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23692ccc90
These contain pointer members pointers and copying them can lead to a double free scenario.
36 lines
818 B
C++
36 lines
818 B
C++
/*
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* Copyright (c) 2023, stelar7 <dudedbz@gmail.com>
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* Copyright (c) 2024, Ben Wiederhake <BenWiederhake.GitHub@gmx.de>
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* Copyright (c) 2025, Altomani Gianluca <altomanigianluca@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibCrypto/Hash/HashManager.h>
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namespace Crypto::Hash {
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class HKDF {
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AK_MAKE_NONCOPYABLE(HKDF);
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public:
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HKDF(HashKind hash_kind);
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~HKDF()
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{
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EVP_KDF_free(m_kdf);
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}
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// Note: The output is different for a salt of length zero and an absent salt,
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// so Optional<ReadonlyBytes> really is the correct type.
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ErrorOr<ByteBuffer> derive_key(Optional<ReadonlyBytes> maybe_salt, ReadonlyBytes input_keying_material, ReadonlyBytes info, u32 key_length_bytes);
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private:
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EVP_KDF* m_kdf;
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HashKind m_hash_kind;
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};
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}
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