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Update code to v1.0.14 (10)
This commit is contained in:
Caten
709
android/extern/wolfssl/wolfcrypt/src/curve25519.c
vendored
Normal file
709
android/extern/wolfssl/wolfcrypt/src/curve25519.c
vendored
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@@ -0,0 +1,709 @@
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/* curve25519.c
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*
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* Copyright (C) 2006-2022 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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||||
*
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||||
* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
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||||
*
|
||||
* wolfSSL is distributed in the hope that it will be useful,
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||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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/* Based On Daniel J Bernstein's curve25519 Public Domain ref10 work. */
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <wolfssl/wolfcrypt/settings.h>
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#ifdef HAVE_CURVE25519
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#include <wolfssl/wolfcrypt/curve25519.h>
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#include <wolfssl/wolfcrypt/error-crypt.h>
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#ifdef NO_INLINE
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#include <wolfssl/wolfcrypt/misc.h>
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#else
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#define WOLFSSL_MISC_INCLUDED
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#include <wolfcrypt/src/misc.c>
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#endif
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#if defined(FREESCALE_LTC_ECC)
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#include <wolfssl/wolfcrypt/port/nxp/ksdk_port.h>
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#endif
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#ifdef WOLFSSL_SE050
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#include <wolfssl/wolfcrypt/port/nxp/se050_port.h>
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#endif
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#ifdef WOLF_CRYPTO_CB
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#include <wolfssl/wolfcrypt/cryptocb.h>
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#endif
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const curve25519_set_type curve25519_sets[] = {
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{
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CURVE25519_KEYSIZE,
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"CURVE25519",
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}
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};
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static const unsigned char kCurve25519BasePoint[CURVE25519_KEYSIZE] = {9};
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/* Curve25519 private key must be less than order */
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/* These functions clamp private k and check it */
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static WC_INLINE int curve25519_priv_clamp(byte* priv)
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{
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priv[0] &= 248;
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priv[CURVE25519_KEYSIZE-1] &= 127;
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priv[CURVE25519_KEYSIZE-1] |= 64;
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return 0;
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}
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static WC_INLINE int curve25519_priv_clamp_check(const byte* priv)
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{
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/* check that private part of key has been clamped */
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int ret = 0;
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if ((priv[0] & ~248) ||
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(priv[CURVE25519_KEYSIZE-1] & 128)) {
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ret = ECC_BAD_ARG_E;
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}
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return ret;
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}
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static WC_INLINE void curve25519_copy_point(byte* out, const byte* point,
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int endian)
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{
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int i;
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if (endian == EC25519_BIG_ENDIAN) {
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/* put shared secret key in Big Endian format */
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for (i = 0; i < CURVE25519_KEYSIZE; i++) {
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out[i] = point[CURVE25519_KEYSIZE - i -1];
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}
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}
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else { /* put shared secret key in Little Endian format */
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XMEMCPY(out, point, CURVE25519_KEYSIZE);
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}
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}
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/* compute the public key from an existing private key, using bare vectors.
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*
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* return value is propagated from curve25519() (0 on success), or
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* ECC_BAD_ARG_E, and the byte vectors are little endian.
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*/
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int wc_curve25519_make_pub(int public_size, byte* pub, int private_size,
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const byte* priv)
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{
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int ret;
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#ifdef FREESCALE_LTC_ECC
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const ECPoint* basepoint = nxp_ltc_curve25519_GetBasePoint();
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ECPoint wc_pub;
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#endif
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if ( (public_size != CURVE25519_KEYSIZE) ||
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(private_size != CURVE25519_KEYSIZE)) {
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return ECC_BAD_ARG_E;
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}
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if ((pub == NULL) || (priv == NULL)) {
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return ECC_BAD_ARG_E;
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}
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/* check clamping */
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ret = curve25519_priv_clamp_check(priv);
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if (ret != 0)
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return ret;
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#ifdef FREESCALE_LTC_ECC
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/* input basepoint on Weierstrass curve */
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ret = nxp_ltc_curve25519(&wc_pub, priv, basepoint, kLTC_Weierstrass);
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if (ret == 0) {
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XMEMCPY(pub, wc_pub.point, CURVE25519_KEYSIZE);
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}
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#else
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fe_init();
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SAVE_VECTOR_REGISTERS(return _svr_ret;);
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ret = curve25519(pub, priv, kCurve25519BasePoint);
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RESTORE_VECTOR_REGISTERS();
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#endif
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return ret;
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}
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/* compute the public key from an existing private key, with supplied basepoint,
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* using bare vectors.
