| Date | User | Challenge | Score |
| funday | Broken RSA | 100 | |
| AZZ912 | Transparency | 50 | |
| Hopkins | Finding Flags | 2 | |
| drakos | XOR Starter | 10 | |
| Oswald | unrandom DSA (HackTM CTF) | 0 | |
| bengo | Factoring | 15 | |
| Kalyan_buggy | Great Snakes | 3 | |
| kathleenah | Favourite byte | 20 | |
| xsudo | ASCII | 5 | |
| AZZ912 | SSH Keys | 35 | |
| Kalyan_buggy | Finding Flags | 2 | |
| nashariell | Finding Flags | 2 | |
| AZZ912 | CERTainly not | 30 | |
| AZZ912 | Privacy-Enhanced Mail? | 25 | |
| bengo | RSA Signatures | 25 | |
| AZZ912 | Lemur XOR | 40 | |
| xsudo | Great Snakes | 3 | |
| Oswald | broken oracle (HackTM CTF) | 0 | |
| AZZ912 | Encoding Challenge | 40 | |
| kathleenah | XOR Properties | 15 | |
| pmikus203 | Deriving Symmetric Keys | 40 | |
| xsudo | Finding Flags | 2 | |
| moritzraho | Deriving Symmetric Keys | 40 | |
| drakos | Bytes and Big Integers | 10 | |
| AZZ912 | Network Attacks | 5 | |
| Endless_69 | Base64 | 10 | |
| Oswald | Authentification 2 (Breizh CTF) | 0 | |
| Oswald | Authentification 1 (Breizh CTF) | 0 | |
| ItakawaM | Greatest Common Divisor | 15 | |
| catarinalima1304 | Computing Public Values | 25 | |
| AZZ912 | Moving Problems | 150 | |
| mrym | ASCII | 5 | |
| runofmylive | Great Snakes | 3 | |
| mrym | Great Snakes | 3 | |
| drakos | Base64 | 10 | |
| AZZ912 | ProSign 3 | 100 | |
| pmikus203 | Computing Shared Secrets | 30 | |
| Amro_Hussein | LWE High Bits Message | 15 | |
| ajgc1 | Deriving Symmetric Keys | 40 | |
| kathleenah | XOR Starter | 10 | |
| drakos | Hex | 5 | |
| pmikus203 | Computing Public Values | 25 | |
| kathleenah | Bytes and Big Integers | 10 | |
| mistx0 | Resisting Bruteforce | 10 | |
| miguelborges2206 | Deriving Symmetric Keys | 40 | |
| mistx0 | Keyed Permutations | 5 | |
| AZZ912 | Curveball | 100 | |
| bengo | RSA Decryption | 20 | |
| mrym | Finding Flags | 2 | |
| runofmylive | Finding Flags | 2 |
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