mirror of
https://github.com/BLAKE3-team/BLAKE3
synced 2024-05-04 06:46:16 +02:00
b5f1e925f7
This is simpler than sometimes incrementing by CHUNK_LEN and other times incrementing by BLOCK_LEN.
133 lines
5.4 KiB
C
133 lines
5.4 KiB
C
#pragma once
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#include <assert.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <string.h>
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#if __POPCNT__
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#include <nmmintrin.h>
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#endif
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#include "blake3.h"
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// internal flags
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#define CHUNK_START 1
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#define CHUNK_END 2
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#define PARENT 4
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#define ROOT 8
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#define KEYED_HASH 16
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#define DERIVE_KEY 32
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// This C implementation tries to support recent versions of GCC, Clang, and
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// MSVC.
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#if defined(_MSC_VER)
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#define INLINE __forceinline static
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#else
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#define INLINE __attribute__((always_inline)) static inline
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#endif
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static const uint32_t IV[8] = {0x6A09E667UL, 0xBB67AE85UL, 0x3C6EF372UL,
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0xA54FF53AUL, 0x510E527FUL, 0x9B05688CUL,
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0x1F83D9ABUL, 0x5BE0CD19UL};
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static const uint8_t MSG_SCHEDULE[7][16] = {
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{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
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{14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3},
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{11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4},
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{7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8},
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{9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13},
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{2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9},
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{12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11},
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};
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// Count the number of 1 bits.
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INLINE uint8_t popcnt(uint64_t x) {
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#if __POPCNT__
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return (uint8_t)_mm_popcnt_u64(x);
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#else
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uint8_t count = 0;
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while (x > 0) {
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count += ((uint8_t)x) & 1;
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x >>= 1;
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}
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return count;
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#endif
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}
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INLINE uint32_t counter_low(uint64_t counter) { return (uint32_t)counter; }
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INLINE uint32_t counter_high(uint64_t counter) {
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return (uint32_t)(counter >> 32);
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}
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INLINE uint32_t load32(const void *src) {
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const uint8_t *p = (const uint8_t *)src;
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return ((uint32_t)(p[0]) << 0) | ((uint32_t)(p[1]) << 8) |
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((uint32_t)(p[2]) << 16) | ((uint32_t)(p[3]) << 24);
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}
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INLINE void load_key_words(const uint8_t key[BLAKE3_KEY_LEN],
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uint32_t key_words[8]) {
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key_words[0] = load32(&key[0 * 4]);
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key_words[1] = load32(&key[1 * 4]);
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key_words[2] = load32(&key[2 * 4]);
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key_words[3] = load32(&key[3 * 4]);
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key_words[4] = load32(&key[4 * 4]);
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key_words[5] = load32(&key[5 * 4]);
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key_words[6] = load32(&key[6 * 4]);
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key_words[7] = load32(&key[7 * 4]);
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}
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// Declarations for implementation-specific functions.
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void blake3_compress_in_place_portable(uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN],
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uint8_t block_len, uint64_t counter,
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uint8_t flags);
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void blake3_compress_in_place_sse41(uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN],
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uint8_t block_len, uint64_t counter,
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uint8_t flags);
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void blake3_compress_in_place_avx512(uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN],
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uint8_t block_len, uint64_t counter,
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uint8_t flags);
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void blake3_compress_xof_portable(const uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN],
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uint8_t block_len, uint64_t counter,
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uint8_t flags, uint8_t out[64]);
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void blake3_compress_xof_sse41(const uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN],
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uint8_t block_len, uint64_t counter,
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uint8_t flags, uint8_t out[64]);
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void blake3_compress_xof_avx512(const uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN],
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uint8_t block_len, uint64_t counter,
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uint8_t flags, uint8_t out[64]);
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void blake3_hash_many_portable(const uint8_t *const *inputs, size_t num_inputs,
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size_t blocks, const uint32_t key[8],
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uint64_t counter, bool increment_counter,
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uint8_t flags, uint8_t flags_start,
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uint8_t flags_end, uint8_t *out);
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void blake3_hash_many_sse41(const uint8_t *const *inputs, size_t num_inputs,
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size_t blocks, const uint32_t key[8],
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uint64_t counter, bool increment_counter,
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uint8_t flags, uint8_t flags_start,
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uint8_t flags_end, uint8_t *out);
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void blake3_hash_many_avx2(const uint8_t *const *inputs, size_t num_inputs,
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size_t blocks, const uint32_t key[8],
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uint64_t counter, bool increment_counter,
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uint8_t flags, uint8_t flags_start,
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uint8_t flags_end, uint8_t *out);
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void blake3_hash_many_avx512(const uint8_t *const *inputs, size_t num_inputs,
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size_t blocks, const uint32_t key[8],
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uint64_t counter, bool increment_counter,
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uint8_t flags, uint8_t flags_start,
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uint8_t flags_end, uint8_t *out);
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void blake3_hash_many_neon(const uint8_t *const *inputs, size_t num_inputs,
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size_t blocks, const uint32_t key[8],
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uint64_t counter, bool increment_counter,
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uint8_t flags, uint8_t flags_start,
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uint8_t flags_end, uint8_t *out);
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