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| author | Roger Dingledine <arma@torproject.org> | 2004-04-28 20:01:54 +0000 |
|---|---|---|
| committer | Roger Dingledine <arma@torproject.org> | 2004-04-28 20:01:54 +0000 |
| commit | fd0d48e4843de1ad8d6dda7ff91bd505887d5889 (patch) | |
| tree | fc7459fc37fe187f09334e6da7e89a0965655063 /doc/rend-spec.txt | |
| parent | 25d5425fdb85071069dc8ec9dd02209b8205c8ea (diff) | |
| download | tor-fd0d48e4843de1ad8d6dda7ff91bd505887d5889.tar tor-fd0d48e4843de1ad8d6dda7ff91bd505887d5889.tar.gz | |
clarify the hybrid encryption in our spec
svn:r1736
Diffstat (limited to 'doc/rend-spec.txt')
| -rw-r--r-- | doc/rend-spec.txt | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/doc/rend-spec.txt b/doc/rend-spec.txt index c428864d8..ac2b0aca8 100644 --- a/doc/rend-spec.txt +++ b/doc/rend-spec.txt @@ -255,12 +255,10 @@ Tor Rendezvous Spec PK_ID is the hash of Bob's public key. RP is NUL-padded. - The data is encrypted to Bob's PK as follows: Suppose Bob's PK is L octets - long. If the data to be encrypted is shorter than L-42, then it is - encrypted directly (with OAEP padding). If the data is at least as long - as L-42, then a randomly generated 16-byte symmetric key is prepended to - the data, after which the first L-16-42 bytes of the data are encrypted with - Bob's PK; and the rest of the data is encrypted with the symmetric key. + The hybrid encryption to Bob's PK works just like the hybrid + encryption in CREATE cells (see main spec). Thus the payload of the + RELAY_INTRODUCE1 cell on the wire will contain 20+42+16+20+20+128=246 + bytes. 1.9. Introduction: From the Introduction Point to Bob's OP |