tailieunhanh - Handbook of Applied Cryptography - chap13

This chapter considers key management techniques for controlling the distribution, use, and update of cryptographic keys. Whereas Chapter 12 focuses on details of specific key establishment protocols which provide shared secret keys, here the focus is on communications models for key establishment and use, classification and control of keys based on their intended use, techniques for the distribution of public keys, architectures supporting automated key updates in distributed systems, and the roles of trusted third parties | This is a Chapter from the Handbook of Applied Cryptography by A. Menezes P. van Oorschot and S. Vanstone CRC Press 1996. For further information see hac CRC Press has granted the following specihc permissions for the electronic version of this book Permission is granted to retrieve print and store a single copy of this chapter for personal use. This permission does not extend to binding multiple chapters of the book photocopying or producing copies for other than personal use of the person creating the copy or making electronic copies available for retrieval by others without prior permission in writing from CRC Press. Except where over-ridden by the specihc permission above the standard copyright notice from CRC Press applies to this electronic version Neither this book nor any part may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying microhlming and recording or by any information storage or retrieval system without prior permission in writing from the publisher. The consent of CRC Press does not extend to copying for general distribution for promotion for creating new works or for resale. Specihc permission must be obtained in writing from CRC Press for such copying. @1997 by CRC Press Inc. Chapter Key Management Techniques Contents in Brief Background and basic Techniques for distributing confidential Techniques for distributing public keys .555 Techniques for controlling key Key management involving multiple Key life cycle Advanced trusted third party Notes and further Introduction This chapter considers key management techniques for controlling the distribution use and update of cryptographic keys. Whereas Chapter 12 focuses on details of specific key establishment protocols which provide shared secret keys here the focus is on .