A question regarding 3g root key computation

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Autumn-Fox's Avatar (by Gravatar) posted on
September 15, 2005, 10:46 am
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The base station shall compute the Root Key RK = SHA-1 (0x00000003 |
0x00000C8010 | BS_PARAM | BS_PARAM),
where BS_PARAM =BS_PW| (MS_RESULTs/MS_PW_HASH) modulo P | G^Y modulo P
| ((MS_RESULTs/MS_PW_HASH)^Y) modulo P. The base station shall use the
least significant 128 bits of the result RK as the Root Key K.


The "/" in MS_RESULTs/MS_PW_HASH confused me a lot . Does it mean
division?
if it does,  we know MS_RESULT = 1024 bits, MS_PW_HASH =1152 bits, so
we get MS_RESULTs/MS_PW_HASH = 0. Am I right?
Hope someone can give me some information on this one.



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