summaryrefslogtreecommitdiff
path: root/deps/openssl/openssl/crypto/ec/ecp_smpl.c
diff options
context:
space:
mode:
authorSam Roberts <vieuxtech@gmail.com>2018-11-22 10:39:20 -0800
committerSam Roberts <vieuxtech@gmail.com>2019-01-22 13:32:34 -0800
commit4231ad04f0b2aee5bda6be94715d4b70badaac8b (patch)
tree19f189fae6828708ebd37e466ce4a7716494b96a /deps/openssl/openssl/crypto/ec/ecp_smpl.c
parent5d80f9ea6091847176fa47fb1395fdffc4af9164 (diff)
downloadandroid-node-v8-4231ad04f0b2aee5bda6be94715d4b70badaac8b.tar.gz
android-node-v8-4231ad04f0b2aee5bda6be94715d4b70badaac8b.tar.bz2
android-node-v8-4231ad04f0b2aee5bda6be94715d4b70badaac8b.zip
deps: upgrade openssl sources to 1.1.1a
This updates all sources in deps/openssl/openssl with openssl-1.1.1a. PR-URL: https://github.com/nodejs/node/pull/25381 Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com> Reviewed-By: Shigeki Ohtsu <ohtsu@ohtsu.org>
Diffstat (limited to 'deps/openssl/openssl/crypto/ec/ecp_smpl.c')
-rw-r--r--deps/openssl/openssl/crypto/ec/ecp_smpl.c246
1 files changed, 233 insertions, 13 deletions
diff --git a/deps/openssl/openssl/crypto/ec/ecp_smpl.c b/deps/openssl/openssl/crypto/ec/ecp_smpl.c
index adfb194576..d0c5557ff4 100644
--- a/deps/openssl/openssl/crypto/ec/ecp_smpl.c
+++ b/deps/openssl/openssl/crypto/ec/ecp_smpl.c
@@ -1,5 +1,6 @@
/*
* Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
@@ -7,12 +8,6 @@
* https://www.openssl.org/source/license.html
*/
-/* ====================================================================
- * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
- * Portions of this software developed by SUN MICROSYSTEMS, INC.,
- * and contributed to the OpenSSL project.
- */
-
#include <openssl/err.h>
#include <openssl/symhacks.h>
@@ -68,7 +63,11 @@ const EC_METHOD *EC_GFp_simple_method(void)
0, /* keycopy */
0, /* keyfinish */
ecdh_simple_compute_key,
- ec_GFp_simple_blind_coordinates
+ 0, /* field_inverse_mod_ord */
+ ec_GFp_simple_blind_coordinates,
+ ec_GFp_simple_ladder_pre,
+ ec_GFp_simple_ladder_step,
+ ec_GFp_simple_ladder_post
};
return &ret;
@@ -1182,9 +1181,9 @@ int ec_GFp_simple_make_affine(const EC_GROUP *group, EC_POINT *point,
if (y == NULL)
goto err;
- if (!EC_POINT_get_affine_coordinates_GFp(group, point, x, y, ctx))
+ if (!EC_POINT_get_affine_coordinates(group, point, x, y, ctx))
goto err;
- if (!EC_POINT_set_affine_coordinates_GFp(group, point, x, y, ctx))
+ if (!EC_POINT_set_affine_coordinates(group, point, x, y, ctx))
goto err;
if (!point->Z_is_one) {
ECerr(EC_F_EC_GFP_SIMPLE_MAKE_AFFINE, ERR_R_INTERNAL_ERROR);
@@ -1220,7 +1219,7 @@ int ec_GFp_simple_points_make_affine(const EC_GROUP *group, size_t num,
BN_CTX_start(ctx);
tmp = BN_CTX_get(ctx);
tmp_Z = BN_CTX_get(ctx);
- if (tmp == NULL || tmp_Z == NULL)
+ if (tmp_Z == NULL)
goto err;
prod_Z = OPENSSL_malloc(num * sizeof(prod_Z[0]));
@@ -1394,7 +1393,7 @@ int ec_GFp_simple_blind_coordinates(const EC_GROUP *group, EC_POINT *p,
/* make sure lambda is not zero */
do {
- if (!BN_rand_range(lambda, group->field)) {
+ if (!BN_priv_rand_range(lambda, group->field)) {
ECerr(EC_F_EC_GFP_SIMPLE_BLIND_COORDINATES, ERR_R_BN_LIB);
goto err;
}
@@ -1419,6 +1418,227 @@ int ec_GFp_simple_blind_coordinates(const EC_GROUP *group, EC_POINT *p,
ret = 1;
err:
- BN_CTX_end(ctx);
- return ret;
+ BN_CTX_end(ctx);
+ return ret;
+}
+
+/*-
+ * Set s := p, r := 2p.
