Security Protocol In Command
August 2016 Commands 215
Key-Associated Data Descriptors List
The key-associated data descriptors are only returned on Encryption Status 6h and in
the following Key Descriptor Type order.
RDMDS Raw decryption mode disabled status
0 = Not supported
Key-Associated Data
Descriptors List
The key-associated data descriptors are only returned on Encryption
Status 6h. The following key association descriptors are returned in the
Key Descriptor Type order:
Parameter Value
TABLE 3-164 Key-Associated Data Descriptors
Byte
Bit
76543210
0 Key Descriptor Type
1 Reserved Authenticated
2
thru
3
(MSB)
Key Descriptor Length in bytes (n-3)
(LSB)
4
thru
n
(MSB)
Key Descriptor
(LSB)
Parameter Value
Key Descriptor Type 00h = Unauthenticated key-associated data: U-KAD
01h = Authenticated key-associated data: A-KAD (not supported)
02h = Nonce value (not supported)
03h = Metadata key-associated data (not supported)
Authenticated 000b = Reserved
001b = The value in the key descriptor field is not covered by
authentication, for example: U-KAD
Key Descriptor Length For U-KAD = Up to 001Eh bytes