| Date | User | Challenge | Score |
| Fikhtengoltz | Quadratic Residues | 25 | |
| tortoiseseadonut | Manyprime | 40 | |
| Moreno_Mozza_P | CTRIME | 70 | |
| Moreno_Mozza_P | Bean Counter | 60 | |
| DarkDragon_sec | Greatest Common Divisor | 15 | |
| Moreno_Mozza_P | Symmetry | 50 | |
| lizsikuku | Adrien's Signs | 80 | |
| Moreno_Mozza_P | Triple DES | 60 | |
| zerouser | JWT Sessions | 10 | |
| Moreno_Mozza_P | Lazy CBC | 60 | |
| zerouser | Token Appreciation | 5 | |
| kyalo | Greatest Common Divisor | 15 | |
| blesingsung | ZKP Introduction | 5 | |
| Fhriysf | Deriving Symmetric Keys | 40 | |
| zafa | Bytes and Big Integers | 10 | |
| Moreno_Mozza_P | Flipping Cookie | 60 | |
| kamil87 | Quadratic Residues | 25 | |
| Fhriysf | Computing Shared Secrets | 30 | |
| Fikhtengoltz | Modular Inverting | 25 | |
| kamil87 | Modular Inverting | 25 | |
| kamil87 | Modular Arithmetic 2 | 20 | |
| lizsikuku | Chinese Remainder Theorem | 40 | |
| Fikhtengoltz | Modular Arithmetic 2 | 20 | |
| zafa | Base64 | 10 | |
| kamil87 | Modular Arithmetic 1 | 20 | |
| kamil87 | Extended GCD | 20 | |
| kamil87 | Greatest Common Divisor | 15 | |
| kamil87 | You either know, XOR you don't | 30 | |
| DeViator | Modular Arithmetic 1 | 20 | |
| Moreno_Mozza_P | ECB Oracle | 60 | |
| kamil87 | Favourite byte | 20 | |
| Ky_rie12 | Point Addition | 30 | |
| kamil87 | XOR Properties | 15 | |
| Ky_rie12 | Point Negation | 10 | |
| kamil87 | XOR Starter | 10 | |
| Ky_rie12 | Background Reading | 5 | |
| lizsikuku | Modular Square Root | 35 | |
| kamil87 | Bytes and Big Integers | 10 | |
| kamil87 | Base64 | 10 | |
| kamil87 | Hex | 5 | |
| kamil87 | ASCII | 5 | |
| Moreno_Mozza_P | ECB CBC WTF | 55 | |
| kamil87 | Great Snakes | 3 | |
| Moreno_Mozza_P | Passwords as Keys | 50 | |
| Kiograh_ | Structure of AES | 15 | |
| tortoiseseadonut | Monoprime | 30 | |
| reniee_7 | Finding Flags | 2 | |
| Moreno_Mozza_P | Modes of Operation Starter | 15 | |
| Moreno_Mozza_P | Bringing It All Together | 50 | |
| tortoiseseadonut | Factoring | 15 |
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