These are my solutions to the Jan 2014 Stripe CTF3 event. The solutions were roughly:
| Level | Implementation | Language |
|---|---|---|
| 0 | Trie search (marisa-trie) | C |
| 1 | GPU SHA1 hasher | C/CUDA |
| 2 | Blackhole IPs with >4 requests | Javascript |
| 3 | Path-sharded in-memory scan | Scala |
| 4 | Raft-based distributed log | Go |