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diff --git a/offapi/com/sun/star/xml/crypto/KDFID.idl b/offapi/com/sun/star/xml/crypto/KDFID.idl
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+module com { module sun { module star { module xml { module crypto {
+
+/** Constants to identify Key Derivation Function
+    @since LibreOffice 24.2
+ */
+constants KDFID
+{
+    /** PBKDF2
+
+        Derive key material from password. When used with ODF, the
+        "StartKeyGenerationAlgorithm" is applied to the password and the
+        result is passed to KDF.
+     */
+    const long PBKDF2 = 1;
+
+    /** OpenPGP/GnuPG
+
+        Of course this is public key encryption, but it does produce
+        key material for symmetric encryption. When used with ODF, the
+        "StartKeyGenerationAlgorithm" digest is not used, as the input
+        is not a password.
+     */
+    const long PGP_RSA_OAEP_MGF1P = 2;
+
+    /** Argon2id
+
+        Derive key material from password. When used with ODF, the
+        "StartKeyGenerationAlgorithm" is applied to the password and the
+        result is passed to KDF.
+
+        @see https://www.rfc-editor.org/rfc/rfc9106.html
+     */
+    const long Argon2id = 3;
+};
+
+}; }; }; }; };
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */