| Date | User | Challenge | Score |
| s30s0ft | Favourite byte | 20 | |
| s30s0ft | XOR Properties | 15 | |
| aaronamran | Lemur XOR | 40 | |
| Lin1247 | Great Snakes | 3 | |
| Tostrander | Factoring | 15 | |
| Tostrander | RSA Signatures | 25 | |
| wwz | L-Win | 120 | |
| aaronamran | You either know, XOR you don't | 30 | |
| aaronamran | Favourite byte | 20 | |
| aaronamran | XOR Properties | 15 | |
| Tostrander | Modular Exponentiation | 10 | |
| wwz | No Leaks | 100 | |
| aaronamran | XOR Starter | 10 | |
| Owen9davis | ASCII | 5 | |
| Owen9davis | Great Snakes | 3 | |
| aaronamran | Encoding Challenge | 40 | |
| wwz | Bruce Schneier's Password | 100 | |
| aaronamran | Bytes and Big Integers | 10 | |
| hakka52 | Toshi's Treasure | 150 | |
| Owen9davis | Finding Flags | 2 | |
| aaronamran | Base64 | 10 | |
| hakka52 | RSA vs RNG | 150 | |
| aaronamran | Hex | 5 | |
| Askadu | Transparency | 50 | |
| Askadu | SSH Keys | 35 | |
| Askadu | CERTainly not | 30 | |
| aaronamran | ASCII | 5 | |
| wwz | Bit by Bit | 100 | |
| kiki2892 | ASCII | 5 | |
| wwz | Armory | 100 | |
| Askadu | Privacy-Enhanced Mail? | 25 | |
| wwz | Gotta Go Fast | 40 | |
| zigzager | XOR Starter | 10 | |
| aaronamran | Network Attacks | 5 | |
| Askadu | Encoding Challenge | 40 | |
| aaronamran | Great Snakes | 3 | |
| emanu93 | Flipping Cookie | 60 | |
| nc4 | Quadratic Residues | 25 | |
| aaronamran | Finding Flags | 2 | |
| zigzager | Bytes and Big Integers | 10 | |
| HardxHard | No Way JOSE | 20 | |
| giardinodecorati | Script Kiddie | 70 | |
| aadad | Great Snakes | 3 | |
| HardxHard | JWT Sessions | 10 | |
| traktor | Ron was Wrong, Whit is Right | 90 | |
| HardxHard | Token Appreciation | 5 | |
| aadad | Finding Flags | 2 | |
| giardinodecorati | Static Client 2 | 120 | |
| HardxHard | Collider | 50 | |
| trebor | Base64 | 10 |
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