zhanghanwen
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Rank: #58778
Level: 1
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Solved Challenges
| Diffie-Hellman | Generators of Groups | 20 | |
| Diffie-Hellman | Working with Fields | 10 | |
| RSA | Private Keys | 20 | |
| RSA | RSA Decryption | 20 | |
| RSA | Euler's Totient | 20 | |
| RSA | Public Keys | 15 | |
| RSA | Modular Exponentiation | 10 | |
| Mathematics | Successive Powers | 60 | |
| Mathematics | Chinese Remainder Theorem | 40 | |
| Mathematics | Quadratic Residues | 25 | |
| Symmetric Ciphers | Round Keys | 20 | |
| Symmetric Ciphers | Resisting Bruteforce | 10 | |
| Symmetric Ciphers | Keyed Permutations | 5 | |
| General | Modular Arithmetic 2 | 20 | |
| General | Modular Arithmetic 1 | 20 | |
| Introduction | Network Attacks | 5 | |
| General | Extended GCD | 20 | |
| General | Greatest Common Divisor | 15 | |
| General | ASCII | 5 | |
| Introduction | Great Snakes | 3 | |
| Introduction | Finding Flags | 2 |
