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Restyle Move TI hardware acceleration into Matter repo #10030

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@restyled-io restyled-io bot commented Sep 28, 2021

A duplicate of #9579 with additional commits that automatically address
incorrect style, created by Restyled.

⚠️ Even though this PR is not a Fork, it contains outside contributions.
Please review accordingly.

Since the original Pull Request was opened as a fork in a contributor's
repository, we are unable to create a Pull Request branching from it with only
the style fixes.

The following Restylers made fixes:

To incorporate these changes, you can either:

  1. Merge this Pull Request instead of the original, or

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    the original Pull Request

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    git remote add upstream https://github.com/project-chip/connectedhomeip.git
    git fetch upstream pull/<this PR number>/head
    git merge --ff-only FETCH_HEAD
    git push
    ```
    

NOTE: As work continues on the original Pull Request, this process will
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srickardti and others added 14 commits September 9, 2021 22:36
Moved the SHA, AES, and ECJPAKE alt headers and source files into the Matter
repository. Fixed an issue with the semantics of SHA256 context cloning.
Changed the CHIPCryptoPALmbedTLS.cpp implementation to clone the temporary
context back over the original context when done with the non-final
finalization. Increased the SHA context opaque size in CHIPCryptoPAL.h to fit
the TI driver accelerated SHA context.

In future commits it may be possible to share a single SHA driver instance
between all the contexts in mbedtls. This has the disadvantage of requiring a
mutex for driver usage and reference counting. This would also increase
processing time due to the thrashing of the internal digest buffer. But has the
potential advantage that the SHA context can be copied directly with a memcpy.
The TI BLE Manager Impl incorrectly included a header that required cpp linkage.
The Hash_SHA256_stream object is now created on the stack and let to fall out
of context at the end of a translation unit. This causes an issue if the
resources are not freed. Update the mbedtls PAL to initialize and free the
underlying SHA context structure.
@restyled-io restyled-io bot added the restyled label Sep 28, 2021
@restyled-io restyled-io bot closed this Sep 28, 2021
@restyled-io restyled-io bot deleted the restyled/pull-9579 branch September 28, 2021 18:27
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