User's Manual

ACG HF Multi ISO RFID Reader V1.0
ACG Identification Technologies GmbH 97
12.4.4.4 Login (authenticate tag)
Performs an authentication in order to access one sector of a mifare
®
card. Only one
sector can be accessed at a time.
Command
Command Data
'l' Sector (1 byte), valid range 00h - 3Fh
Key type (1 byte)
AAh authenticate with key type A
FFh authenticate with key type A, transport key
FFFFFFFFFFFFh
BBh authenticate with key type B
10h … 2Fh authenticate with key type A using stored
key (00h … 1Fh)
30h … 4Fh authenticate with key type B using stored
key (00h … 1Fh)
Key (6 bytes) / <CR> (1 byte), optional
By transmitting <CR> instead of the keydata
authentication is done with manufacturer’s transport
keys (A0A1A2A3A4A5h, B0B1B2B3B4B5h,
FFFFFFFFFFFFh).
Answer
Answer Description
data Login status (1 byte)
'L' Login success
'F' Error: General failure
'N' Error: No tag
'O' Error: Operation mode failure
'R' Error: Out of range
'X' Error: Authentication failed