Authentication Failure - ngKSI already in use #307
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Signed-off-by: AshithaCDAC <ashitha@cdac.in>
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thakurajayL
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Oct 1, 2024
| @@ -1558,6 +1558,16 @@ func AuthenticationProcedure(ue *context.AmfUe, accessType models.AccessType) (b | |||
| ue.AuthenticationCtx = response | |||
| ue.ABBA = []uint8{0x00, 0x00} // set ABBA value as described at TS 33.501 Annex A.7.1 | |||
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| if ue.NgKsi.Tsc == models.ScType_NATIVE && ue.NgKsi.Ksi != 7 { | |||
| // As per the Specification 24.501 - 5.4.1.3.2 Authentication initiation by the network | |||
| if ue.NgKsi.Ksi < 6 { // ksi is range from 0 to 6 | |||
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ue.NgKsi.Ksi = (ue.NgKsi.Ksi +1) % 7
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Issue:
Authentication failure with cause ngKSI already in use
Troubleshoot:
Identified the root cause: the core includes the same ngKSI value from the Registration Request
in the Authentication request
Fix:
Updated the ngKSI value after the 5G AKA procedure
Supporting Data:
Authentication_fail_ngksi_already_in_use.zip