| Date | User | Challenge | Score |
| thang2006 | Base64 | 10 | |
| zsnafu | You either know, XOR you don't | 30 | |
| caps | RSA Decryption | 20 | |
| caps | Private Keys | 20 | |
| Tatters | ASCII | 5 | |
| caps | Euler's Totient | 20 | |
| caps | Public Keys | 15 | |
| caps | Modular Exponentiation | 10 | |
| w0152 | No Random, No Bias | 120 | |
| Tatters | Great Snakes | 3 | |
| amirat_3ilka | Greatest Common Divisor | 15 | |
| zsnafu | Favourite byte | 20 | |
| Tatters | Finding Flags | 2 | |
| N0Fear | Finding Flags | 2 | |
| thang2006 | Hex | 5 | |
| khanhtai | Transparency | 50 | |
| lcalvie | LWE High Bits Message | 15 | |
| thang2006 | ASCII | 5 | |
| zsnafu | XOR Properties | 15 | |
| thang2006 | Great Snakes | 3 | |
| thang2006 | Finding Flags | 2 | |
| caps | Bean Counter | 60 | |
| zsnafu | XOR Starter | 10 | |
| zsnafu | Bytes and Big Integers | 10 | |
| zsnafu | Base64 | 10 | |
| lcalvie | LWE Intro | 10 | |
| zsnafu | Hex | 5 | |
| zsnafu | ASCII | 5 | |
| zsnafu | Great Snakes | 3 | |
| zsnafu | Finding Flags | 2 | |
| lcalvie | LWE Background | 5 | |
| khanhtai | SSH Keys | 35 | |
| khanhtai | Encoding Challenge | 40 | |
| w0152 | Bounded Noise | 50 | |
| flapjack990 | Legendre Symbol | 35 | |
| dragosSerif | You either know, XOR you don't | 30 | |
| dragosSerif | Favourite byte | 20 | |
| sera | You either know, XOR you don't | 30 | |
| cyberpolyglot | Modular Arithmetic 1 | 20 | |
| dragosSerif | XOR Properties | 15 | |
| cyberpolyglot | Extended GCD | 20 | |
| sgrenz | Additive | 70 | |
| cyberpolyglot | Greatest Common Divisor | 15 | |
| dragosSerif | XOR Starter | 10 | |
| sera | Favourite byte | 20 | |
| w0152 | Find the Lattice | 100 | |
| sera | XOR Properties | 15 | |
| dragosSerif | Bytes and Big Integers | 10 | |
| sera | XOR Starter | 10 | |
| dragosSerif | Base64 | 10 |
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