| Date | User | Challenge | Score |
| octtaine | Round Keys | 20 | |
| octtaine | Structure of AES | 15 | |
| octtaine | Resisting Bruteforce | 10 | |
| octtaine | Keyed Permutations | 5 | |
| Azalea | Modes of Operation Starter | 15 | |
| platinumxy | Collider | 50 | |
| tortoiseseadonut | ECB CBC WTF | 55 | |
| Azalea | Bringing It All Together | 50 | |
| Ky_rie12 | Diffusion through Permutation | 30 | |
| Azalea | Diffusion through Permutation | 30 | |
| Azalea | Confusion through Substitution | 25 | |
| BlackyCTF | RSA Backdoor Viability | 175 | |
| vashtamamka | XOR Starter | 10 | |
| BlackyCTF | Vote for Pedro | 150 | |
| Azalea | Round Keys | 20 | |
| Azalea | Structure of AES | 15 | |
| Azalea | Resisting Bruteforce | 10 | |
| Ky_rie12 | Confusion through Substitution | 25 | |
| Azalea | Keyed Permutations | 5 | |
| shraddha_t | Salty | 20 | |
| luchen_crypt0 | ECB CBC WTF | 55 | |
| CrYp7T0 | XOR Starter | 10 | |
| vashtamamka | Bytes and Big Integers | 10 | |
| luchen_crypt0 | Passwords as Keys | 50 | |
| BlackyCTF | Let's Decrypt | 80 | |
| bhakku | Privacy-Enhanced Mail? | 25 | |
| vashtamamka | Base64 | 10 | |
| luchen_crypt0 | Modes of Operation Starter | 15 | |
| dkmy | JWT Sessions | 10 | |
| BlackyCTF | Signing Server | 60 | |
| luchen_crypt0 | Bringing It All Together | 50 | |
| BlackyCTF | Bespoke Padding | 100 | |
| luchen_crypt0 | Diffusion through Permutation | 30 | |
| vashtamamka | Hex | 5 | |
| tortoiseseadonut | ECB Oracle | 60 | |
| luchen_crypt0 | Confusion through Substitution | 25 | |
| handatm | Quadratic Residues | 25 | |
| luchen_crypt0 | Round Keys | 20 | |
| Ky_rie12 | Round Keys | 20 | |
| luchen_crypt0 | Structure of AES | 15 | |
| Ky_rie12 | Structure of AES | 15 | |
| Ky_rie12 | Resisting Bruteforce | 10 | |
| vashtamamka | ASCII | 5 | |
| Ky_rie12 | Keyed Permutations | 5 | |
| handatm | Modular Inverting | 25 | |
| BlackyCTF | Null or Never | 100 | |
| platinumxy | Jack's Birthday Confusion | 30 | |
| Hack0 | XOR Starter | 10 | |
| BlackyCTF | Fast Primes | 75 | |
| handatm | Modular Arithmetic 2 | 20 |
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