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This adds support for all four algorithms defined in NIST SP800-232.

This PR builds on #253, as it relies on the new XOF API that is added there. Commits related to this PR start at 814719b.

Fixes #60

* Add psa_xof_operation_t and its functions.
* Add SHAKE128 and SHAKE256 XOF algorithms.
@athoelke athoelke added this to the Crypto API 1.4 milestone Sep 12, 2025
@athoelke athoelke self-assigned this Sep 12, 2025
@athoelke athoelke added enhancement New feature or request API design Related the design of the API Crypto API Issue or PR related to the Cryptography API labels Sep 12, 2025
@athoelke athoelke moved this to In Progress in PSA Certified API development Sep 12, 2025
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@MarcusJGStreets MarcusJGStreets left a comment

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Seems to be the obvious shape.

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Ascon Algorithm Identifiers
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