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https://github.com/cryb-to/cryb-to.git
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66 lines
2.4 KiB
C
66 lines
2.4 KiB
C
/*-
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* Copyright (c) 2017 Dag-Erling Smørgrav
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef CRYB_CHACHA_H_INCLUDED
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#define CRYB_CHACHA_H_INCLUDED
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#ifndef CRYB_TO
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#include <cryb/to.h>
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#endif
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#include <cryb/cipher.h>
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CRYB_BEGIN
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#define chacha_cipher cryb_chacha_cipher
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#define chacha_ctx cryb_chacha_ctx
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#define chacha_init cryb_chacha_init
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#define chacha_reset cryb_chacha_reset
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#define chacha_keystream cryb_chacha_keystream
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#define chacha_encrypt cryb_chacha_encrypt
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#define chacha_decrypt cryb_chacha_decrypt
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#define chacha_finish cryb_chacha_finish
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extern cipher_algorithm chacha_cipher;
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typedef struct {
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uint32_t state[16];
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unsigned int rounds;
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} chacha_ctx;
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void chacha_init(chacha_ctx *, cipher_mode, const uint8_t *, size_t);
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void chacha_reset(chacha_ctx *, const uint8_t *, unsigned int);
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size_t chacha_keystream(chacha_ctx *, uint8_t *, size_t);
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size_t chacha_encrypt(chacha_ctx *, const void *, uint8_t *, size_t);
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size_t chacha_decrypt(chacha_ctx *, const uint8_t *, void *, size_t);
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void chacha_finish(chacha_ctx *);
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CRYB_END
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#endif
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