tree b11349d143f8b0acf428fe9fb51ca505a1526309
parent a23b68f564fc412bd23d3f46b15a2bcd4825e480
author Martin Kreichgauer <martinkr@google.com> 1503091476 -0700
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1504725766 +0000

Zero memory in |OPENSSL_free|.

Allocations by |OPENSSL_malloc| are prefixed with their length.
|OPENSSL_free| zeros the allocation before calling free(), eliminating
the need for a separate call to |OPENSSL_cleanse| for sensitive data.

This change will be followed up by the cleanup in
https://boringssl-review.googlesource.com/c/boringssl/+/19824.

Change-Id: Ie272f07e9248d7d78af9aea81dacec0fdb7484c4
Reviewed-on: https://boringssl-review.googlesource.com/19544
Reviewed-by: Martin Kreichgauer <martinkr@google.com>
Commit-Queue: Martin Kreichgauer <martinkr@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>