14.02.2017 Views

Presented by Jason A Donenfeld FOSDEM 2017

2kVT3mc

2kVT3mc

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Cookies: TCP-like<br />

▪<br />

▪<br />

▪<br />

▪<br />

Dialog:<br />

▪ Initiator: Compute this DH().<br />

▪ Responder: Your magic word is “waffle”.<br />

Ask me again with the magic word.<br />

▪ Initiator: My magic word is “waffle”.<br />

Compute this DH().<br />

Proves IP ownership, but cannot rate<br />

limit IP address without storing state.<br />

▪ Violates security design principle, no<br />

dynamic allocations!<br />

Always responds to message.<br />

▪ Violates security design principle, stealth!<br />

Magic word can be intercepted.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!