Implement AArch64 optimisation for SHA-256

Mbed-TLS / mbedtls

An open source, portable, easy to use, readable and flexible TLS library, and reference implementation of the PSA Cryptography API. Releases are on a varying cadence, typically around 3 - 6 months between releases.

https://www.trustedfirmware.org/projects/mbed-tls/

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Implement AArch64 optimisation for SHA-256 #5028

Closed tom-cosgrove-arm closed 2 years ago

tom-cosgrove-arm commented 3 years ago

Need to consider:

intrinsics vs inline assembler;
consider configuration options:
- should we assume Neon always available, so switch to Neon-only, or run-time selectable?

volodymyr-gnidenko-mobica commented 2 years ago

Is this task in progress?