46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/* Copyright (c) 2018, Google Inc.
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*
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* Permission to use, copy, modify, and/or 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 ANY
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* 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 ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#ifndef OPENSSL_HEADER_CHACHA_INTERNAL
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#define OPENSSL_HEADER_CHACHA_INTERNAL
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#include <openssl/base.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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// CRYPTO_hchacha20 computes the HChaCha20 function, which should only be used
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// as part of XChaCha20.
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void CRYPTO_hchacha20(uint8_t out[32], const uint8_t key[32],
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const uint8_t nonce[16]);
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#if !defined(OPENSSL_NO_ASM) && \
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(defined(OPENSSL_X86) || defined(OPENSSL_X86_64) || \
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defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64))
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#define CHACHA20_ASM
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// ChaCha20_ctr32 is defined in asm/chacha-*.pl.
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void ChaCha20_ctr32(uint8_t *out, const uint8_t *in, size_t in_len,
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const uint32_t key[8], const uint32_t counter[4]);
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#endif
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#if defined(__cplusplus)
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} // extern C
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#endif
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#endif // OPENSSL_HEADER_CHACHA_INTERNAL
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