| Date | User | Challenge | Score |
| viprorqiv | Keyed Permutations | 5 | |
| dadan | Modes of Operation Starter | 15 | |
| ANONECODER | Greatest Common Divisor | 15 | |
| dadan | Bringing It All Together | 50 | |
| fathircyy | Hex | 5 | |
| movefun | Monoprime | 30 | |
| bytenightnether | Hex | 5 | |
| cryptotube | Quadratic Residues | 25 | |
| viprorqiv | Chinese Remainder Theorem | 40 | |
| zhuce6 | XOR Starter | 10 | |
| ARM4da | Legendre Symbol | 35 | |
| dadan | Diffusion through Permutation | 30 | |
| bytenightnether | ASCII | 5 | |
| Reqsuent | Flipping Cookie | 60 | |
| zhuce6 | Bytes and Big Integers | 10 | |
| jyhoon | Public Keys | 15 | |
| dadan | Confusion through Substitution | 25 | |
| bytenightnether | Network Attacks | 5 | |
| Reqsuent | ECB CBC WTF | 55 | |
| fathircyy | ASCII | 5 | |
| Gengg_ | RSA Signatures | 25 | |
| SypherZ | Parameter Injection | 60 | |
| dadan | Round Keys | 20 | |
| mypalpal | ZKP Introduction | 5 | |
| Reqsuent | ECB Oracle | 60 | |
| zhuce6 | Base64 | 10 | |
| viprorqiv | Modular Square Root | 35 | |
| zhuce6 | Hex | 5 | |
| zhuce6 | ASCII | 5 | |
| ax4void | ASCII | 5 | |
| mypalpal | WOTS Up 2 | 90 | |
| zhuce6 | Great Snakes | 3 | |
| zhuce6 | Finding Flags | 2 | |
| ax4void | Great Snakes | 3 | |
| fathircyy | Great Snakes | 3 | |
| ax4void | Finding Flags | 2 | |
| Gengg_ | RSA Decryption | 20 | |
| yutaize | Hex | 5 | |
| yutaize | ASCII | 5 | |
| Milek192 | Hex | 5 | |
| eel123 | XOR Properties | 15 | |
| yutaize | Great Snakes | 3 | |
| yutaize | Finding Flags | 2 | |
| Jerico | Modes of Operation Starter | 15 | |
| Gengg_ | Private Keys | 20 | |
| shura356 | Roll your Own | 125 | |
| pin | Blinding Light | 120 | |
| dynhlucw | Modular Exponentiation | 10 | |
| Krill_Bill | Great Snakes | 3 | |
| Krill_Bill | Finding Flags | 2 |
You are now level Current level