| Date | User | Challenge | Score |
| D3OX6 | Honest Verifier Zero Knowledge | 30 | |
| kiaN2C | Chinese Remainder Theorem | 40 | |
| vtytar | Proofs of Knowledge | 20 | |
| paulihno15 | Bytes and Big Integers | 10 | |
| eukidmeta | Modular Arithmetic 2 | 20 | |
| you12345 | Chinese Remainder Theorem | 40 | |
| eukidmeta | Modular Arithmetic 1 | 20 | |
| CyberMaxx | ASCII | 5 | |
| kiaN2C | Modular Square Root | 35 | |
| Warpx_25 | Modular Inverting | 25 | |
| Visitor001 | Quadratic Residues | 25 | |
| D3OX6 | Special Soundness | 25 | |
| Kayy_78y | ASCII | 5 | |
| Viobox | You either know, XOR you don't | 30 | |
| Kayy_78y | Great Snakes | 3 | |
| Kayy_78y | Finding Flags | 2 | |
| genwitt | Deriving Symmetric Keys | 40 | |
| Warpx_25 | Modular Arithmetic 2 | 20 | |
| CyberMaxx | Great Snakes | 3 | |
| CyberMaxx | Finding Flags | 2 | |
| aress | Diffusion through Permutation | 30 | |
| Visitor001 | Privacy-Enhanced Mail? | 25 | |
| rootBG | Point Addition | 30 | |
| un5h4d0w | You either know, XOR you don't | 30 | |
| Shridhar_Hi | Public Keys | 15 | |
| iamzing | XOR Starter | 10 | |
| Shridhar_Hi | Modular Exponentiation | 10 | |
| aviiiissss | Extended GCD | 20 | |
| d3v_k1r4 | Base64 | 10 | |
| 0x0n0m4d | Quadratic Residues | 25 | |
| Kae | Roll your Own | 125 | |
| 0xs1nr | CTRIME | 70 | |
| conor13rp | Encoding Challenge | 40 | |
| iamzing | Bytes and Big Integers | 10 | |
| Viobox | Favourite byte | 20 | |
| pwspog | Encoding Challenge | 40 | |
| un5h4d0w | Favourite byte | 20 | |
| PaulMcGinnis | ZKP Introduction | 5 | |
| un5h4d0w | XOR Properties | 15 | |
| ExtremCrypt | Finding Flags | 2 | |
| shishuli777 | You either know, XOR you don't | 30 | |
| remorseful_ros3 | Finding Flags | 2 | |
| vstav | Legendre Symbol | 35 | |
| DavidKrell | Chinese Remainder Theorem | 40 | |
| aviiiissss | Greatest Common Divisor | 15 | |
| pwspog | Bytes and Big Integers | 10 | |
| Viobox | XOR Properties | 15 | |
| LONG_crypro | Resisting Bruteforce | 10 | |
| themoloch | You either know, XOR you don't | 30 | |
| pwspog | Base64 | 10 |
You are now level Current level