+ *
+ * For doubling we use Formula 3 from Izu-Takagi "A fast parallel elliptic curve
+ * multiplication resistant against side channel attacks" appendix, as described
+ * at
+ * https://hyperelliptic.org/EFD/g1p/auto-shortw-xz.html#doubling-dbl-2002-it-2
+ *
+ * The input point p will be in randomized Jacobian projective coords:
+ * x = X/Z**2, y=Y/Z**3
+ *
+ * The output points p, s, and r are converted to standard (homogeneous)
+ * projective coords:
+ * x = X/Z, y=Y/Z
+ */
+int ec_GFp_simple_ladder_pre(const EC_GROUP *group,
+ EC_POINT *r, EC_POINT *s,
+ EC_POINT *p, BN_CTX *ctx)
+{
+ BIGNUM *t1, *t2, *t3, *t4, *t5, *t6 = NULL;
+
+ t1 = r->Z;
+ t2 = r->Y;
+ t3 = s->X;
+ t4 = r->X;
+ t5 = s->Y;
+ t6 = s->Z;
+
+ /* convert p: (X,Y,Z) -> (XZ,Y,Z**3) */
+ if (!group->meth->field_mul(group, p->X, p->X, p->Z, ctx)
+ || !group->meth->field_sqr(group, t1, p->Z, ctx)
+ || !group->meth->field_mul(group, p->Z, p->Z, t1, ctx)
+ /* r := 2p */
+ || !group->meth->field_sqr(group, t2, p->X, ctx)
+ || !group->meth->field_sqr(group, t3, p->Z, ctx)
+ || !group->meth->field_mul(group, t4, t3, group->a, ctx)
+ || !BN_mod_sub_quick(t5, t2, t4, group->field)
+ || !BN_mod_add_quick(t2, t2, t4, group->field)
+ || !group->meth->field_sqr(group, t5, t5, ctx)
+ || !group->meth->field_mul(group, t6, t3, group->b, ctx)
+ || !group->meth->field_mul(group, t1, p->X, p->Z, ctx)
+ || !group->meth->field_mul(group, t4, t1, t6, ctx)
+ || !BN_mod_lshift_quick(t4, t4, 3, group->field)
+ /* r->X coord output */
+ || !BN_mod_sub_quick(r->X, t5, t4, group->field)
+ || !group->meth->field_mul(group, t1, t1, t2, ctx)
+ || !group->meth->field_mul(group, t2, t3, t6, ctx)
+ || !BN_mod_add_quick(t1, t1, t2, group->field)
+ /* r->Z coord output */
+ || !BN_mod_lshift_quick(r->Z, t1, 2, group->field)
+ || !EC_POINT_copy(s, p))
+ return 0;
+
+ r->Z_is_one = 0;
+ s->Z_is_one = 0;
+ p->Z_is_one = 0;
+
+ return 1;
+}
+
+/*-
+ * Differential addition-and-doubling using Eq. (9) and (10) from Izu-Takagi
+ * "A fast parallel elliptic curve multiplication resistant against side channel
+ * attacks", as described at
+ * https://hyperelliptic.org/EFD/g1p/auto-shortw-xz.html#ladder-ladd-2002-it-4
+ */
+int ec_GFp_simple_ladder_step(const EC_GROUP *group,
+ EC_POINT *r, EC_POINT *s,
+ EC_POINT *p, BN_CTX *ctx)
+{
+ int ret = 0;
+ BIGNUM *t0, *t1, *t2, *t3, *t4, *t5, *t6, *t7 = NULL;
+
+ BN_CTX_start(ctx);
+ t0 = BN_CTX_get(ctx);
+ t1 = BN_CTX_get(ctx);
+ t2 = BN_CTX_get(ctx);
+ t3 = BN_CTX_get(ctx);
+ t4 = BN_CTX_get(ctx);
+ t5 = BN_CTX_get(ctx);
+ t6 = BN_CTX_get(ctx);
+ t7 = BN_CTX_get(ctx);
+
+ if (t7 == NULL
+ || !group->meth->field_mul(group, t0, r->X, s->X, ctx)
+ || !group->meth->field_mul(group, t1, r->Z, s->Z, ctx)
