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A fix was proposed, which has been adopted in the specifications for TPM 2.0. In 2009, the concept of shared authorisation data in TPM 1.2 was found to be flawed. An adversary given access to the data could spoof responses from the TPM. [67] A fix was proposed, which has been adopted in the specifications for TPM 2.0.
In 2019, a Berlin-based security group discovered the off-chip firmware in ordinary UEFI image files (the code that boots up the operating system), which meant that it could be easily analyzed. By using a few hand-written Python -based tools, they found that the off-chip firmware from the SPI ROM contained an application resembling an entire ...
The endorsement key is a 2048-bit RSA public and private key pair that is created randomly on the chip at manufacture time and cannot be changed. The private key never leaves the chip, while the public key is used for attestation and for encryption of sensitive data sent to the chip, as occurs during the TPM_TakeOwnership command.