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*
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* return value is propagated from curve25519() (0 on success),
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* and the byte vectors are little endian.
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*/
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int wc_curve25519_generic(int public_size, byte* pub,
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int private_size, const byte* priv,
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int basepoint_size, const byte* basepoint)
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{
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#ifdef FREESCALE_LTC_ECC
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/* unsupported with NXP LTC, only supports single basepoint with
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* nxp_ltc_curve25519_GetBasePoint() */
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return WC_HW_E;
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#else
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int ret;
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if ((public_size != CURVE25519_KEYSIZE) ||
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(private_size != CURVE25519_KEYSIZE) ||
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(basepoint_size != CURVE25519_KEYSIZE)) {
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return ECC_BAD_ARG_E;
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}
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if ((pub == NULL) || (priv == NULL) || (basepoint == NULL))
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return ECC_BAD_ARG_E;
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/* check clamping */
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ret = curve25519_priv_clamp_check(priv);
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if (ret != 0)
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return ret;
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fe_init();
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SAVE_VECTOR_REGISTERS(return _svr_ret;);
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ret = curve25519(pub, priv, basepoint);
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RESTORE_VECTOR_REGISTERS();
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return ret;
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#endif /* FREESCALE_LTC_ECC */
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}
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/* generate a new private key, as a bare vector.
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*
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* return value is propagated from wc_RNG_GenerateBlock(() (0 on success),
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* or BAD_FUNC_ARG/ECC_BAD_ARG_E, and the byte vector is little endian.
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*/
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int wc_curve25519_make_priv(WC_RNG* rng, int keysize, byte* key)
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{
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int ret;
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if (key == NULL || rng == NULL)
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return BAD_FUNC_ARG;
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/* currently only a key size of 32 bytes is used */
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if (keysize != CURVE25519_KEYSIZE)
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return ECC_BAD_ARG_E;
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/* random number for private key */
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ret = wc_RNG_GenerateBlock(rng, key, keysize);
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if (ret == 0) {
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/* Clamp the private key */
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ret = curve25519_priv_clamp(key);
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}
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return ret;
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}
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/* generate a new keypair.
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*
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* return value is propagated from wc_curve25519_make_private() or
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* wc_curve25519_make_pub() (0 on success).
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*/
