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15 lines
459 B
C
15 lines
459 B
C
#ifndef HMAC_SHA256_H
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#define HMAC_SHA256_H
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#include <stddef.h>
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#define HMAC_SHA256_RESULT_SIZE 32
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/* Compute Hashed Message Authentication Code with SHA-256, over BUFFER
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data of BUFLEN bytes using the KEY of KEYLEN bytes, writing the
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output to pre-allocated 32 byte minimum RESBUF buffer. Return 0 on
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success. */
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int hmac_sha256 (const void *key, size_t keylen, const void *in, size_t inlen, void *restrict resbuf);
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#endif /* HMAC_SHA256_H */
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