tree bc178979ed6771eb837bc3abbb9324bfe5962bb7
parent a42d7bee85c6f7b972011c7d4c086ad4ae14ac6d
author David Benjamin <davidben@google.com> 1516461915 -0500
committer Adam Langley <agl@google.com> 1516744285 +0000

Always compute the maximum-length wNAF.

This cuts out another total_num-length array and simplifies things.
Leading zeros at the front of the schedule don't do anything, so it's
easier to just produce a fixed-length one. (I'm also hoping to
ultimately reuse this function in //third_party/fiat/p256.c and get the
best of both worlds for ECDSA verification; tuned field arithmetic
operations, precomputed table, and variable-time multiply.)

Change-Id: I771f4ff7dcfdc3ee0eff8d9038d6dc9a0be3d4e0
Reviewed-on: https://boringssl-review.googlesource.com/25148
Reviewed-by: Adam Langley <agl@google.com>