mirror of https://gitee.com/openkylin/openssh.git
37 lines
1000 B
C
37 lines
1000 B
C
|
/* $OpenBSD: chacha.h,v 1.4 2016/08/27 04:04:56 guenther Exp $ */
|
||
|
|
|
||
|
|
/*
|
||
|
|
chacha-merged.c version 20080118
|
||
|
|
D. J. Bernstein
|
||
|
|
Public domain.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef CHACHA_H
|
||
|
|
#define CHACHA_H
|
||
|
|
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
struct chacha_ctx {
|
||
|
|
u_int input[16];
|
||
|
|
};
|
||
|
|
|
||
|
|
#define CHACHA_MINKEYLEN 16
|
||
|
|
#define CHACHA_NONCELEN 8
|
||
|
|
#define CHACHA_CTRLEN 8
|
||
|
|
#define CHACHA_STATELEN (CHACHA_NONCELEN+CHACHA_CTRLEN)
|
||
|
|
#define CHACHA_BLOCKLEN 64
|
||
|
|
|
||
|
|
void chacha_keysetup(struct chacha_ctx *x, const u_char *k, u_int kbits)
|
||
|
|
__attribute__((__bounded__(__minbytes__, 2, CHACHA_MINKEYLEN)));
|
||
|
|
void chacha_ivsetup(struct chacha_ctx *x, const u_char *iv, const u_char *ctr)
|
||
|
|
__attribute__((__bounded__(__minbytes__, 2, CHACHA_NONCELEN)))
|
||
|
|
__attribute__((__bounded__(__minbytes__, 3, CHACHA_CTRLEN)));
|
||
|
|
void chacha_encrypt_bytes(struct chacha_ctx *x, const u_char *m,
|
||
|
|
u_char *c, u_int bytes)
|
||
|
|
__attribute__((__bounded__(__buffer__, 2, 4)))
|
||
|
|
__attribute__((__bounded__(__buffer__, 3, 4)));
|
||
|
|
|
||
|
|
#endif /* CHACHA_H */
|
||
|
|
|