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## Summary
<!-- Provide a brief summary of the changes you have made and most
importantly what they aim to achieve -->
Fixes mTLS client certificate sharing across multiple servers when the
same .p12 / SecIdentity is assigned to more than one server.
- Store imported client certificate identities using a stable SHA-256
fingerprint of the leaf certificate instead of a server-specific
identifier.
- Update duplicate Keychain identity handling so re-importing the same
certificate migrates the existing item to the stable fingerprint-based
label.
- Avoid deleting a shared Keychain identity when removing or replacing a
certificate on one server if another configured server still references
it.
## Screenshots
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## Link to pull request in Documentation repository
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Documentation: home-assistant/companion.home-assistant#
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## Summary
<!-- Provide a brief summary of the changes you have made and most
importantly what they aim to achieve -->
Avoid passing an explicit empty passphrase to SecPKCS12Import on macOS
by introducing ClientCertificateManager.pkcs12ImportOptions(password:).
importP12 now uses this helper so an empty password results in no
passphrase option being supplied. Added unit tests verifying both empty
and non-empty password behavior and imported Security in the test file.
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Documentation: home-assistant/companion.home-assistant#
## Any other notes
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## Summary
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importantly what they aim to achieve -->
## Screenshots
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## Link to pull request in Documentation repository
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Documentation: home-assistant/companion.home-assistant#
## Any other notes
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## Summary
<!-- Provide a brief summary of the changes you have made and most
importantly what they aim to achieve -->
Attempt to copy the leaf certificate from the SecIdentity using
SecIdentityCopyCertificate and include it in the URLCredential
certificates array when successful. This ensures TLS client-auth sends a
non-empty certificate list; if copying fails we log a warning and fall
back to an identity-only credential.
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Documentation: home-assistant/companion.home-assistant#
## Any other notes
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## Summary
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importantly what they aim to achieve -->
This PR works in combination with
https://github.com/home-assistant/HAKit/pull/96 to provide the missing
certificate evaluation when executing commands through the rest API
while using mTLS
## Screenshots
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## Any other notes
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---------
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>