1 /* Copyright 2018 The BoringSSL Authors 2 * 3 * Permission to use, copy, modify, and/or distribute this software for any 4 * purpose with or without fee is hereby granted, provided that the above 5 * copyright notice and this permission notice appear in all copies. 6 * 7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ 14 15 #ifndef OPENSSL_HEADER_CRYPTO_FIPSMODULE_TLS_INTERNAL_H 16 #define OPENSSL_HEADER_CRYPTO_FIPSMODULE_TLS_INTERNAL_H 17 18 #include <openssl/base.h> 19 20 #if defined(__cplusplus) 21 extern "C" { 22 #endif 23 24 25 // tls1_prf calculates |out_len| bytes of the TLS PDF, using |digest|, and 26 // writes them to |out|. It returns one on success and zero on error. 27 OPENSSL_EXPORT int CRYPTO_tls1_prf(const EVP_MD *digest, 28 uint8_t *out, size_t out_len, 29 const uint8_t *secret, size_t secret_len, 30 const char *label, size_t label_len, 31 const uint8_t *seed1, size_t seed1_len, 32 const uint8_t *seed2, size_t seed2_len); 33 34 // CRYPTO_tls13_hkdf_expand_label computes the TLS 1.3 KDF function of the same 35 // name. See https://www.rfc-editor.org/rfc/rfc8446#section-7.1. 36 OPENSSL_EXPORT int CRYPTO_tls13_hkdf_expand_label( 37 uint8_t *out, size_t out_len, const EVP_MD *digest, // 38 const uint8_t *secret, size_t secret_len, // 39 const uint8_t *label, size_t label_len, // 40 const uint8_t *hash, size_t hash_len); 41 42 43 #if defined(__cplusplus) 44 } 45 #endif 46 47 #endif // OPENSSL_HEADER_CRYPTO_FIPSMODULE_TLS_INTERNAL_H 48