| Date | User | Challenge | Score |
| randomstar | Everything is Big | 70 | |
| hackerpj12 | Export-grade | 100 | |
| George_Weasly | Monoprime | 30 | |
| Renosirp | XOR Starter | 10 | |
| hoangvu5 | Passwords as Keys | 50 | |
| Wiskundeles | Euler's Totient | 20 | |
| L0n3_W0lf_170 | Favourite byte | 20 | |
| Wiskundeles | Public Keys | 15 | |
| Renosirp | Bytes and Big Integers | 10 | |
| Wiskundeles | Modular Exponentiation | 10 | |
| c0mpos3r99 | XOR Starter | 10 | |
| George_Weasly | Factoring | 15 | |
| hoangvu5 | Modes of Operation Starter | 15 | |
| George_Weasly | RSA Signatures | 25 | |
| L0n3_W0lf_170 | XOR Properties | 15 | |
| hoangvu5 | Bringing It All Together | 50 | |
| hackerpj12 | Parameter Injection | 60 | |
| Ishanu | ASCII | 5 | |
| Ishanu | Great Snakes | 3 | |
| hackerpj12 | Background Reading | 5 | |
| Ishanu | Finding Flags | 2 | |
| George_Weasly | RSA Decryption | 20 | |
| George_Weasly | Private Keys | 20 | |
| George_Weasly | Euler's Totient | 20 | |
| George_Weasly | Public Keys | 15 | |
| George_Weasly | Modular Exponentiation | 10 | |
| hoangvu5 | Diffusion through Permutation | 30 | |
| randomstar | Modulus Inutilis | 50 | |
| Abinesh | XOR Starter | 10 | |
| CorvuS | Extended GCD | 20 | |
| hoangvu5 | Confusion through Substitution | 25 | |
| totdking | Hex | 5 | |
| cbrit | XOR Properties | 15 | |
| hoangvu5 | Round Keys | 20 | |
| randomstar | Salty | 20 | |
| hoangvu5 | Structure of AES | 15 | |
| randomstar | Manyprime | 40 | |
| Abinesh | Bytes and Big Integers | 10 | |
| babaisyou | Base64 | 10 | |
| CongMinh | Structure of AES | 15 | |
| zipill | Round Keys | 20 | |
| babaisyou | Hex | 5 | |
| moozwen | Hex | 5 | |
| babaisyou | ASCII | 5 | |
| babaisyou | Great Snakes | 3 | |
| moozwen | ASCII | 5 | |
| randomstar | Square Eyes | 35 | |
| babaisyou | Finding Flags | 2 | |
| Chinebot | CERTainly not | 30 | |
| Romyna | Mister Saplins The Prover | 125 |
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