| Date | User | Challenge | Score |
| cielsen | Modular Arithmetic 1 | 20 | |
| GG_gemink | Point Negation | 10 | |
| emors9 | Favourite byte | 20 | |
| GG_gemink | Triple DES | 60 | |
| ragunogh | Factoring | 15 | |
| revivd | Chinese Remainder Theorem | 40 | |
| GG_gemink | Lazy CBC | 60 | |
| Ness2626 | Null or Never | 100 | |
| ragunogh | RSA Signatures | 25 | |
| x0dwer | Bytes and Big Integers | 10 | |
| x0dwer | Base64 | 10 | |
| GG_gemink | Flipping Cookie | 60 | |
| slycro | Transparency | 50 | |
| x0dwer | Hex | 5 | |
| hamza_as22 | Finding Flags | 2 | |
| x0dwer | ASCII | 5 | |
| x0dwer | Great Snakes | 3 | |
| x0dwer | Finding Flags | 2 | |
| no_ai_no_problem | Salty | 20 | |
| no_ai_no_problem | Manyprime | 40 | |
| Seddik | Passwords as Keys | 50 | |
| GG_gemink | ECB Oracle | 60 | |
| anbarbon | Symmetry | 50 | |
| emors9 | XOR Properties | 15 | |
| revivd | Modular Square Root | 35 | |
| no_ai_no_problem | Monoprime | 30 | |
| Minhhau | Resisting Bruteforce | 10 | |
| no_ai_no_problem | Factoring | 15 | |
| no_ai_no_problem | RSA Signatures | 25 | |
| Minhhau | Keyed Permutations | 5 | |
| ahmed_1ACR | Favourite byte | 20 | |
| RawanCys | You either know, XOR you don't | 30 | |
| no_ai_no_problem | RSA Decryption | 20 | |
| no_ai_no_problem | Private Keys | 20 | |
| RawanCys | Favourite byte | 20 | |
| no_ai_no_problem | Euler's Totient | 20 | |
| no_ai_no_problem | Public Keys | 15 | |
| cyk0sure | Triple DES | 60 | |
| no_ai_no_problem | Modular Exponentiation | 10 | |
| cyk0sure | Lazy CBC | 60 | |
| no_ai_no_problem | You either know, XOR you don't | 30 | |
| no_ai_no_problem | Favourite byte | 20 | |
| wawaThanaporn | Hex | 5 | |
| Crimson_Ronin | Base64 | 10 | |
| no_ai_no_problem | XOR Properties | 15 | |
| RawanCys | XOR Properties | 15 | |
| Alfred_Gitonga | You either know, XOR you don't | 30 | |
| Crimson_Ronin | Hex | 5 | |
| kakobtg | The j-invariant | 20 | |
| no_ai_no_problem | XOR Starter | 10 |
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