| Date | User | Challenge | Score |
| test_dhkt | Encoding Challenge | 40 | |
| jaehyeon | Quadratic Residues | 25 | |
| jaehyeon | Modular Inverting | 25 | |
| jaehyeon | Modular Arithmetic 2 | 20 | |
| test_dhkt | Bytes and Big Integers | 10 | |
| Neutr0nys | Bounded Noise | 50 | |
| jaehyeon | Modular Arithmetic 1 | 20 | |
| test_dhkt | Base64 | 10 | |
| jaehyeon | Extended GCD | 20 | |
| Kimvo | RSA Decryption | 20 | |
| KietwhUIT | Modular Binomials | 80 | |
| test_dhkt | Hex | 5 | |
| DangKhoaVox | Computing Shared Secrets | 30 | |
| z4ibi | XOR Starter | 10 | |
| test_dhkt | ASCII | 5 | |
| gorogoro | Merkle Trees | 25 | |
| test_dhkt | Network Attacks | 5 | |
| Neutr0nys | Noise Free | 40 | |
| stpt | Chinese Remainder Theorem | 40 | |
| KietwhUIT | Broken RSA | 100 | |
| test_dhkt | Great Snakes | 3 | |
| TheKY | Adrien's Signs | 80 | |
| test_dhkt | Finding Flags | 2 | |
| Kimvo | Private Keys | 20 | |
| MeowSonic | Bean Counter | 60 | |
| XPhuocNe | Modular Inverting | 25 | |
| starwalkinglty | Computing Shared Secrets | 30 | |
| Kimvo | Euler's Totient | 20 | |
| Neutr0nys | From Private to Public Key LWE | 25 | |
| DangKhoaVox | Computing Public Values | 25 | |
| Neutr0nys | LWE Low Bits Message | 20 | |
| XPhuocNe | Modular Arithmetic 2 | 20 | |
| Neutr0nys | LWE High Bits Message | 15 | |
| XPhuocNe | Modular Arithmetic 1 | 20 | |
| Kimvo | Public Keys | 15 | |
| DangKhoaVox | Generators of Groups | 20 | |
| Neutr0nys | LWE Intro | 10 | |
| Kimvo | Modular Exponentiation | 10 | |
| gnomeright | Unencryptable | 125 | |
| Neutr0nys | LWE Background | 5 | |
| XPhuocNe | Extended GCD | 20 | |
| Gvilugron | Great Snakes | 3 | |
| XPhuocNe | Greatest Common Divisor | 15 | |
| vivisect0r | ECB CBC WTF | 55 | |
| parkdongjin | Bean Counter | 60 | |
| parkdongjin | Symmetry | 50 | |
| phongtin27 | Modes of Operation Starter | 15 | |
| parkdongjin | Flipping Cookie | 60 | |
| sherwynd | Structure of AES | 15 | |
| samhmc001 | Finding Flags | 2 |
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