| Date | User | Challenge | Score |
| AESpider | Cofactor Cofantasy | 150 | |
| Rick_O_shay | ASCII | 5 | |
| MichaelML | XOR Properties | 15 | |
| rush_i | Quadratic Residues | 25 | |
| phantom_X | Legendre Symbol | 35 | |
| fr0mars_ | Find the Lattice | 100 | |
| Alysss | Great Snakes | 3 | |
| MichaelML | XOR Starter | 10 | |
| Alysss | Finding Flags | 2 | |
| Vic144 | XOR Starter | 10 | |
| MichaelML | Bytes and Big Integers | 10 | |
| Vic144 | Bytes and Big Integers | 10 | |
| osmen | Extended GCD | 20 | |
| mmanna | Base64 | 10 | |
| bsvac | Marin's Secrets | 50 | |
| Thecrytarka | Modular Arithmetic 1 | 20 | |
| thereamix | Round Keys | 20 | |
| Komasan_ | Montgomery Curves | 30 | |
| mmanna | Hex | 5 | |
| gooselose | Hex | 5 | |
| thereamix | Structure of AES | 15 | |
| mmanna | ASCII | 5 | |
| BearThaRealHe | Resisting Bruteforce | 10 | |
| Thecrytarka | Extended GCD | 20 | |
| mmanna | Network Attacks | 5 | |
| gooselose | ASCII | 5 | |
| foidphobic | Modular Inverting | 25 | |
| BearThaRealHe | Keyed Permutations | 5 | |
| AESpider | Unencryptable | 125 | |
| phantom_X | Quadratic Residues | 25 | |
| bsvac | Infinite Descent | 50 | |
| AESpider | Roll your Own | 125 | |
| ubun_2 | Favourite byte | 20 | |
| Vic144 | Base64 | 10 | |
| thereamix | Resisting Bruteforce | 10 | |
| gooselose | Great Snakes | 3 | |
| ubun_2 | XOR Properties | 15 | |
| AESpider | Ellipse Curve Cryptography | 125 | |
| soodal | ASCII | 5 | |
| SpilledBeans | RSA Backdoor Viability | 175 | |
| Inkius | RSA or HMAC? | 35 | |
| Efital | Finding Flags | 2 | |
| mmanna | Great Snakes | 3 | |
| AESpider | No Way Back Home | 100 | |
| gooselose | Finding Flags | 2 | |
| Vic144 | Hex | 5 | |
| Harshil1110 | Jack's Birthday Hash | 20 | |
| mmanna | Finding Flags | 2 | |
| dcosmayhem | Round Keys | 20 | |
| soodal | Great Snakes | 3 |
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