Siemens MC55 AT manual 3445566778899AABBCCDDEEFF, Sxsm

<sw1>(num)

Status information from the SIM about the execution of the actual command. It is returned in both cases, on suc- cessful or failed execution of the command.

0...255

<sw2>(num)

Status information from the SIM about the execution of the actual command. It is returned in both cases, on suc- cessful or failed execution of the command.

0...255

<response>(str)

Response in case of a successful completion of the previously issued SIM command.

If <command>=136 (RUN GSM ALGORITHM):

MC55 returns SRES and cipher key Kc as calculated by the SIM.

Byte(s)		Description	Length
1	- 4	SRES - Signed RESponse	4
5	- 12	Kc - Cipher Key	8

Example

Use <command>=136 (RUN GSM ALGORITHM) to obtain SRES and cipher key Kc values as calculated by the SIM.

at^sxsm=136,,0,0,16,"0011223	Start SIM command "RUN GSM ALGORITHM" with 16 byte random
3445566778899AABBCCDDEEFF"	number.
^SXSM:	SRES (bytes 1-4) and Cypher Key Kc (bytes 5-12) values as returned
144,0,00112233445566778899AA	by the SIM.
BB
OK

MC55_ATC_V04.00	Page 371 of 475	3/17/06
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