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Public Key Infrastructure (PKI)

This overview delves into Public Key Infrastructure (PKI) and its significance in secure communications. The document covers the fundamentals of PKI, including its definition, motivation behind its use, cryptographic tools, and the role of digital certificates. It discusses how trust is organized within a PKI, exploring various models, including hierarchy, networked systems, and PGP. Lastly, it examines what PKI can and cannot do, along with potential issues and limitations. Essential readings are included for further exploration.

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Public Key Infrastructure (PKI)

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  1. Public Key Infrastructure(PKI) Jerad Bates University of Maryland, Baltimore County

  2. Overview • Introduction • Background • Certificates • Organization • Conclusions

  3. Introduction • Motivation • What is a PKI?

  4. Background • Cryptographic tools • Putting them together • A secure communication session

  5. Certificates • What they are • How they are issued • How they are distributed

  6. Organization • What is “Trust”? • How do we organize a PKI to disseminate trust • Models • Hierarchy • Networked • Web Browser • PGP

  7. Conclusions • What a PKI can do • What a PKI can not do • Issues and Limitations

  8. Sources • Stinson, Douglas R. Cryptography: Theory and Practice. 3rd ed. Boca Raton, FL: Chapman & Hall/CRC, 2006. • Tanenbaum, Andrew S., and Maarten V. Steen. Distributed Systems: Principles and Paradigms. 2nd ed. Upper Saddle River, NJ: Pearson Prentice Hall, 2007.

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