tor/changes/prop110
Nick Mathewson 0187bd8728 Implement the last of proposal 110
Reject all EXTEND requests not received in a relay_early cell
2011-12-22 09:51:59 -05:00

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o Major features:
- Now that Tor 0.2.0.x is completely deprecated, we can enable the
final part of "Proposal 110: Avoiding infinite length circuits"
by refusing all circuit-extend requests that do not appear in a
"relay_early" cell. This change helps Tor to resist a class of
denial-of-service attacks by limiting the maximum circuit length.