1 /* Copyright (c) 2018, Google Inc.
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 
35 #if defined(__cplusplus)
36 }
37 #endif
38 
39 #endif  // OPENSSL_HEADER_CRYPTO_FIPSMODULE_TLS_INTERNAL_H
40