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Diffstat (limited to 'tor-spec.txt')
| -rw-r--r-- | tor-spec.txt | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/tor-spec.txt b/tor-spec.txt index 2272c28..7aba3da 100644 --- a/tor-spec.txt +++ b/tor-spec.txt @@ -1446,8 +1446,9 @@ see tor-design.pdf. The 'recognized' field is used for a simple indication for if the cell still encrypted or not. When sending cells the unencrypted 'recognized' MUST be set to zero. When receiving and decrypting - cells the 'recognized' will be zero if we're the endpoint the cell - is destined for, and non-zero otherwise. + cells the 'recognized' MAY be zero if we're the endpoint the cell + is destined for (there's a 1/2^32 chance of encrypted bytes + coincidently being zero), and non-zero otherwise. When 'recognized' in an unencrypted relay payload is zero the 'digest' field is computed as the first four bytes of the running |