| Date | User | Challenge | Score |
| zinfroy | Base64 | 10 | |
| kings | XOR Properties | 15 | |
| kian_mohammadita | Public Keys | 15 | |
| kian_mohammadita | Modular Exponentiation | 10 | |
| Technomanicat | Monoprime | 30 | |
| Technomanicat | Factoring | 15 | |
| Ejar | ASCII | 5 | |
| Ejar | Great Snakes | 3 | |
| windylight1704 | Greatest Common Divisor | 15 | |
| Ejar | Finding Flags | 2 | |
| rkuzan | Hex | 5 | |
| MHW | Keyed Permutations | 5 | |
| CutRaNgoai | Modular Square Root | 35 | |
| striving | Rhetorical Oracle | 100 | |
| illuminate0221 | ECB Oracle | 60 | |
| KannaDGrimReaper | Greatest Common Divisor | 15 | |
| rahmo1234 | You either know, XOR you don't | 30 | |
| unknown_02 | Finding Flags | 2 | |
| rahmo1234 | Favourite byte | 20 | |
| AlvinKyalo | Export-grade | 100 | |
| HeinHtet | ASCII | 5 | |
| rahmo1234 | XOR Properties | 15 | |
| jasonbourne | Modulus Inutilis | 50 | |
| AlvinKyalo | Parameter Injection | 60 | |
| windylight1704 | You either know, XOR you don't | 30 | |
| nyetto | Finding Flags | 2 | |
| striving | Beatboxer | 150 | |
| HeinHtet | Great Snakes | 3 | |
| Kran | Efficient Exchange | 50 | |
| rahmo1234 | XOR Starter | 10 | |
| HeinHtet | Finding Flags | 2 | |
| AlvinKyalo | Deriving Symmetric Keys | 40 | |
| striving | Bad Temper 2 | 150 | |
| AlvinKyalo | Computing Shared Secrets | 30 | |
| AlvinKyalo | Computing Public Values | 25 | |
| AlvinKyalo | Generators of Groups | 20 | |
| AlvinKyalo | Working with Fields | 10 | |
| AlvinKyalo | Modulus Inutilis | 50 | |
| AlvinKyalo | Salty | 20 | |
| AlvinKyalo | Manyprime | 40 | |
| AlvinKyalo | Monoprime | 30 | |
| striving | Bad Temper | 130 | |
| miloud | Resisting Bruteforce | 10 | |
| AlvinKyalo | Factoring | 15 | |
| mathers79 | XOR Starter | 10 | |
| rahmo1234 | Bytes and Big Integers | 10 | |
| nrrm | Finding Flags | 2 | |
| Kran | Curves and Logs | 40 | |
| Technomanicat | RSA Signatures | 25 | |
| rahmo1234 | Base64 | 10 |
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