part 1 Part I: Protocols and Theory -- chapter 1 E-Cash Mira Belenkiy -- chapter 2 Auctions / chapter 3 Electronic Voting / chapter 4 Non-Repudiation / chapter 5 Fair Exchange / chapter 6 Broadcast and Content Distribution / part 2 Part II: Systems, Device, Banking, and Commerce -- chapter 7 Micropayment Systems Ro´bert Pa´rhonyi -- chapter 8 Digital Rights Management / chapter 9 Trusted Computing / chapter 10 Hardware Security Modules / chapter 11 Portfolio Trading / part 3 Risk, Threats, Countermeasures, and Trust -- chapter 12 Phishing / chapter 13 Anonymous Communication / chapter 14 Digital Watermarking / chapter 15 Identity Management / chapter 16 Public Key Infrastructure / part 4 Part IV: Perspectives -- chapter 17 Human Factors / chapter 18 Legal Issues / chapter 19 Regulatory Compliance