AT88SA10HS-TSU-T Atmel, AT88SA10HS-TSU-T Datasheet - Page 5

• Manufacturer Part Number: AT88SA10HS-TSU-T
• Description: IC HOST AUTHENTICATION SOT23-3
• Manufacturer: Atmel
• Series: CryptoAuthentication™r
• Type: Authentication Chipr

Specifications of AT88SA10HS-TSU-T

• Applications: Networking & Communications
• Mounting Type: Surface Mount
• Package / Case: SOT-23-3
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Interface Type: 1 Wire
• Minimum Operating Temperature: - 40 C
• Number Of Timers: 1
• Program Memory Size: 72 bit
• Program Memory Type: ROM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8.
8663B–SMEM–3/09
Development System Anti-cloning
The AT88SC102S provides an exceptional method of preventing third parties from creating clones of evaluation and
development boards. To implement anti-cloning each evaluation or development board should be embedded with its
own AT88SC102S CryptoAuthentication device. The Integrated Development Environment (IDE) would then be
programmed to challenge the board prior to allowing the developer access to it. Counterfeiters will not be able to
replicate every possible occurrence of challenge and response that can be handled by a board containing a legitimate
CryptoAuthentication device, thereby thwarting common cloning attempts. In this model it would be beneficial to use
hard coded challenge and response pairs instead of integrating the algorithm and keys into the application code where
they would be vulnerable to attack. Providing a periodic method of renewing challenge-responses would increase
security by removing any existing compromise as each incremental application upgrade could replace the list of
challenge-response pairs. Figure 4 shows a graphical representation of the operation of this security model.
Figure 4.
Companies need to identify authentic boards prior to rendering technical support. An interface could be implemented
that would enable the user to enter any string of text that would in turn be feed to the CryptoAuthentication device on
the development board and the response displayed to user. The help desk operator could verify the system by
providing the user a custom string and asking them for the generated response. The call center operator would then be
able to verify the authenticity of the development board prior to rendering service to the customer.
Evaluation Board Authentication
CryptoAuthentication™ Product Uses
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