| Date | User | Challenge | Score |
| lms49 | ECB Oracle | 60 | |
| Huobase | Ticket Maestro | 200 | |
| Huobase | Ticket Maestro (CryptoHack) | 0 | |
| moystee | Point Addition | 30 | |
| mespy_505 | Great Snakes | 3 | |
| lms49 | Bean Counter | 60 | |
| mespy_505 | Finding Flags | 2 | |
| Skye12345 | Hex | 5 | |
| lms49 | Symmetry | 50 | |
| Chilhan | Extended GCD | 20 | |
| gsurace | Bean Counter | 60 | |
| gsurace | Symmetry | 50 | |
| gsurace | Flipping Cookie | 60 | |
| gsurace | ECB CBC WTF | 55 | |
| gsurace | ECB Oracle | 60 | |
| lms49 | Flipping Cookie | 60 | |
| htooakkarlwin | Montgomery's Ladder | 40 | |
| GojiLeSharpei | ASCII | 5 | |
| greyx76 | Extended GCD | 20 | |
| GojiLeSharpei | Great Snakes | 3 | |
| shwetak | Token Appreciation | 5 | |
| mat000 | Flipping Cookie | 60 | |
| GojiLeSharpei | Finding Flags | 2 | |
| moystee | Point Negation | 10 | |
| alice256 | ASCII | 5 | |
| Chilhan | Greatest Common Divisor | 15 | |
| greyx76 | Greatest Common Divisor | 15 | |
| moystee | Background Reading | 5 | |
| greyx76 | You either know, XOR you don't | 30 | |
| lms49 | ECB CBC WTF | 55 | |
| greyx76 | Favourite byte | 20 | |
| Ryanispop | Manyprime | 40 | |
| Ryanispop | Square Eyes | 35 | |
| Ryanispop | Monoprime | 30 | |
| greyx76 | XOR Properties | 15 | |
| Ryanispop | Inferius Prime | 30 | |
| Ryanispop | Factoring | 15 | |
| Ryanispop | RSA Signatures | 25 | |
| jellio04 | Lemur XOR | 40 | |
| Ryanispop | RSA Decryption | 20 | |
| CryptoBro | Modular Binomials | 80 | |
| Ryanispop | Private Keys | 20 | |
| Ryanispop | Euler's Totient | 20 | |
| Ryanispop | Public Keys | 15 | |
| greyx76 | XOR Starter | 10 | |
| wanttobethebest | From Private to Public Key LWE | 25 | |
| Ryanispop | Modular Exponentiation | 10 | |
| fjukh7872 | Crossed Wires | 100 | |
| greyx76 | Bytes and Big Integers | 10 | |
| Ryanispop | Beatboxer | 150 |
You are now level Current level