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Solved Challenges
| Symmetric Ciphers | CTRIME | 70 | |
| Symmetric Ciphers | Bean Counter | 60 | |
| Symmetric Ciphers | Symmetry | 50 | |
| RSA | Signing Server | 60 | |
| RSA | Bespoke Padding | 100 | |
| Crypto on the Web | Decrypting TLS 1.2 | 30 | |
| Crypto on the Web | Saying Hello | 20 | |
| Crypto on the Web | TLS Handshake | 15 | |
| Crypto on the Web | Secure Protocols | 5 | |
| 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 | Quadratic Residues | 25 | |
| Hash Functions | Collider | 50 | |
| Hash Functions | Jack's Birthday Confusion | 30 | |
| Hash Functions | Jack's Birthday Hash | 20 | |
| Elliptic Curves | Exceptional Curves | 100 | |
| RSA | Everything is Still Big | 100 | |
| RSA | Crossed Wires | 100 | |
| RSA | Everything is Big | 70 | |
| Diffie-Hellman | Export-grade | 100 | |
| RSA | Monoprime | 30 | |
| Elliptic Curves | Efficient Exchange | 50 | |
| Elliptic Curves | Curves and Logs | 40 | |
| Elliptic Curves | Scalar Multiplication | 35 | |
| Elliptic Curves | Point Addition | 30 | |
| Elliptic Curves | Point Negation | 10 | |
| Elliptic Curves | Background Reading | 5 | |
| Diffie-Hellman | Parameter Injection | 60 | |
| Diffie-Hellman | Diffie-Hellman Starter 5 | 40 | |
| Diffie-Hellman | Diffie-Hellman Starter 4 | 30 | |
| Diffie-Hellman | Diffie-Hellman Starter 3 | 20 | |
| Diffie-Hellman | Diffie-Hellman Starter 2 | 20 | |
| Diffie-Hellman | Diffie-Hellman Starter 1 | 10 | |
| RSA | Modulus Inutilis | 50 | |
| RSA | Salty | 20 | |
| RSA | Manyprime | 40 | |
| RSA | Factoring | 15 | |
| RSA | RSA Starter 6 | 25 | |
| RSA | RSA Starter 5 | 20 | |
| RSA | RSA Starter 4 | 20 | |
| RSA | RSA Starter 3 | 20 | |
| RSA | RSA Starter 2 | 15 | |
| RSA | RSA Starter 1 | 10 | |
| 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 | |
| General | Greatest Common Divisor | 15 |
