38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/****************************************************************************
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* include/crypto/poly1305.h
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* $OpenBSD: poly1305.h,v 1.2 2020/07/22 13:54:30 tobhe Exp $
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*
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* Public Domain poly1305 from Andrew Moon
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*
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* poly1305 implementation using 32 bit * 32 bit = 64 bit multiplication
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* and 64 bit addition from https://github.com/floodyberry/poly1305-donna
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****************************************************************************/
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#ifndef __INCLUDE_CRYPTO_POLY1305_H
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#define __INCLUDE_CRYPTO_POLY1305_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <sys/types.h>
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#define poly1305_block_size 16
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typedef struct poly1305_state
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{
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unsigned long r[5];
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unsigned long h[5];
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unsigned long pad[4];
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size_t leftover;
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unsigned char buffer[poly1305_block_size];
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unsigned char final;
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} poly1305_state;
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void poly1305_begin(FAR poly1305_state *, FAR const unsigned char *);
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void poly1305_update(FAR poly1305_state *,
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FAR const unsigned char *, size_t);
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void poly1305_finish(FAR poly1305_state *, FAR unsigned char *);
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#endif /* __INCLUDE_CRYPTO_POLY1305_H */
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