/* Copyright (c) 2023, Google Inc. * * Permission to use, copy, modify, and/or 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 OPENSSL_HEADER_CRYPTO_KECCAK_INTERNAL_H #define OPENSSL_HEADER_CRYPTO_KECCAK_INTERNAL_H #include <openssl/base.h> #if defined(__cplusplus) extern "C" { #endif enum boringssl_keccak_config_t { … }; enum boringssl_keccak_phase_t { … }; struct BORINGSSL_keccak_st { … }; // BORINGSSL_keccak hashes |in_len| bytes from |in| and writes |out_len| bytes // of output to |out|. If the |config| specifies a fixed-output function, like // SHA3-256, then |out_len| must be the correct length for that function. OPENSSL_EXPORT void BORINGSSL_keccak(uint8_t *out, size_t out_len, const uint8_t *in, size_t in_len, enum boringssl_keccak_config_t config); // BORINGSSL_keccak_init prepares |ctx| for absorbing. The |config| must specify // a SHAKE variant, otherwise callers should use |BORINGSSL_keccak|. OPENSSL_EXPORT void BORINGSSL_keccak_init( struct BORINGSSL_keccak_st *ctx, enum boringssl_keccak_config_t config); // BORINGSSL_keccak_absorb absorbs |in_len| bytes from |in|. OPENSSL_EXPORT void BORINGSSL_keccak_absorb(struct BORINGSSL_keccak_st *ctx, const uint8_t *in, size_t in_len); // BORINGSSL_keccak_squeeze writes |out_len| bytes to |out| from |ctx|. OPENSSL_EXPORT void BORINGSSL_keccak_squeeze(struct BORINGSSL_keccak_st *ctx, uint8_t *out, size_t out_len); #if defined(__cplusplus) } #endif #endif // OPENSSL_HEADER_CRYPTO_KECCAK_INTERNAL_H