University:
Anglia Ruskin University
Course:
BSE13CF| Computer Forensic
Academic year:

2024
Views:

407

Pages:

8
Author:

Sharookh N.

AGENDA • Computer image verification & Authentication Special needs of evidential authentication • It may be possible to seize the computer system, this risks violating the basic principle innocent until proven guilty , by depriving an innocent party his or her use of the system • It should be perfectly possible to copy all details of the computer in the manner that leaves the original system untouched and yet makes data available for forensics analysis The court needs evidence that the evidence has been protected from accidental or deliberate modification it is not the content that needs protection but the • Special needs of evidential authentication • • • • The protection takes two forms A secure method of determing that the data has not been altered by even a single bit after the data is copied A secure method of determing that the copy is genuinely the one taken at the time and on the computer in question This is collectively called digital image verification and Authentication protocol Digital IDs & Authentication Technology Digital IDs & Authentication Technology Digital IDs & Authentication Technology How Authenticode works in Verisign • • Time stamping When you sign code , a hash of you code is send to VeriSign to be time stamped. As a result when your code is downloaded , clients will be able to distinguish between code signed with an expired certificate. Security Warning Screen