hyper Posted April 25, 2006 Share Posted April 25, 2006 We're doing a paper on Apple and TPM. And after digging around various forums, white papers and specifications it seems that the TPM can be used to encrypt data on a computer using a combination of code generated from hardware and information (private key,etc) found in the PCR inside the module. When the same data lateron need to be decrypted the TPM decrypts the data and then compares the added hardware signatures with the one present on the current system, so that if something in the hardware has changed the TPM will refuse to hand out that data. So, what happens if you change hardware, your graphic card for instance.. Is all your encrypted data lost? If anyone familiar with TPM could sheed some light on this it would be greatly appreciated. Link to comment https://www.insanelymac.com/forum/topic/15976-tpm-and-change-of-hardware/ Share on other sites More sharing options...
indigo196 Posted November 27, 2007 Share Posted November 27, 2007 TPM was used by PC manufacturers before Apple started using it. The only way you would lose data is if the MB went dead and you tried moving your HD to another motherboard... though there are some ways around that (enterprise level stuff).... most end users would not have access to that. Changing your video card or other components would not be an issue though. Link to comment https://www.insanelymac.com/forum/topic/15976-tpm-and-change-of-hardware/#findComment-520356 Share on other sites More sharing options...
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