| Date | User | Challenge | Score |
| Nokoz | Base64 | 10 | |
| alaaabdu | Modulus Inutilis | 50 | |
| alaaabdu | Salty | 20 | |
| Arich | Finding Flags | 2 | |
| alaaabdu | Manyprime | 40 | |
| Axla | XOR Properties | 15 | |
| alaaabdu | Square Eyes | 35 | |
| alaaabdu | Monoprime | 30 | |
| alaaabdu | Inferius Prime | 30 | |
| Tiger06 | Great Snakes | 3 | |
| alaaabdu | Factoring | 15 | |
| alaaabdu | RSA Signatures | 25 | |
| alaaabdu | RSA Decryption | 20 | |
| alaaabdu | Private Keys | 20 | |
| alaaabdu | Euler's Totient | 20 | |
| Tiger06 | Finding Flags | 2 | |
| alaaabdu | Public Keys | 15 | |
| alaaabdu | Modular Exponentiation | 10 | |
| alaaabdu | Beatboxer | 150 | |
| alaaabdu | Forbidden Fruit | 150 | |
| alaaabdu | Paper Plane | 120 | |
| alaaabdu | Oracular Spectacular | 150 | |
| alaaabdu | The Good, The Pad, The Ugly | 100 | |
| alaaabdu | Pad Thai | 80 | |
| alaaabdu | Oh SNAP | 120 | |
| TeraP | You either know, XOR you don't | 30 | |
| alaaabdu | Dancing Queen | 120 | |
| alaaabdu | Stream of Consciousness | 80 | |
| alaaabdu | Logon Zero | 80 | |
| alaaabdu | CTRIME | 70 | |
| alaaabdu | Bean Counter | 60 | |
| DavidTruong | Twin Keys | 100 | |
| Nokoz | Hex | 5 | |
| alaaabdu | Symmetry | 50 | |
| alaaabdu | Triple DES | 60 | |
| alaaabdu | Lazy CBC | 60 | |
| alaaabdu | Flipping Cookie | 60 | |
| alaaabdu | ECB Oracle | 60 | |
| alaaabdu | ECB CBC WTF | 55 | |
| alaaabdu | Passwords as Keys | 50 | |
| alaaabdu | Modes of Operation Starter | 15 | |
| alaaabdu | Bringing It All Together | 50 | |
| alaaabdu | Diffusion through Permutation | 30 | |
| alaaabdu | Confusion through Substitution | 25 | |
| alaaabdu | Round Keys | 20 | |
| ImnKan | Greatest Common Divisor | 15 | |
| alaaabdu | Structure of AES | 15 | |
| alaaabdu | Resisting Bruteforce | 10 | |
| alaaabdu | Keyed Permutations | 5 | |
| W4t3r_m3Sc0r | XOR Starter | 10 |
You are now level Current level