VeriFone VX 520 Specifications Page 186

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INDEX
E
186 VX 520 REFERENCE GUIDE
effect on existing files and data 117
file authentication 114
file authentication and back-to-back application
downloads
115
file authentication and downloading applica-
tions to specific file groups
114
file authentication and optimizing available
memory space
117
file authentication and timing considerations
116
file authentication process 101
file authentication requirements 110
certificates and signature files 110
file compression 117
file groups 52, 58
file system organization 104
full and partial downloads 102
full application 102
full operating system 103
host PC 99
operating system files 101
OS files and file authentication 114
partial application 102
partial operating system 103
performing downloads by telephone
hardware checklist
131
software checklist 131
procedure for performing a direct application
download
123
procedure for performing back-to-back applica-
tion downloads
136
procedure for performing downloads by tele-
phone
131
redirecting files during 106
redirecting files to flash memory 106
redirecting files to other file groups 107
redirection of files during downloads 106
back-to-back downloads 109
how operating system files are redirected
109
using DDL.EXE to automatically redirect files
109
restrictions on redirecting files to other file
groups
108
select port 54
set up the download environment for direct
application and OS downloads
118
support for multiple applications 104
physical and logical access to file groups
105
telephone 119
terminal configuration settings 101
tools 100
types of download operations 99
use of RAM and flash memory 105
defragmenting the flash 106
implications for data transfers 105
downloads by telephone 131
E
electrical considerations 16, 25
electrostatic discharges 25
prevention 25
environmental factors 15
error log 67
F
file authentication 110
authenticating files in specific file groups 91
back-to-back downloads 115
deciding which files to authenticate 83
definition of file authentication 75
deployment process 78, 81
development process 78
digital signature 76
downloading OS files and 114
for development terminals 86
for non-executable application files 83
guidelines for downloading specific file types 93
planning for successful file authentication 83
pre-deployment process 78, 80
relationship to file groups 91
special files used in the file authentication pro-
cess
76
VeriShield security architecture 83
file authentication certificates
adding new certificates
88
application partition certificate 77
certificate tree 85
control file signing privileges 86
customer signer certificate 89
customer sponsor certificate 89
default sponsor certificate 87
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