| Date | User | Challenge | Score |
| Alee | Bringing It All Together | 50 | |
| junho | ECB CBC WTF | 55 | |
| Alee | Diffusion through Permutation | 30 | |
| Alee | Confusion through Substitution | 25 | |
| kay240208 | Greatest Common Divisor | 15 | |
| Alee | Round Keys | 20 | |
| Alee | Structure of AES | 15 | |
| Alee | Resisting Bruteforce | 10 | |
| Alee | Keyed Permutations | 5 | |
| Alee | Modular Binomials | 80 | |
| kay240208 | Network Attacks | 5 | |
| chrisfox | You either know, XOR you don't | 30 | |
| Alee | Adrien's Signs | 80 | |
| Nunya777 | XOR Properties | 15 | |
| Alee | Chinese Remainder Theorem | 40 | |
| Alee | Modular Square Root | 35 | |
| Alee | Legendre Symbol | 35 | |
| Alee | Quadratic Residues | 25 | |
| Alee | Modular Inverting | 25 | |
| Alee | Modular Arithmetic 2 | 20 | |
| Laniakea24 | Bringing It All Together | 50 | |
| l5chiin | Hex | 5 | |
| Ronny0115ulop | You either know, XOR you don't | 30 | |
| Falasi | ASCII | 5 | |
| moi_c_sam | Parameter Injection | 60 | |
| l5chiin | ASCII | 5 | |
| l5chiin | Great Snakes | 3 | |
| chrisfox | Favourite byte | 20 | |
| hiabao | You either know, XOR you don't | 30 | |
| chrisfox | XOR Properties | 15 | |
| Falasi | Great Snakes | 3 | |
| chrisfox | XOR Starter | 10 | |
| Falasi | Finding Flags | 2 | |
| hiabao | Favourite byte | 20 | |
| brew | Jack's Birthday Hash | 20 | |
| Laniakea24 | Diffusion through Permutation | 30 | |
| hiabao | XOR Properties | 15 | |
| emiljae | Base64 | 10 | |
| chrisfox | Bytes and Big Integers | 10 | |
| Laniakea24 | Confusion through Substitution | 25 | |
| l5chiin | Finding Flags | 2 | |
| chrisfox | Base64 | 10 | |
| chrisfox | Hex | 5 | |
| emiljae | Hex | 5 | |
| junho | Passwords as Keys | 50 | |
| yr81 | Marin's Secrets | 50 | |
| chrisfox | ASCII | 5 | |
| chrisfox | Great Snakes | 3 | |
| chrisfox | Finding Flags | 2 | |
| Laniakea24 | Round Keys | 20 |
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