This book constitutes the thoroughly refereed post-conference proceedings of the Second International Conference on Information Theoretic Security, ICITS 2007, held in Madrid, Spain, in May 2007.

The 13 revised full papers presented in this volume were carefully reviewed and selected from 26 submissions. There were one invited keynote speech and 3 invited talks to the conference. The topics covered are authentication, group cryptography, private and reliable message transmission, secret sharing, and applications of information theory.

This book constitutes the refereed proceedings of the 6th International Workshop on Practice and Theory in Public Key Cryptosystems, PKC 2003, held in Miami, Florida, USA in January 2003.

The 26 revised full papers presented were carefully reviewed and selected from 105 submissions. The papers are organized in topical sections on Diffie-Hellman based schemes, threshold cryptography, reduction proofs, broadcast and tracing, digital signatures, specialized multiparty cryptography, cryptanalysis, elliptic curves: implementation attacks, implementation and hardware issues, new public key schemes, and elliptic curves: general issues.

This book constitutes the thoroughly refereed post-conference proceedings of the 16th International Conference on Information Security, ISC 2013, held in Dallas, Texas, in November 2013. The 16 revised full papers presented together with 14 short papers were carefully reviewed and selected from 70 submissions. The papers cover a wide range of topics in the area of cryptography and cryptanalysis and are organized in the following topical sections: security of operating systems; secret sharing; encryption; malware and Critical infrastructures; cryptanalysis; block ciphers and stream ciphers; entity authentication; usability & risk perception; access control; computer security; privacy attacks; cryptography.