mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
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Update wolfSSL to the latest version(v.4.4.0) (#186)
* deleted old version wolfSSL before updating * updated wolfSSL to the latest version(v4.4.0) * updated wolfSSL to the latest version(v4.4.0) * added macros for timing resistance Co-authored-by: RichardBarry <3073890+RichardBarry@users.noreply.github.com> Co-authored-by: Ming Yue <mingyue86010@gmail.com>
This commit is contained in:
TakayukiMatsuo
GitHub
parent
68518f5866
commit
94aa31c3cb
1185 changed files with 837519 additions and 72138 deletions
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@ -1,8 +1,8 @@
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/* curve25519.c
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*
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* Copyright (C) 2006-2015 wolfSSL Inc.
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* Copyright (C) 2006-2020 wolfSSL Inc.
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*
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* This file is part of wolfSSL. (formerly known as CyaSSL)
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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
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@ -16,9 +16,10 @@
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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* 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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@ -35,202 +36,449 @@
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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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const curve25519_set_type curve25519_sets[] = {
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{
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32,
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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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};
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int wc_curve25519_make_key(RNG* rng, int keysize, curve25519_key* key)
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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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unsigned char basepoint[CURVE25519_KEYSIZE] = {9};
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unsigned char n[CURVE25519_KEYSIZE];
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unsigned char p[CURVE25519_KEYSIZE];
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int i;
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int ret;
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#ifdef FREESCALE_LTC_ECC
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const ECPoint* basepoint = wc_curve25519_GetBasePoint();
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#else
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unsigned char basepoint[CURVE25519_KEYSIZE] = {9};
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#endif
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int ret;
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if (key == NULL || rng == NULL)
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return ECC_BAD_ARG_E;
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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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/* 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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/* get random number from RNG */
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ret = wc_RNG_GenerateBlock(rng, n, keysize);
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if (ret != 0)
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return ret;
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#ifndef FREESCALE_LTC_ECC
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fe_init();
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#endif
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for (i = 0; i < keysize; ++i) key->k.point[i] = n[i];
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key->k.point[ 0] &= 248;
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key->k.point[31] &= 127;
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key->k.point[31] |= 64;
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/* random number for private key */
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ret = wc_RNG_GenerateBlock(rng, key->k.point, keysize);
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if (ret != 0)
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return ret;
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/* compute public key */
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ret = curve25519(p, key->k.point, basepoint);
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/* Clamp the private key */
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key->k.point[0] &= 248;
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key->k.point[CURVE25519_KEYSIZE-1] &= 63; /* same &=127 because |=64 after */
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key->k.point[CURVE25519_KEYSIZE-1] |= 64;
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/* store keys in big endian format */
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for (i = 0; i < keysize; ++i) n[i] = key->k.point[i];
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for (i = 0; i < keysize; ++i) {
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key->p.point[keysize - i - 1] = p[i];
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key->k.point[keysize - i - 1] = n[i];
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}
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/* compute public key */
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#ifdef FREESCALE_LTC_ECC
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ret = wc_curve25519(&key->p, key->k.point, basepoint, kLTC_Weierstrass); /* input basepoint on Weierstrass curve */
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#else
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ret = curve25519(key->p.point, key->k.point, basepoint);
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#endif
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if (ret != 0) {
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ForceZero(key->k.point, keysize);
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ForceZero(key->p.point, keysize);
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return ret;
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}
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ForceZero(n, keysize);
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ForceZero(p, keysize);
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return ret;
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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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unsigned char k[CURVE25519_KEYSIZE];
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unsigned char p[CURVE25519_KEYSIZE];
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unsigned char o[CURVE25519_KEYSIZE];
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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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#ifdef FREESCALE_LTC_ECC
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ECPoint o = {{0}};
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#else
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unsigned char o[CURVE25519_KEYSIZE];
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#endif
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int ret = 0;
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int i;
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/* sanity check */
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if (private_key == NULL || public_key == NULL || out == NULL ||
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outlen == NULL)
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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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/* avoid implementation fingerprinting */
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if (public_key->p.point[0] > 0x7F)
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if (public_key->p.point[CURVE25519_KEYSIZE-1] > 0x7F)
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return ECC_BAD_ARG_E;
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XMEMSET(p, 0, sizeof(p));
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XMEMSET(k, 0, sizeof(k));
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XMEMSET(out, 0, CURVE25519_KEYSIZE);
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for (i = 0; i < CURVE25519_KEYSIZE; ++i) {
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p[i] = public_key->p.point [CURVE25519_KEYSIZE - i - 1];
