| Image Noise | 100 | Aug. 15, 2017, 12:17 p.m. |
| ¿No Hablas Español? No problemo! | 100 | Aug. 9, 2017, 7:28 p.m. |
| Factorization Cipher — Part 3 | 1,097 | Aug. 9, 2017, 5:49 p.m. |
| Factorization Cipher — Part 2 | 1,097 | Aug. 3, 2017, 6:43 p.m. |
| How do you become a big cryptographer? | 100 | July 29, 2017, 2:24 p.m. |
| RSA: Two different keys — same ciphertext | 1,095 | July 22, 2017, 1:03 p.m. |
| M-138 — Part 1 | 100 | July 20, 2017, 10:24 p.m. |
| Snow White and the seven dwarfs | 100 | July 20, 2017, 8:04 p.m. |
| Not-so-Secret Message from Malawi — Part I (RSA) | 1,092 | July 19, 2017, 8:35 p.m. |
| Factorization Cipher — Part 1 | 100 | July 17, 2017, 8:02 p.m. |
| Monoalphabetic Substitution | 100 | July 17, 2017, 6:11 p.m. |
| Broadcasting and low exponent — RSA Attack | 1,095 | July 16, 2017, 4:48 p.m. |
| Alice's Birthday Party (Part 2) | 1,092 | July 16, 2017, 4:38 p.m. |
| Alice's Birthday Party (Part 1) | 1,092 | July 16, 2017, 4:31 p.m. |
| Letter to the Templars — Part 3 | 1,101 | July 16, 2017, 1:22 p.m. |
| Letter to the Templars — Part 2 | 100 | July 16, 2017, 12:50 p.m. |
| Letter to the Templars — Part 1 | 100 | July 15, 2017, 7:16 p.m. |