| Date | User | Challenge | Score |
| alua | Symmetry | 50 | |
| alua | Triple DES | 60 | |
| alua | Flipping Cookie | 60 | |
| Mppl2437 | Jack's Birthday Hash | 20 | |
| alua | ECB Oracle | 60 | |
| Jinx | Modulus Inutilis | 50 | |
| alua | Passwords as Keys | 50 | |
| alua | Modes of Operation Starter | 15 | |
| alua | Bringing It All Together | 50 | |
| PanagiotisK | Diffusion through Permutation | 30 | |
| Jinx | Salty | 20 | |
| alua | Diffusion through Permutation | 30 | |
| alua | Confusion through Substitution | 25 | |
| alua | Round Keys | 20 | |
| alua | Structure of AES | 15 | |
| Assel | Bytes and Big Integers | 10 | |
| alua | Resisting Bruteforce | 10 | |
| alua | Keyed Permutations | 5 | |
| Haxr | Greatest Common Divisor | 15 | |
| Matthaios | ASCII | 5 | |
| Jinx | Square Eyes | 35 | |
| senynmaman | Dancing Queen | 120 | |
| Matthaios | Great Snakes | 3 | |
| chiefkon | Great Snakes | 3 | |
| Jinx | Monoprime | 30 | |
| chiefkon | Finding Flags | 2 | |
| Matthaios | Finding Flags | 2 | |
| purple_rabbit | Quadratic Residues | 25 | |
| doomguy24 | Greatest Common Divisor | 15 | |
| Mppl2437 | Smooth Criminal | 60 | |
| confucius | Bytes and Big Integers | 10 | |
| Jinx | RSA Signatures | 25 | |
| bordercut | Passwords as Keys | 50 | |
| kazhymukan | The Good, The Pad, The Ugly | 100 | |
| Jinx | RSA Decryption | 20 | |
| lynny42 | Dancing Queen | 120 | |
| Adeka228 | Pad Thai | 80 | |
| Dgcg | Marin's Secrets | 50 | |
| aidanak | Adrien's Signs | 80 | |
| dwaeji | ECB Oracle | 60 | |
| confucius | Base64 | 10 | |
| 1celand | You either know, XOR you don't | 30 | |
| Roudi | Base64 | 10 | |
| aidanak | Successive Powers | 60 | |
| dwaeji | ECB CBC WTF | 55 | |
| Beethoven3 | Smooth Criminal | 60 | |
| confucius | Hex | 5 | |
| Adeka228 | Oh SNAP | 120 | |
| aidanak | Chinese Remainder Theorem | 40 | |
| ngynmq | Script Kiddie | 70 |
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