chromium/third_party/boringssl/src/crypto/evp/p_x25519.c

/* Copyright (c) 2019, 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. */

#include <openssl/evp.h>

#include <openssl/curve25519.h>
#include <openssl/err.h>
#include <openssl/mem.h>

#include "internal.h"


// X25519 has no parameters to copy.
static int pkey_x25519_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src) { … }

static int pkey_x25519_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) { … }

static int pkey_x25519_derive(EVP_PKEY_CTX *ctx, uint8_t *out,
                              size_t *out_len) { … }

static int pkey_x25519_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) { … }

const EVP_PKEY_METHOD x25519_pkey_meth = …;