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attest: Add attest_len & attest ops. #1591

Merged
merged 2 commits into from
Jan 23, 2024
Merged

attest: Add attest_len & attest ops. #1591

merged 2 commits into from
Jan 23, 2024

Commits on Jan 23, 2024

  1. attest: Add attest_len & attest ops. 

    Calling the `attest` op will cause the `Attest` task to produce the
signature: `sign(alias_priv, sha3_256(hubpack(log) | nonce))`. The
caller can then use other ops from the `Attest` task to verify the
signature.
    @flihp
    flihp committed Jan 23, 2024
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  2. sprot: plumbing for attest & attest_len 

    This is the first op supported by sprot that takes both a read and a
write lease. Following the existing structure of `handle_request` we add
a new `Attest` variant to the TrailingData enum where we store the
appropriately sized slice that holds the read lease. As a result we must
be more explicit about the lifetimes in the `handle_request` method
because it's return value no longer has the same lifetime as the `self`
param (3rd lifetime elision rule).

The rest is pretty straight forward with the call to `Attest::attest`
happending in the match arm for this new `TrailingData` variant.
    @flihp
    flihp committed Jan 23, 2024
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