| Date | User | Challenge | Score |
| Xavier | No Way Back Home | 100 | |
| SubgroupAI | Modular Square Root | 35 | |
| Kospatt | Parameter Injection | 60 | |
| BataMladen | XOR Starter | 10 | |
| g__p | Infinite Descent | 50 | |
| SubgroupAI | Legendre Symbol | 35 | |
| uzer503 | Bytes and Big Integers | 10 | |
| g__p | Crossed Wires | 100 | |
| MajorFalleN | Unencryptable | 125 | |
| daanaaa | You either know, XOR you don't | 30 | |
| g__p | Salty | 20 | |
| Janek0 | Parameter Injection | 60 | |
| MidoS3d | Crossed Wires | 100 | |
| g__p | Factoring | 15 | |
| bjwtaylor | Monoprime | 30 | |
| kingshin | Greatest Common Divisor | 15 | |
| teetoamate | Authenticated Handshake | 40 | |
| g__p | RSA Signatures | 25 | |
| g__p | RSA Decryption | 20 | |
| g__p | Private Keys | 20 | |
| 0xldcn | Greatest Common Divisor | 15 | |
| Krako | Smooth Criminal | 60 | |
| g__p | Euler's Totient | 20 | |
| g__p | Public Keys | 15 | |
| StanleJanesz | Flipping Cookie | 60 | |
| g__p | Modular Exponentiation | 10 | |
| mkrajevsky | Static Client | 100 | |
| MajorFalleN | Pad Thai | 80 | |
| MidoS3d | Inferius Prime | 30 | |
| MajorFalleN | Logon Zero | 80 | |
| Gogox0 | Point Addition | 30 | |
| MajorFalleN | Dancing Queen | 120 | |
| MajorFalleN | Stream of Consciousness | 80 | |
| g__p | Computing Shared Secrets | 30 | |
| g__p | Computing Public Values | 25 | |
| g__p | Generators of Groups | 20 | |
| daanaaa | Favourite byte | 20 | |
| g__p | Working with Fields | 10 | |
| Rybashka | Script Kiddie | 70 | |
| g__p | Jack's Birthday Confusion | 30 | |
| Kospatt | Deriving Symmetric Keys | 40 | |
| g__p | Jack's Birthday Hash | 20 | |
| nabbiinn | Adrien's Signs | 80 | |
| TTING | Export-grade | 100 | |
| itamar_rot | Jeff's LFSR | 150 | |
| g__p | Structure of AES | 15 | |
| g__p | Resisting Bruteforce | 10 | |
| g__p | Keyed Permutations | 5 | |
| tmkyd | Infinite Descent | 50 | |
| absimaman | Greatest Common Divisor | 15 |
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