This book constitutes the refereed proceedings of the 7th International Conference on Cryptology and Network Security, CANS 2008, held in Hong-Kong, China, in December 2008. The 27 revised full papers presented were carefully reviewed and selected from 73 submissions. The papers are organized in topical sections on cryptosystems, signatures, identification, authentication and key management, cryptographic algorithms and protocols, stream ciphers and block ciphers, cryptographic foundations, applications and implementations, as well as security in ad hoc networks and wireless sensor networks.

InhaltsangabeCryptosystems.- Chosen-Ciphertext Secure Proxy Re-encryption without Pairings.- Hybrid Damgård Is CCA1-Secure under the DDH Assumption.- Efficient Dynamic Broadcast Encryption and Its Extension to Authenticated Dynamic Broadcast Encryption.- Cryptanalysis of Short Exponent RSA with Primes Sharing Least Significant Bits.- Signatures.- Efficient and Short Certificateless Signature.- Sanitizable Signatures Revisited.- An Efficient On-Line/Off-Line Signature Scheme without Random Oracles.- On the Security of Online/Offline Signatures and Multisignatures from ACISP'06.- Identification, Authentication and Key Management.- A Killer Application for Pairings: Authenticated Key Establishment in Underwater Wireless Sensor Networks.- Anonymous and Transparent Gateway-Based Password-Authenticated Key Exchange.- Cryptanalysis of EC-RAC, a RFID Identification Protocol.- Cryptographic Algorithms and Protocols.- Counting Method for Multi-party Computation over Non-abelian Groups.- Keyword Field-Free Conjunctive Keyword Searches on Encrypted Data and Extension for Dynamic Groups.- Analysis and Design of Multiple Threshold Changeable Secret Sharing Schemes.- Black-Box Constructions for Fully-Simulatable Oblivious Transfer Protocols.- Skew Frobenius Map and Efficient Scalar Multiplication for Pairing-Based Cryptography.- Stream Ciphers and Block Ciphers.- Cryptanalysis of MV3 Stream Cipher.- 3D: A Three-Dimensional Block Cipher.- Cryptographic Foundations.- Construction of Resilient Functions with Multiple Cryptographic Criteria.- Enumeration of Homogeneous Rotation Symmetric Functions over F p.- Unconditionally Reliable Message Transmission in Directed Hypergraphs.- Applications and Implementations.- An Open Framework for Remote Electronic Elections.- Conditional Payments for Computing Markets.- High-Speed Search System for PGP Passphrases.- Workload Characterization of a Lightweight SSL Implementation Resistant to Side-Channel Attacks.- Security in Ad Hoc Networks and Wireless Sensor Networks.- Authenticated Directed Diffusion.- A New Message Recognition Protocol for Ad Hoc Pervasive Networks.