1/* $OpenBSD: chacha.h,v 1.4 2016/08/27 04:04:56 guenther Exp $ */ 2 3/* 4chacha-merged.c version 20080118 5D. J. Bernstein 6Public domain. 7 8 $FreeBSD$ 9*/ 10 11#ifndef CHACHA_H 12#define CHACHA_H 13 14#include <sys/types.h> 15#include <crypto/chacha20/_chacha.h> 16 17#define CHACHA_MINKEYLEN 16 18#define CHACHA_NONCELEN 8 19#define CHACHA_CTRLEN 8 20#define CHACHA_STATELEN (CHACHA_NONCELEN+CHACHA_CTRLEN) 21#define CHACHA_BLOCKLEN 64 22 23#ifdef CHACHA_EMBED 24#define LOCAL static 25#else 26#define LOCAL 27#endif 28 29#ifdef CHACHA_NONCE0_CTR128 30#define CHACHA_UNUSED __unused 31#else 32#define CHACHA_UNUSED 33#endif 34 35LOCAL void chacha_keysetup(struct chacha_ctx *x, const u_char *k, u_int kbits); 36LOCAL void chacha_ivsetup(struct chacha_ctx *x, const u_char *iv CHACHA_UNUSED, 37 const u_char *ctr); 38LOCAL void chacha_encrypt_bytes(struct chacha_ctx *x, const u_char *m, 39 u_char *c, u_int bytes); 40 41#undef CHACHA_UNUSED 42 43#endif /* CHACHA_H */ 44 45