| Date | User | Challenge | Score |
| spholo | Network Attacks | 5 | |
| SUPERSUNN | RSA Decryption | 20 | |
| SMAYLA | Chinese Remainder Theorem | 40 | |
| SUPERSUNN | Private Keys | 20 | |
| bmikog | ASCII | 5 | |
| SUPERSUNN | Euler's Totient | 20 | |
| SUPERSUNN | Public Keys | 15 | |
| spholo | You either know, XOR you don't | 30 | |
| SUPERSUNN | Modular Exponentiation | 10 | |
| wollompje | Honest Verifier Zero Knowledge | 30 | |
| bmikog | Great Snakes | 3 | |
| sma9lotv | Great Snakes | 3 | |
| spholo | Favourite byte | 20 | |
| danidanidanidani | Bringing It All Together | 50 | |
| sma9lotv | Finding Flags | 2 | |
| spholo | XOR Properties | 15 | |
| xfnx | PriMeD5 | 100 | |
| bmikog | Finding Flags | 2 | |
| foidphobic | Quadratic Residues | 25 | |
| miketyson | Base64 | 10 | |
| Masquerade | Working with Fields | 10 | |
| Masquerade | Modulus Inutilis | 50 | |
| suisdavid | Special Isogenies | 30 | |
| wollompje | Special Soundness | 25 | |
| sas_t3sla | Bytes and Big Integers | 10 | |
| Fah | Finding Flags | 2 | |
| noone6879 | Modes of Operation Starter | 15 | |
| Roxanne21 | Base64 | 10 | |
| spholo | XOR Starter | 10 | |
| noone6879 | Bringing It All Together | 50 | |
| miketyson | Hex | 5 | |
| whale120 | Real Curve Crypto | 200 | |
| danidanidanidani | Diffusion through Permutation | 30 | |
| sas_t3sla | Base64 | 10 | |
| kesleryak | Confusion through Substitution | 25 | |
| xfnx | Edwards Goes Degenerate | 100 | |
| miketyson | ASCII | 5 | |
| spholo | Bytes and Big Integers | 10 | |
| sas_t3sla | Hex | 5 | |
| moe0l | ZKP Introduction | 5 | |
| spholo | Base64 | 10 | |
| MaxAzar | Bytes and Big Integers | 10 | |
| spholo | Hex | 5 | |
| spholo | ASCII | 5 | |
| DutchDopa | Legendre Symbol | 35 | |
| spholo | Great Snakes | 3 | |
| wollompje | Proofs of Knowledge | 20 | |
| sas_t3sla | ASCII | 5 | |
| danidanidanidani | Confusion through Substitution | 25 | |
| Quine | Square Eyes | 35 |
You are now level Current level