AT88RF04C-MY1G View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT88RF04C-MY1G

CryptoRF® Specification

Atmel Corporation 

AT88SC0808/1616/3216/6416CRF, AT88RF04C

Appendix I. Using Password Security

CryptoRF contains security options that can be enabled by the customer at personalization. By default no security is

enabled, allowing CryptoRF to operate as a simple RFID EEPROM memory. Enabling password security on a User

Zone restricts access to the data to users with knowledge of the password.

I.1. Communication Security

Communication between the PICC and reader operates in three security modes. The Normal mode allows

communication of all types of data in the clear. Authentication mode encrypts only passwords. Encryption mode

encrypts both user data and passwords. The default communication mode is Normal mode.

Table 74. CryptoRF Communication Security Options.

Communication Mode

User Data

Normal

Clear

Authentication

Clear

Encryption

Encryption

System Data

Clear

Clear

Clear(1)

Passwords

Clear

Encryption

Encryption

Note: 1. 88RF PICCs support an encryption option for programming secrets. See Appendix F.

As shown in Table 74, passwords sent by the Host to CryptoRF in Normal Communication Security mode are

communicated in the clear, without being encrypted. In the Authentication or Encryption Communication Security

modes passwords are encrypted.

I.2. Transport Password

The Transport Password protects the Configuration Memory contents on all CryptoRF devices from accidental

changes. All CryptoRF devices are shipped from Atmel with a Transport Password stored in password register Write 7.

No changes to the Configuration Memory are permitted unless the Transport Password has been verified using the

Check Password command.

Table 75. CryptoRF Family Password Characteristics and Transport Passwords

CryptoRF

Part Number

Password Sets

Set Number

Transport Password

PW Index

Password

AT88RF04C

4 Sets

0,1,2,7

$07

$30 1D D2

AT88SC0808CRF

8 Sets

0,1,2,3,4,5,6,7

$07

$40 7F AB

AT88SC1616CRF

8 Sets

0,1,2,3,4,5,6,7

$07

$50 44 72

AT88SC3216CRF

8 Sets

0,1,2,3,4,5,6,7

$07

$60 78 AF

AT88SC6416CRF

8 Sets

0,1,2,3,4,5,6,7

$07

$70 BA 2E

5276C–RFID–3/09

101

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