TAGnology_TAGid -125kHz_Protocol.pdf - RFID Webshop
TAGnology_TAGid -125kHz_Protocol.pdf - RFID Webshop
TAGnology_TAGid -125kHz_Protocol.pdf - RFID Webshop
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Communication Reader-Host Rev. 1.2 February 1999<br />
3.7.13 HT1_Mutual_Authent<br />
Carries out the full authentication procedure between the transponder and the read/write device.<br />
After this mutual authentication you are allowed to edit areas which can only be accessed in<br />
Crypto Mode.<br />
Using -keyinfo- you can choose between Key/Logdata Set A and B.<br />
Use a Plain command (that is still encrypted), HFReset or GetSnr (resets the already selected<br />
transponder) to exit this mode.<br />
C-Function: void HT1_Mutual_Authent (BYTE_T keyinfo);<br />
Header-File: Hitag1.H<br />
Serial protocol:<br />
HOST - READ/WRITE DEVICE<br />
0x03 'A' keyinfo BCC<br />
keyinfo:<br />
0x00 ... Key/Logdata Set A<br />
0x01 ... Key/Logdata Set B<br />
READ/WRITE DEVICE - HOST<br />
0x02 Status BCC<br />
Status: 0 ... no error<br />
-1 ... SERIAL ERROR<br />
-7 ... AUTHENTICATION ERROR<br />
Protokoll HTRM801 V1.2/C Page 28 (107)