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- /*
- * Copyright (c) 2020, the SerenityOS developers.
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
- #include <AK/Span.h>
- #include <AK/Types.h>
- #include <LibCrypto/Checksum/CRC32.h>
- namespace Crypto::Checksum {
- void CRC32::update(ReadonlyBytes data)
- {
- for (size_t i = 0; i < data.size(); i++) {
- m_state = table[(m_state ^ data.at(i)) & 0xFF] ^ (m_state >> 8);
- }
- };
- u32 CRC32::digest()
- {
- return ~m_state;
- }
- }
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