+ || !group->meth->field_mul(group, t2, r->X, s->Z, ctx)
+ || !group->meth->field_mul(group, t3, r->Z, s->X, ctx)
+ || !group->meth->field_mul(group, t4, group->a, t1, ctx)
+ || !BN_mod_add_quick(t0, t0, t4, group->field)
+ || !BN_mod_add_quick(t4, t3, t2, group->field)
+ || !group->meth->field_mul(group, t0, t4, t0, ctx)
+ || !group->meth->field_sqr(group, t1, t1, ctx)
+ || !BN_mod_lshift_quick(t7, group->b, 2, group->field)
+ || !group->meth->field_mul(group, t1, t7, t1, ctx)
+ || !BN_mod_lshift1_quick(t0, t0, group->field)
+ || !BN_mod_add_quick(t0, t1, t0, group->field)
+ || !BN_mod_sub_quick(t1, t2, t3, group->field)
+ || !group->meth->field_sqr(group, t1, t1, ctx)
+ || !group->meth->field_mul(group, t3, t1, p->X, ctx)
+ || !group->meth->field_mul(group, t0, p->Z, t0, ctx)
+ /* s->X coord output */
+ || !BN_mod_sub_quick(s->X, t0, t3, group->field)
+ /* s->Z coord output */
+ || !group->meth->field_mul(group, s->Z, p->Z, t1, ctx)
+ || !group->meth->field_sqr(group, t3, r->X, ctx)
+ || !group->meth->field_sqr(group, t2, r->Z, ctx)
+ || !group->meth->field_mul(group, t4, t2, group->a, ctx)
+ || !BN_mod_add_quick(t5, r->X, r->Z, group->field)
+ || !group->meth->field_sqr(group, t5, t5, ctx)
+ || !BN_mod_sub_quick(t5, t5, t3, group->field)
+ || !BN_mod_sub_quick(t5, t5, t2, group->field)
+ || !BN_mod_sub_quick(t6, t3, t4, group->field)
+ || !group->meth->field_sqr(group, t6, t6, ctx)
+ || !group->meth->field_mul(group, t0, t2, t5, ctx)
+ || !group->meth->field_mul(group, t0, t7, t0, ctx)
+ /* r->X coord output */
+ || !BN_mod_sub_quick(r->X, t6, t0, group->field)
+ || !BN_mod_add_quick(t6, t3, t4, group->field)
+ || !group->meth->field_sqr(group, t3, t2, ctx)
+ || !group->meth->field_mul(group, t7, t3, t7, ctx)
+ || !group->meth->field_mul(group, t5, t5, t6, ctx)
+ || !BN_mod_lshift1_quick(t5, t5, group->field)
+ /* r->Z coord output */
+ || !BN_mod_add_quick(r->Z, t7, t5, group->field))
+ goto err;
+
+ ret = 1;
+
+ err:
+ BN_CTX_end(ctx);
+ return ret;
+}
+
+/*-
+ * Recovers the y-coordinate of r using Eq. (8) from Brier-Joye, "Weierstrass
+ * Elliptic Curves and Side-Channel Attacks", modified to work in projective
+ * coordinates and return r in Jacobian projective coordinates.
+ *
+ * X4 = two*Y1*X2*Z3*Z2*Z1;
+ * Y4 = two*b*Z3*SQR(Z2*Z1) + Z3*(a*Z2*Z1+X1*X2)*(X1*Z2+X2*Z1) - X3*SQR(X1*Z2-X2*Z1);
+ * Z4 = two*Y1*Z3*SQR(Z2)*Z1;
+ *
+ * Z4 != 0 because:
+ * - Z1==0 implies p is at infinity, which would have caused an early exit in
+ * the caller;
+ * - Z2==0 implies r is at infinity (handled by the BN_is_zero(r->Z) branch);
+ * - Z3==0 implies s is at infinity (handled by the BN_is_zero(s->Z) branch);
+ * - Y1==0 implies p has order 2, so either r or s are infinity and handled by
+ * one of the BN_is_zero(...) branches.
