Ali, Thanks for your reply,
The Crypto Template (defined by TCG) has the methods to generate the Random Numbers on the ASIC which is part of the FDE.2 HDD. Much like TPM, the encryption keys are generated on the chip and never have to leave the chip. There is no involvement of the software in the generations of the keys. --->> but based on this random generator function you mentioned, to generated the encryption keys usually requires a seed parameter to sucessfully generate a random sequence of string on firmware which sits in the asic chip am I correct? If so, where does the ASIC chip derive its seed on a hdd which is a static h/w platform? --->> Also, what type of encryption is used in Seagate momentus? ------- Warmest regards, Derrick Heng Biometrics Division BioSlimDisk www.bioslimdisk.com ---------------------- Ali, Saqib wrote: > On 7/29/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > >> You still need a software for the PIN to create an encryption key am I >> correct? So whats the difference between a software-base FDE and >> seagates momentus hardware-based? >> > > Seagate FDE.2 Momentus implements the "Trusted Storage Specifications" > as defined by the Trusted Computer Group. See: > https://www.trustedcomputinggroup.org/specs/Storage/ > > The Crypto Template (defined by TCG) has the methods to generate the > Random Numbers on the ASIC which is part of the FDE.2 HDD. Much like > TPM, the encryption keys are generated on the chip and never have to > leave the chip. There is no involvement of the software in the > generations of the keys. > > The software-based FDE solutions use the CPU to perform the > cryptographic functions, so they encryption key has to travel from the > HDD to memory to CPU in some fashion. Whereas in the Seagate FDE.2 > Momentus, the encryption is performed by the ASIC on the HDD, thus the > keys never have to leave the HDD. > > saqib > http://www.linkedin.com/in/encryption > _______________________________________________ > FDE mailing list > [email protected] > http://www.xml-dev.com/mailman/listinfo/fde > > _______________________________________________ FDE mailing list [email protected] http://www.xml-dev.com/mailman/listinfo/fde
