| Date | User | Challenge | Score |
| praneetha | Structure of AES | 15 | |
| Pkheach | Great Snakes | 3 | |
| Luchessi | Great Snakes | 3 | |
| Pkheach | Finding Flags | 2 | |
| praneetha | Keyed Permutations | 5 | |
| Luchessi | Finding Flags | 2 | |
| VxRabbit | ECB Oracle | 60 | |
| KZOrP4Vl | Bespoke Padding | 100 | |
| tranthienthanh | Moving Problems | 150 | |
| Saying | XOR Starter | 10 | |
| Saying | Bytes and Big Integers | 10 | |
| NoBirdWasHam | RSA Backdoor Viability | 175 | |
| labyrinth0 | Modular Square Root | 35 | |
| Saying | Base64 | 10 | |
| nous | Oracular Spectacular | 150 | |
| cinderblock | You either know, XOR you don't | 30 | |
| cinderblock | Favourite byte | 20 | |
| cinderblock | XOR Properties | 15 | |
| cinderblock | XOR Starter | 10 | |
| cinderblock | Bytes and Big Integers | 10 | |
| cinderblock | Base64 | 10 | |
| cinderblock | Hex | 5 | |
| cinderblock | ASCII | 5 | |
| cinderblock | Great Snakes | 3 | |
| cinderblock | Finding Flags | 2 | |
| Saying | Hex | 5 | |
| Kran | The Good, The Pad, The Ugly | 100 | |
| D3c0d3R_1337 | Gotta Go Fast | 40 | |
| JEBALL | Bean Counter | 60 | |
| JEBALL | Symmetry | 50 | |
| JEBALL | Flipping Cookie | 60 | |
| JEBALL | ECB CBC WTF | 55 | |
| JEBALL | ECB Oracle | 60 | |
| JEBALL | Passwords as Keys | 50 | |
| JEBALL | Modes of Operation Starter | 15 | |
| JEBALL | Bringing It All Together | 50 | |
| JEBALL | Diffusion through Permutation | 30 | |
| avd9 | Let's Decrypt | 80 | |
| JEBALL | Confusion through Substitution | 25 | |
| JEBALL | Round Keys | 20 | |
| JEBALL | Structure of AES | 15 | |
| JEBALL | Resisting Bruteforce | 10 | |
| JEBALL | Keyed Permutations | 5 | |
| avd9 | Signing Server | 60 | |
| nous | André Encoding | 80 | |
| nous | MDFlag | 125 | |
| nous | RSA or HMAC? Part 2 | 100 | |
| nous | Megalomaniac 1 | 100 | |
| JEBALL | You either know, XOR you don't | 30 | |
| 0xV3ctor | Finding Flags | 2 |
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