His research interests are in the areas of information theory, error-control coding, wireless communications, and cryptography. He is the current chair of the Online Committee of the IEEE Information Theory Society. He has served on the organizing committee of several international conferences and workshops, including the workshop on physical layer security at ICCÕ11. He is the recipient of the IEEE Communications Society and IEEE Information Theory Society 2011 Joint Best Paper Award for his seminal work on physical layer security. Prof. Bloch published a large number of papers in physical layer security and co-authored the textbook Physical-Layer Security: From Information Theory to Security Engineering published by Cambridge University Press.