Annotation of src/usr.bin/ssh/cipher-chachapoly.h, Revision 1.3
1.2 djm 1: /* $OpenBSD: cipher-chachapoly.h,v 1.1 2013/11/21 00:45:44 djm Exp $ */
1.1 djm 2:
3: /*
4: * Copyright (c) Damien Miller 2013 <djm@mindrot.org>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18: #ifndef CHACHA_POLY_AEAD_H
19: #define CHACHA_POLY_AEAD_H
20:
21: #include <sys/types.h>
22: #include "chacha.h"
23: #include "poly1305.h"
24:
25: #define CHACHA_KEYLEN 32 /* Only 256 bit keys used here */
26:
27: struct chachapoly_ctx {
28: struct chacha_ctx main_ctx, header_ctx;
29: };
30:
31: void chachapoly_init(struct chachapoly_ctx *cpctx,
32: const u_char *key, u_int keylen)
1.3 ! djm 33: __attribute__((__bounded__(__buffer__, 2, 3)));
1.1 djm 34: int chachapoly_crypt(struct chachapoly_ctx *cpctx, u_int seqnr,
35: u_char *dest, const u_char *src, u_int len, u_int aadlen, u_int authlen,
36: int do_encrypt);
37: int chachapoly_get_length(struct chachapoly_ctx *cpctx,
38: u_int *plenp, u_int seqnr, const u_char *cp, u_int len)
1.3 ! djm 39: __attribute__((__bounded__(__buffer__, 4, 5)));
1.1 djm 40:
41: #endif /* CHACHA_POLY_AEAD_H */