| Date | User | Challenge | Score |
| Aris | Modular Inverting | 25 | |
| Jaxbent | Greatest Common Divisor | 15 | |
| 0perness | Hex | 5 | |
| Aris | Modular Arithmetic 2 | 20 | |
| Jaxbent | You either know, XOR you don't | 30 | |
| no06 | RSA Decryption | 20 | |
| Jaxbent | Favourite byte | 20 | |
| no06 | Private Keys | 20 | |
| no06 | Euler's Totient | 20 | |
| Jaxbent | XOR Properties | 15 | |
| no06 | Public Keys | 15 | |
| no06 | Modular Exponentiation | 10 | |
| no06 | Modular Binomials | 80 | |
| no06 | Adrien's Signs | 80 | |
| Aris | Modular Arithmetic 1 | 20 | |
| Jaxbent | XOR Starter | 10 | |
| christianjosephs | Extended GCD | 20 | |
| Jaxbent | Bytes and Big Integers | 10 | |
| Knic | Broken RSA | 100 | |
| no06 | Chinese Remainder Theorem | 40 | |
| no06 | Modular Square Root | 35 | |
| Jaxbent | Base64 | 10 | |
| no06 | Legendre Symbol | 35 | |
| christianjosephs | Greatest Common Divisor | 15 | |
| Jaxbent | Hex | 5 | |
| christianjosephs | You either know, XOR you don't | 30 | |
| christianjosephs | Favourite byte | 20 | |
| Aris | Greatest Common Divisor | 15 | |
| Jaxbent | ASCII | 5 | |
| Jaxbent | Great Snakes | 3 | |
| Jaxbent | Finding Flags | 2 | |
| ion9368 | Legendre Symbol | 35 | |
| eduardoLombardo | Public Keys | 15 | |
| eduardoLombardo | RSA Decryption | 20 | |
| eduardoLombardo | Private Keys | 20 | |
| eduardoLombardo | Euler's Totient | 20 | |
| eduardoLombardo | Modular Exponentiation | 10 | |
| christianjosephs | XOR Properties | 15 | |
| Alex5c | Lemur XOR | 40 | |
| ahmednour1 | ASCII | 5 | |
| aichaguemir | Lemur XOR | 40 | |
| mitayam722 | Confusion through Substitution | 25 | |
| Keerthan_V | Favourite byte | 20 | |
| Alex5c | You either know, XOR you don't | 30 | |
| mitayam722 | Resisting Bruteforce | 10 | |
| mitayam722 | Keyed Permutations | 5 | |
| B00177179 | Deriving Symmetric Keys | 40 | |
| ahmednour1 | Great Snakes | 3 | |
| Azekh | Base64 | 10 | |
| ahmednour1 | Finding Flags | 2 |
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