JavaCard OS

Inside the data field of Manage Security Environment APDU command, I have to put key reference of the authentication key. Beside authentication key, I also have signing key and the decryption key. From where that key reference value is read. Do somebody know how can I get this key referebce value? Thanks

You may need to have a look at ISO7816-4 specification, table 42 : "Table 42 — Control reference DOs in control reference templates" for more details.