| Date | User | Challenge | Score |
| tobira | Modulus Inutilis | 50 | |
| Scorpio47 | XOR Properties | 15 | |
| Mage | Noise Cheap | 90 | |
| tobira | Salty | 20 | |
| M4DD0C74 | Exceptional Curves | 100 | |
| Mage | Missing Modulus | 80 | |
| Scorpio47 | XOR Starter | 10 | |
| Scorpio47 | Bytes and Big Integers | 10 | |
| Mage | Nativity | 60 | |
| pasichko | Euler's Totient | 20 | |
| pasichko | Public Keys | 15 | |
| pasichko | Modular Exponentiation | 10 | |
| hayzer | Adrien's Signs | 80 | |
| madelino | ECB Oracle | 60 | |
| JKawala | Modular Binomials | 80 | |
| elesquina | Passwords as Keys | 50 | |
| JKawala | Adrien's Signs | 80 | |
| ayoub04 | Marin's Secrets | 50 | |
| temidojo | XOR Starter | 10 | |
| uxxct | Modulus Inutilis | 50 | |
| keskispace | Modular Binomials | 80 | |
| vsetti | Monoprime | 30 | |
| trendcrusher | Pairing-Based Cryptography | 50 | |
| JKawala | Chinese Remainder Theorem | 40 | |
| trendcrusher | Mister Saplin's Preview | 80 | |
| JKawala | Modular Square Root | 35 | |
| JKawala | Legendre Symbol | 35 | |
| trendcrusher | Couples | 100 | |
| Aslan_256 | Non-Interactive | 35 | |
| JKawala | Quadratic Residues | 25 | |
| ayoub04 | RSA Backdoor Viability | 175 | |
| JKawala | Modular Inverting | 25 | |
| JKawala | Modular Arithmetic 2 | 20 | |
| uxxct | Salty | 20 | |
| JKawala | Modular Arithmetic 1 | 20 | |
| JKawala | Extended GCD | 20 | |
| JKawala | Greatest Common Divisor | 15 | |
| JKawala | You either know, XOR you don't | 30 | |
| ispo | What's a Lattice? | 40 | |
| JKawala | Favourite byte | 20 | |
| cryptohacker_101 | Greatest Common Divisor | 15 | |
| JKawala | XOR Properties | 15 | |
| JKawala | XOR Starter | 10 | |
| JKawala | Bytes and Big Integers | 10 | |
| uxxct | Manyprime | 40 | |
| ispo | Gram Schmidt | 30 | |
| elesquina | Modes of Operation Starter | 15 | |
| JKawala | Base64 | 10 | |
| theCrow | Base64 | 10 | |
| cryptohacker_101 | You either know, XOR you don't | 30 |
You are now level Current level