forked from Mirrors/btrfs-progs
52 lines
952 B
C
52 lines
952 B
C
#include "crypto/hash.h"
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#include "crypto/crc32c.h"
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#include "crypto/xxhash.h"
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#include "crypto/sha.h"
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#include "crypto/blake2.h"
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int hash_crc32c(const u8* buf, size_t length, u8 *out)
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{
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u32 crc = ~0;
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crc = crc32c(~0, buf, length);
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put_unaligned_le32(~crc, out);
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return 0;
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}
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int hash_xxhash(const u8 *buf, size_t length, u8 *out)
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{
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XXH64_hash_t hash;
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hash = XXH64(buf, length, 0);
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/*
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* NOTE: we're not taking the canonical form here but the plain hash to
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* be compatible with the kernel implementation!
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*/
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memcpy(out, &hash, 8);
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return 0;
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}
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int hash_sha256(const u8 *buf, size_t len, u8 *out)
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{
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SHA256Context context;
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SHA256Reset(&context);
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SHA256Input(&context, buf, len);
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SHA256Result(&context, out);
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return 0;
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}
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int hash_blake2b(const u8 *buf, size_t len, u8 *out)
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{
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blake2b_state S;
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blake2b_init(&S, CRYPTO_HASH_SIZE_MAX);
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blake2b_update(&S, buf, len);
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blake2b_final(&S, out, CRYPTO_HASH_SIZE_MAX);
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return 0;
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}
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