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| Crypto on the Web | Saying Hello | 20 | |
| Crypto on the Web | Sharks on the Wire | 10 | |
| Crypto on the Web | Secure Protocols | 5 | |
| Crypto on the Web | JSON in JSON | 40 | |
| Crypto on the Web | RSA or HMAC? | 35 | |
| 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 | |
| Mathematics | Prime and Prejudice | 200 | |
| Mathematics | Adrien's Signs | 80 | |
| Mathematics | Successive Powers | 60 | |
| Mathematics | Legendre Symbol | 35 | |
| Symmetric Ciphers | Flipping Cookie | 60 | |
| Symmetric Ciphers | ECB CBC WTF | 55 | |
| Symmetric Ciphers | ECB Oracle | 60 | |
| Symmetric Ciphers | Passwords as Keys | 50 | |
| Symmetric Ciphers | Modes of Operation Starter | 15 | |
| Symmetric Ciphers | Bringing It All Together | 50 | |
| Symmetric Ciphers | Diffusion through Permutation | 30 | |
| Symmetric Ciphers | Confusion through Substitution | 25 | |
| Symmetric Ciphers | Round Keys | 20 | |
| Symmetric Ciphers | Structure of AES | 15 | |
| Symmetric Ciphers | Resisting Bruteforce | 10 | |
| Symmetric Ciphers | Keyed Permutations | 5 | |
| Mathematics | Real Eisenstein | 150 | |
| Mathematics | Unencryptable | 125 | |
| Mathematics | Roll your Own | 125 | |
| Mathematics | Ellipse Curve Cryptography | 125 | |
| Mathematics | No Way Back Home | 100 | |
| Mathematics | Broken RSA | 100 | |
| Mathematics | Chinese Remainder Theorem | 40 | |
| Mathematics | Modular Square Root | 35 | |
| Introduction | Finding Flags | 2 | |
| RSA | Inferius Prime | 30 | |
| Hash Functions | Jack's Birthday Confusion | 30 | |
| Hash Functions | Jack's Birthday Hash | 20 | |
| RSA | RSA Backdoor Viability | 175 | |
| RSA | Endless Emails | 150 | |
| RSA | Everything is Still Big | 100 | |
| RSA | RSA Signatures | 25 | |
| RSA | RSA Decryption | 20 | |
| RSA | Private Keys | 20 | |
| RSA | Euler's Totient | 20 | |
| RSA | Public Keys | 15 | |
| RSA | Modular Exponentiation | 10 |
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