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k[i] = private_key->k.point[CURVE25519_KEYSIZE - i - 1];
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#ifdef FREESCALE_LTC_ECC
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ret = wc_curve25519(&o, private_key->k.point, &public_key->p, kLTC_Curve25519 /* input point P on Curve25519 */);
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#else
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ret = curve25519(o, private_key->k.point, public_key->p.point);
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#endif
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if (ret != 0) {
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#ifdef FREESCALE_LTC_ECC
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ForceZero(o.point, CURVE25519_KEYSIZE);
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ForceZero(o.pointY, CURVE25519_KEYSIZE);
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#else
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ForceZero(o, CURVE25519_KEYSIZE);
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#endif
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return ret;
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}
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ret = curve25519(o , k, p);
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if (endian == EC25519_BIG_ENDIAN) {
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int i;
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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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#ifdef FREESCALE_LTC_ECC
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out[i] = o.point[CURVE25519_KEYSIZE - i -1];
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#else
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out[i] = o[CURVE25519_KEYSIZE - i -1];
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#endif
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}
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else /* put shared secret key in Little Endian format */
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#ifdef FREESCALE_LTC_ECC
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XMEMCPY(out, o.point, CURVE25519_KEYSIZE);
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#else
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XMEMCPY(out, o, CURVE25519_KEYSIZE);
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#endif
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*outlen = CURVE25519_KEYSIZE;
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for (i = 0; i < CURVE25519_KEYSIZE; ++i) {
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out[i] = o[CURVE25519_KEYSIZE - i -1];
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}
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ForceZero(p, sizeof(p));
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ForceZero(k, sizeof(k));
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ForceZero(o, sizeof(o));
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#ifdef FREESCALE_LTC_ECC
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ForceZero(o.point, CURVE25519_KEYSIZE);
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ForceZero(o.pointY, CURVE25519_KEYSIZE);
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#else
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ForceZero(o, CURVE25519_KEYSIZE);
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#endif
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return ret;
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}
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#endif /* HAVE_CURVE25519_SHARED_SECRET */
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/* curve25519 uses a serialized string for key representation */
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#ifdef HAVE_CURVE25519_KEY_EXPORT
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/* export curve25519 public key (Big endian)
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* return 0 on success */
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int wc_curve25519_export_public(curve25519_key* key, byte* out, word32* outLen)
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{
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word32 keySz;
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return wc_curve25519_export_public_ex(key, out, outLen, EC25519_BIG_ENDIAN);
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}
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/* export curve25519 public key (Big or Little endian)
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* return 0 on success */
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int wc_curve25519_export_public_ex(curve25519_key* key, byte* out,
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word32* outLen, int endian)
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{
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if (key == NULL || out == NULL || outLen == NULL)
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return BAD_FUNC_ARG;
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/* check size of outgoing key */
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keySz = wc_curve25519_size(key);
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/* check and set outgoing key size */
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if (*outLen < CURVE25519_KEYSIZE) {
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*outLen = CURVE25519_KEYSIZE;
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return ECC_BAD_ARG_E;
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}
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*outLen = CURVE25519_KEYSIZE;
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/* copy in public key */
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XMEMCPY(out, key->p.point, keySz);
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*outLen = keySz;
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if (endian == EC25519_BIG_ENDIAN) {
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int i;
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/* read keys in Big Endian format */
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for (i = 0; i < CURVE25519_KEYSIZE; i++)
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out[i] = key->p.point[CURVE25519_KEYSIZE - i - 1];
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}
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else
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XMEMCPY(out, key->p.point, CURVE25519_KEYSIZE);
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return 0;
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}
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/* import curve25519 public key
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return 0 on success */
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#endif /* HAVE_CURVE25519_KEY_EXPORT */
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#ifdef HAVE_CURVE25519_KEY_IMPORT
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/* import curve25519 public key (Big endian)
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* return 0 on success */
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int wc_curve25519_import_public(const byte* in, word32 inLen,
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curve25519_key* key)
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{
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word32 keySz;
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return wc_curve25519_import_public_ex(in, inLen, key, EC25519_BIG_ENDIAN);
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}
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/* import curve25519 public key (Big or Little endian)
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* return 0 on success */
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int wc_curve25519_import_public_ex(const byte* in, word32 inLen,
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curve25519_key* key, int endian)
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{
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/* sanity check */
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if (key == NULL || in == NULL)
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return ECC_BAD_ARG_E;
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return BAD_FUNC_ARG;
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/* check size of incoming keys */
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keySz = wc_curve25519_size(key);
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if (inLen != keySz)
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if (inLen != CURVE25519_KEYSIZE)
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return ECC_BAD_ARG_E;
