TAILIEUCHUNG - Hacker Professional Ebook part 186

Tham khảo tài liệu 'hacker professional ebook part 186', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | NNTP-Posting-Host X-Last-Updated 1994 06 13 Originator faqserv@ Archive-name cryptography-faq rsa part2 Last-modified 93 09 20 Version Distribution-agent tmp@ This document has been brought to you in part by CRAM. See the bottom for more information including instructions on how to obtain updates. Answers To FREQUENTLY ASKED QUESTIONS About Today s Cryptography Paul Fahn RSA Laboratories 100 Marine Parkway Redwood City CA 94065 Copyright c 1993 RSA Laboratories a division of RSA Data Security Inc. All rights reserved. Version draft 2f Last update September 20 1993 Table of Contents part 2 3 Key Management What key management issues are involved in public-key cryptography Who needs a key How does one get a key pair Should a public key or private key be shared among users What are certificates How are certificates used Who issues certificates and how What is a CSU or How do certifying authorities store their private keys Are certifying authorities susceptible to attack What if the certifying authority s key is lost or compromised What are Certificate Revocation Lists CRLs What happens when a key expires What happens if I lose my private key What happens if my private key is compromised How should I store my private key How do I find someone else s public key How can signatures remain valid beyond the expiration dates of their keys or How do you verify a 20-year-old signature What is a digital time-stamping service 4 Factoring and Discrete Log What is a one-way function What is the significance of one-way functions for cryptography What is the factoring problem What is the significance of factoring in cryptography Has factoring been getting easier What are the best factoring methods in use today What are the prospects for theoretical factoring breakthroughs What is the RSA Factoring Challenge .

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