godot/thirdparty/mbedtls/library/hkdf.c

/*
 *  HKDF implementation -- RFC 5869
 *
 *  Copyright The Mbed TLS Contributors
 *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
 */
#include "common.h"

#if defined(MBEDTLS_HKDF_C)

#include <string.h>
#include "mbedtls/hkdf.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"

int mbedtls_hkdf(const mbedtls_md_info_t *md, const unsigned char *salt,
                 size_t salt_len, const unsigned char *ikm, size_t ikm_len,
                 const unsigned char *info, size_t info_len,
                 unsigned char *okm, size_t okm_len)
{ … }

int mbedtls_hkdf_extract(const mbedtls_md_info_t *md,
                         const unsigned char *salt, size_t salt_len,
                         const unsigned char *ikm, size_t ikm_len,
                         unsigned char *prk)
{ … }

int mbedtls_hkdf_expand(const mbedtls_md_info_t *md, const unsigned char *prk,
                        size_t prk_len, const unsigned char *info,
                        size_t info_len, unsigned char *okm, size_t okm_len)
{ … }

#endif /* MBEDTLS_HKDF_C */