AT88SC3216CRF-MVB1G Atmel, AT88SC3216CRF-MVB1G Datasheet - Page 106

• Manufacturer Part Number: AT88SC3216CRF-MVB1G
• Description: CRYPTOMEMORY 32KBIT 16ZONE MVB
• Manufacturer: Atmel
• Series: CryptoMemory®, CryptoRF®r

Specifications of AT88SC3216CRF-MVB1G

• Rf Type: Read / Write
• Frequency: 13.56MHz
• Features: ISO1444-2, 1444-3, 32-kbits
• Package / Case: MVB Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Appendix J.
J.1.
J.2.
106
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 Authentication Communication
Security on a User Zone restricts access to the data to users with knowledge of the Authentication key.
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 Communication Security mode encrypts only passwords.
Encryption Communication Security mode encrypts both user data and passwords. The default communication mode is
Normal mode.
Table 81.
Note:
Authentication Communication Security is activated by performing Mutual Authentication between the Host system and
the PICC using the Verify Crypto command. Once activated, the PICC will remain in Authentication mode until a
security error occurs, a new Verify Crypto command is received, RF power is removed, or a DESELECT command or
IDLE command is received.
Authentication Security Options [88SC]
Authentication Communication Security for a User Zone is enabled by programming the Access Register (AR) and
Password Register (PR) for the zone. The Communication Security Mode (M) bits [AM1, AM0, ER] of the Access
Register determine the Communication Security requirements for the User Zone. The Password Register determines
which Key Set(s) are used to access the User Zone. Configuration of the AR and PR registers is described in
Appendix H.
Table 82.
Table 82 shows the three 88SC PICC Authentication Communication Security options, plus the default setting. By
default M = 111b and no Authentication or Encryption Activation is required to access the user memory.
AT88SC0808/1616/3216/6416CRF, AT88RF04C
Normal
Authentication
Encryption
AM1
Communication Mode
0
0
1
1
1. 88RF PICCs support an encryption option for programming secrets. See Appendix F.
AM0
Using Authentication Communication Security
0
1
0
1
CryptoRF Communication Security Options.
Selecting Authentication using the Communication Security Mode bits of the Access Register.
ER
1
1
1
1
Dual Access Authentication Mode
Authentication for Read / Write
Authentication for Write
No Authentication or Encryption Required
Communication Security Mode
Encryption
User Data
Clear
Clear
System Data
Clear
Clear
Clear
Read / Write Access
Read / Write Access
Read / Write Access
Auth. Key (AK)
(1)
N/A
Pgm-Only Key (POK)
Read / Program Access
Passwords
Encryption
Encryption
Clear
N/A
N/A
N/A
5276C–RFID–3/09