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File: [local] / src / usr.bin / ssh / cipher-chachapoly.h (download)
Revision 1.4, Tue Jun 24 01:13:21 2014 UTC (9 years, 11 months ago) by djm
New key API: refactor key-related functions to be more library-like, existing API is offered as a set of wrappers. with and ok markus@ Thanks also to Ben Hawkes, David Tomaschik, Ivan Fratric, Matthew Dempsky and Ron Bowes for a detailed review a few months ago. |
/* $OpenBSD: cipher-chachapoly.h,v 1.4 2014/06/24 01:13:21 djm Exp $ */ /* * Copyright (c) Damien Miller 2013 <djm@mindrot.org> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef CHACHA_POLY_AEAD_H #define CHACHA_POLY_AEAD_H #include <sys/types.h> #include "chacha.h" #include "poly1305.h" #define CHACHA_KEYLEN 32 /* Only 256 bit keys used here */ struct chachapoly_ctx { struct chacha_ctx main_ctx, header_ctx; }; int chachapoly_init(struct chachapoly_ctx *cpctx, const u_char *key, u_int keylen) __attribute__((__bounded__(__buffer__, 2, 3))); int chachapoly_crypt(struct chachapoly_ctx *cpctx, u_int seqnr, u_char *dest, const u_char *src, u_int len, u_int aadlen, u_int authlen, int do_encrypt); int chachapoly_get_length(struct chachapoly_ctx *cpctx, u_int *plenp, u_int seqnr, const u_char *cp, u_int len) __attribute__((__bounded__(__buffer__, 4, 5))); #endif /* CHACHA_POLY_AEAD_H */