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int wc_curve25519_make_key(WC_RNG* rng, int keysize, curve25519_key* key)
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{
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int ret;
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if (key == NULL || rng == NULL)
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return BAD_FUNC_ARG;
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#ifdef WOLF_CRYPTO_CB
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if (key->devId != INVALID_DEVID) {
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ret = wc_CryptoCb_Curve25519Gen(rng, keysize, key);
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if (ret != CRYPTOCB_UNAVAILABLE)
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return ret;
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/* fall-through when unavailable */
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}
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#endif
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#ifdef WOLFSSL_SE050
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ret = se050_curve25519_create_key(key, keysize);
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#else
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ret = wc_curve25519_make_priv(rng, keysize, key->k);
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if (ret == 0) {
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key->privSet = 1;
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ret = wc_curve25519_make_pub((int)sizeof(key->p.point), key->p.point,
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(int)sizeof(key->k), key->k);
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key->pubSet = (ret == 0);
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}
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#endif
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return ret;
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}
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#ifdef HAVE_CURVE25519_SHARED_SECRET
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int wc_curve25519_shared_secret(curve25519_key* private_key,
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curve25519_key* public_key,
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byte* out, word32* outlen)
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{
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return wc_curve25519_shared_secret_ex(private_key, public_key,
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out, outlen, EC25519_BIG_ENDIAN);
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}
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int wc_curve25519_shared_secret_ex(curve25519_key* private_key,
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curve25519_key* public_key,
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byte* out, word32* outlen, int endian)
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{
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int ret;
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ECPoint o;
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/* sanity check */
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if (private_key == NULL || public_key == NULL ||
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out == NULL || outlen == NULL || *outlen < CURVE25519_KEYSIZE) {
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return BAD_FUNC_ARG;
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}
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/* make sure we have a populated private and public key */
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if (!public_key->pubSet
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#ifndef WOLFSSL_SE050
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|| !private_key->privSet
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#endif
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) {
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return ECC_BAD_ARG_E;
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}
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/* avoid implementation fingerprinting - make sure signed bit is not set */
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if (public_key->p.point[CURVE25519_KEYSIZE-1] & 0x80) {
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return ECC_BAD_ARG_E;
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}
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#ifdef WOLF_CRYPTO_CB
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if (private_key->devId != INVALID_DEVID) {
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ret = wc_CryptoCb_Curve25519(private_key, public_key, out, outlen,
