| Date | User | Challenge | Score |
| Controlplusz | XOR Properties | 15 | |
| whx | Hex | 5 | |
| jasonbourne | Deriving Symmetric Keys | 40 | |
| syahmiani1 | Script Kiddie | 70 | |
| KleinFool | Bytes and Big Integers | 10 | |
| whx | ASCII | 5 | |
| neko666 | Hex | 5 | |
| Leokerem7 | Modular Arithmetic 2 | 20 | |
| manvin_chager | RSA Signatures | 25 | |
| syahmiani1 | Static Client 2 | 120 | |
| whx | Great Snakes | 3 | |
| neko666 | ASCII | 5 | |
| furkancan | Finding Flags | 2 | |
| EmmanuelGoldberg | Base64 | 10 | |
| jasonbourne | Computing Shared Secrets | 30 | |
| EmmanuelGoldberg | Hex | 5 | |
| whx | Finding Flags | 2 | |
| EmmanuelGoldberg | ASCII | 5 | |
| Femiinnn | Euler's Totient | 20 | |
| neko666 | Great Snakes | 3 | |
| neko666 | Finding Flags | 2 | |
| syahmiani1 | Additive | 70 | |
| KleinFool | Base64 | 10 | |
| syahmiani1 | Static Client | 100 | |
| Asuna | Hex | 5 | |
| Moi3032 | Resisting Bruteforce | 10 | |
| KleinFool | Hex | 5 | |
| Shinerone | Flipping Cookie | 60 | |
| hsan | Bytes and Big Integers | 10 | |
| Leokerem7 | Modular Arithmetic 1 | 20 | |
| m0NIX | Modular Inverting | 25 | |
| Asuna | ASCII | 5 | |
| Calokwaz | Everything is Big | 70 | |
| novy7733 | Great Snakes | 3 | |
| Zyxsa | Bytes and Big Integers | 10 | |
| m0NIX | Modular Arithmetic 2 | 20 | |
| Moi3032 | Keyed Permutations | 5 | |
| m0NIX | Modular Arithmetic 1 | 20 | |
| syahmiani1 | Export-grade | 100 | |
| basilmathai96 | Resisting Bruteforce | 10 | |
| syahmiani1 | Parameter Injection | 60 | |
| Asuna | Great Snakes | 3 | |
| manvin_chager | RSA Decryption | 20 | |
| KleinFool | ASCII | 5 | |
| m0NIX | Extended GCD | 20 | |
| Gh0stSm0ke | XOR Starter | 10 | |
| basilmathai96 | Keyed Permutations | 5 | |
| UltraDuck | Point Negation | 10 | |
| fenrosys | Cofactor Cofantasy | 150 | |
| syahmiani1 | Deriving Symmetric Keys | 40 |
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