| Date | User | Challenge | Score |
| Jordan_V | Network Attacks | 5 | |
| nullex | Structure of AES | 15 | |
| V1ckey | Salty | 20 | |
| SupaFast | Greatest Common Divisor | 15 | |
| Cupi | XOR Starter | 10 | |
| Nada34 | You either know, XOR you don't | 30 | |
| fonya | RSA Signatures | 25 | |
| rania56 | You either know, XOR you don't | 30 | |
| fonya | Monoprime | 30 | |
| V1ckey | Manyprime | 40 | |
| fonya | Factoring | 15 | |
| fonya | RSA Decryption | 20 | |
| Aloutrance | Smooth Criminal | 60 | |
| Cupi | Bytes and Big Integers | 10 | |
| Nada34 | Favourite byte | 20 | |
| rania56 | Favourite byte | 20 | |
| fonya | Private Keys | 20 | |
| fonya | Euler's Totient | 20 | |
| fonya | Public Keys | 15 | |
| julialu | Great Snakes | 3 | |
| alteredtiming | Finding Flags | 2 | |
| fonya | Modular Exponentiation | 10 | |
| squ4r00t | Authenticated Handshake | 40 | |
| rania56 | XOR Properties | 15 | |
| Nada34 | XOR Properties | 15 | |
| lindr4x | Finding Flags | 2 | |
| julialu | Finding Flags | 2 | |
| ggerod | Bytes and Big Integers | 10 | |
| Nada34 | XOR Starter | 10 | |
| rania56 | XOR Starter | 10 | |
| yoyosarefun | Round Keys | 20 | |
| ahmqd | A Twisted Mind | 80 | |
| V1ckey | Monoprime | 30 | |
| ggerod | Base64 | 10 | |
| Nada34 | Bytes and Big Integers | 10 | |
| rania56 | Bytes and Big Integers | 10 | |
| Kujikato | Great Snakes | 3 | |
| ggerod | Hex | 5 | |
| ugello | Bytes and Big Integers | 10 | |
| Kujikato | Finding Flags | 2 | |
| Bosog | Quadratic Residues | 25 | |
| Nada34 | Base64 | 10 | |
| colt_the_sloth | No Way JOSE | 20 | |
| Nada34 | Hex | 5 | |
| ggerod | ASCII | 5 | |
| ggerod | Network Attacks | 5 | |
| Nada34 | ASCII | 5 | |
| TREN | Greatest Common Divisor | 15 | |
| ugello | Base64 | 10 | |
| shprota | Adrien's Signs | 80 |
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