| Date | User | Challenge | Score |
| vbao | Great Snakes | 3 | |
| Fecony | CERTainly not | 30 | |
| vbao | Finding Flags | 2 | |
| NashatAnwar | Lazy CBC | 60 | |
| Yudex | RSA Signatures | 25 | |
| aimansaif | Fast Primes | 75 | |
| aimansaif | Marin's Secrets | 50 | |
| NashatAnwar | Flipping Cookie | 60 | |
| NashatAnwar | ECB CBC WTF | 55 | |
| aimansaif | Infinite Descent | 50 | |
| aimansaif | Endless Emails | 150 | |
| aimansaif | Everything is Still Big | 100 | |
| aimansaif | Crossed Wires | 100 | |
| aimansaif | Everything is Big | 70 | |
| aimansaif | Modulus Inutilis | 50 | |
| anonymat | XOR Properties | 15 | |
| aimansaif | Salty | 20 | |
| bigredduck | You either know, XOR you don't | 30 | |
| aimansaif | Manyprime | 40 | |
| aimansaif | Square Eyes | 35 | |
| aimansaif | Monoprime | 30 | |
| aimansaif | Inferius Prime | 30 | |
| aimansaif | Factoring | 15 | |
| aimansaif | RSA Signatures | 25 | |
| aimansaif | RSA Decryption | 20 | |
| aimansaif | Private Keys | 20 | |
| aimansaif | Euler's Totient | 20 | |
| aimansaif | Public Keys | 15 | |
| aimansaif | Modular Exponentiation | 10 | |
| Joao28 | CERTainly not | 30 | |
| Emtor42 | Passwords as Keys | 50 | |
| NashatAnwar | WOTS Up 2 | 90 | |
| NashatAnwar | WOTS Up | 75 | |
| NashatAnwar | Merkle Trees | 25 | |
| Yudex | CERTainly not | 30 | |
| williehen | Honest Verifier Zero Knowledge | 30 | |
| NashatAnwar | Invariant | 250 | |
| NashatAnwar | Mixed Up | 120 | |
| NashatAnwar | MD0 | 80 | |
| NashatAnwar | No Difference | 175 | |
| NashatAnwar | PriMeD5 | 100 | |
| NashatAnwar | Hash Stuffing | 50 | |
| NashatAnwar | Collider | 50 | |
| NashatAnwar | Jack's Birthday Confusion | 30 | |
| NashatAnwar | Jack's Birthday Hash | 20 | |
| oxryta | ASCII | 5 | |
| NashatAnwar | Computing Shared Secrets | 30 | |
| NashatAnwar | Computing Public Values | 25 | |
| NashatAnwar | Generators of Groups | 20 | |
| NashatAnwar | Working with Fields | 10 |
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