This book constitutes the thoroughly refereedpost-conference proceedings of the 16th International Conference on InformationSecurity, ISC 2013, held in Dallas, Texas, in November 2013.

The 16 revised full papers presented together with 14short papers were carefully reviewed and selected from 70 submissions. Thepapers cover a wide range of topics in the area of cryptography andcryptanalysis and are organized in the following topical sections: security ofoperating systems; secret sharing; encryption; malware and Criticalinfrastructures; cryptanalysis; block ciphers and stream ciphers; entityauthentication; usability & risk perception; access control; computersecurity; privacy attacks; cryptography.