Document that HMAC() with a NULL md is not thread safe
authorMatt Caswell <matt@openssl.org>
Thu, 25 May 2017 14:18:22 +0000 (15:18 +0100)
committerMatt Caswell <matt@openssl.org>
Thu, 25 May 2017 14:34:30 +0000 (15:34 +0100)
commit47695810b3bea3e83e8bc2266e1672676a189efd
treea285e15faf4257b2149a9318938ed7c1bcac9e34
parent867a917032e3eaff7b13d5f68063997f27ca26aa
Document that HMAC() with a NULL md is not thread safe

Fixes #3541

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3553)
doc/man3/HMAC.pod