+ */
+int ec_GFp_simple_ladder_post(const EC_GROUP *group,
+ EC_POINT *r, EC_POINT *s,
+ EC_POINT *p, BN_CTX *ctx)
+{
+ int ret = 0;
+ BIGNUM *t0, *t1, *t2, *t3, *t4, *t5, *t6 = NULL;
+
+ if (BN_is_zero(r->Z))
+ return EC_POINT_set_to_infinity(group, r);
+
+ if (BN_is_zero(s->Z)) {
+ /* (X,Y,Z) -> (XZ,YZ**2,Z) */
+ if (!group->meth->field_mul(group, r->X, p->X, p->Z, ctx)
+ || !group->meth->field_sqr(group, r->Z, p->Z, ctx)
+ || !group->meth->field_mul(group, r->Y, p->Y, r->Z, ctx)
+ || !BN_copy(r->Z, p->Z)
+ || !EC_POINT_invert(group, r, ctx))
+ return 0;
+ return 1;
+ }
+
+ BN_CTX_start(ctx);
+ t0 = BN_CTX_get(ctx);
+ t1 = BN_CTX_get(ctx);
+ t2 = BN_CTX_get(ctx);
+ t3 = BN_CTX_get(ctx);
+ t4 = BN_CTX_get(ctx);
+ t5 = BN_CTX_get(ctx);
+ t6 = BN_CTX_get(ctx);
+
+ if (t6 == NULL
+ || !BN_mod_lshift1_quick(t0, p->Y, group->field)
+ || !group->meth->field_mul(group, t1, r->X, p->Z, ctx)
+ || !group->meth->field_mul(group, t2, r->Z, s->Z, ctx)
+ || !group->meth->field_mul(group, t2, t1, t2, ctx)
+ || !group->meth->field_mul(group, t3, t2, t0, ctx)
+ || !group->meth->field_mul(group, t2, r->Z, p->Z, ctx)
+ || !group->meth->field_sqr(group, t4, t2, ctx)
+ || !BN_mod_lshift1_quick(t5, group->b, group->field)
+ || !group->meth->field_mul(group, t4, t4, t5, ctx)
+ || !group->meth->field_mul(group, t6, t2, group->a, ctx)
+ || !group->meth->field_mul(group, t5, r->X, p->X, ctx)
+ || !BN_mod_add_quick(t5, t6, t5, group->field)
+ || !group->meth->field_mul(group, t6, r->Z, p->X, ctx)
+ || !BN_mod_add_quick(t2, t6, t1, group->field)
+ || !group->meth->field_mul(group, t5, t5, t2, ctx)
+ || !BN_mod_sub_quick(t6, t6, t1, group->field)
+ || !group->meth->field_sqr(group, t6, t6, ctx)
+ || !group->meth->field_mul(group, t6, t6, s->X, ctx)
+ || !BN_mod_add_quick(t4, t5, t4, group->field)
+ || !group->meth->field_mul(group, t4, t4, s->Z, ctx)
+ || !BN_mod_sub_quick(t4, t4, t6, group->field)
+ || !group->meth->field_sqr(group, t5, r->Z, ctx)
+ || !group->meth->field_mul(group, r->Z, p->Z, s->Z, ctx)
+ || !group->meth->field_mul(group, r->Z, t5, r->Z, ctx)
+ || !group->meth->field_mul(group, r->Z, r->Z, t0, ctx)
+ /* t3 := X, t4 := Y */
+ /* (X,Y,Z) -> (XZ,YZ**2,Z) */
+ || !group->meth->field_mul(group, r->X, t3, r->Z, ctx)
+ || !group->meth->field_sqr(group, t3, r->Z, ctx)
+ || !group->meth->field_mul(group, r->Y, t4, t3, ctx))
+ goto err;
+
+ ret = 1;
+
+ err:
+ BN_CTX_end(ctx);
+ return ret;
}