| Date | User | Challenge | Score |
| Hamoud | Passwords as Keys | 50 | |
| AboB7r | Base64 | 10 | |
| Hamoud | Modes of Operation Starter | 15 | |
| MhmdEbead | Favourite byte | 20 | |
| AboB7r | Hex | 5 | |
| kattysanchez | RSA Decryption | 20 | |
| havia | ASCII | 5 | |
| Hamoud | Bringing It All Together | 50 | |
| DarenB | ASCII | 5 | |
| Hamoud | Diffusion through Permutation | 30 | |
| Hamoud | Confusion through Substitution | 25 | |
| Aws_Fahd_abdo | Cofactor Cofantasy | 150 | |
| Hamoud | Round Keys | 20 | |
| DarenB | Great Snakes | 3 | |
| Hamoud | Structure of AES | 15 | |
| AboB7r | ASCII | 5 | |
| DarenB | Finding Flags | 2 | |
| irwan | XOR Properties | 15 | |
| desxtra | ASCII | 5 | |
| monk000 | Resisting Bruteforce | 10 | |
| havia | Great Snakes | 3 | |
| jablonskim | Bespoke Padding | 100 | |
| monk000 | Keyed Permutations | 5 | |
| 1502dthw | Structure of AES | 15 | |
| Khevin07k | You either know, XOR you don't | 30 | |
| Aws_Fahd_abdo | Roll your Own | 125 | |
| desxtra | Great Snakes | 3 | |
| Aws_Fahd_abdo | An Evil Twisted Mind | 175 | |
| flooeg | RSA Signatures | 25 | |
| desxtra | Finding Flags | 2 | |
| havia | Finding Flags | 2 | |
| jablonskim | RSA Backdoor Viability | 175 | |
| AboB7r | Great Snakes | 3 | |
| AboB7r | Finding Flags | 2 | |
| tranchsanto | 2020 (TETCTF) | 0 | |
| Hamoud | RSA Signatures | 25 | |
| 0_0A | Adrien's Signs | 80 | |
| jablonskim | Ron was Wrong, Whit is Right | 90 | |
| MohammedBkar | RSA Decryption | 20 | |
| jablonskim | Fast Primes | 75 | |
| MohammedBkar | Private Keys | 20 | |
| MohammedBkar | Euler's Totient | 20 | |
| 1502dthw | Resisting Bruteforce | 10 | |
| MohammedBkar | Public Keys | 15 | |
| gll | Network Attacks | 5 | |
| MohammedBkar | Modular Exponentiation | 10 | |
| lolo_sec | Diffusion through Permutation | 30 | |
| lolo_sec | Confusion through Substitution | 25 | |
| Khevin07k | Favourite byte | 20 | |
| jablonskim | The Matrix | 75 |
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