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/* $OpenBSD: cipher-chachapoly.h,v 1.1 2013/11/21 00:45:44 djm Exp $ */ |
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|
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/* |
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* Copyright (c) Damien Miller 2013 <djm@mindrot.org> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#ifndef CHACHA_POLY_AEAD_H |
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#define CHACHA_POLY_AEAD_H |
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|
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#include <sys/types.h> |
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#include "chacha.h" |
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#include "poly1305.h" |
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|
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#define CHACHA_KEYLEN 32 /* Only 256 bit keys used here */ |
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|
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struct chachapoly_ctx { |
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struct chacha_ctx main_ctx, header_ctx; |
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}; |
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|
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void chachapoly_init(struct chachapoly_ctx *cpctx, |
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const u_char *key, u_int keylen) |
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__attribute__((__bounded__(__buffer__, 2, 3))); |
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int chachapoly_crypt(struct chachapoly_ctx *cpctx, u_int seqnr, |
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u_char *dest, const u_char *src, u_int len, u_int aadlen, u_int authlen, |
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int do_encrypt); |
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int chachapoly_get_length(struct chachapoly_ctx *cpctx, |
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u_int *plenp, u_int seqnr, const u_char *cp, u_int len) |
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__attribute__((__bounded__(__buffer__, 4, 5))); |
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|
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#endif /* CHACHA_POLY_AEAD_H */ |
