tree d793af8bef1b068707e105c8483ed1af5f587b53
parent 1c71844ef5538877714d7220f17f4230ae0b896d
author David Benjamin <davidben@google.com> 1552675564 -0500
committer Adam Langley <agl@google.com> 1552929632 +0000

Save a temporary in BN_mod_exp_mont's w=1 case.

BN_mod_exp_mont is most commonly used in RSA verification, where the exponent
sizes are small enough to use 1-bit "windows". There's no need to allocate the
extra BIGNUM.

Change-Id: I14fb523dfae7d77d2cec10a0209f09f22031d1af
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/35327
Reviewed-by: Adam Langley <agl@google.com>