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<a href="https://gitlab.com/pmgdeb">Pedro Monreal</a>

<a href="https://gitlab.com/gnutls/gnutls/-/issues/1311#note_889426382">commented</a>:

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<p dir="auto">Since gnutls_hkdf_extract() is only called from lib/secrets.c:_tls13_update_secret(), we can push a new FIPS context before calling gnutls_hkdf_extract(). After it returns, we can pop the context and check the return state.</p>

<p dir="auto">Here is a patch with its possible implementation:</p>

<p dir="auto"><a href="https://gitlab.com/gnutls/gnutls/uploads/367b3311d71b5dc58bae0656e9ad669d/gnutls-FIPS-mark-HKDF-approved-in-TLS-context.patch" data-canonical-src="/uploads/367b3311d71b5dc58bae0656e9ad669d/gnutls-FIPS-mark-HKDF-approved-in-TLS-context.patch" data-link="true" class="gfm">gnutls-FIPS-mark-HKDF-approved-in-TLS-context.patch</a></p>

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