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/* $OpenBSD: chacha.h,v 1.4 2016/08/27 04:04:56 guenther Exp $ */
/*
chacha-merged.c version 20080118
D. J. Bernstein
Public domain.
$FreeBSD$
*/
#ifndef CHACHA_H
#define CHACHA_H
#include <sys/types.h>
#include <crypto/chacha20/_chacha.h>
#define CHACHA_MINKEYLEN 16
#define CHACHA_NONCELEN 8
#define CHACHA_CTRLEN 8
#define CHACHA_STATELEN (CHACHA_NONCELEN+CHACHA_CTRLEN)
#define CHACHA_BLOCKLEN 64
#ifdef CHACHA_EMBED
#define LOCAL static
#else
#define LOCAL
#endif
LOCAL void chacha_keysetup(struct chacha_ctx *x, const u_char *k, u_int kbits);
LOCAL void chacha_ivsetup(struct chacha_ctx *x, const u_char *iv, const u_char *ctr);
LOCAL void chacha_encrypt_bytes(struct chacha_ctx *x, const u_char *m,
u_char *c, u_int bytes);
#endif /* CHACHA_H */
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