[tor-commits] [torspec/master] Prop 254: Describe token generation more clearly

[nickm@xxxxxxxxxxxxxx]

commit acd4a89c1c81d0de37c57313e31ffca7413ae511
Author: Mike Perry <mikeperry-git@xxxxxxxxxxxxxx>
Date:   Mon Nov 5 23:17:14 2018 +0000

    Prop 254: Describe token generation more clearly
    
    I hope...
---
 proposals/254-padding-negotiation.txt | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/proposals/254-padding-negotiation.txt b/proposals/254-padding-negotiation.txt
index d950446..f166d5f 100644
--- a/proposals/254-padding-negotiation.txt
+++ b/proposals/254-padding-negotiation.txt
@@ -155,13 +155,14 @@ distribution that is encoded into bins of exponentially increasing width.
 The first bin of the histogram (bin 0) has 0 width, with a delay value of
 start_usec+rtt_estimate (from the machine definition, and rtt estimate above).
 
-The bin before the "infinity bin" has a time value of
-start_usec+rtt_estimate+range_sec*USEC_PER_SEC.
-
-The bins between these two points are exponentially spaced, so that smaller
-bin indexes represent narrower time ranges, doubling up until the last bin
-range of [(start_usec+rtt_estimate+range_sec*USEC_PER_SEC)/2,
-start_usec+rtt_estimate+range_sec*USEC_PER_SEC).
+The remaining bins are exponentially spaced, starting at this offset and
+covering the range of the histogram, which is range_sec*USEC_PER_SEC.
+
+The intermediate bins thus divide the timespan range_sec*USEC_PER_SEC with
+offset start_usec+rtt_estimate, so that smaller bin indexes represent narrower
+time ranges, doubling up until the last bin. The last bin before the "infinity
+bin" thus covers [start_usec+rtt_estimate+range_sec*USEC_PER_SEC/2,
+CIRCPAD_DELAY_INFINITE).
 
 This exponentially increasing bin width allows the histograms to most
 accurately represent small interpacket delay (where accuracy is needed), and



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