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| author | Nick Mathewson <nickm@torproject.org> | 2007-08-17 20:31:56 +0000 |
|---|---|---|
| committer | Nick Mathewson <nickm@torproject.org> | 2007-08-17 20:31:56 +0000 |
| commit | b60f4a4d16882f15321223936aa9e5f8dc1a1f5e (patch) | |
| tree | a13bee2eeeb2052ff2de8492d11da2d3d376a3df /doc/spec/tor-spec.txt | |
| parent | 31668172eda0e3798ba18e59f18a0e2c10128595 (diff) | |
| download | tor-b60f4a4d16882f15321223936aa9e5f8dc1a1f5e.tar.gz tor-b60f4a4d16882f15321223936aa9e5f8dc1a1f5e.zip | |
r14629@catbus: nickm | 2007-08-17 16:14:05 -0400
spec clarification noted by Stefan K.
svn:r11152
Diffstat (limited to 'doc/spec/tor-spec.txt')
| -rw-r--r-- | doc/spec/tor-spec.txt | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/doc/spec/tor-spec.txt b/doc/spec/tor-spec.txt index 49745ff5b9..7023e3c446 100644 --- a/doc/spec/tor-spec.txt +++ b/doc/spec/tor-spec.txt @@ -293,11 +293,14 @@ see tor-design.pdf. The CircID for a CREATE cell is an arbitrarily chosen 2-byte integer, selected by the node (OP or OR) that sends the CREATE cell. To prevent - CircID collisions, when one OR sends a CREATE cell to another OR, it chooses + CircID collisions, when one node sends a CREATE cell to another, it chooses from only one half of the possible values based on the ORs' public - identity keys: if the sending OR has a lower key, it chooses a CircID with + identity keys: if the sending node has a lower key, it chooses a CircID with an MSB of 0; otherwise, it chooses a CircID with an MSB of 1. + (An OP with no public key MAY choose any CircID it wishes, since an OP + never needs to process a CREATE cell.) + Public keys are compared numerically by modulus. As usual with DH, x and y MUST be generated randomly. |