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XMEMCPY(key->p.point, in, inLen);
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if (endian == EC25519_BIG_ENDIAN) {
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int i;
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/* read keys in Big Endian format */
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for (i = 0; i < CURVE25519_KEYSIZE; i++)
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key->p.point[i] = in[CURVE25519_KEYSIZE - i - 1];
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}
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else
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XMEMCPY(key->p.point, in, inLen);
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key->dp = &curve25519_sets[0];
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/* LTC needs also Y coordinate - let's compute it */
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#ifdef FREESCALE_LTC_ECC
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ltc_pkha_ecc_point_t ltcPoint;
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ltcPoint.X = &key->p.point[0];
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ltcPoint.Y = &key->p.pointY[0];
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LTC_PKHA_Curve25519ComputeY(<cPoint);
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#endif
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return 0;
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}
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/* Check the public key value (big or little endian)
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*
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* pub Public key bytes.
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* pubSz Size of public key in bytes.
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* endian Public key bytes passed in as big-endian or little-endian.
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* returns BAD_FUNC_ARGS when pub is NULL,
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* BUFFER_E when size of public key is zero;
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* ECC_OUT_OF_RANGE_E if the high bit is set;
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* ECC_BAD_ARG_E if key length is not 32 bytes, public key value is
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* zero or one; and
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* 0 otherwise.
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*/
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int wc_curve25519_check_public(const byte* pub, word32 pubSz, int endian)
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{
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word32 i;
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/* export curve25519 private key only raw, outLen is in/out size
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return 0 on success */
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if (pub == NULL)
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return BAD_FUNC_ARG;
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/* Check for empty key data */
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if (pubSz == 0)
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return BUFFER_E;
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/* Check key length */
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if (pubSz != CURVE25519_KEYSIZE)
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return ECC_BAD_ARG_E;
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if (endian == EC25519_LITTLE_ENDIAN) {
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/* Check for value of zero or one */
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for (i = pubSz - 1; i > 0; i--) {
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if (pub[i] != 0)
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break;
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}
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if (i == 0 && (pub[0] == 0 || pub[0] == 1))
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return ECC_BAD_ARG_E;
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/* Check high bit set */
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if (pub[CURVE25519_KEYSIZE-1] & 0x80)
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return ECC_OUT_OF_RANGE_E;
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}
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else {
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/* Check for value of zero or one */
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for (i = 0; i < pubSz-1; i++) {
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if (pub[i] != 0)
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break;
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}
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if (i == pubSz - 1 && (pub[i] == 0 || pub[i] == 1))
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return ECC_BAD_ARG_E;
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/* Check high bit set */
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if (pub[0] & 0x80)
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return ECC_OUT_OF_RANGE_E;
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}
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return 0;
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}
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#endif /* HAVE_CURVE25519_KEY_IMPORT */
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#ifdef HAVE_CURVE25519_KEY_EXPORT
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/* export curve25519 private key only raw (Big endian)
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* outLen is in/out size
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* return 0 on success */
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int wc_curve25519_export_private_raw(curve25519_key* key, byte* out,
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word32* outLen)
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{
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word32 keySz;
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return wc_curve25519_export_private_raw_ex(key, out, outLen,
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EC25519_BIG_ENDIAN);
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}
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/* export curve25519 private key only raw (Big or Little endian)
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* outLen is in/out size
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* return 0 on success */
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int wc_curve25519_export_private_raw_ex(curve25519_key* key, byte* out,
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word32* outLen, int endian)
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{
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/* sanity check */
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if (key == NULL || out == NULL || outLen == NULL)
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return ECC_BAD_ARG_E;
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return BAD_FUNC_ARG;
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keySz = wc_curve25519_size(key);
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*outLen = keySz;
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XMEMSET(out, 0, keySz);
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XMEMCPY(out, key->k.point, keySz);
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/* check size of outgoing buffer */
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if (*outLen < CURVE25519_KEYSIZE) {
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*outLen = CURVE25519_KEYSIZE;
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return ECC_BAD_ARG_E;
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}
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*outLen = CURVE25519_KEYSIZE;
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if (endian == EC25519_BIG_ENDIAN) {
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int i;
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/* put the key in Big Endian format */
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for (i = 0; i < CURVE25519_KEYSIZE; i++)
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out[i] = key->k.point[CURVE25519_KEYSIZE - i - 1];
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}
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else
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XMEMCPY(out, key->k.point, CURVE25519_KEYSIZE);
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return 0;
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}
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/* curve25519 private key import.
