tpm trusted platform module

Hi, I figure that TPM is a module and can be dropped into any chip that can placed on the motherboard. Question is :-Can I purchase a broadcom's network adapter which has the TPM module dropped into its chip and use it for the Vista hardware security. I have a hardware running Vista and I want to enable TPM on it by doing a minor upgrade. I have successfully used BitLocker with USB keys though.
Thanks, Vipin

There are a number of manufacturers using the Broadcom TPM on their motherboard. However a removable TPM device (say on a PCI card) does not provide the hardware security necessary even if the motherboard BIOS supported it. One of the primary security features utilized by the motherboard TPM is that it strongly binds secrets to the motherboard & firmware creating what is called a "Core Root of Trust" without which, any subsequent "Static Root of Trust Measurement" is void. - Jamie Hunter [MS]
"Vipin" wrote in message

Hi, I figure that TPM is a module and can be dropped into any chip that can placed on the motherboard. Question is :-Can I purchase a broadcom's network adapter which has the TPM module dropped into its chip and use it for the Vista hardware security. I have a hardware running Vista and I want to enable TPM on it by doing a minor upgrade. I have successfully used BitLocker with USB keys though.
Thanks, Vipin