| Date | User | Challenge | Score |
| GhostStorm | Finding Flags | 2 | |
| kzzm | Point Negation | 10 | |
| ub_krypto_25_01 | Euler's Totient | 20 | |
| 5py_d | XOR Properties | 15 | |
| ub_krypto_25_01 | Public Keys | 15 | |
| Mosomat | ASCII | 5 | |
| mauust | Bytes and Big Integers | 10 | |
| ub_krypto_25_01 | Modular Exponentiation | 10 | |
| ub_krypto_25_03 | Modular Exponentiation | 10 | |
| JellyGames | Modular Square Root | 35 | |
| mauust | Base64 | 10 | |
| GG_gemink | Diffusion through Permutation | 30 | |
| Mosomat | Great Snakes | 3 | |
| Mosomat | Finding Flags | 2 | |
| 5py_d | XOR Starter | 10 | |
| Amory48 | Adrien's Signs | 80 | |
| martonpe | Structure of AES | 15 | |
| NOreVerseSHELL | Adrien's Signs | 80 | |
| s4lmon | A Twisted Mind | 80 | |
| ub_krypto_25_01 | Deriving Symmetric Keys | 40 | |
| spinflipper31415 | Favourite byte | 20 | |
| AruRajaIblis | Base64 | 10 | |
| 5py_d | Bytes and Big Integers | 10 | |
| ub_krypto_20 | Deriving Symmetric Keys | 40 | |
| 5py_d | Base64 | 10 | |
| myrrhderous | ASCII | 5 | |
| moe0l | Bruce Schneier's Password | 100 | |
| JellyGames | Legendre Symbol | 35 | |
| ub_krypto_18 | Deriving Symmetric Keys | 40 | |
| GG_gemink | Confusion through Substitution | 25 | |
| KMA_SiriuS_ | XOR Starter | 10 | |
| kzzm | Background Reading | 5 | |
| 5py_d | Hex | 5 | |
| mauust | Hex | 5 | |
| spinflipper31415 | XOR Properties | 15 | |
| HashKselR | Bytes and Big Integers | 10 | |
| ub_krypto_25_01 | Computing Shared Secrets | 30 | |
| AruRajaIblis | Hex | 5 | |
| kaneman_of_zero | XOR Properties | 15 | |
| AruRajaIblis | ASCII | 5 | |
| 5py_d | ASCII | 5 | |
| s4lmon | No Difference | 175 | |
| mauust | ASCII | 5 | |
| NOreVerseSHELL | Chinese Remainder Theorem | 40 | |
| GG_gemink | Round Keys | 20 | |
| HashKselR | Base64 | 10 | |
| 5py_d | Great Snakes | 3 | |
| bbaoaanh | Scalar Multiplication | 35 | |
| QwQll | Dancing Queen | 120 | |
| JellyGames | Quadratic Residues | 25 |
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