Technical Information C23-SATA • PCIe to SATA RAID Controller Mezzanine Card
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Trusted Platform Module
The C23-SATA can be optionally equipped with a Trusted Platform Module cryptographic chip
according to the TPM 1.2 specification. The board provides a universal footprint which is suitable for
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SLB9635 (Infineon www.infineon.com/tpm)
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AT97SC3203 (Atmel www.atmel.com)
and other brands. The TPM chip communicates with the CPU carrier board through the LPC interface.
Recent operating systems such as Windows Vista and Linux provide TPM software support.
Typically, TPM chip manufacturers provide the necessary device driver software for integration into
special operating systems, along with BIOS drivers. Full documentation for TCG primitives can be
found in the TCG TPM Main Specification, Parts 1 – 3, on the TCG website located at
https://www.trustedcomputinggroup.org/. TPM features specific to PC Client platforms are specified
in the “TCG PC Client Specific TPM Interface Specification, Version 1.2”, also available on the TCG web
site. Implementation guidance for 32-bit PC platforms is outlined in the “TCG PC Client Specific
Implementation Specification for Conventional BIOS for TCG Version 1.2”, also available on the TCG
web site.
Atmels TPM includes a cryptographic accelerator capable of computing a 2048-bit RSA signature in
500 ms and a 1024-bit RSA signature in 100ms. Performance of the SHA-1 accelerator is 50us per
64-byte block. TCG key generation operations will be completed using a proprietary mechanism in less
than 1 msec. The TPM is offered to OEM manufacturers as a turnkey solution, including the firmware
integrated on the chip.
Infineons security controllers have achieved the industry's highest rating for digital security, the
Common Criteria EAL 5 high Certificate issued by the German government agency responsible for
security in information technology. Infineon provides OEMs with a complete TCG solution that
includes all required hardware, software, and management utilities to develop a complete platform
security solution.
