VeriFone VX 680 Reference Manual page 68

F A
ILE UTHENTICATION
Introduction to File Authentication
68
VX 680 R
EFERENCE
Figure 8 illustrates the certificate trees in development and deployment terminals.
DEVELOPMENT TERMINAL
DEVELOPMENT TERMINAL
VERIFONE VERIFONE
PARTITION PARTITION
OPERATING
OPERATING
SYSTEM
SYSTEM
Figure 8 Certificate Trees in Development and Deployment Terminals
Permanency of the Certificate Tree
The data contained in a digital certificate is stored in the terminal's certificate tree
when the certificate is authenticated, and the certificate file itself is erased from
memory.
The certificate tree file is stored in a reserved area of non-volatile memory and is
therefore permanent. New certificate data can be added to the existing certificate
tree (up to a maximum of 21 certificates).
Required Inputs to the File Signing Process
The required inputs to the file signing process are somewhat different for
development terminals than deployment terminals. The significant differences are
shown in Table 10.
G
UIDE
ROOT
ROOT
APPLICATION APPLICATION
PARTITION PARTITION
DEVELOPMENT
DEVELOPMENT
SPONSOR
SPONSOR
CERTIFICATE
CERTIFICATE
(VALIDATED
(VALIDATED
BY THE
BY THE
APPLICATION
APPLICATION
PARTITION
PARTITION
CERTIFICATE)
CERTIFICATE)
DEVELOPMENT
DEVELOPMENT
SIGNER
SIGNER
CERTIFICATE
CERTIFICATE
(VALIDATED BY
(VALIDATED BY
THE SPONSOR
THE SPONSOR
CERTIFICATE)
CERTIFICATE)
DEPLOYMENT TERMINAL
DEPLOYMENT TERMINAL
ROOT
ROOT
VERIFONE VERIFONE APPLICATION APPLICATION
PARTITION PARTITION PARTITION PARTITION
DEPLOYMENT
DEPLOYMENT
SPONSOR
SPONSOR
CERTIFICATE
CERTIFICATE
OPERATING
OPERATING
(VALIDATED
(VALIDATED
SYSTEM
SYSTEM
BY THE
BY THE
APPLICATION
APPLICATION
PARTITION
PARTITION
CERTIFICATE)
CERTIFICATE)
DEPLOYMENT
DEPLOYMENT
CERTIFICATE
CERTIFICATE
(VALIDATED BY
(VALIDATED BY
THE SPONSOR
THE SPONSOR
CERTIFICATE)
CERTIFICATE)