AT88SA10HS-TSU-T Atmel, AT88SA10HS-TSU-T Datasheet - Page 7

• 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

10.
8663B–SMEM–3/09
USB Security Dongles
The AT88SA102S can enable security for a web application using an individualized USB dongle. This would provide
web shopping, banking, and private member sites the ability to restrict user logon and usage to one individual and
ensure that the user’s device is physically present before allowing them access to resources. This is extremely secure
because unique challenges could be generated by the remote web application for each use. Since each challenge is
unique and no challenges are stored on the user’s machine, replay attacks would be impossible. Figure 6 shows how
the AT88SA102S would be used in a USB dongle to secure web or software applications.
Figure 6.
Protecting PC software applications from pirating is an ongoing struggle for any company producing software products.
The AT88SA102S also enables an affordable and secure dongle solution for software. A single AT88SA102S
CryptoAuthentication on a USB dongle can be used by an application to verify that the user is present and that only
one user can use the software. This can be implemented by coding the challenge and responses into the software
application and periodically sending a challenge to the attached device during the applications operation. The correct
response from the CryptoAuthentication verifies that the user’s hardware device is present. Since the AT88SA102S
holds the key securely in hardware, the effort level required to circumvent the hardware security will outweigh the
benefit received.
Prevent Unlicensed Software
CryptoAuthentication™ Product Uses
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