| Date | User | Challenge | Score |
| hermann_Fotso | Round Keys | 20 | |
| cryptohackerman | You either know, XOR you don't | 30 | |
| artio90 | Private Keys | 20 | |
| MarioDarco | Forbidden Fruit | 150 | |
| aichaguemir | You either know, XOR you don't | 30 | |
| Justice | Token Appreciation | 5 | |
| aichaguemir | Favourite byte | 20 | |
| Knic | Modular Binomials | 80 | |
| aichaguemir | XOR Properties | 15 | |
| Alex5c | Favourite byte | 20 | |
| kauafelipe10 | You either know, XOR you don't | 30 | |
| cryptohackerman | Favourite byte | 20 | |
| Mihafil746 | ECB Oracle | 60 | |
| Alex5c | XOR Properties | 15 | |
| kauafelipe10 | Favourite byte | 20 | |
| kauafelipe10 | XOR Properties | 15 | |
| kauafelipe10 | XOR Starter | 10 | |
| kauafelipe10 | Bytes and Big Integers | 10 | |
| ZuzannaPW | Jack's Birthday Confusion | 30 | |
| kauafelipe10 | Base64 | 10 | |
| kauafelipe10 | Hex | 5 | |
| kauafelipe10 | ASCII | 5 | |
| artio90 | Euler's Totient | 20 | |
| ZuzannaPW | Jack's Birthday Hash | 20 | |
| kauafelipe10 | Great Snakes | 3 | |
| cryptohackerman | XOR Properties | 15 | |
| ispo | Marin's Secrets | 50 | |
| OnFireTurki | Everything is Big | 70 | |
| ovp9 | Finding Flags | 2 | |
| cryptohackerman | XOR Starter | 10 | |
| Aline123 | Diffusion through Permutation | 30 | |
| OnFireTurki | Square Eyes | 35 | |
| MatWoj99 | Real Eisenstein | 150 | |
| gsl60 | Export-grade | 100 | |
| cryptohackerman | Bytes and Big Integers | 10 | |
| Alex5c | XOR Starter | 10 | |
| kauafelipe10 | Finding Flags | 2 | |
| artio90 | Public Keys | 15 | |
| gsl60 | Parameter Injection | 60 | |
| Atticus_Yong | Modular Inverting | 25 | |
| cryptohackerman | Base64 | 10 | |
| TheodoreW5 | Exceptional Curves | 100 | |
| is4ac | Favourite byte | 20 | |
| gsl60 | Deriving Symmetric Keys | 40 | |
| sharkg07 | Base64 | 10 | |
| OnFireTurki | Generators of Groups | 20 | |
| is4ac | XOR Properties | 15 | |
| sharkg07 | Hex | 5 | |
| OnFireTurki | Working with Fields | 10 | |
| Keerthan_V | XOR Starter | 10 |
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