m.
Factorization Cipher — Part 2	1,085	Feb. 11, 2021, 4:35 p.m.
Factorization Cipher — Part 1	100	Jan. 26, 2021, 7:24 p.m.
Advent Challenge — Part 3	1,115	Dec. 26, 2020, 2:21 p.m.
AES ECB Wrong Encoding	1,120	July 26, 2020, 1:55 a.m.
Lightweight Introduction to Lattices — Part 3	1,824	July 18, 2020, 10:43 a.m.
Handycipher made in love — Part 2	1,152	July 4, 2020, 4:11 p.m.
Handycipher made in love — Part 1	1,144	July 3, 2020, 12:30 p.m.
Trendy Messenger	1,406	June 29, 2018, 10:26 a.m.
Summer Job	1,433	June 26, 2018, 1:36 a.m.
Alice's Birthday Party (Part 2)	1,089	May 17, 2018, 2:28 a.m.
Advent-Challenge — Part 2	1,203	May 17, 2018, 1:25 a.m.
Alice's Birthday Party (Part 1)	1,089	May 15, 2018, 10:35 p.m.
RSA: Two different keys — same ciphertext	1,092	May 9, 2018, 12:56 a.m.
Broadcasting and low exponent — RSA Attack	1,092	May 7, 2018, 3:02 p.m.
Letter from the Alleged Countess Julie von Ortenburg	100	Nov. 26, 2017, 3:37 a.m.
Letter to the Templars — Part 2	100	Oct. 29, 2017, 3:50 a.m.
Letter to the Templars — Part 3	1,100	Oct. 29, 2017, 3:35 a.m.
Letter to the Templars — Part 1	100	Oct. 29, 2017, 12:40 a.m.
Beaver Code	100	April 23, 2017, 7:35 p.m.
Number Sequence — Part 2	100	April 23, 2017, 7:34 p.m.
Original Caesar Cipher	100	Dec. 5, 2012, 1:39 a.m.