This book constitutes the refereed proceedings of the 14th International Conference on Cryptology and Network Security, CANS 2015, held in Marrakesh, Morocco, in December 2015. The 12 full papers presented together with 6 short papers were carefully reviewed and selected from numerous submissions. The papers cover topics of interest such as internet of things and privacy; password-based authentication; attacks and malicious code; security modeling and verification; secure multi-party computation; and cryptography and VPNs.