User's Manual

Table Of Contents
PERFORMING DOWNLOADS
Effect of Downloads on Existing Files and Data
VX 675 R
EFERENCE GUIDE 125
9
**VERIFYING FILES**
CHECK CERTIFICATE
(FILENAME.CRT)
**AUTHENTIC**
or
--- FAILED ---
The file authentication module continues to authenticate
any new signature files downloaded with the OS files.
When the signature file authentication routine starts, the
status display informs you of the progress of the
authentication process.
If file authentication succeeds for a specific signature file,
the “
AUTHENTIC” message is displayed directly below the
filename of the signature file. If file authentication fails for a
specific signature file, the “
FAILED” message is displayed
for five seconds below the filename and the terminal
beeps three times, allowing you to note which signature
file failed to authenticate. The authentication process then
proceeds to the next signature file until all signature files
are validated.
When all new signature files are authenticated, the
terminal restarts, and the application specified in the *GO
variable or the default application in Group 1 executes and
starts running on the terminal.
10
(Application Prompt)
or
DOWNLOAD NEEDED
If the downloaded application successfully authenticates,
the corresponding application prompt or logo is displayed
upon restart.
The terminal can now process transactions.
Note: The message DOWNLOAD NEEDED appears if:
The *GO variable is not set.
*GO does not specify that an application is present.
The application did not authenticate (invalid or missing
*.p7s file).
The application uses shared libraries that are missing or
were not authenticated (invalid or missing *.p7s files).
If one or more executables in the application fail to
successfully authenticate, the application may not run. If
the application attempts to access an unauthenticated
executable or library, it may crash. Repeat the Direct
Operating System Download Procedure using the correct
certificates and/or signature files.
Table 14 Direct Application Download Procedure (continued)
Step Display Action