Adrian Crenshaw http://Irongeek.com I run Irongeek.com  I have an interest in InfoSec  education I don’t know everything - I’m just a  geek with time on my hands (ir)Regular on the ISDPodcast  http://www.isd-podcast.com/ http://Irongeek.com Darknets There are many definitions, but mine is  “anonymizing private networks ” Use of encryption and proxies (some times other  peers) to obfuscate who is communicating to whom Sometimes referred to as Cipherspace (love that  term) http://Irongeek.com IPs can be associated with ISPs  Bills have to be paid  Websites log IPs as a matter of course  ISPs can look at their logs for who was leased an IP  Lots of plain text protocols allow for easy sniffing  http://www.irongeek.com/i.php?page=security/ipinfo http://www.irongeek.com/i.php?page=security/AQuickIntrotoSniffers http://www.irongeek.com/i.php?page=videos/footprinting-scoping-and- recon-with-dns-google-hacking-and-metadata http://Irongeek.com Privacy enthusiasts and those worried about  censorship Firms worried about policy compliance and leaked  data Law enforcement  http://Irongeek.com Do you want to stay anonymous? P2P  Censorship  Privacy  http://Irongeek.com Is someone sneaking out private data? Trade secrets  Personally identifiable information  http://Irongeek.com Contraband and bad people? Criminals  Terrorists  Pedos  http://Irongeek.com Proxy  Something that does something for something else Encryption  Obfuscating a message with an algorithm and one or more keys Signing  Using public key cryptography, a message can be verified based on a signature that in all likelihood had to be made by a signer that had the secret key Small world model  Ever heard of six degrees of Kevin Bacon? http://Irongeek.com The Onion Router http://Irongeek.com