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76 lines
3.2 KiB
C++
76 lines
3.2 KiB
C++
/**************************************************************************/
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/* sha256_digest.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#pragma once
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#import <CommonCrypto/CommonDigest.h>
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#import <simd/simd.h>
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#import <zlib.h>
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#include "core/templates/local_vector.h"
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struct SHA256Digest {
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unsigned char data[CC_SHA256_DIGEST_LENGTH];
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static constexpr size_t serialized_size() { return CC_SHA256_DIGEST_LENGTH; }
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uint32_t hash() const {
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uint32_t c = crc32(0, data, CC_SHA256_DIGEST_LENGTH);
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return c;
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}
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SHA256Digest() {
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bzero(data, CC_SHA256_DIGEST_LENGTH);
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}
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SHA256Digest(const char *p_hash) {
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memcpy(data, p_hash, CC_SHA256_DIGEST_LENGTH);
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}
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SHA256Digest(const char *p_data, size_t p_length) {
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CC_SHA256(p_data, (CC_LONG)p_length, data);
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}
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_FORCE_INLINE_ uint32_t short_sha() const {
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return __builtin_bswap32(*(uint32_t *)&data[0]);
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}
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LocalVector<uint8_t> serialize() const {
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LocalVector<uint8_t> result;
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result.resize(CC_SHA256_DIGEST_LENGTH);
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memcpy(result.ptr(), data, CC_SHA256_DIGEST_LENGTH);
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return result;
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}
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static SHA256Digest deserialize(LocalVector<uint8_t> p_ser) {
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return SHA256Digest((const char *)p_ser.ptr());
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}
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};
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