
The tests previously used md5, which is considered broken, and distros are starting to disable this in their openssl builds. Make the tests use sha256 as the default as a long term sane alternative that should work on all distros. This will fix Centos 7, and future proof the tests. Closes-Bug: #1399498 Change-Id: Ic6cc92e47a318d789db3c3c98c67948eefb51fc2