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endian);
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if (ret != CRYPTOCB_UNAVAILABLE)
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return ret;
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/* fall-through when unavailable */
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}
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#endif
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XMEMSET(&o, 0, sizeof(o));
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#ifdef FREESCALE_LTC_ECC
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/* input point P on Curve25519 */
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ret = nxp_ltc_curve25519(&o, private_key->k, &public_key->p,
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kLTC_Curve25519);
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#else
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#ifdef WOLFSSL_SE050
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if (!private_key->privSet) {
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/* use NXP SE050: "privSet" is not set */
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ret = se050_curve25519_shared_secret(private_key, public_key, &o);
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}
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else
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#endif
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{
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SAVE_VECTOR_REGISTERS(return _svr_ret;);
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ret = curve25519(o.point, private_key->k, public_key->p.point);
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RESTORE_VECTOR_REGISTERS();
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}
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#endif
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#ifdef WOLFSSL_ECDHX_SHARED_NOT_ZERO
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if (ret == 0) {
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int i;
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byte t = 0;
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for (i = 0; i < CURVE25519_KEYSIZE; i++) {
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t |= o.point[i];
|
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}
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if (t == 0) {
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ret = ECC_OUT_OF_RANGE_E;
|
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}
|
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}
|
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#endif
|
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if (ret != 0) {
|
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ForceZero(&o, sizeof(o));
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return ret;
|
||||
}
|
||||
|
||||
curve25519_copy_point(out, o.point, endian);
|
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*outlen = CURVE25519_KEYSIZE;
|
||||
|
||||
ForceZero(&o, sizeof(o));
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
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#endif /* HAVE_CURVE25519_SHARED_SECRET */
|
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|
||||
#ifdef HAVE_CURVE25519_KEY_EXPORT
|
||||
|
||||
/* export curve25519 public key (Big endian)
|
||||
* return 0 on success */
|
||||
int wc_curve25519_export_public(curve25519_key* key, byte* out, word32* outLen)
|
||||
{
|
||||
return wc_curve25519_export_public_ex(key, out, outLen, EC25519_BIG_ENDIAN);
|
||||
}
|
||||
|
||||
/* export curve25519 public key (Big or Little endian)
|
||||
* return 0 on success */
|
||||
int wc_curve25519_export_public_ex(curve25519_key* key, byte* out,
|
||||
word32* outLen, int endian)
|
||||
{
|
||||
int ret = 0;
|
||||
|
||||
if (key == NULL || out == NULL || outLen == NULL) {
|
||||
return BAD_FUNC_ARG;
|
||||
}
|
||||
|
||||
/* check and set outgoing key size */
|
||||
if (*outLen < CURVE25519_KEYSIZE) {
|
||||
*outLen = CURVE25519_KEYSIZE;
|
||||
return ECC_BAD_ARG_E;
|
||||
}
|
||||
|
||||
/* calculate public if missing */
|
||||
if (!key->pubSet) {
|
||||
ret = wc_curve25519_make_pub((int)sizeof(key->p.point), key->p.point,
|
||||
(int)sizeof(key->k), key->k);
|
||||
key->pubSet = (ret == 0);
|
||||
}
|
||||
/* export public point with endianess */
|
||||
curve25519_copy_point(out, key->p.point, endian);
|
||||
*outLen = CURVE25519_KEYSIZE;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
#endif /* HAVE_CURVE25519_KEY_EXPORT */
|
||||
|
||||
#ifdef HAVE_CURVE25519_KEY_IMPORT
|
||||
|
||||
/* import curve25519 public key (Big endian)
