| Date | User | Challenge | Score |
| xnb | ASCII | 5 | |
| gnomeright | SSH Keys | 35 | |
| xnb | Great Snakes | 3 | |
| xnb | Finding Flags | 2 | |
| stacksparrow4 | Smooth Criminal | 60 | |
| gnomeright | CERTainly not | 30 | |
| ericoblaza | Triple DES | 60 | |
| hakka52 | Working with Fields | 10 | |
| ericoblaza | Lazy CBC | 60 | |
| shurayz | Forbidden Fruit | 150 | |
| ericoblaza | Flipping Cookie | 60 | |
| hakka52 | Modulus Inutilis | 50 | |
| ericoblaza | ECB Oracle | 60 | |
| crystaljade | Symmetry | 50 | |
| gnomeright | Privacy-Enhanced Mail? | 25 | |
| hakka52 | Salty | 20 | |
| ericoblaza | ECB CBC WTF | 55 | |
| ericoblaza | Passwords as Keys | 50 | |
| ericoblaza | Bringing It All Together | 50 | |
| crystaljade | Flipping Cookie | 60 | |
| hakka52 | Manyprime | 40 | |
| stacksparrow4 | Montgomery's Ladder | 40 | |
| ericoblaza | Diffusion through Permutation | 30 | |
| ericoblaza | Confusion through Substitution | 25 | |
| ericoblaza | Round Keys | 20 | |
| ericoblaza | Structure of AES | 15 | |
| karlacrypto | Manyprime | 40 | |
| entheo97 | Bytes and Big Integers | 10 | |
| ericoblaza | Resisting Bruteforce | 10 | |
| ericoblaza | Keyed Permutations | 5 | |
| hakka52 | Monoprime | 30 | |
| saba | Greatest Common Divisor | 15 | |
| hakka52 | Factoring | 15 | |
| CMO2 | Round Keys | 20 | |
| entheo97 | Base64 | 10 | |
| JetFighter0256 | XOR Properties | 15 | |
| hakka52 | RSA Signatures | 25 | |
| karlacrypto | Square Eyes | 35 | |
| JetFighter0256 | XOR Starter | 10 | |
| entheo97 | Hex | 5 | |
| CMO2 | Structure of AES | 15 | |
| entheo97 | ASCII | 5 | |
| karlacrypto | Monoprime | 30 | |
| useless | No Way JOSE | 20 | |
| Neutr0nys | No Leaks | 100 | |
| entheo97 | Network Attacks | 5 | |
| gorogoro | Collider | 50 | |
| entheo97 | Great Snakes | 3 | |
| Neutr0nys | Gotta Go Fast | 40 | |
| avm | Collider | 50 |
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