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This process, often called wrapping or binding a key, can help protect the key from disclosure. Each TPM has a master wrapping key, called the storage root key, which is stored within the TPM itself. User-level RSA key containers are stored with the Windows user profile for a particular user and can be used to encrypt and decrypt information ...
The loaded off-chip modules will initialize DRAM and perform platform initialization. Using the previous data structures the off-chip firmware finds UEFI firmware within the SPI ROM and copies it over to DRAM, it may perform additional verification steps and if the system is deemed secure, it will release the x86 cores from their reset state ...
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. [16]
The best mitigation, according to the authors, is to generate RSA keys using a stronger method, such as by OpenSSL. If that is not possible, the ROCA authors suggest using key lengths that are less susceptible to ROCA such as 3936-bit, 3072-bit or, if there is a 2048-bit key size maximum, 1952-bits. [3]: Sec 5.1
The key used for disk encryption is sealed (encrypted) by the TPM chip and will only be released to the OS loader code if the early boot files appear to be unmodified. The pre-OS components of BitLocker achieve this by implementing a Static Root of Trust Measurement—a methodology specified by the Trusted Computing Group (TCG).
The ThinkPad L series is a line of notebook computers from Lenovo as part of the ThinkPad family. As opposed to the ThinkPad T and X series, the L series has an added focus on economy and value; [1] they are the entry-level range for enterprise use, [2] and are also used by students. [3]
In addition to the ThinkPad and IdeaPad laptops, Lenovo also offers a value-priced series of laptops. [1] Called ‘Essential’ on the Lenovo website, the products available in this line include the G Series, B Series, and V Series. [2] Launched in 2009, the first laptop in the Essential range was the G530. [1]
ThinkPad is a line of business-oriented laptop and tablet computers produced since 1992. The early models were designed, created and manufactured by International Business Machines (IBM) until it sold its PC business to Lenovo in 2005; since 2007, all new ThinkPad models have been branded Lenovo instead [5] and the Chinese manufacturer has continued to develop and sell ThinkPads to the present ...