500 name limit on further certification by subject

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ion 2 Version – Adds unique identifier to prevent reuse of X.500 • Version 3 Version – Adds extension to carry additional information and some of them are • • • • Distinguish different certificates Alternative to X.500 name Limit on further certification by subject Policy and Usage X.509 Certificate Revocation List (CRL) X.509 • Is to prevent fraud and misuse. • A certificate may be revoked for one the certificate following reason: following – – – The user’s private is compromised The user is no longer certified by this CA The CA’s private key a compromised • Version 1 was published in 1988. • Version 2 was published in 1997. X.509 CRL (cont..) X.509 • X09 CRL consists of the following fields: – – – – – – – – – Version Serial Number Revocation Date Algorithm Identifier Issuer name Last update Next update Extensions (Version 2 only) Signature...
View Full Document

This note was uploaded on 06/03/2013 for the course IS e.g.101 taught by Professor Dr.mahmoudmostafa during the Fall '12 term at Ain Shams University.

Ask a homework question - tutors are online