Besides certificates, the PIV applet stores a number of standard data objects. The table below lists each object with its tag and capacity.
| Tag | Data object | Capacity | Read access |
|---|---|---|---|
5FC102 |
Card Holder Unique Identifier (CHUID) | 2916 bytes | Public |
5FC107 |
Card Capability Container | 287 bytes | Public |
5FC109 |
Printed Information | 245 bytes | PIN |
5FC106 |
Security Object | 245 bytes | Public |
5FC103 |
Cardholder Fingerprints | 512 bytes | PIN |
5FC108 |
Cardholder Facial Image | 512 bytes | PIN |
5FC121 |
Cardholder Iris Images | 512 bytes | PIN |
5FC10C |
Key History | 32 bytes | Public |
5FFF00 |
Admin Data | 128 bytes | Public |
Reading Printed Information, Cardholder Fingerprints, Cardholder Facial Image, or Cardholder Iris Images requires PIN verification. Writing any of these objects requires management-key authentication. Optional objects consume storage only after data is written to them.
Certificate objects, including the Retired Key Management certificate objects supported from firmware version 3.1.1, are described in Certificates.