^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * ECDH helper functions - KPP wrappings
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (C) 2017 Intel Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * This program is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * it under the terms of the GNU General Public License version 2 as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * published by the Free Software Foundation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * SOFTWARE IS DISCLAIMED.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include "ecdh_helper.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/scatterlist.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <crypto/ecdh.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct ecdh_completion {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct completion completion;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) static void ecdh_complete(struct crypto_async_request *req, int err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct ecdh_completion *res = req->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) if (err == -EINPROGRESS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) res->err = err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) complete(&res->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) static inline void swap_digits(u64 *in, u64 *out, unsigned int ndigits)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) for (i = 0; i < ndigits; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) out[i] = __swab64(in[ndigits - 1 - i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /* compute_ecdh_secret() - function assumes that the private key was
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * already set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) * @tfm: KPP tfm handle allocated with crypto_alloc_kpp().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) * @public_key: pair's ecc public key.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * secret: memory where the ecdh computed shared secret will be saved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * Return: zero on success; error code in case of error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) int compute_ecdh_secret(struct crypto_kpp *tfm, const u8 public_key[64],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) u8 secret[32])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct kpp_request *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) u8 *tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct ecdh_completion result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) struct scatterlist src, dst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) tmp = kmalloc(64, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) if (!tmp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) req = kpp_request_alloc(tfm, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) if (!req) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) goto free_tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) init_completion(&result.completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) swap_digits((u64 *)public_key, (u64 *)tmp, 4); /* x */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) swap_digits((u64 *)&public_key[32], (u64 *)&tmp[32], 4); /* y */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) sg_init_one(&src, tmp, 64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) sg_init_one(&dst, secret, 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) kpp_request_set_input(req, &src, 64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) kpp_request_set_output(req, &dst, 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) kpp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) ecdh_complete, &result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) err = crypto_kpp_compute_shared_secret(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) if (err == -EINPROGRESS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) wait_for_completion(&result.completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) err = result.err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) pr_err("alg: ecdh: compute shared secret failed. err %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) goto free_all;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) swap_digits((u64 *)secret, (u64 *)tmp, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) memcpy(secret, tmp, 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) free_all:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) kpp_request_free(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) free_tmp:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) kfree_sensitive(tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) /* set_ecdh_privkey() - set or generate ecc private key.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) * Function generates an ecc private key in the crypto subsystem when receiving
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) * a NULL private key or sets the received key when not NULL.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) * @tfm: KPP tfm handle allocated with crypto_alloc_kpp().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) * @private_key: user's ecc private key. When not NULL, the key is expected
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) * in little endian format.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) * Return: zero on success; error code in case of error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) int set_ecdh_privkey(struct crypto_kpp *tfm, const u8 private_key[32])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) u8 *buf, *tmp = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) unsigned int buf_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) struct ecdh p = {0};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) p.curve_id = ECC_CURVE_NIST_P256;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) if (private_key) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) tmp = kmalloc(32, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) if (!tmp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) swap_digits((u64 *)private_key, (u64 *)tmp, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) p.key = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) p.key_size = 32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) buf_len = crypto_ecdh_key_len(&p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) buf = kmalloc(buf_len, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) if (!buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) goto free_tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) err = crypto_ecdh_encode_key(buf, buf_len, &p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) goto free_all;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) err = crypto_kpp_set_secret(tfm, buf, buf_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) /* fall through */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) free_all:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) kfree_sensitive(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) free_tmp:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) kfree_sensitive(tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) /* generate_ecdh_public_key() - function assumes that the private key was
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) * already set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) * @tfm: KPP tfm handle allocated with crypto_alloc_kpp().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) * @public_key: memory where the computed ecc public key will be saved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) * Return: zero on success; error code in case of error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) int generate_ecdh_public_key(struct crypto_kpp *tfm, u8 public_key[64])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) struct kpp_request *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) u8 *tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) struct ecdh_completion result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) struct scatterlist dst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) tmp = kmalloc(64, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) if (!tmp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) req = kpp_request_alloc(tfm, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) if (!req) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) goto free_tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) init_completion(&result.completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) sg_init_one(&dst, tmp, 64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) kpp_request_set_input(req, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) kpp_request_set_output(req, &dst, 64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) kpp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) ecdh_complete, &result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) err = crypto_kpp_generate_public_key(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) if (err == -EINPROGRESS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) wait_for_completion(&result.completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) err = result.err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) goto free_all;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) /* The public key is handed back in little endian as expected by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) * the Security Manager Protocol.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) swap_digits((u64 *)tmp, (u64 *)public_key, 4); /* x */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) swap_digits((u64 *)&tmp[32], (u64 *)&public_key[32], 4); /* y */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) free_all:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) kpp_request_free(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) free_tmp:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) kfree(tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) /* generate_ecdh_keys() - generate ecc key pair.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) * @tfm: KPP tfm handle allocated with crypto_alloc_kpp().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) * @public_key: memory where the computed ecc public key will be saved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) * Return: zero on success; error code in case of error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) int generate_ecdh_keys(struct crypto_kpp *tfm, u8 public_key[64])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) err = set_ecdh_privkey(tfm, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) return generate_ecdh_public_key(tfm, public_key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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