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committed c0153b0b901 * Function generates an ecc private key in the crypto subsystem when receiving/* * ECDH helper functions - KPP wrappings * * Copyright (C) 2017 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation; * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY * CLAIM, OR ANY SPECIAL 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. * * ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, * COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS * SOFTWARE IS DISCLAIMED. */struct ecdh_completion { struct completion completion; int err;};static void ecdh_complete(struct crypto_async_request *req, int err){ struct ecdh_completion *res = req->data; if (err == -EINPROGRESS) return; res->err = err; complete(&res->completion);}static inline void swap_digits(u64 *in, u64 *out, unsigned int ndigits){ int i; for (i = 0; i < ndigits; i++) out[i] = __swab64(in[ndigits - 1 - i]);}/* compute_ecdh_secret() - function assumes that the private key was * already set. * @tfm: KPP tfm handle allocated with crypto_alloc_kpp(). * @public_key: pair's ecc public key. * secret: memory where the ecdh computed shared secret will be saved. * * Return: zero on success; error code in case of error. */int compute_ecdh_secret(struct crypto_kpp *tfm, const u8 public_key[64], u8 secret[32]){ struct kpp_request *req;