Cep Terminals GSM/GPRS TERMINAL CT63 JAVA 6203 用户手册
产品代码
6203
Java User’s Guide
11.3 Application and Data Protection
99
wm_java_usersguide_v19
Page 93 of 109
2012-01-27
Confidential / Released
11.3
Application and Data Protection
In addition to the Java secured mode it is possible to prevent the activation of the Module Ex-
change Suite. When Module Exchange Suite access is deactivated with AT^SJSEC, it is no
longer possible to access to the Flash file system on the module. A condition for the deactiva-
tion of the access to the Flash file system is the existence of a customer root certificate inside
of the module (see
change Suite. When Module Exchange Suite access is deactivated with AT^SJSEC, it is no
longer possible to access to the Flash file system on the module. A condition for the deactiva-
tion of the access to the Flash file system is the existence of a customer root certificate inside
of the module (see
).
The default state of MES is ON.
11.4
Structure and Description of the Java Security Commands
Special commands are used in the Java security environment. These commands are trans-
ferred to the module with the help of the special AT command AT^SJSEC. This command
makes it possible to send binary data to the module. After AT^SJSEC is issued, the module
changes into a block transfer mode. Now binary data in a fixed format can be sent. These bi-
nary data contain the actual Java security commands.
ferred to the module with the help of the special AT command AT^SJSEC. This command
makes it possible to send binary data to the module. After AT^SJSEC is issued, the module
changes into a block transfer mode. Now binary data in a fixed format can be sent. These bi-
nary data contain the actual Java security commands.