Joined:
Rank: #2701
Level: 1
3000
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| Diffie-Hellman | Script Kiddie | 70 | |
| Symmetric Ciphers | CTRIME | 70 | |
| Symmetric Ciphers | Stream of Consciousness | 80 | |
| Symmetric Ciphers | Bean Counter | 60 | |
| Symmetric Ciphers | Symmetry | 50 | |
| Symmetric Ciphers | Triple DES | 60 | |
| Symmetric Ciphers | Lazy CBC | 60 | |
| Symmetric Ciphers | Flipping Cookie | 60 | |
| Symmetric Ciphers | ECB Oracle | 60 | |
| Symmetric Ciphers | ECB CBC WTF | 55 | |
| Symmetric Ciphers | Passwords as Keys | 50 | |
| Mathematics | Unencryptable | 125 | |
| Mathematics | Ellipse Curve Cryptography | 125 | |
| Mathematics | No Way Back Home | 100 | |
| Mathematics | Broken RSA | 100 | |
| Symmetric Ciphers | Paper Plane | 120 | |
| Symmetric Ciphers | Forbidden Fruit | 150 | |
| Symmetric Ciphers | Oh SNAP | 120 | |
| Symmetric Ciphers | Dancing Queen | 120 | |
| Isogenies | A True Genus | 175 | |
| Isogenies | Breaking SIDH | 250 | |
| RSA | Vote for Pedro | 150 | |
| RSA | Let's Decrypt Again | 175 | |
| RSA | Endless Emails | 150 | |
| RSA | RSA Backdoor Viability | 175 | |
| RSA | Crossed Wires | 100 | |
| RSA | Salty | 20 | |
| General | Greatest Common Divisor | 15 | |
| General | Encoding Challenge | 40 | |
| General | You either know, XOR you don't | 30 | |
| General | Favourite byte | 20 | |
| General | XOR Properties | 15 | |
| General | XOR Starter | 10 | |
| General | Bytes and Big Integers | 10 | |
| General | Base64 | 10 | |
| General | Hex | 5 | |
| Introduction | Network Attacks | 5 | |
| General | ASCII | 5 | |
| Introduction | Great Snakes | 3 | |
| Introduction | Finding Flags | 2 |
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