Specifications

FILE AUTHENTICATION
Introduction to File Authentication
VX 520 R
EFERENCE GUIDE 79
Figure 27 illustrates the development process.
Figure 27 The Development Process
SIGNATURE FILE
(.P7S)
APPLICATION FILE
DEVELOPMENT OS SEARCHES FOR A .P7S FILE.
IF A .P7S FILE IS FOUND, OS THEN SEARCHES
FOR A MATCHING APPLICATION FILE.
IF A MATCHING APPLICATION FILE IS FOUND, OS
COMPARES .P7S FILE'S SIGNATURE AGAINST
VALUES IN THE APPLICATION FILE'S CALCULATED
SIGNATURE.
IF THE VALUES MATCH, THE TWO FILES ARE
AUTHENTICATED, AND THE ATTR_NOT_AUTH
BIT IS SET TO 0.
1)
2)
3)
4)
SDK
DEVELOPER DEVELOPER
DEVELOPER
APPLIES
FOR SIGNER
CERTIFICATE
CERTIFICATE
KEY
VERISHIELD
DEPLOYMENT
PROCESS
FULLY DEBUGGED
APPLICATION FILE
DEBUG APPLICATION
FILE; MAKE
NECESSARY CHANGES.
DEVELOPER CREATES
APPLICATION.
APPLICATION FILE
CREATED
(WITH DEVELOPER-
ASSIGNED NAME).