| Date | User | Challenge | Score |
| Ness2626 | ECB CBC WTF | 55 | |
| jamesmartinfendy | You either know, XOR you don't | 30 | |
| apep | Great Snakes | 3 | |
| Fafer | XOR Starter | 10 | |
| Janarthanan | Hex | 5 | |
| x344x | Base64 | 10 | |
| jamesmartinfendy | Favourite byte | 20 | |
| kenari | Bytes and Big Integers | 10 | |
| gulliver | Ellipse Curve Cryptography | 125 | |
| x344x | Hex | 5 | |
| jamesmartinfendy | XOR Properties | 15 | |
| Htet | Working with Fields | 10 | |
| x344x | ASCII | 5 | |
| x344x | Great Snakes | 3 | |
| x344x | Finding Flags | 2 | |
| abdelrhman_islam | XOR Starter | 10 | |
| kenari | Base64 | 10 | |
| kenari | Hex | 5 | |
| Htet | Quadratic Residues | 25 | |
| kenari | ASCII | 5 | |
| Hungdeptrai123 | Extended GCD | 20 | |
| kenari | Great Snakes | 3 | |
| kenari | Finding Flags | 2 | |
| vibehutao | Base64 | 10 | |
| 6876h9 | ProSign 3 | 100 | |
| apep | Finding Flags | 2 | |
| Fafer | Bytes and Big Integers | 10 | |
| vibehutao | Hex | 5 | |
| vibehutao | ASCII | 5 | |
| vibehutao | Great Snakes | 3 | |
| vibehutao | Finding Flags | 2 | |
| PXD02 | Everything is Big | 70 | |
| abdelrhman_islam | Bytes and Big Integers | 10 | |
| Fafer | Base64 | 10 | |
| l3th4l | Bespoke Padding | 100 | |
| PXD02 | Modulus Inutilis | 50 | |
| pc417 | Lazy CBC | 60 | |
| Fafer | Hex | 5 | |
| kurumi_11 | Chinese Remainder Theorem | 40 | |
| Fafer | ASCII | 5 | |
| Fafer | Great Snakes | 3 | |
| Fafer | Finding Flags | 2 | |
| NearXa | An Evil Twisted Mind | 175 | |
| iubiub | Base64 | 10 | |
| rambousek | XOR Starter | 10 | |
| Shriya_Arun | Curveball | 100 | |
| iubiub | Hex | 5 | |
| iubiub | ASCII | 5 | |
| iubiub | Great Snakes | 3 | |
| iubiub | Finding Flags | 2 |
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