| Date | User | Challenge | Score |
| gnomeright | Passwords as Keys | 50 | |
| Neutr0nys | Micro Transmissions | 120 | |
| rain_cloud | CERTainly not | 30 | |
| HFTuray | Keyed Permutations | 5 | |
| Wenennefer | Symmetry | 50 | |
| avm | Passwords as Keys | 50 | |
| avm | Modes of Operation Starter | 15 | |
| fibonnaci | Modular Inverting | 25 | |
| avm | Structure of AES | 15 | |
| gnomeright | Bringing It All Together | 50 | |
| fibonnaci | Modular Arithmetic 2 | 20 | |
| avm | Resisting Bruteforce | 10 | |
| avm | Keyed Permutations | 5 | |
| fibonnaci | Modular Arithmetic 1 | 20 | |
| avm | Unencryptable | 125 | |
| fibonnaci | Greatest Common Divisor | 15 | |
| Wenennefer | ECB CBC WTF | 55 | |
| richardgfargles | Finding Flags | 2 | |
| avm | Ellipse Curve Cryptography | 125 | |
| crypto_cris | Bytes and Big Integers | 10 | |
| Blood_Character | Finding Flags | 2 | |
| Pilgrimjk | Hex | 5 | |
| crypto_cris | Base64 | 10 | |
| Pilgrimjk | ASCII | 5 | |
| Abbayyaar | Finding Flags | 2 | |
| Pilgrimjk | Great Snakes | 3 | |
| crypto_cris | Hex | 5 | |
| Pilgrimjk | Finding Flags | 2 | |
| rain_cloud | Privacy-Enhanced Mail? | 25 | |
| avm | No Way Back Home | 100 | |
| Wenennefer | RSA or HMAC? Part 2 | 100 | |
| crypto_cris | ASCII | 5 | |
| DahliaSR | Working with Fields | 10 | |
| crypto_cris | Network Attacks | 5 | |
| avm | Chinese Remainder Theorem | 40 | |
| avm | Modular Square Root | 35 | |
| avm | Legendre Symbol | 35 | |
| chrischako | RSA Decryption | 20 | |
| avm | Adrien's Signs | 80 | |
| chrischako | Private Keys | 20 | |
| Ah_Crypto2 | RSA Signatures | 25 | |
| lmmast | ASCII | 5 | |
| lmmast | Great Snakes | 3 | |
| Spicezb | Quadratic Residues | 25 | |
| chrischako | Euler's Totient | 20 | |
| Ah_Crypto2 | Computing Public Values | 25 | |
| Ah_Crypto2 | RSA Decryption | 20 | |
| chrischako | Public Keys | 15 | |
| Spicezb | Modular Inverting | 25 | |
| Ah_Crypto2 | Private Keys | 20 |
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