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Rank: #10593
Level: 1
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| ZKPs | ZKP Introduction | 5 | |
| RSA | Factoring | 15 | |
| General | XOR Starter | 10 | |
| Symmetric Ciphers | Keyed Permutations | 5 | |
| Symmetric Ciphers | Modes of Operation Starter | 15 | |
| Symmetric Ciphers | Lazy CBC | 60 | |
| Introduction | Network Attacks | 5 | |
| Introduction | Finding Flags | 2 | |
| Symmetric Ciphers | Bean Counter | 60 | |
| General | Modular Arithmetic 1 | 20 | |
| General | Hex | 5 | |
| General | ASCII | 5 | |
| Hash Functions | Collider | 50 | |
| Symmetric Ciphers | Stream of Consciousness | 80 | |
| Mathematics | Chinese Remainder Theorem | 40 | |
| Mathematics | Successive Powers | 60 | |
| Symmetric Ciphers | Symmetry | 50 | |
| Symmetric Ciphers | Flipping Cookie | 60 | |
| Symmetric Ciphers | ECB CBC WTF | 55 | |
| Crypto on the Web | RSA or HMAC? | 35 | |
| Crypto on the Web | JSON in JSON | 40 | |
| Crypto on the Web | JWT Secrets | 25 | |
| Crypto on the Web | No Way JOSE | 20 | |
| Crypto on the Web | JWT Sessions | 10 | |
| Crypto on the Web | Token Appreciation | 5 |
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