| Date | User | Challenge | Score |
| lainpattern | Favourite byte | 20 | |
| nomaisthere | Extended GCD | 20 | |
| JonnyCage24 | Hex | 5 | |
| GINO_IL_P4TATINO | Background Reading | 5 | |
| lucy54 | CTRIME | 70 | |
| sixsquareAI | Digestive | 60 | |
| shmil123 | ECB CBC WTF | 55 | |
| Giovanni2004 | Deriving Symmetric Keys | 40 | |
| trapwno | Round Keys | 20 | |
| lainpattern | XOR Properties | 15 | |
| Giovanni2004 | Computing Shared Secrets | 30 | |
| xseris | Everything is Still Big | 100 | |
| Giovanni2004 | Computing Public Values | 25 | |
| Kyle_0215 | Montgomery's Ladder | 40 | |
| m0dxk | Favourite byte | 20 | |
| binki_64 | Structure of AES | 15 | |
| Heba_Ajjour | Favourite byte | 20 | |
| Giovanni2004 | Generators of Groups | 20 | |
| shmil123 | ECB Oracle | 60 | |
| Giovanni2004 | Working with Fields | 10 | |
| trapwno | Structure of AES | 15 | |
| bschweitz | Modular Arithmetic 1 | 20 | |
| webhacker | RSA Decryption | 20 | |
| Giovanni2004 | Modulus Inutilis | 50 | |
| lemful | Quadratic Residues | 25 | |
| Giovanni2004 | Salty | 20 | |
| Bekashy | Great Snakes | 3 | |
| Giovanni2004 | Manyprime | 40 | |
| Bekashy | Finding Flags | 2 | |
| Giovanni2004 | Monoprime | 30 | |
| trapwno | Resisting Bruteforce | 10 | |
| waaehh | Curveball | 100 | |
| defa | Scalar Multiplication | 35 | |
| platinumxy | Bringing It All Together | 50 | |
| Giovanni2004 | Factoring | 15 | |
| trapwno | Keyed Permutations | 5 | |
| lemful | Modular Inverting | 25 | |
| Giovanni2004 | RSA Signatures | 25 | |
| xseris | Crossed Wires | 100 | |
| Heba_Ajjour | XOR Properties | 15 | |
| tfabjan | Greatest Common Divisor | 15 | |
| saya | Bytes and Big Integers | 10 | |
| Merci_b | Export-grade | 100 | |
| lemful | Modular Arithmetic 2 | 20 | |
| GINO_IL_P4TATINO | RSA Signatures | 25 | |
| hanifshhb | Factoring | 15 | |
| shmil123 | Passwords as Keys | 50 | |
| platinumxy | Diffusion through Permutation | 30 | |
| saya | Base64 | 10 | |
| hanifshhb | RSA Decryption | 20 |
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