|
||||
* return 0 on success */
|
||||
int wc_curve25519_import_public(const byte* in, word32 inLen,
|
||||
curve25519_key* key)
|
||||
{
|
||||
return wc_curve25519_import_public_ex(in, inLen, key, EC25519_BIG_ENDIAN);
|
||||
}
|
||||
|
||||
/* import curve25519 public key (Big or Little endian)
|
||||
* return 0 on success */
|
||||
int wc_curve25519_import_public_ex(const byte* in, word32 inLen,
|
||||
curve25519_key* key, int endian)
|
||||
{
|
||||
#ifdef FREESCALE_LTC_ECC
|
||||
ltc_pkha_ecc_point_t ltcPoint;
|
||||
#endif
|
||||
|
||||
/* sanity check */
|
||||
if (key == NULL || in == NULL) {
|
||||
return BAD_FUNC_ARG;
|
||||
}
|
||||
|
||||
/* check size of incoming keys */
|
||||
if (inLen != CURVE25519_KEYSIZE) {
|
||||
return ECC_BAD_ARG_E;
|
||||
}
|
||||
|
||||
/* import public point with endianess */
|
||||
curve25519_copy_point(key->p.point, in, endian);
|
||||
key->pubSet = 1;
|
||||
|
||||
key->dp = &curve25519_sets[0];
|
||||
|
||||
/* LTC needs also Y coordinate - let's compute it */
|
||||
#ifdef FREESCALE_LTC_ECC
|
||||
ltcPoint.X = &key->p.point[0];
|
||||
ltcPoint.Y = &key->p.pointY[0];
|
||||
LTC_PKHA_Curve25519ComputeY(<cPoint);
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Check the public key value (big or little endian)
|
||||
*
|
||||
* pub Public key bytes.
|
||||
* pubSz Size of public key in bytes.
|
||||
* endian Public key bytes passed in as big-endian or little-endian.
|
||||
* returns BAD_FUNC_ARGS when pub is NULL,
|
||||
* BUFFER_E when size of public key is zero;
|
||||
* ECC_OUT_OF_RANGE_E if the high bit is set;
|
||||
* ECC_BAD_ARG_E if key length is not 32 bytes, public key value is
|
||||
* zero or one; and
|
||||
* 0 otherwise.
|
||||
*/
|
||||
int wc_curve25519_check_public(const byte* pub, word32 pubSz, int endian)
|
||||
{
|
||||
word32 i;
|
||||
|
||||
if (pub == NULL)
|
||||
return BAD_FUNC_ARG;
|
||||
|
||||
/* Check for empty key data */
|
||||
if (pubSz == 0)
|
||||
return BUFFER_E;
|
||||
|
||||
/* Check key length */
|
||||
if (pubSz != CURVE25519_KEYSIZE)
|
||||
return ECC_BAD_ARG_E;
|
||||
|
||||
|
||||
if (endian == EC25519_LITTLE_ENDIAN) {
|
||||
/* Check for value of zero or one */
|
||||
for (i = CURVE25519_KEYSIZE - 1; i > 0; i--) {
|
||||
if (pub[i] != 0)
|
||||
break;
|
||||
}
|
||||
if (i == 0 && (pub[0] == 0 || pub[0] == 1))
|
||||
return ECC_BAD_ARG_E;
|
||||
|
||||
/* Check high bit set */
|
||||
if (pub[CURVE25519_KEYSIZE - 1] & 0x80)
|
||||
return ECC_OUT_OF_RANGE_E;
|
||||
|
||||
/* Check for order-1 or higher. */
|
||||
if (pub[CURVE25519_KEYSIZE - 1] == 0x7f) {
|
||||
for (i = CURVE25519_KEYSIZE - 2; i > 0; i--) {
|
||||
if (pub[i] != 0xff)
|
||||
break;
|
||||
}
|
||||
if (i == 0 && (pub[0] >= 0xec))
|
||||
return ECC_BAD_ARG_E;
|
||||
}
|
||||
}
|
||||
else {
|
||||
/* Check for value of zero or one */
|
||||
for (i = 0; i < CURVE25519_KEYSIZE - 1; i++) {
|
||||
if (pub[i] != 0)
|
||||
break;
|
||||
}
|
||||
if (i == CURVE25519_KEYSIZE - 1 && (pub[i] == 0 || pub[i] == 1))
|
||||
return ECC_BAD_ARG_E;
|
||||
|
||||
/* Check high bit set */
|
||||
if (pub[0] & 0x80)
|
||||
return ECC_OUT_OF_RANGE_E;
|
||||
|
||||
/* Check for order-1 or higher. */
|
||||
if (pub[0] == 0x7f) {
|
||||
for (i = 1; i < CURVE25519_KEYSIZE - 1; i++) {
|
||||
if (pub[i] != 0)
|
||||
break;
|
||||
}
|
||||
if (i == CURVE25519_KEYSIZE - 1 && (pub[i] >= 0xec))
|
||||
return ECC_BAD_ARG_E;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif /* HAVE_CURVE25519_KEY_IMPORT */
|
||||
|
||||
|
||||
#ifdef HAVE_CURVE25519_KEY_EXPORT
|
||||
|
||||
/* export curve25519 private key only raw (Big endian)
|
||||
* outLen is in/out size
|
||||
* return 0 on success */
|
||||
int wc_curve25519_export_private_raw(curve25519_key* key, byte* out,
|
||||
word32* outLen)
|
||||
{
|
||||
return wc_curve25519_export_private_raw_ex(key, out, outLen,
|
||||
EC25519_BIG_ENDIAN);
|
||||
}
|
||||
|
||||
/* export curve25519 private key only raw (Big or Little endian)
|
||||
* outLen is in/out size
|
||||
* return 0 on success */
|
||||
int wc_curve25519_export_private_raw_ex(curve25519_key* key, byte* out,
|
||||
word32* outLen, int endian)
|
||||
{
|
||||
/* sanity check */
|
||||
if (key == NULL || out == NULL || outLen == NULL)
|
||||
return BAD_FUNC_ARG;
|
||||
|
||||
/* check size of outgoing buffer */
|
||||
if (*outLen < CURVE25519_KEYSIZE) {
|
||||
*outLen = CURVE25519_KEYSIZE;
|
||||
return ECC_BAD_ARG_E;
|
||||
}
|
||||
|
||||
/* export private scalar with endianess */
|
||||
curve25519_copy_point(out, key->k, endian);
|
||||
*outLen = CURVE25519_KEYSIZE;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* curve25519 key pair export (Big or Little endian)
|
||||
* return 0 on success */
|
||||
