| Date | User | Challenge | Score |
| y20064 | Base64 | 10 | |
| ndgsghdj | Find the Lattice | 100 | |
| NEEL_2006_MONDAL | Manyprime | 40 | |
| y20064 | Hex | 5 | |
| zJQHAHA1 | Hex | 5 | |
| xuli | XOR Properties | 15 | |
| MuniraXudoyberga | XOR Starter | 10 | |
| toaru_k | Computing Shared Secrets | 30 | |
| Shoto | Finding Flags | 2 | |
| jianchi998 | Base64 | 10 | |
| toaru_k | Computing Public Values | 25 | |
| LittleHacker | Modular Binomials | 80 | |
| 0xh3b3 | Greatest Common Divisor | 15 | |
| y20064 | ASCII | 5 | |
| kskbl | XOR Starter | 10 | |
| zerosfajnk | Bytes and Big Integers | 10 | |
| xuli | XOR Starter | 10 | |
| 3p1cm4n | Base64 | 10 | |
| toaru_k | Generators of Groups | 20 | |
| BatBato | Diffusion through Permutation | 30 | |
| kskbl | Bytes and Big Integers | 10 | |
| 3p1cm4n | Hex | 5 | |
| 3p1cm4n | ASCII | 5 | |
| y20064 | Great Snakes | 3 | |
| 3p1cm4n | Great Snakes | 3 | |
| rush_i | Find the Lattice | 100 | |
| 3p1cm4n | Finding Flags | 2 | |
| acekorsaggot | Chinese Remainder Theorem | 40 | |
| tckj_42 | Great Snakes | 3 | |
| lyy00 | Great Snakes | 3 | |
| xuli | Bytes and Big Integers | 10 | |
| yu_00 | Base64 | 10 | |
| mk00001 | Bytes and Big Integers | 10 | |
| xuli | Base64 | 10 | |
| 0pt1m1st | XOR Properties | 15 | |
| y20064 | Finding Flags | 2 | |
| NEEL_2006_MONDAL | Square Eyes | 35 | |
| lemwin | XOR Properties | 15 | |
| xuli | Hex | 5 | |
| wolfie5656 | Bytes and Big Integers | 10 | |
| ali125 | Structure of AES | 15 | |
| qvist | ASCII | 5 | |
| spatino | Bean Counter | 60 | |
| toaru_k | Working with Fields | 10 | |
| Pepsi | ASCII | 5 | |
| em2294 | Passwords as Keys | 50 | |
| xuli | ASCII | 5 | |
| wolfie5656 | Base64 | 10 | |
| minnnjuuu | RSA Signatures | 25 | |
| xuli | Great Snakes | 3 |
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