Section: A.7.0 Parameters for the input S to the KDF
Content: When deriving a KAMF from KSEAF the following parameters shall be used to form the input S to the KDF. - FC = 0x6D - P0 = IMSI or NAI or GCI or GLI - L0 = P0 length - number of octets in P0 - P1 = ABBA parameter - L1 = P1 length - number of octets in P1 The input key KEY shall be the 256-bit KSEAF. For P0, when the SUPI type is IMSI, P0 shall be set to IMSI as defined in clause 2.2 of TS 23.003[ Numbering, addressing and identification ]  [19]. For P0, when the SUPI type is network specific identifier, the P0 shall be set to Network Access Identifier (NAI) as defined in clause 28.7.2 of TS 23.003[ Numbering, addressing and identification ]  [19]. When the SUPI type is GLI, P0 shall be set to GLI taking format of NAI as defined in clause 28.16.2 of TS 23.003[ Numbering, addressing and identification ]  [19]. When the SUPI type is GCI, P0 shall be set to GCI taking format of NAI as defined in clause 28.15.2 of TS 23.003[ Numbering, addressing and identification ]  [19]. P0 shall be represented as a character string as specified in B.2.1.2 of TS 33.220[ Generic Authentication Architecture (GAA); Generic Bootstrapping Architecture (GBA) ]  [28], for both SUPI types. For ABBA parameter values please refer to clause A.7.1.