Certificateless Encryption.- A Brief Introduction to Certificateless Encryption Schemes and Their Infrastructures.- Certificates and Revocation.- A Computational Framework for Certificate Policy Operations.- Resource Management with X.509 Inter-domain Authorization Certificates (InterAC).- Reducing the Cost of Certificate Revocation: A Case Study.- Cryptographic Protocols.- Automatic Generation of Sigma-Protocols.- A Secure and Efficient Authenticated Diffie-Hellman Protocol.- Key Management for Large-Scale Distributed Storage Systems.- PKI in Practice.- Nationwide PKI Testing - Ensuring Interoperability of OCSP Server and Client Implementations Early during Component Tests.- On Device Identity Establishment and Verification.- ABUSE: PKI for Real-World Email Trust.- Encryption and Auctions.- Public-Key Encryption with Registered Keyword Search.- Practicalization of a Range Test and Its Application to E-Auction.- Timed-Ephemerizer: Make Assured Data Appear and Disappear.- Reputation and User Aspects.- Privacy and Liveliness for Reputation Systems.- A Multidimensional Reputation Scheme for Identity Federations.- On the Usability of User Interfaces for Secure Website Authentication in Browsers.- Digital Signatures.- Validity Models of Electronic Signatures and Their Enforcement in Practice.- Biometric Identity Based Signature Revisited.- How to Construct Identity-Based Signatures without the Key Escrow Problem.