| Date | User | Challenge | Score |
| bakil | RSA Decryption | 20 | |
| brew | Export-grade | 100 | |
| bakil | Public Keys | 15 | |
| bakil | Modular Exponentiation | 10 | |
| Iceydrag | Bringing It All Together | 50 | |
| Moi3032 | Successive Powers | 60 | |
| bakil | Modes of Operation Starter | 15 | |
| abdalmajeedalry | Great Snakes | 3 | |
| OusmanePa | Base64 | 10 | |
| OnlyD92 | Finding Flags | 2 | |
| abdalmajeedalry | Finding Flags | 2 | |
| Iceydrag | Diffusion through Permutation | 30 | |
| zDark | RSA Decryption | 20 | |
| lapa | Monoprime | 30 | |
| silvereagle429 | Modular Square Root | 35 | |
| Comsec | Greatest Common Divisor | 15 | |
| OusmanePa | Hex | 5 | |
| NTRUDR | Modular Exponentiation | 10 | |
| Iceydrag | Confusion through Substitution | 25 | |
| OusmanePa | ASCII | 5 | |
| SCHROBB | Symmetry | 50 | |
| Tima | Great Snakes | 3 | |
| Iceydrag | Round Keys | 20 | |
| Tima | Finding Flags | 2 | |
| zDark | Private Keys | 20 | |
| OusmanePa | Great Snakes | 3 | |
| Iceydrag | Structure of AES | 15 | |
| OusmanePa | Finding Flags | 2 | |
| WertherSamsa | ECB Oracle | 60 | |
| ev0l | Greatest Common Divisor | 15 | |
| thaggs1066 | RSA or HMAC? | 35 | |
| moriMorri | Bytes and Big Integers | 10 | |
| ev0l | You either know, XOR you don't | 30 | |
| brew | Parameter Injection | 60 | |
| random_two0 | Modular Inverting | 25 | |
| random_two0 | Greatest Common Divisor | 15 | |
| mcqueen | Greatest Common Divisor | 15 | |
| random_two0 | Modular Arithmetic 1 | 20 | |
| brew | Deriving Symmetric Keys | 40 | |
| ev0l | Favourite byte | 20 | |
| random_two0 | Modular Arithmetic 2 | 20 | |
| brew | Computing Shared Secrets | 30 | |
| zDark | Euler's Totient | 20 | |
| Moi3032 | Chinese Remainder Theorem | 40 | |
| random_two0 | Lemur XOR | 40 | |
| bakil | Resisting Bruteforce | 10 | |
| bakil | Keyed Permutations | 5 | |
| ipaa | Hex | 5 | |
| flagweaver | No Way JOSE | 20 | |
| random_two0 | Favourite byte | 20 |
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