| Date | User | Challenge | Score |
| alzzz | Stream of Consciousness | 80 | |
| ER8IK | Great Snakes | 3 | |
| ER8IK | Finding Flags | 2 | |
| b1smrk | You either know, XOR you don't | 30 | |
| rytui | Finding Flags | 2 | |
| thomymy | Legendre Symbol | 35 | |
| b1smrk | Favourite byte | 20 | |
| Holl0w | LWE High Bits Message | 15 | |
| Holl0w | LWE Low Bits Message | 20 | |
| Holl0w | LWE Background | 5 | |
| Holl0w | Missing Modulus | 80 | |
| duongsec | You either know, XOR you don't | 30 | |
| b1smrk | XOR Properties | 15 | |
| Holl0w | Noise Cheap | 90 | |
| Holl0w | Nativity | 60 | |
| Holl0w | Too Many Errors | 100 | |
| Holl0w | Bounded Noise | 50 | |
| Holl0w | Backpack Cryptography | 120 | |
| aton | XOR Starter | 10 | |
| Holl0w | Noise Free | 40 | |
| Holl0w | Find the Lattice | 100 | |
| Holl0w | From Private to Public Key LWE | 25 | |
| Holl0w | LWE Intro | 10 | |
| Holl0w | Gram Schmidt | 30 | |
| Holl0w | Gaussian Reduction | 50 | |
| Holl0w | What's a Lattice? | 40 | |
| Holl0w | Size and Basis | 15 | |
| Holl0w | Vectors | 10 | |
| eraa9160 | Lemur XOR | 40 | |
| 0xs1nr | Flipping Cookie | 60 | |
| efffectery | XOR Starter | 10 | |
| eraa9160 | You either know, XOR you don't | 30 | |
| Psofos | Keyed Permutations | 5 | |
| Psofos | Working with Fields | 10 | |
| MrCobblepot | Confusion through Substitution | 25 | |
| karde | Great Snakes | 3 | |
| sct | SSH Keys | 35 | |
| Marina_turner2 | Finding Flags | 2 | |
| karde | Finding Flags | 2 | |
| Fedqys | Chinese Remainder Theorem | 40 | |
| eraa9160 | Favourite byte | 20 | |
| Holl0w | Megalomaniac 3 | 120 | |
| Holl0w | Decrypting TLS 1.3 | 35 | |
| sct | CERTainly not | 30 | |
| Holl0w | Megalomaniac 1 | 100 | |
| Holl0w | RSA or HMAC? Part 2 | 100 | |
| Holl0w | Authenticated Handshake | 40 | |
| Holl0w | Decrypting TLS 1.2 | 30 | |
| Holl0w | Saying Hello | 20 | |
| Holl0w | TLS Handshake | 15 |
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