56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
#ifndef CRYPTOHASH_BLAKE2B_H
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#define CRYPTOHASH_BLAKE2B_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 blake2b_constant
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{
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BLAKE2B_BLOCKBYTES = 128,
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BLAKE2B_OUTBYTES = 64,
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BLAKE2B_KEYBYTES = 64,
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BLAKE2B_SALTBYTES = 16,
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BLAKE2B_PERSONALBYTES = 16
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};
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struct blake2b_ctx
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{
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uint64_t h[8];
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uint64_t t[2];
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uint64_t f[2];
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uint8_t buf[BLAKE2B_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 blake2b_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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uint32_t xof_length; /* 16 */
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uint8_t node_depth; /* 17 */
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uint8_t inner_length; /* 18 */
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uint8_t reserved[14]; /* 32 */
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uint8_t salt[BLAKE2B_SALTBYTES]; /* 48 */
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uint8_t personal[BLAKE2B_PERSONALBYTES]; /* 64 */
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});
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#define BLAKE2B_DIGEST_SIZE BLAKE2B_BLOCKBYTES
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#define BLAKE2B_CTX_SIZE (sizeof(struct blake2b_ctx))
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void digestif_blake2b_init(struct blake2b_ctx *ctx);
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void digestif_blake2b_init_with_outlen_and_key(struct blake2b_ctx *ctx, size_t outlen, const void *key, size_t keylen);
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void digestif_blake2b_update(struct blake2b_ctx *ctx, uint8_t *data, uint32_t len);
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void digestif_blake2b_finalize(struct blake2b_ctx *ctx, uint8_t *out);
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#endif
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