code style: Put return type on the line above.
Code style: In "setter" methods, use meaningful argument name instead of "value".
Sha256WithRsaSignature: In setSignature, etc. only take a Blob. The Blob constructor can make a copy if needed.
Merge remote-tracking branch 'origin/master' into dev

Change-Id: I1bf34210ed62aed73f2cced3ca09e08732025d9d