| Date | User | Challenge | Score |
| g0ld3np4r3y | JSON in JSON | 40 | |
| itayrub | Bringing It All Together | 50 | |
| m4rz | You either know, XOR you don't | 30 | |
| khxjn | Inferius Prime | 30 | |
| Alergush | Factoring | 15 | |
| vladturcanu | Structure of AES | 15 | |
| Dedzuka | XOR Starter | 10 | |
| Nyunseo | Inferius Prime | 30 | |
| vladturcanu | Resisting Bruteforce | 10 | |
| whoiswhois | Hide and seek (ECSC 2023 (Norway)) | 0 | |
| vladturcanu | Keyed Permutations | 5 | |
| alzzz | Successive Powers | 60 | |
| vladturcanu | You either know, XOR you don't | 30 | |
| vladturcanu | Favourite byte | 20 | |
| m4rz | Favourite byte | 20 | |
| Dedzuka | Bytes and Big Integers | 10 | |
| vladturcanu | XOR Properties | 15 | |
| lolipop | JSON in JSON | 40 | |
| vladturcanu | XOR Starter | 10 | |
| SomeOneMe | Point Negation | 10 | |
| smn | Real Curve Crypto | 200 | |
| vladturcanu | Bytes and Big Integers | 10 | |
| m4rz | XOR Properties | 15 | |
| SIR_PANAGIOS | Finding Flags | 2 | |
| itayrub | Diffusion through Permutation | 30 | |
| Alergush | RSA Signatures | 25 | |
| thv_thm | Base64 | 10 | |
| Dedzuka | Base64 | 10 | |
| marcok | Modular Binomials | 80 | |
| Dedzuka | Hex | 5 | |
| anushki | Favourite byte | 20 | |
| marcok | Adrien's Signs | 80 | |
| risolbasi | Base64 | 10 | |
| chaeeeyoon05 | Infinite Descent | 50 | |
| mariam_elsaadawy | Working with Fields | 10 | |
| reny | Computing Public Values | 25 | |
| ra_mn | Manyprime | 40 | |
| Rocky888 | Point Negation | 10 | |
| anushki | XOR Properties | 15 | |
| thv_thm | Hex | 5 | |
| marcok | Chinese Remainder Theorem | 40 | |
| risolbasi | Hex | 5 | |
| Rocky888 | Background Reading | 5 | |
| risolbasi | ASCII | 5 | |
| Uramix | Quadratic Residues | 25 | |
| marcok | Modular Square Root | 35 | |
| Dedzuka | ASCII | 5 | |
| marcok | Legendre Symbol | 35 | |
| geraldnyeo | ECB Oracle | 60 | |
| Dedzuka | Great Snakes | 3 |
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