| Date | User | Challenge | Score |
| alright | Modular Inverting | 25 | |
| alnyan | Bytes and Big Integers | 10 | |
| alnyan | Base64 | 10 | |
| alnyan | Hex | 5 | |
| Chinazovich | Bytes and Big Integers | 10 | |
| alnyan | ASCII | 5 | |
| alnyan | Great Snakes | 3 | |
| alnyan | Finding Flags | 2 | |
| alright | Modular Arithmetic 2 | 20 | |
| Dendy | Legendre Symbol | 35 | |
| Quoc130370 | Everything is Still Big | 100 | |
| ali_tech | Dancing Queen | 120 | |
| krishnao | ASCII | 5 | |
| tempest7716 | Point Negation | 10 | |
| sgrenz | Common Ground | 75 | |
| alright | Modular Arithmetic 1 | 20 | |
| wanjianjue | The Matrix Reloaded | 100 | |
| 202600460161 | XOR Properties | 15 | |
| krishnao | Great Snakes | 3 | |
| tempest7716 | Background Reading | 5 | |
| krishnao | Finding Flags | 2 | |
| ali_tech | Stream of Consciousness | 80 | |
| JonathanSDC8 | Structure of AES | 15 | |
| JonathanSDC8 | Resisting Bruteforce | 10 | |
| Chinazovich | Base64 | 10 | |
| JonathanSDC8 | Keyed Permutations | 5 | |
| alright | Extended GCD | 20 | |
| sgrenz | Transparency | 50 | |
| wanjianjue | The Matrix | 75 | |
| ali_tech | Logon Zero | 80 | |
| wanjianjue | Script Kiddie | 70 | |
| wanjianjue | Factoring | 15 | |
| wanjianjue | RSA Signatures | 25 | |
| wanjianjue | RSA Decryption | 20 | |
| wanjianjue | Private Keys | 20 | |
| wanjianjue | Euler's Totient | 20 | |
| wanjianjue | Public Keys | 15 | |
| wanjianjue | Modular Exponentiation | 10 | |
| wanjianjue | Deriving Symmetric Keys | 40 | |
| wanjianjue | Computing Shared Secrets | 30 | |
| wanjianjue | Computing Public Values | 25 | |
| wanjianjue | Generators of Groups | 20 | |
| wanjianjue | Working with Fields | 10 | |
| sgrenz | SSH Keys | 35 | |
| sgrenz | CERTainly not | 30 | |
| artem_1 | Montgomery's Ladder | 40 | |
| wanjianjue | Prime and Prejudice | 200 | |
| ali_tech | CTRIME | 70 | |
| ali_tech | Bean Counter | 60 | |
| Chinazovich | Hex | 5 |
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