int wc_curve25519_export_key_raw(curve25519_key* key,
|
||||
byte* priv, word32 *privSz,
|
||||
byte* pub, word32 *pubSz)
|
||||
{
|
||||
return wc_curve25519_export_key_raw_ex(key, priv, privSz,
|
||||
pub, pubSz, EC25519_BIG_ENDIAN);
|
||||
}
|
||||
|
||||
/* curve25519 key pair export (Big or Little endian)
|
||||
* return 0 on success */
|
||||
int wc_curve25519_export_key_raw_ex(curve25519_key* key,
|
||||
byte* priv, word32 *privSz,
|
||||
byte* pub, word32 *pubSz,
|
||||
int endian)
|
||||
{
|
||||
int ret;
|
||||
|
||||
/* export private part */
|
||||
ret = wc_curve25519_export_private_raw_ex(key, priv, privSz, endian);
|
||||
if (ret != 0)
|
||||
return ret;
|
||||
|
||||
/* export public part */
|
||||
return wc_curve25519_export_public_ex(key, pub, pubSz, endian);
|
||||
}
|
||||
|
||||
#endif /* HAVE_CURVE25519_KEY_EXPORT */
|
||||
|
||||
#ifdef HAVE_CURVE25519_KEY_IMPORT
|
||||
|
||||
/* curve25519 private key import (Big endian)
|
||||
* Public key to match private key needs to be imported too
|
||||
* return 0 on success */
|
||||
int wc_curve25519_import_private_raw(const byte* priv, word32 privSz,
|
||||
const byte* pub, word32 pubSz,
|
||||
curve25519_key* key)
|
||||
{
|
||||
return wc_curve25519_import_private_raw_ex(priv, privSz, pub, pubSz,
|
||||
key, EC25519_BIG_ENDIAN);
|
||||
}
|
||||
|
||||
/* curve25519 private key import (Big or Little endian)
|
||||
* Public key to match private key needs to be imported too
|
||||
* return 0 on success */
|
||||
int wc_curve25519_import_private_raw_ex(const byte* priv, word32 privSz,
|
||||
const byte* pub, word32 pubSz,
|
||||
curve25519_key* key, int endian)
|
||||
{
|
||||
int ret;
|
||||
|
||||
/* import private part */
|
||||
ret = wc_curve25519_import_private_ex(priv, privSz, key, endian);
|
||||
if (ret != 0)
|
||||
return ret;
|
||||
|
||||
/* import public part */
|
||||
return wc_curve25519_import_public_ex(pub, pubSz, key, endian);
|
||||
}
|
||||
|
||||
/* curve25519 private key import only. (Big endian)
|
||||
* return 0 on success */
|
||||
int wc_curve25519_import_private(const byte* priv, word32 privSz,
|
||||
curve25519_key* key)
|
||||
{
|
||||
return wc_curve25519_import_private_ex(priv, privSz,
|
||||
key, EC25519_BIG_ENDIAN);
|
||||
}
|
||||
|
||||
/* curve25519 private key import only. (Big or Little endian)
|
||||
* return 0 on success */
|
||||
int wc_curve25519_import_private_ex(const byte* priv, word32 privSz,
|
||||
curve25519_key* key, int endian)
|
||||
{
|
||||
/* sanity check */
|
||||
if (key == NULL || priv == NULL) {
|
||||
return BAD_FUNC_ARG;
|
||||
}
|
||||
|
||||
/* check size of incoming keys */
|
||||
if ((int)privSz != CURVE25519_KEYSIZE) {
|
||||
return ECC_BAD_ARG_E;
|
||||
}
|
||||
|
||||
#ifdef WOLFSSL_SE050
|
||||
/* release NXP resources if set */
|
||||
se050_curve25519_free_key(key);
|
||||
#endif
|
||||
|
||||
/* import private scalar with endianess */
|
||||
curve25519_copy_point(key->k, priv, endian);
|
||||
key->privSet = 1;
|
||||
|
||||
key->dp = &curve25519_sets[0];
|
||||
|
||||
/* Clamp the key */
|
||||
return curve25519_priv_clamp(key->k);
|
||||
}
|
||||
|
||||
#endif /* HAVE_CURVE25519_KEY_IMPORT */
|
||||
|
||||
int wc_curve25519_init_ex(curve25519_key* key, void* heap, int devId)
|
||||
{
|
||||
if (key == NULL)
|
||||
return BAD_FUNC_ARG;
|
||||
|
||||
XMEMSET(key, 0, sizeof(*key));
|
||||
|
||||
/* currently the format for curve25519 */
|
||||
key->dp = &curve25519_sets[0];
|
||||
|
||||
#ifdef WOLF_CRYPTO_CB
|
||||
key->devId = devId;
|
||||
#else
|
||||
(void)devId;
|
||||
#endif
|
||||
(void)heap; /* if needed for XMALLOC/XFREE in future */
|
||||
|
||||
#ifndef FREESCALE_LTC_ECC
|
||||
fe_init();
|
||||
#endif
|
||||
|
||||
#ifdef WOLFSSL_CHECK_MEM_ZERO
|
||||
wc_MemZero_Add("wc_curve25519_init_ex key->k", key->k, CURVE25519_KEYSIZE);
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int wc_curve25519_init(curve25519_key* key)
|
||||
{
|
||||
return wc_curve25519_init_ex(key, NULL, INVALID_DEVID);
|
||||
}
|
||||
|
||||
/* Clean the memory of a key */
|
||||
void wc_curve25519_free(curve25519_key* key)
|
||||
{
|
||||
if (key == NULL)
|
||||
return;
|
||||
|
||||
#ifdef WOLFSSL_SE050
|
||||
se050_curve25519_free_key(key);
|
||||
#endif
|
||||
|
||||
key->dp = NULL;
|
||||
ForceZero(key->k, sizeof(key->k));
|
||||
XMEMSET(&key->p, 0, sizeof(key->p));
|
||||
key->pubSet = 0;
|
||||
key->privSet = 0;
|
||||
#ifdef WOLFSSL_CHECK_MEM_ZERO
|
||||
wc_MemZero_Check(key, sizeof(curve25519_key));
|
||||
#endif
|
||||
}
|
||||
|
||||
/* get key size */
|
||||
int wc_curve25519_size(curve25519_key* key)
|
||||
{
|
||||
if (key == NULL)
|
||||
return 0;
|
||||
|
||||
return key->dp->size;
|
||||
}
|
||||
|
||||
#endif /*HAVE_CURVE25519*/
|
||||
Reference in New Issue
Block a user