| Date | User | Challenge | Score |
| agrocos | RSA Decryption | 20 | |
| paxel | You either know, XOR you don't | 30 | |
| agrocos | Private Keys | 20 | |
| Holfelder | Hex | 5 | |
| DingoRad | Structure of AES | 15 | |
| D0ri | Bytes and Big Integers | 10 | |
| agrocos | Euler's Totient | 20 | |
| agrocos | Public Keys | 15 | |
| Connie6222 | Hex | 5 | |
| agrocos | Modular Exponentiation | 10 | |
| turtur | Network Attacks | 5 | |
| Dhrub_Singh_17 | Marin's Secrets | 50 | |
| Dhrub_Singh_17 | Infinite Descent | 50 | |
| Konung_of_Larp | Legendre Symbol | 35 | |
| Dhrub_Singh_17 | Endless Emails | 150 | |
| Dhrub_Singh_17 | Everything is Still Big | 100 | |
| HoangNhoo | Smooth Criminal | 60 | |
| Dhrub_Singh_17 | Crossed Wires | 100 | |
| Dhrub_Singh_17 | Everything is Big | 70 | |
| Dhrub_Singh_17 | Modulus Inutilis | 50 | |
| Dhrub_Singh_17 | Salty | 20 | |
| Dhrub_Singh_17 | Fast Primes | 75 | |
| Dhrub_Singh_17 | Manyprime | 40 | |
| Dhrub_Singh_17 | Square Eyes | 35 | |
| Dhrub_Singh_17 | Monoprime | 30 | |
| Dhrub_Singh_17 | Inferius Prime | 30 | |
| Dhrub_Singh_17 | Factoring | 15 | |
| Dhrub_Singh_17 | RSA Signatures | 25 | |
| Holfelder | Transparency | 50 | |
| Dhrub_Singh_17 | RSA Decryption | 20 | |
| Dhrub_Singh_17 | Private Keys | 20 | |
| iremnt | Modular Binomials | 80 | |
| Dhrub_Singh_17 | Euler's Totient | 20 | |
| Dhrub_Singh_17 | Public Keys | 15 | |
| Dhrub_Singh_17 | Modular Exponentiation | 10 | |
| Dhrub_Singh_17 | Modular Binomials | 80 | |
| Dhrub_Singh_17 | Adrien's Signs | 80 | |
| Dhrub_Singh_17 | Successive Powers | 60 | |
| Dhrub_Singh_17 | Chinese Remainder Theorem | 40 | |
| Dhrub_Singh_17 | Legendre Symbol | 35 | |
| Dhrub_Singh_17 | Quadratic Residues | 25 | |
| Dhrub_Singh_17 | Modular Square Root | 35 | |
| zia_rodrigues | Finding Flags | 2 | |
| user1300 | Point Negation | 10 | |
| Dhrub_Singh_17 | Forbidden Fruit | 150 | |
| D0ri | Base64 | 10 | |
| Dhrub_Singh_17 | Paper Plane | 120 | |
| tamasj | Legendre Symbol | 35 | |
| Dhrub_Singh_17 | Beatboxer | 150 | |
| Dhrub_Singh_17 | Oracular Spectacular | 150 |
You are now level Current level