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    SubjectRe: [PATCH AUTOSEL 5.7 03/30] ima: extend boot_aggregate with kernel measurements
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    On 12/12/2020 9:22 PM, Mimi Zohar wrote:
    > Ok. Going forward, it sounds like we need to define a new
    > "boot_aggregate" record. One that contains a version number and PCR
    > mask.

    Just BTW, there is a TCG standard for a TPM 2.0 PCR mask that works
    well.

    There is also a standard for an event log version number. It is
    the first event of a TPM 2.0 event log. It is strange.

    One useful field, though, is a mapping between the algorithm ID (e.g.,
    sha256 is 0x000b) and the digest size (e.g., 32 bytes). This permits
    a parser to parse a log even when it encounters an unknown digest
    algorithm.



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