| Date | User | Challenge | Score |
| rux1 | XOR Properties | 15 | |
| l3th4l | Modular Square Root | 35 | |
| limingxue | RSA Decryption | 20 | |
| Mariz_1123 | Hex | 5 | |
| tanxiaoyan | Network Attacks | 5 | |
| limingxue | Private Keys | 20 | |
| limingxue | Euler's Totient | 20 | |
| limingxue | Public Keys | 15 | |
| limingxue | Modular Exponentiation | 10 | |
| Bachatero | Resisting Bruteforce | 10 | |
| Bachatero | Keyed Permutations | 5 | |
| bluesky2113 | Diffusion through Permutation | 30 | |
| pavel_edits | XOR Properties | 15 | |
| Mariz_1123 | ASCII | 5 | |
| rux1 | XOR Starter | 10 | |
| aysesudekrbl | XOR Properties | 15 | |
| RotaJakiro | Lemur XOR | 40 | |
| cypher768 | Favourite byte | 20 | |
| aldrinprince23 | Great Snakes | 3 | |
| limingxue | Successive Powers | 60 | |
| rux1 | Bytes and Big Integers | 10 | |
| limingxue | Structure of AES | 15 | |
| limingxue | Network Attacks | 5 | |
| No_name05 | Resisting Bruteforce | 10 | |
| sayai | Modular Binomials | 80 | |
| aysesudekrbl | XOR Starter | 10 | |
| limingxue | Resisting Bruteforce | 10 | |
| limingxue | Keyed Permutations | 5 | |
| No_name05 | Keyed Permutations | 5 | |
| SAATVIK | Crossed Wires | 100 | |
| vito4316 | No Way Back Home | 100 | |
| No_name05 | Modular Binomials | 80 | |
| shreshth44 | Point Negation | 10 | |
| rux1 | Base64 | 10 | |
| rux1 | Hex | 5 | |
| rux1 | ASCII | 5 | |
| Bachatero | Modular Binomials | 80 | |
| rux1 | Great Snakes | 3 | |
| YYMMX | Image Point Arithmetic | 30 | |
| rux1 | Finding Flags | 2 | |
| cypher768 | XOR Properties | 15 | |
| YYMMX | Where's the Supersingular Curve | 25 | |
| Djak0 | Background Reading | 5 | |
| YYMMX | The j-invariant | 20 | |
| No_name05 | Adrien's Signs | 80 | |
| YYMMX | Introduction to Isogenies | 10 | |
| Matchabowl | Additive | 70 | |
| SAATVIK | Everything is Big | 70 | |
| No_name05 | Chinese Remainder Theorem | 40 | |
| Matchabowl | Static Client | 100 |
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