| Date | User | Challenge | Score |
| Nidhogg | Base64 | 10 | |
| l4t4r | Structure of AES | 15 | |
| Nidhogg | Hex | 5 | |
| kzzm | Gram Schmidt | 30 | |
| l4t4r | Resisting Bruteforce | 10 | |
| ynwa_ | Parameter Injection | 60 | |
| Abdulrahman20 | Bean Counter | 60 | |
| l4t4r | Keyed Permutations | 5 | |
| Nidhogg | ASCII | 5 | |
| Sealeodaseal | Favourite byte | 20 | |
| l4t4r | Legendre Symbol | 35 | |
| Nidhogg | Great Snakes | 3 | |
| retne | Lemur XOR | 40 | |
| kzzm | Size and Basis | 15 | |
| Julie_Yeh | Modular Inverting | 25 | |
| kzzm | Vectors | 10 | |
| 2LWaterEverday | Extended GCD | 20 | |
| Sealeodaseal | XOR Properties | 15 | |
| Lyxchee | Keyed Permutations | 5 | |
| liqin | Base64 | 10 | |
| insot | XOR Properties | 15 | |
| l4t4r | Quadratic Residues | 25 | |
| Lyxchee | Modular Binomials | 80 | |
| l4t4r | Modular Inverting | 25 | |
| l4t4r | Modular Arithmetic 2 | 20 | |
| l4t4r | Modular Arithmetic 1 | 20 | |
| l4t4r | Extended GCD | 20 | |
| l4t4r | Greatest Common Divisor | 15 | |
| Ghadeer | Structure of AES | 15 | |
| banhcuon79 | Blinding Light | 120 | |
| klowjin | Hex | 5 | |
| banhcuon79 | Let's Decrypt | 80 | |
| klowjin | ASCII | 5 | |
| l4t4r | You either know, XOR you don't | 30 | |
| upstairsupstairs | Finding Flags | 2 | |
| l4t4r | Favourite byte | 20 | |
| jaylacbarnes | ASCII | 5 | |
| klowjin | Great Snakes | 3 | |
| l4t4r | XOR Properties | 15 | |
| klowjin | Finding Flags | 2 | |
| jaylacbarnes | Great Snakes | 3 | |
| jaylacbarnes | Finding Flags | 2 | |
| wjaaaaaaat | Too Honest | 50 | |
| wjaaaaaaat | Non-Interactive | 35 | |
| Enibalomo | Modular Binomials | 80 | |
| cbdavenport42 | Finding Flags | 2 | |
| Enibalomo | Adrien's Signs | 80 | |
| OlivePicker | Legendre Symbol | 35 | |
| peglycol | RSA Signatures | 25 | |
| Enibalomo | Chinese Remainder Theorem | 40 |
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