2f512aaa6c
https://www.rfc-editor.org/rfc/rfc9106.html * add css::xml::crypto::KDFID constant group * add "KeyDerivationFunction" to setEncryptionAlgorithms sequence * Argon2 is used by default for wholesome ODF encryption, but $LO_ARGON2_DISABLE can be set to use PBKDF2 * extend various structs in package * use 3 new ODF attributes "loext:argon2-iterations" "loext:argon2-memory" "loext:argon2-lanes" to store the arguments * use this URL for now: "urn:org:documentfoundation:names:experimental🏢manifest:argon2id" * use default arguments according to second recommendation from "7.4. Recommendations" of RFC9106; 64 MiB RAM should hopefully not be too much even for 32 bit builds Change-Id: I683118cc5e0706bd6544db6fb909096768ac9920 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/161009 Tested-by: Jenkins Reviewed-by: Michael Stahl <michael.stahl@allotropia.de>
53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_PACKAGE_INC_ENCRYPTEDDATAHEADER_HXX
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#define INCLUDED_PACKAGE_INC_ENCRYPTEDDATAHEADER_HXX
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#include <sal/types.h>
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/* The structure of this header is as follows:
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Header signature 4 bytes
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Version number 2 bytes
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PBKDF2 Iteration count 4 bytes
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Argon2 t_cost 4 bytes
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Argon2 m_cost 4 bytes
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Argon2 lanes 4 bytes
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Size 4 bytes
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EncAlgorithm 4 bytes
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DigestAlgorithm 4 bytes
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DerivedKeySize 4 bytes
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StartKeyAlgorithm 4 bytes
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Salt length 2 bytes
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IV length 2 bytes
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Digest length 2 bytes
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MediaType length 2 bytes
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Salt content X bytes
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IV content X bytes
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digest content X bytes
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MediaType X bytes
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*/
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const sal_uInt32 n_ConstHeader = 0x05024d4dL; // "MM\002\005"
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const sal_Int32 n_ConstHeaderSize
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= 50; // + salt length + iv length + digest length + mediatype length
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const sal_Int16 n_ConstCurrentVersion = 2;
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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