| Date | User | Challenge | Score |
| sonja0817 | RSA or HMAC? Part 2 | 100 | |
| Zosia | Chinese Remainder Theorem | 40 | |
| sonja0817 | JSON in JSON | 40 | |
| Quoc130370 | An Exceptional Twisted Mind | 125 | |
| Zosia | Modular Square Root | 35 | |
| alright | ProSign 3 | 100 | |
| bluesky2113 | Lazy CBC | 60 | |
| Dar1us | Factoring | 15 | |
| mgu | Modulus Inutilis | 50 | |
| centeye | Confusion through Substitution | 25 | |
| Osama_189 | XOR Starter | 10 | |
| Dar1us | RSA Signatures | 25 | |
| NOWD | XOR Starter | 10 | |
| centeye | Round Keys | 20 | |
| Smoggy | Bean Counter | 60 | |
| PleiadesX | Private Keys | 20 | |
| PleiadesX | Euler's Totient | 20 | |
| mgu | Salty | 20 | |
| Zosia | Legendre Symbol | 35 | |
| Smoggy | Symmetry | 50 | |
| 19555712196 | Great Snakes | 3 | |
| sonja0817 | RSA or HMAC? | 35 | |
| The_Pendragon | Great Snakes | 3 | |
| 19555712196 | Finding Flags | 2 | |
| 4143 | Quadratic Residues | 25 | |
| PleiadesX | Public Keys | 15 | |
| VuiVe | Long Story Short | 60 | |
| The_Pendragon | Finding Flags | 2 | |
| sonja0817 | JWT Secrets | 25 | |
| Smoggy | Flipping Cookie | 60 | |
| sonja0817 | No Way JOSE | 20 | |
| tranthienthanh | An Exceptional Twisted Mind | 125 | |
| KZOrP4Vl | Megalomaniac 3 | 120 | |
| Present | XOR Starter | 10 | |
| wjx | RSA Signatures | 25 | |
| Zosia | Quadratic Residues | 25 | |
| sonja0817 | Token Appreciation | 5 | |
| Smoggy | ECB CBC WTF | 55 | |
| sonja0817 | JWT Sessions | 10 | |
| Smoggy | ECB Oracle | 60 | |
| Present | Bytes and Big Integers | 10 | |
| ygm_123 | Modular Exponentiation | 10 | |
| centeye | Structure of AES | 15 | |
| thisismetrying | Common Ground | 75 | |
| lehoangthi | Base64 | 10 | |
| mgu | Manyprime | 40 | |
| centeye | Resisting Bruteforce | 10 | |
| PleiadesX | Modular Exponentiation | 10 | |
| star | ASCII | 5 | |
| Smoggy | Passwords as Keys | 50 |
You are now level Current level