Clarify BN_mod_exp docs
authorMatt Caswell <matt@openssl.org>
Mon, 30 Apr 2018 14:05:45 +0000 (15:05 +0100)
committerMatt Caswell <matt@openssl.org>
Tue, 1 May 2018 13:26:10 +0000 (14:26 +0100)
commita96022b3c4d159d1b14f54bd6811fd97a52df636
treea51053101ea3568f63e1eef342ba488f245e5cd8
parentb9f0d1832ce9224d437d5c0b537b4e4004adafb7
Clarify BN_mod_exp docs

Specifically this is not supported with an even modulus and
BN_FLG_CONSTTIME.

Fixes #5082

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6138)

(cherry picked from commit 966b3df182b9c8644c154f1c3e686027d37acb05)
doc/crypto/BN_add.pod