| Date | User | Challenge | Score |
| moizkhan1408 | RSA Decryption | 20 | |
| moizkhan1408 | Private Keys | 20 | |
| moizkhan1408 | Euler's Totient | 20 | |
| ucancallmesully | Finding Flags | 2 | |
| moizkhan1408 | Public Keys | 15 | |
| dwpnt | Bytes and Big Integers | 10 | |
| MF47 | XOR Properties | 15 | |
| kamilsan | Gaussian Reduction | 50 | |
| spartan8806 | André Encoding | 80 | |
| moizkhan1408 | Modular Exponentiation | 10 | |
| kamilsan | Double and Broken | 50 | |
| dwpnt | Base64 | 10 | |
| hack_use_math | Working with Fields | 10 | |
| hack_use_math | Modulus Inutilis | 50 | |
| hack_use_math | Salty | 20 | |
| galchapman | Triple DES | 60 | |
| hack_use_math | Manyprime | 40 | |
| dwpnt | Hex | 5 | |
| grizzzer | Structure of AES | 15 | |
| dutan | ASCII | 5 | |
| dutan | Great Snakes | 3 | |
| hack_use_math | Monoprime | 30 | |
| ciberdef | Base64 | 10 | |
| ciberdef | Hex | 5 | |
| linusechka | Finding Flags | 2 | |
| hack_use_math | Factoring | 15 | |
| dutan | Finding Flags | 2 | |
| hack_use_math | RSA Signatures | 25 | |
| grizzzer | Resisting Bruteforce | 10 | |
| galchapman | Bean Counter | 60 | |
| Alon9400 | Private Keys | 20 | |
| Anis_1916 | Great Snakes | 3 | |
| Anis_1916 | Finding Flags | 2 | |
| grizzzer | Keyed Permutations | 5 | |
| ciberdef | ASCII | 5 | |
| Lychee_Doggo | Modular Arithmetic 2 | 20 | |
| hack_use_math | RSA Decryption | 20 | |
| hack_use_math | Private Keys | 20 | |
| Franker | ASCII | 5 | |
| hack_use_math | Euler's Totient | 20 | |
| hack_use_math | Public Keys | 15 | |
| hack_use_math | Modular Exponentiation | 10 | |
| Lychee_Doggo | Modular Arithmetic 1 | 20 | |
| Franker | Great Snakes | 3 | |
| grizzzer | Modular Binomials | 80 | |
| ciberdef | Great Snakes | 3 | |
| Lychee_Doggo | Extended GCD | 20 | |
| ciberdef | Finding Flags | 2 | |
| tomichou | Bytes and Big Integers | 10 | |
| AaronCrighton | Paper Plane | 120 |
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