4.4.1.3.2.3 IPMK and CMK
The PRF+ function generates 60 octet output out of which the most significant 40 octets denote the IPMK and the rest (20 octet) denote the CMK. With all the required information as described above for PRF+ function the computed T1, T2 and T3 appear as follows:
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T1 = 3A 91 1C 25 54 73 E8 3E 9A 0C C3 33 AE 1F 8A 35 CD C7 41 63 T2 = E7 F6 0F 6C 65 EF 71 C2 64 42 AA AC A2 B6 F1 EB 4F 25 EC A3 T3 = 33 55 35 3B 69 20 D0 74 C7 82 E4 75 DF B0 99 9D 4D B4 67 EB IPMK = T1 | T2 CMK = T3
The generated CMK and the HMAC data are passed through the HMAC-SHA1-160 operation to generate the Compound MAC. The Compound MAC obtained from HMAC-SHA1-160 operation is as follows:
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0C BF 10 5E 91 75 57 48 22 4F BB 83 00 06 26 91 1C FB 1B 0F
After all the above computations the Cryptobinding TLV request from server appears as follows:
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00 0C 00 38 00 00 00 00 BD A7 A5 99 FA 81 65 21 AD 30 64 C2 BD DB D1 6E AA 94 9E 7D 98 A8 D7 94 31 47 CF 42 5D 85 DA 7B 0C BF 10 5E 91 75 57 48 22 4F BB 83 00 06 26 91 1C FB 1B 0F