GSM 11.14 - Version 5.2.0 - Digital cellular ... - Ttfn.net
GSM 11.14 - Version 5.2.0 - Digital cellular ... - Ttfn.net
GSM 11.14 - Version 5.2.0 - Digital cellular ... - Ttfn.net
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4.6 Security<br />
Page 13<br />
<strong>GSM</strong> <strong>11.14</strong> version <strong>5.2.0</strong>: December 1996<br />
Applications designed using the features in this specification may require methods to ensure data<br />
confidentiality, data integrity, and data sender validation, or any subset of these. Requirements for these<br />
mechanisms are defined in section 10.<br />
5 Profile download<br />
5.1 Procedure<br />
The profile download instruction is sent by the ME to the SIM as part of the SIM initialization procedure.<br />
This procedure is specified in <strong>GSM</strong> 11.11 [14]. In this procedure, the ME reads EF PHASE . If the EF<br />
indicates that the SIM requires the ME to perform the profile download procedure, then the ME shall send,<br />
as the next instruction to be sent to the SIM, the TERMINAL PROFILE command as specified below. The<br />
profile sent by the ME shall state the facilities relevant to SIM Application Toolkit that are supported by the<br />
ME.<br />
This procedure is important, as it is by this that the SIM knows what the ME is capable of, and the SIM<br />
can then limit its instruction range accordingly. If no command is sent by the ME, the SIM shall assume that<br />
the ME does not support SIM Application Toolkit.<br />
5.2 Structure and coding of TERMINAL PROFILE<br />
Direction: ME to SIM<br />
The command header is specified in <strong>GSM</strong> 11.11 [14].<br />
Command parameters/data:<br />
- Profile:<br />
Description Section M/O Length<br />
Profile - M lgth<br />
Contents: The list of SIM Application Toolkit facilities that are supported by the ME.<br />
Coding:<br />
1 bit is used to code each facility:<br />
bit = 1: facility supported by ME<br />
bit = 0: facility not supported by ME<br />
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