| Date | User | Challenge | Score |
| DavidKrell | Legendre Symbol | 35 | |
| 4rg0 | Working with Fields | 10 | |
| SMBITHI | Deriving Symmetric Keys | 40 | |
| 4rg0 | Modulus Inutilis | 50 | |
| Dmess | Great Snakes | 3 | |
| Dmess | Finding Flags | 2 | |
| SMBITHI | Computing Shared Secrets | 30 | |
| SMBITHI | Computing Public Values | 25 | |
| SMBITHI | Generators of Groups | 20 | |
| hanuta | Finding Flags | 2 | |
| SMBITHI | Working with Fields | 10 | |
| SMBITHI | Modulus Inutilis | 50 | |
| Dgcg | Triple DES | 60 | |
| s0jaku | Bytes and Big Integers | 10 | |
| cyk0sure | Everything is Big | 70 | |
| 0x0n0m4d | Modular Inverting | 25 | |
| s0jaku | Base64 | 10 | |
| SMBITHI | Salty | 20 | |
| s0jaku | Hex | 5 | |
| s0jaku | ASCII | 5 | |
| g3k1 | Megalomaniac 3 | 120 | |
| g3k1 | Megalomaniac 2 | 120 | |
| g3k1 | Megalomaniac 1 | 100 | |
| g3k1 | Decrypting TLS 1.2 | 30 | |
| 4rg0 | Salty | 20 | |
| g3k1 | Authenticated Handshake | 40 | |
| g3k1 | Decrypting TLS 1.3 | 35 | |
| g3k1 | Saying Hello | 20 | |
| un5h4d0w | XOR Starter | 10 | |
| g3k1 | TLS Handshake | 15 | |
| whiterose0x666 | Modular Arithmetic 2 | 20 | |
| g3k1 | Sharks on the Wire | 10 | |
| g3k1 | Secure Protocols | 5 | |
| g3k1 | RSA or HMAC? Part 2 | 100 | |
| g3k1 | JSON in JSON | 40 | |
| 0x0n0m4d | Modular Arithmetic 2 | 20 | |
| g3k1 | RSA or HMAC? | 35 | |
| g3k1 | JWT Secrets | 25 | |
| g3k1 | No Way JOSE | 20 | |
| whiterose0x666 | Modular Arithmetic 1 | 20 | |
| g3k1 | JWT Sessions | 10 | |
| g3k1 | Token Appreciation | 5 | |
| un5h4d0w | Bytes and Big Integers | 10 | |
| SMBITHI | Manyprime | 40 | |
| DavidKrell | Quadratic Residues | 25 | |
| whiterose0x666 | Extended GCD | 20 | |
| Wanini | Parameter Injection | 60 | |
| verion | Base64 | 10 | |
| un5h4d0w | Base64 | 10 | |
| 4rg0 | Manyprime | 40 |
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