56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
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#ifndef CRYPTOHASH_BLAKE2S_H
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#define CRYPTOHASH_BLAKE2S_H
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#include <stdint.h>
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#if defined(_MSC_VER)
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#define PACKED(x) __pragma(pack(push, 1)) x __pragma(pack(pop))
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#else
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#define PACKED(x) x __attribute((packed))
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#endif
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enum blake2s_constant
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{
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BLAKE2S_BLOCKBYTES = 64,
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BLAKE2S_OUTBYTES = 32,
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BLAKE2S_KEYBYTES = 32,
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BLAKE2S_SALTBYTES = 8,
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BLAKE2S_PERSONALBYTES = 8
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};
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struct blake2s_ctx
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{
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uint32_t h[8];
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uint32_t t[2];
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uint32_t f[2];
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uint8_t buf[BLAKE2S_BLOCKBYTES];
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size_t buflen;
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size_t outlen;
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uint8_t last_node;
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};
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PACKED(struct blake2s_param
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{
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uint8_t digest_length; /* 1 */
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uint8_t key_length; /* 2 */
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uint8_t fanout; /* 3 */
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uint8_t depth; /* 4 */
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uint32_t leaf_length; /* 8 */
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uint32_t node_offset; /* 12 */
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uint16_t xof_length; /* 14 */
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uint8_t node_depth; /* 15 */
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uint8_t inner_length; /* 16 */
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uint8_t salt[BLAKE2S_SALTBYTES]; /* 24 */
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uint8_t personal[BLAKE2S_PERSONALBYTES]; /* 32 */
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});
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#define BLAKE2S_DIGEST_SIZE BLAKE2S_BLOCKBYTES
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#define BLAKE2S_CTX_SIZE (sizeof(struct blake2s_ctx))
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void digestif_blake2s_init(struct blake2s_ctx *ctx);
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void digestif_blake2s_init_with_outlen_and_key(struct blake2s_ctx *ctx, size_t outlen, const void *key, size_t keylen);
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void digestif_blake2s_update(struct blake2s_ctx *ctx, uint8_t *data, uint32_t len);
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void digestif_blake2s_finalize(struct blake2s_ctx *ctx, uint8_t *out);
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#endif
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