c43aead8d1
1. Switches to 32-bit based calculation throughout. This is faster and less error-prone as we only byte-swap once when reading and writing. 2. Removes global state from Diablo-SHA implementation.
25 lines
638 B
C++
25 lines
638 B
C++
/**
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* @file sha.cpp
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*
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* Interface of functionality for calculating X-SHA-1 (a flawed implementation of SHA-1).
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*/
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#pragma once
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#include <cstdint>
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#include "utils/stdcompat/cstddef.hpp"
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namespace devilution {
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constexpr size_t BlockSize = 16;
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constexpr size_t SHA1HashSize = 5;
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struct SHA1Context {
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uint32_t state[SHA1HashSize] = { 0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0 };
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uint32_t buffer[BlockSize];
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};
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void SHA1Result(SHA1Context &context, uint32_t messageDigest[SHA1HashSize]);
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void SHA1Calculate(SHA1Context &context, const uint32_t data[BlockSize]);
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} // namespace devilution
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