pmk at (no spam) hrpd.3gpp2...

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pmk at (no spam) hrpd.3gpp2...

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karthikbalaguru...

Posted: Fri Oct 23, 2009 7:24 pm

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Hi,

The separates the 512 bits of generated MSK into four
equal portions of 128 bits each, i.e., four Sub-MSKs.
The UE shall use each Sub-MSK to generate the four PMKs.
PMK1 = HMAC-SHA-256(Sub-MSK, pmk at (no spam) hrpd.3gpp2,0x01),[0:127]

But,
Kindly let me know the reason for specifically using the
"pmk at (no spam) hrpd.3gpp2" in HMAC-SHA-256 in CDMA2000 HRPD.
Why not another kind of string ?

Thx in advans,
Karthik Balaguru

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