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Public key to match private key needs to be imported too */
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int wc_curve25519_import_private_raw(const byte* priv, word32 privSz,
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const byte* pub, word32 pubSz, curve25519_key* key)
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/* curve25519 key pair export (Big or Little endian)
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* return 0 on success */
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int wc_curve25519_export_key_raw(curve25519_key* key,
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byte* priv, word32 *privSz,
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byte* pub, word32 *pubSz)
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{
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int ret = 0;
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word32 keySz;
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return wc_curve25519_export_key_raw_ex(key, priv, privSz,
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pub, pubSz, EC25519_BIG_ENDIAN);
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}
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/* curve25519 key pair export (Big or Little endian)
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* 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 || pub == NULL)
|
||||
return ECC_BAD_ARG_E;
|
||||
if (key == NULL || priv == NULL)
|
||||
return BAD_FUNC_ARG;
|
||||
|
||||
/* check size of incoming keys */
|
||||
keySz = wc_curve25519_size(key);
|
||||
if (privSz != keySz || pubSz != keySz)
|
||||
return ECC_BAD_ARG_E;
|
||||
if ((int)privSz != CURVE25519_KEYSIZE)
|
||||
return ECC_BAD_ARG_E;
|
||||
|
||||
XMEMCPY(key->k.point, priv, privSz);
|
||||
XMEMCPY(key->p.point, pub, pubSz);
|
||||
if (endian == EC25519_BIG_ENDIAN) {
|
||||
int i;
|
||||
|
||||
return ret;
|
||||
/* read the key in Big Endian format */
|
||||
for (i = 0; i < CURVE25519_KEYSIZE; i++)
|
||||
key->k.point[i] = priv[CURVE25519_KEYSIZE - i - 1];
|
||||
}
|
||||
else
|
||||
XMEMCPY(key->k.point, priv, CURVE25519_KEYSIZE);
|
||||
|
||||
key->dp = &curve25519_sets[0];
|
||||
|
||||
/* Clamp the key */
|
||||
key->k.point[0] &= 248;
|
||||
key->k.point[privSz-1] &= 63; /* same &=127 because |=64 after */
|
||||
key->k.point[privSz-1] |= 64;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif /* HAVE_CURVE25519_KEY_IMPORT */
|
||||
|
||||
|
||||
int wc_curve25519_init(curve25519_key* key)
|
||||
{
|
||||
word32 keySz;
|
||||
|
||||
if (key == NULL)
|
||||
return ECC_BAD_ARG_E;
|
||||
return BAD_FUNC_ARG;
|
||||
|
||||
XMEMSET(key, 0, sizeof(*key));
|
||||
|
||||
/* currently the format for curve25519 */
|
||||
key->dp = &curve25519_sets[0];
|
||||
keySz = key->dp->size;
|
||||
|
||||
XMEMSET(key->k.point, 0, keySz);
|
||||
XMEMSET(key->p.point, 0, keySz);
|
||||
#ifndef FREESCALE_LTC_ECC
|
||||
fe_init();
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -245,13 +493,18 @@ void wc_curve25519_free(curve25519_key* key)
|
|||
key->dp = NULL;
|
||||
ForceZero(key->p.point, sizeof(key->p.point));
|
||||
ForceZero(key->k.point, sizeof(key->k.point));
|
||||
#ifdef FREESCALE_LTC_ECC
|
||||
ForceZero(key->p.point, sizeof(key->p.pointY));
|
||||
ForceZero(key->k.point, sizeof(key->k.pointY));
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
/* get key size */
|
||||
int wc_curve25519_size(curve25519_key* key)
|
||||
{
|
||||
if (key == NULL) return 0;
|
||||
if (key == NULL)
|
||||
return 0;
|
||||
|
||||
return key->dp->size;
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue