id	definition
KD	Data Key
KK	Key - Encrypting Key
CTA	Count, "A"
CTB	Count, "B"
CTP	Count, Pair
CTR	Count, "R"
EDC	Error Detection Code
ERF	Error Field
IDA	Identity of Key for Authentication
IDC	Identity of Key Distribution Center (CKD) or Key Translation Center (CKT)
IDD	Discontinued Key Name
IDU	Identity of Ultimate Recipient (the Security Recipient)
KDU	Data Key, Notarized
KKU	Key - Encrypting Key Notarized
MAC	Message Authentication Code
NOS	Notarization Flag
PKK	Key - Encrypting Key Pair (*KK)
SVR	Service Request
TID	Transaction Identification Number
PKKU	Key - Encrypting Key Pair, Notarized (*KKU)
SUBF	Subfield of Previous Field Tag