ACG HF Multi ISO RFID Reader - RFID Webshop
ACG HF Multi ISO RFID Reader - RFID Webshop
ACG HF Multi ISO RFID Reader - RFID Webshop
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<strong>ACG</strong> <strong>HF</strong> <strong>Multi</strong> <strong>ISO</strong> <strong>RFID</strong> <strong>Reader</strong> V1.0<br />
12.4.3.4 DES encryption / decryption of data<br />
This command returns 8 bytes of encrypted / decrypted data.<br />
Command<br />
Command<br />
'ds'<br />
Data<br />
Options (1 byte)<br />
Key (8/16 bytes) / Key Number (1 byte)<br />
Data (8 byte)<br />
Answer<br />
Answer<br />
Data<br />
Description<br />
Encrypted / Decrypted data (8 bytes)<br />
Option byte<br />
Option byte<br />
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0<br />
RFU RFU RFU RFU RFU Encode<br />
Key<br />
Length<br />
Key<br />
Index<br />
Key Index<br />
If the Key Index is set, the command only needs the key number (1 byte) instead of<br />
the key (8/16 bytes).<br />
The key number corresponds to the key number used in the key management.<br />
Key Length<br />
If the Key Length is set, the command uses the TDES algorithm with 16-byte key.<br />
If cleared, the command uses the DES algorithm with 8-byte key.<br />
If key index is used the key length flag is valid.<br />
Encode<br />
Setting this flag encodes the data.<br />
Clearing this flag decodes the data.<br />
<strong>ACG</strong> Identification Technologies GmbH 63