| Date | User | Challenge | Score |
| sganeshan | Working with Fields | 10 | |
| grupo52026 | ASCII | 5 | |
| sganeshan | Modulus Inutilis | 50 | |
| sganeshan | Salty | 20 | |
| sganeshan | Manyprime | 40 | |
| osamaashraf | Base64 | 10 | |
| sganeshan | Monoprime | 30 | |
| sganeshan | Factoring | 15 | |
| sganeshan | RSA Signatures | 25 | |
| ShadowUnknown1 | Hex | 5 | |
| sganeshan | RSA Decryption | 20 | |
| sganeshan | Private Keys | 20 | |
| osamaashraf | Hex | 5 | |
| sganeshan | Euler's Totient | 20 | |
| sganeshan | Public Keys | 15 | |
| ShadowUnknown1 | ASCII | 5 | |
| sganeshan | Modular Exponentiation | 10 | |
| rweb | RSA Signatures | 25 | |
| osamaashraf | ASCII | 5 | |
| sganeshan | Modular Binomials | 80 | |
| sganeshan | Adrien's Signs | 80 | |
| rweb | RSA Decryption | 20 | |
| sganeshan | Chinese Remainder Theorem | 40 | |
| ShadowUnknown1 | Great Snakes | 3 | |
| Asgard9675 | Privacy-Enhanced Mail? | 25 | |
| sganeshan | Modular Square Root | 35 | |
| ShadowUnknown1 | Finding Flags | 2 | |
| osamaashraf | Great Snakes | 3 | |
| osamaashraf | Finding Flags | 2 | |
| sganeshan | Legendre Symbol | 35 | |
| rweb | Private Keys | 20 | |
| sganeshan | Quadratic Residues | 25 | |
| sganeshan | Modular Inverting | 25 | |
| sganeshan | Modular Arithmetic 2 | 20 | |
| sganeshan | Modular Arithmetic 1 | 20 | |
| hmd0102 | Ellipse Curve Cryptography | 125 | |
| Vinjr | Proofs of Knowledge | 20 | |
| rweb | Euler's Totient | 20 | |
| usagi143 | Adrien's Signs | 80 | |
| sganeshan | Extended GCD | 20 | |
| caledt | Adrien's Signs | 80 | |
| sganeshan | Greatest Common Divisor | 15 | |
| sganeshan | You either know, XOR you don't | 30 | |
| sganeshan | Favourite byte | 20 | |
| chk | ECB CBC WTF | 55 | |
| sganeshan | XOR Properties | 15 | |
| sganeshan | XOR Starter | 10 | |
| sganeshan | Bytes and Big Integers | 10 | |
| sganeshan | Base64 | 10 | |
| caro186 | Network Attacks | 5 |
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