From f449f278dd3c70e479a035f50a9bb817a9b433ba Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 17:24:08 +0200
Subject: Adding upstream version 3.2.6.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
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+.. highlight:: none
+.. _Appendices:
+
+**********
+Appendices
+**********
+
+.. _compatible_pkcs11_devices:
+
+Compatible PKCS #11 Devices
+===========================
+
+This section has informative character. Knot DNS has been tested with several
+devices which claim to support PKCS #11 interface. The following table
+indicates which algorithms and operations have been observed to work. Please
+notice minimal GnuTLS library version required for particular algorithm
+support.
+
+.. |yes|     replace:: **yes**
+.. |no|      replace:: no
+.. |unknown| replace:: ?
+
+.. list-table::
+   :header-rows: 1
+   :stub-columns: 1
+
+   * -
+     - Key generate
+     - Key import
+     - ED25519 256-bit
+     - ECDSA 256-bit
+     - ECDSA 384-bit
+     - RSA 1024-bit
+     - RSA 2048-bit
+     - RSA 4096-bit
+   * - `Feitian ePass 2003 <https://www.ftsafe.com/Products/PKI/Standard>`_
+     - |yes|
+     - |no|
+     - |no|
+     - |no|
+     - |no|
+     - |yes|
+     - |yes|
+     - |no|
+   * - `SafeNet Network HSM (Luna SA 4) <https://safenet.gemalto.com/data-encryption/hardware-security-modules-hsms/luna-hsms-key-management/luna-sa-network-hsm/>`_
+     - |yes|
+     - |no|
+     - |no|
+     - |no|
+     - |no|
+     - |yes|
+     - |yes|
+     - |yes|
+   * - `SoftHSM 2.0 <https://www.opendnssec.org/softhsm/>`_ [#fn-softhsm]_
+     - |yes|
+     - |yes|
+     - |yes|
+     - |yes|
+     - |yes|
+     - |yes|
+     - |yes|
+     - |yes|
+   * - `Trustway Proteccio NetHSM <https://atos.net/en/solutions/cyber-security/data-protection-and-governance/hardware-security-module-trustway-proteccio-nethsm>`_
+     - |yes|
+     - ECDSA only
+     - |no|
+     - |yes|
+     - |yes|
+     - |yes|
+     - |yes|
+     - |yes|
+   * - `Ultra Electronics CIS Keyper Plus (Model 9860-2) <https://www.ultra.group/our-business-units/intelligence-communications/cyber/key-management/#acc-keyperplus>`_
+     - |yes|
+     - RSA only
+     - |no|
+     - |yes|
+     - |yes|
+     - |yes|
+     - |yes|
+     - |yes|
+   * - `Utimaco SecurityServer (V4) <https://hsm.utimaco.com/products-hardware-security-modules/general-purpose-hsm/securityserver-cse/>`_ [#fn-utimaco]_
+     - |yes|
+     - |yes|
+     - |no|
+     - |yes|
+     - |yes|
+     - |yes|
+     - |yes|
+     - |yes|
+
+.. in progress: key ID checks have to be disabled in code
+   * - `Yubikey NEO <https://www.yubico.com/products/yubikey-hardware/yubikey-neo/>`_
+     - |no|
+     - |no|
+     - |no|
+     - |yes|
+     - |no|
+     - |yes|
+     - |yes|
+     - |no|
+
+.. [#fn-softhsm] Algorithms supported depend on support in OpenSSL on which SoftHSM relies.
+   A command similar to the following may be used to verify what algorithms are supported:
+   ``$ pkcs11-tool --modul /usr/lib64/pkcs11/libsofthsm2.so -M``.
+.. [#fn-utimaco] Requires setting the number of background workers to 1!
+
+The following table summarizes supported DNSSEC algorithm numbers and minimal
+GnuTLS library version required. Any algorithm may work with older library,
+however the supported operations may be limited (e.g. private key import).
+
+.. list-table::
+   :header-rows: 1
+   :stub-columns: 1
+
+   * -
+     - `Numbers <https://www.iana.org/assignments/dns-sec-alg-numbers/dns-sec-alg-numbers.xhtml#dns-sec-alg-numbers-1>`_
+     - GnuTLS version
+   * - ED25519
+     - 15
+     - 3.6.0 or newer
+   * - ECDSA
+     - 13, 14
+     - 3.4.8 or newer
+   * - RSA
+     - 5, 7, 8, 10
+     - 3.4.6 or newer
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