| Date | User | Challenge | Score |
| zbareq | Modular Inverting | 25 | |
| Panos_p23236 | Bringing It All Together | 50 | |
| zbareq | Modular Arithmetic 2 | 20 | |
| dkoazwlearning | Deriving Symmetric Keys | 40 | |
| AaqibMir | Bytes and Big Integers | 10 | |
| marpap19 | You either know, XOR you don't | 30 | |
| abdulgofar | Extended GCD | 20 | |
| DreadOnyx | Base64 | 10 | |
| drzejus | Non-Interactive | 35 | |
| zbareq | Modular Arithmetic 1 | 20 | |
| danielmagram | Lazy CBC | 60 | |
| temmavn | Blinding Light | 120 | |
| dionisiant | Greatest Common Divisor | 15 | |
| jerwas | Bean Counter | 60 | |
| zbareq | Extended GCD | 20 | |
| marpap19 | Favourite byte | 20 | |
| marasdk | JWT Sessions | 10 | |
| marasdk | Token Appreciation | 5 | |
| Manisha | Keyed Permutations | 5 | |
| dkoazwlearning | Computing Shared Secrets | 30 | |
| dionisiant | You either know, XOR you don't | 30 | |
| baselsadi | Parameter Injection | 60 | |
| Hrisha | Modulus Inutilis | 50 | |
| cryptoki | Greatest Common Divisor | 15 | |
| marpap19 | XOR Properties | 15 | |
| JoArg | Computing Shared Secrets | 30 | |
| dionisiant | Favourite byte | 20 | |
| Dominiminik | Export-grade | 100 | |
| emsa | Point Negation | 10 | |
| DreadOnyx | Hex | 5 | |
| marpap19 | XOR Starter | 10 | |
| zbareq | Greatest Common Divisor | 15 | |
| HKad44 | Favourite byte | 20 | |
| HKad44 | XOR Properties | 15 | |
| dionisiant | XOR Properties | 15 | |
| MrBanhMi | Fischlin Transform | 180 | |
| Dominiminik | Static Client 2 | 120 | |
| jerwas | Symmetry | 50 | |
| dionisiant | XOR Starter | 10 | |
| wasun | Base64 | 10 | |
| Despoina | Adrien's Signs | 80 | |
| zbareq | You either know, XOR you don't | 30 | |
| DreadOnyx | ASCII | 5 | |
| JoArg | Computing Public Values | 25 | |
| xth_student | Legendre Symbol | 35 | |
| dionisiant | Bytes and Big Integers | 10 | |
| DreadOnyx | Great Snakes | 3 | |
| dionisiant | Base64 | 10 | |
| baselsadi | Deriving Symmetric Keys | 40 | |
| Beentaken | Diffusion through Permutation | 30 |
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