[tor-commits] [torspec/master] may->must, and split a sentence into two

[nickm@xxxxxxxxxxxxxx]

commit fa2c8ae9f7f753c70a8220ab937854b74318cfca
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Tue Jul 25 09:33:02 2017 -0400

    may->must, and split a sentence into two
    
    The original was incorrect to say
      "You may do A if B, C otherwise."
    but it seems less clear to say
      "You MUST do A if B, C otherwise."
    than it is to say
      "If A, you MUST B. If not A, you MUST C."
    
    Closes ticket 22951
---
 tor-spec.txt | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/tor-spec.txt b/tor-spec.txt
index fd2aaf7..9ccdabe 100644
--- a/tor-spec.txt
+++ b/tor-spec.txt
@@ -500,11 +500,13 @@ see tor-design.pdf.
    as part of its answer if it chooses to authenticate, and a NETINFO
    cell (4.5).  As soon as it gets the CERTS cell, the initiator knows
    whether the responder is correctly authenticated.  At this point the
-   initiator may send a NETINFO cell if it does not wish to
-   authenticate, or a CERTS cell, an AUTHENTICATE cell (4.4), and a NETINFO
-   cell if it does.  When this handshake is in use, the first cell must
-   be VERSIONS, VPADDING or AUTHORIZE, and no other cell type is allowed to
-   intervene besides those specified, except for PADDING and VPADDING cells.
+   initiator behaves differently depending on whether it wants to
+   authenticate or not. If it does not want to authenticate, it MUST
+   send a NETINFO cell.  If it does want to authenticate, it MUST send a
+   CERTS cell, an AUTHENTICATE cell (4.4), and a NETINFO.  When this
+   handshake is in use, the first cell must be VERSIONS, VPADDING or
+   AUTHORIZE, and no other cell type is allowed to intervene besides
+   those specified, except for PADDING and VPADDING cells.
 
    The AUTHORIZE cell type is reserved for future use by scanning-resistance
    designs.

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