VeriFone VX 520 - Page 82

FILE AUTHENTICATION
Introduction to File Authentication
82 VX 520 REFERENCE GUIDE
Figure 29 illustrates the deployment process.
Figure 29 The Deployment Process
VERISHIELD
FILE SIGNING
TOOL
PRE-DEPLOYMENT
PROCESS
DEVELOPMENT
PROCESS
SMART
CARD
PIN
SIGNATURE FILE
(*.*.P7S)
SIGNER
CERTIFICATE
SPONSOR
CERTIFICATE
FULLY DEBUGGED
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)
SIGNER
CERTIFICATE
SIGNER SMART CARD
SPONSOR
CERTIFICATE
SIGNER
PRIVATE KEY