| Date | User | Challenge | Score |
| NguyenNK | Size and Basis | 15 | |
| Haaf | ASCII | 5 | |
| agha009 | Finding Flags | 2 | |
| Muthaiah | ECB CBC WTF | 55 | |
| BlueMango | You either know, XOR you don't | 30 | |
| NguyenNK | Vectors | 10 | |
| 2HUB1 | Diffusion through Permutation | 30 | |
| Haaf | Great Snakes | 3 | |
| Heba_Ajjour | Curveball | 100 | |
| lippy | Deriving Symmetric Keys | 40 | |
| Haaf | Finding Flags | 2 | |
| lippy | Computing Shared Secrets | 30 | |
| lippy | Computing Public Values | 25 | |
| BlueMango | Favourite byte | 20 | |
| lippy | Generators of Groups | 20 | |
| lippy | Working with Fields | 10 | |
| lippy | Modulus Inutilis | 50 | |
| BlueMango | XOR Properties | 15 | |
| lippy | Salty | 20 | |
| lippy | Manyprime | 40 | |
| fyzanwr | You either know, XOR you don't | 30 | |
| BlueMango | XOR Starter | 10 | |
| fyzanwr | Favourite byte | 20 | |
| 2HUB1 | Confusion through Substitution | 25 | |
| Retr0_Monster | XOR Starter | 10 | |
| fyzanwr | XOR Properties | 15 | |
| lizsikuku | Modular Binomials | 80 | |
| Abhinav_Manoj | Salty | 20 | |
| Retr0_Monster | Bytes and Big Integers | 10 | |
| soln1k | Export-grade | 100 | |
| SCHROBB | Keyed Permutations | 5 | |
| soln1k | Parameter Injection | 60 | |
| soln1k | Deriving Symmetric Keys | 40 | |
| Alexin | XOR Starter | 10 | |
| soln1k | Computing Shared Secrets | 30 | |
| soln1k | Computing Public Values | 25 | |
| soln1k | Generators of Groups | 20 | |
| soln1k | Working with Fields | 10 | |
| soln1k | Modulus Inutilis | 50 | |
| fyzanwr | XOR Starter | 10 | |
| soln1k | Salty | 20 | |
| 0xAre | Great Snakes | 3 | |
| soln1k | Manyprime | 40 | |
| 0xAre | Finding Flags | 2 | |
| derfail | Modular Binomials | 80 | |
| 2HUB1 | Structure of AES | 15 | |
| derfail | Adrien's Signs | 80 | |
| BlueMango | Encoding Challenge | 40 | |
| bhakku | Passwords as Keys | 50 | |
| soln1k | Monoprime | 30 |
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