This book constitutes revised selected papers from the 7th International Workshop on Constructive Side-Channel Analysis and Secure Design, COSADE 2016, held in Graz, Austria, in April 2016. The 12 papers presented in this volume were carefully reviewed and selected from 32 submissions. They were organized in topical sections named: security and physical attacks; side-channel analysis (case studies); fault analysis; and side-channel analysis (tools).