Specifications

FILE AUTHENTICATION
Introduction to File Authentication
90 VX 520 REFERENCE GUIDE
Replace a Sponsor Certificate
A sponsor may need to clear the current sponsor certificate from a terminal so that
a new sponsor can load certificates and applications. To do this, the original
sponsor must order a “clear” smart card from the VeriFone CA. The clear smart
card is specific to the requesting sponsor. It restores a deployment terminal to the
development state (refer to Figure 31) by:
• Deleting the current sponsor and signer certificates from the terminal’s
application partition.
Figure 31 Certificate Replacement Process
NOTE
The process for replacing a signer certificate is the same as replacing a sponsor
certificate.
REPLACE A CERTIFICATE
DELETES THE CURRENT
SPONSOR AND SIGNER
CERTIFICATES
RESTORE THE DEVELOPER
CERTIFICATE COPY
*
*
ROOT
APPLICATION
PARTITION
OPERATING
SYSTEM
VERIFONE
PARTITION
DEPLOYMENT TERMINAL
ROOT
OPERATING
SYSTEM
APPLICATION
PARTITION
VERIFONE
PARTITION
DEVELOPMENT TERMINAL
LOADS THE CLEAR CERTIFICATE,
RANDOM FILE, AND RANDOM
SIGNATUREFILEINTOTHE
TERMINAL.
THE VERISHIELD PROCESS:
SPONSOR
CERTIFICATE
(VALIDATED
BY THE
APPLICATION
PARTITION
CERTIFICATE)
SIGNER
CERTIFICATE
(VALIDATED BY
THE SPONSOR
CERTIFICATE)
SPONSOR
CERTIFICATE
(VALIDATED
BY THE
APPLICATION
PARTITION
CERTIFICATE)
SIGNER
CERTIFICATE
(VALIDATED BY
THE SPONSOR
CERTIFICATE)