| Date | User | Challenge | Score |
| Vic144 | ProSign 3 | 100 | |
| Kaos | Modular Arithmetic 2 | 20 | |
| Maksym_Rak | Legendre Symbol | 35 | |
| Maksym_Rak | Quadratic Residues | 25 | |
| Maksym_Rak | Modular Inverting | 25 | |
| ofdeat | RSA Decryption | 20 | |
| Vic144 | Curveball | 100 | |
| Javohir | Favourite byte | 20 | |
| Maksym_Rak | Modular Arithmetic 2 | 20 | |
| Maksym_Rak | Modular Arithmetic 1 | 20 | |
| Maksym_Rak | Extended GCD | 20 | |
| Zeras | CERTainly not | 30 | |
| Maksym_Rak | Greatest Common Divisor | 15 | |
| R_O_Y | Modular Binomials | 80 | |
| ofdeat | Private Keys | 20 | |
| Javohir | XOR Properties | 15 | |
| blippity | Great Snakes | 3 | |
| Vic144 | Smooth Criminal | 60 | |
| ofdeat | Euler's Totient | 20 | |
| Zeras | Privacy-Enhanced Mail? | 25 | |
| Merci_b | Chinese Remainder Theorem | 40 | |
| ofdeat | Public Keys | 15 | |
| Javohir | XOR Starter | 10 | |
| NickName | Euler's Totient | 20 | |
| ofdeat | Modular Exponentiation | 10 | |
| blippity | Finding Flags | 2 | |
| Kaos | Modular Arithmetic 1 | 20 | |
| R_O_Y | Adrien's Signs | 80 | |
| Zeras | Modular Inverting | 25 | |
| Merci_b | Modular Square Root | 35 | |
| Zeras | Modular Arithmetic 2 | 20 | |
| ghigo | You either know, XOR you don't | 30 | |
| Javohir | Bytes and Big Integers | 10 | |
| yakhno_ny | Modular Binomials | 80 | |
| Zeras | Modular Arithmetic 1 | 20 | |
| Kaos | Extended GCD | 20 | |
| Vic144 | Montgomery's Ladder | 40 | |
| w4rf0t | Passwords as Keys | 50 | |
| yakhno_ny | Adrien's Signs | 80 | |
| yakhno_ny | Chinese Remainder Theorem | 40 | |
| catonthemoon | Bytes and Big Integers | 10 | |
| yakhno_ny | Modular Square Root | 35 | |
| w4rf0t | ECB CBC WTF | 55 | |
| NickName | Public Keys | 15 | |
| w4rf0t | Modes of Operation Starter | 15 | |
| yakhno_ny | Legendre Symbol | 35 | |
| yakhno_ny | Quadratic Residues | 25 | |
| Javohir | Base64 | 10 | |
| Vic144 | Efficient Exchange | 50 | |
| yakhno_ny | Modular Inverting | 25 |
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