| Date | User | Challenge | Score |
| hamza8520 | XOR Starter | 10 | |
| blackade | Diffusion through Permutation | 30 | |
| CalixBlues | Hex | 5 | |
| YGUY | Modulus Inutilis | 50 | |
| alexandros | RSA Signatures | 25 | |
| Aparaititos | Modular Binomials | 80 | |
| alexandros | RSA Decryption | 20 | |
| YGUY | Salty | 20 | |
| k7 | Base64 | 10 | |
| hamza8520 | Bytes and Big Integers | 10 | |
| k7 | Hex | 5 | |
| alexandros | Private Keys | 20 | |
| Capitan_Grizzly | Hex | 5 | |
| alexandros | Euler's Totient | 20 | |
| alexandros | Public Keys | 15 | |
| Capitan_Grizzly | ASCII | 5 | |
| alexandros | Modular Exponentiation | 10 | |
| CalixBlues | ASCII | 5 | |
| LvKNnT | Megalomaniac 3 | 120 | |
| Aparaititos | Adrien's Signs | 80 | |
| alexandros | Adrien's Signs | 80 | |
| CalixBlues | Great Snakes | 3 | |
| CalixBlues | Finding Flags | 2 | |
| Faisal92 | Gaussian Reduction | 50 | |
| hayzer | Computing Public Values | 25 | |
| Faisal92 | What's a Lattice? | 40 | |
| hayzer | Generators of Groups | 20 | |
| hayzer | Working with Fields | 10 | |
| ispo | Edwards Goes Degenerate | 100 | |
| TheRealMiKi | Base64 | 10 | |
| hayzer | Modulus Inutilis | 50 | |
| Yoru_001 | Round Keys | 20 | |
| TheRealMiKi | Hex | 5 | |
| jacbop | You either know, XOR you don't | 30 | |
| mikuleci | JWT Sessions | 10 | |
| sillyseal001 | Finding Flags | 2 | |
| TheRealMiKi | ASCII | 5 | |
| mikuleci | Token Appreciation | 5 | |
| TheRealMiKi | Great Snakes | 3 | |
| TheRealMiKi | Finding Flags | 2 | |
| helent | Greatest Common Divisor | 15 | |
| Yoru_001 | Structure of AES | 15 | |
| jacbop | Favourite byte | 20 | |
| jacbop | XOR Properties | 15 | |
| TheRJnator | Base64 | 10 | |
| TheRJnator | Hex | 5 | |
| Lucas_Dr4c0 | Hex | 5 | |
| jacbop | XOR Starter | 10 | |
| JogiCrypto | ASCII | 5 | |
| TheRJnator | ASCII | 5 |
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