moth/puzzles/net-re/summary.txt

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1 base math
2 ASCII, Base64
3 Application protocols 1
4 MIME
5 PCAP files and Wireshark
6 Application protocols 2
7 IP, TCP
8 XOR masks
10 Examine pcap
20 Reconstruct image from HTTP in pcap
30 Reconstruct image from FTP in pcap
100 Hex decode
200 Base64 decode
250 Pull email out of pcap
300 More pulling things out of pcap
400 Still more pulling things out of pcap
700 Base64, then xor
800 DNS packet; you're going to have to do some research
1000 16-byte xor key, but can be obtained with 1-byte
1200 Another 16-byte xor key, can't be obtained with 1-byte
2000 Paul's covert channel thingy
3000 ICMP tunnel
5000 ICMP tunnel, with xor
25000 ICMP tunnel, with xor, multiplexed transfers