为什么公司难以获得正确的数字身份？如果你还在为网站身份验证等简单的身份问题苦苦挣扎，这本书就是你需要的答案。作者Phil Windley提供了概念框架来帮助你理解协议、标准以及可用的解决方案，同时提供了运用时机和场合的建议。
通过将当前的社交登录解决方案与新兴的自我主权身份问题联系起来，本书解释了数字身份的工作原理，让你牢牢把控事态的发展，并展示了如何使用数字身份来解决最紧迫的身份问题。开发人员、产品经理、主管和副总裁都能从中学习到如何在应用程序内部和整个企业中有效利用身份。

菲利普·J.温德利，Phil Windley是AWS Identity的开发经理。此前，他是杨百翰大学信息技术办公室的首席工程师和Sovrin基金会的创始主席。他也是Internet身份认证研讨会的联合创始人和组织者，这是世界上最具影响力和最悠久的身份认证会议之一，也是DigitalIdentity和The LiveWeb的作者。此外，Phil是犹他州的首席信息官和iMALL公司(电子商务工具的早期先行者)的创始人兼首席技术官。

Foreword
Preface
1. The Nature of Identity
A Bundle of Sticks?
Identity Is Bigger Than You Think
No Universal Identity Systems
The Road Ahead
2. Defining Digital Identity
The Language of Digital Identity
Identity Scenarios in the Physical World
Identity, Security, and Privacy
Digital Identity Perspectives
Tiers of Identity
Locus of Control
Reimagining Decentralized and Distributed
A Common Language
3. The Problems of Digital Identity
Tacit Knowledge and the Physical World
The Proximity Problem
The Autonomy Problem
The Flexibility Problem
The Consent Problem
The Privacy Problem
The (Lack of) Anonymity Problem
The Interoperability Problem
The Scale Problem
Solving the Problems
4. The Laws of Digital Identity
An Identity Metasystem
The Laws of Identity
User Control and Consent
Minimal Disclosure for a Constrained Use
Justifiable Parties
Directed Identity
Pluralism of Operators and Technologies
Human Integration
Consistent Experience Across Contexts
Fixing the Problems of Identity
5. Relationships and Identity
Identity Niches
Relationship Integrity
Relationship Life Span
Anonymity and Pseudonymity
Fluid Multi-Pseudonymity
Relationship Utility
Transactional and Interactional Relationships
Promoting Rich Relationships
6. The Digital Relationship Lifecycle
Discovering
Co-Creating
Propagating
Using
Updating or Changing
Terminating
Lifecycle Planning
7. Trust, Confidence, and Risk
Risk and Vulnerability
Fidelity and Provenance
Trust Frameworks
The Nature of Trust
Coherence and Social Systems
Trust, Confidence, and Coherence
8. Privacy
9. Integrity, Nonrepudiation, and Confidentiality
10. Names, Identifiers, and Discovery
11. Authentication and Relationship Integrity
12. Access Control and Relationship Utility
13. Federated Identity--Leveraging Strong Relationships
14. Cryptographic Identifiers
15. Verifiable Credentials
16. Digital Identity Architectures
17. Authentic Digital Relationships
18. Identity Wallets and Agents
19. Smart Identity Agents
20. Identity on the Internet of Things
21. Identity Policies
22. Governing Identity Ecosystems
23. Generative Identity
Index