commit 684c46b8222f1ad96971729124cc06cb7fb3773a Author: Nick Mathewson nickm@torproject.org Date: Mon Jul 30 10:13:43 2018 -0400

Clarify some places where we meant RELAY to include RELAY_EARLY. --- tor-spec.txt | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/tor-spec.txt b/tor-spec.txt index 4cc38b3..c54b63c 100644 --- a/tor-spec.txt +++ b/tor-spec.txt @@ -476,7 +476,7 @@ see tor-design.pdf. Payload contains padding bytes. CREATE/CREATE2: Payload contains the handshake challenge. CREATED/CREATED2: Payload contains the handshake response. - RELAY: Payload contains the relay header and relay body. + RELAY/RELAY_EARLY: Payload contains the relay header and relay body. DESTROY: Payload contains a reason for closing the circuit. (see 5.4) Upon receiving any other value for the command field, an OR must @@ -491,14 +491,15 @@ see tor-design.pdf. Other variable-length cells: Payload MAY contain padding bytes at the end of the cell. Padding bytes SHOULD be set to NUL. - RELAY: Payload MUST be padded to PAYLOAD_LEN with padding bytes. - Padding bytes SHOULD be set to random values. + RELAY/RELAY_EARLY: Payload MUST be padded to PAYLOAD_LEN with padding + bytes. Padding bytes SHOULD be set to random values. Other fixed-length cells: Payload MUST be padded to PAYLOAD_LEN with padding bytes. Padding bytes SHOULD be set to NUL. - We recommend random padding in RELAY cells, so that cell content is - unpredictable. See proposal 289 for details. For non-RELAY cells, TLS - authenticates cell content, so randomised padding bytes are redundant. + We recommend random padding in RELAY/RELAY_EARLY cells, so that the cell + content is unpredictable. See proposal 289 for details. For other + cells, TLS authenticates cell content, so randomised padding bytes are + redundant.

Receivers MUST ignore padding bytes.