| Date | User | Challenge | Score |
| Moumise | Base64 | 10 | |
| silvereagle429 | Public Keys | 15 | |
| CARLO_HTW | Chinese Remainder Theorem | 40 | |
| FeisterWheat67 | ASCII | 5 | |
| silvereagle429 | Modular Exponentiation | 10 | |
| KenjiCryptHack | Hex | 5 | |
| FeisterWheat67 | Great Snakes | 3 | |
| CARLO_HTW | Modular Square Root | 35 | |
| QWXXHSX123 | Proofs of Knowledge | 20 | |
| noncense | Size and Basis | 15 | |
| KenjiCryptHack | ASCII | 5 | |
| silvereagle429 | Bringing It All Together | 50 | |
| Moumise | Hex | 5 | |
| EXDPeterbot | Finding Flags | 2 | |
| KenjiCryptHack | Great Snakes | 3 | |
| KenjiCryptHack | Finding Flags | 2 | |
| noncense | Vectors | 10 | |
| Moumise | ASCII | 5 | |
| pedro4444444444 | Finding Flags | 2 | |
| Buddies | RSA Signatures | 25 | |
| Buddies | RSA Decryption | 20 | |
| Buddies | Private Keys | 20 | |
| Buddies | Euler's Totient | 20 | |
| benito255 | Bruce Schneier's Password: Part 2 | 250 | |
| Buddies | Public Keys | 15 | |
| akramkamal1221 | Working with Fields | 10 | |
| Moumise | Great Snakes | 3 | |
| inv | Invariant | 250 | |
| inv | An Evil Twisted Mind | 175 | |
| MrPres | Authenticated Handshake | 40 | |
| wjaaaaaaat | Special Soundness | 25 | |
| yomama6767 | Bytes and Big Integers | 10 | |
| Moumise | Finding Flags | 2 | |
| akramkamal1221 | Let's Decrypt Again | 175 | |
| akramkamal1221 | Vote for Pedro | 150 | |
| akramkamal1221 | Blinding Light | 120 | |
| akramkamal1221 | Let's Decrypt | 80 | |
| akramkamal1221 | Signing Server | 60 | |
| akramkamal1221 | Null or Never | 100 | |
| akramkamal1221 | Bespoke Padding | 100 | |
| akramkamal1221 | RSA Backdoor Viability | 175 | |
| akramkamal1221 | Ron was Wrong, Whit is Right | 90 | |
| akramkamal1221 | Fast Primes | 75 | |
| akramkamal1221 | Marin's Secrets | 50 | |
| akramkamal1221 | Infinite Descent | 50 | |
| akramkamal1221 | Endless Emails | 150 | |
| akramkamal1221 | Everything is Still Big | 100 | |
| akramkamal1221 | Crossed Wires | 100 | |
| akramkamal1221 | Everything is Big | 70 | |
| akramkamal1221 | Modulus Inutilis | 50 |
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