| Date | User | Challenge | Score |
| cubaureo | Modular Exponentiation | 10 | |
| donatsell | Passwords as Keys | 50 | |
| Pantine | RSA Backdoor Viability | 175 | |
| Pantine | Ron was Wrong, Whit is Right | 90 | |
| Pantine | Fast Primes | 75 | |
| Pantine | Marin's Secrets | 50 | |
| Pantine | Infinite Descent | 50 | |
| qostro | ASCII | 5 | |
| Kaguai | Deriving Symmetric Keys | 40 | |
| sch0P | RSA Signatures | 25 | |
| qostro | Great Snakes | 3 | |
| KA183R | Favourite byte | 20 | |
| agomezmarti | Salty | 20 | |
| y0dam4n | Elliptic Nodes | 150 | |
| qostro | Finding Flags | 2 | |
| Kaguai | Computing Shared Secrets | 30 | |
| Kaguai | Computing Public Values | 25 | |
| donatsell | Modes of Operation Starter | 15 | |
| Kaguai | Generators of Groups | 20 | |
| andrewk0712 | Successive Powers | 60 | |
| nakanpro | Legendre Symbol | 35 | |
| Lafayette30 | Let's Decrypt Again | 175 | |
| Lafayette30 | Vote for Pedro | 150 | |
| Lafayette30 | Blinding Light | 120 | |
| Lafayette30 | Let's Decrypt | 80 | |
| Lafayette30 | Signing Server | 60 | |
| Lafayette30 | Null or Never | 100 | |
| Lafayette30 | Bespoke Padding | 100 | |
| kurgan | Lemur XOR | 40 | |
| Lafayette30 | RSA Backdoor Viability | 175 | |
| Lafayette30 | Ron was Wrong, Whit is Right | 90 | |
| Lafayette30 | Fast Primes | 75 | |
| Lafayette30 | Marin's Secrets | 50 | |
| Lafayette30 | Infinite Descent | 50 | |
| LQUICK | Favourite byte | 20 | |
| Lafayette30 | Endless Emails | 150 | |
| nakanpro | Quadratic Residues | 25 | |
| tsukubasan | You either know, XOR you don't | 30 | |
| kurgan | Encoding Challenge | 40 | |
| AceNk | Moving Problems | 150 | |
| Pantine | Endless Emails | 150 | |
| Pantine | Everything is Still Big | 100 | |
| Pantine | Crossed Wires | 100 | |
| Pantine | Everything is Big | 70 | |
| th4ont | ECB CBC WTF | 55 | |
| Pantine | Modulus Inutilis | 50 | |
| Pantine | Salty | 20 | |
| tsukubasan | Favourite byte | 20 | |
| ar4iks667 | Base64 | 10 | |
| MFauTzyM | ASCII | 5 |
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