4.2.46 EFCMI (Comparison Method Information)
31.1023GPPCharacteristics of the Universal Subscriber Identity Module (USIM) applicationRelease 17TS
If service n° 6 is "available", this file shall be present.
This EF contains the list of Comparison Method Identifiers and alpha-tagging associated with BDN entries (see EFBDN).
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Identifier: ‘6F58’ |
Structure: linear fixed |
Optional |
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Record length: X+1 bytes |
Update activity: low |
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Access Conditions: READ PIN UPDATE ADM DEACTIVATE ADM ACTIVATE ADM |
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Bytes |
Description |
M/O |
Length |
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1 to X |
Alpha Identifier |
M |
X bytes |
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X+1 |
Comparison Method Identifier |
M |
1 byte |
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– Alpha Identifier.
Contents:
Alpha-tagging of the associated Comparison Method Identifier.
Coding:
Same as the alpha identifier in EFADN.
‑ Comparison Method Identifier.
Contents:
– this byte describes the comparison method which is associated with a BDN record. Its interpretation is not specified but it shall be defined by the card issuers implementing the BDN feature on their USIMs.
Coding:
– binary; values from 0 to 255 are allowed.
The default coding 255 is reserved for empty field.