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-rw-r--r--openssl/crypto/ec/Makefile2
-rwxr-xr-xopenssl/crypto/ec/asm/ecp_nistz256-x86_64.pl28
-rw-r--r--openssl/crypto/ec/ec.h11
-rw-r--r--openssl/crypto/ec/ec2_oct.c2
-rw-r--r--openssl/crypto/ec/ec_asn1.c20
-rw-r--r--openssl/crypto/ec/ec_check.c2
-rw-r--r--openssl/crypto/ec/ec_err.c15
-rw-r--r--openssl/crypto/ec/ec_key.c2
-rw-r--r--openssl/crypto/ec/ec_lcl.h8
-rw-r--r--openssl/crypto/ec/ec_lib.c7
-rw-r--r--openssl/crypto/ec/eck_prn.c4
-rwxr-xr-xopenssl/crypto/ec/ecp_nistz256.c135
-rw-r--r--openssl/crypto/ec/ecp_oct.c2
-rw-r--r--openssl/crypto/ec/ectest.c24
14 files changed, 160 insertions, 102 deletions
diff --git a/openssl/crypto/ec/Makefile b/openssl/crypto/ec/Makefile
index 0d9f3ab25..359ef4e40 100644
--- a/openssl/crypto/ec/Makefile
+++ b/openssl/crypto/ec/Makefile
@@ -78,6 +78,8 @@ tests:
lint:
lint -DLINT $(INCLUDES) $(SRC)>fluff
+update: depend
+
depend:
@[ -n "$(MAKEDEPEND)" ] # should be set by upper Makefile...
$(MAKEDEPEND) -- $(CFLAG) $(INCLUDES) $(DEPFLAG) -- $(PROGS) $(LIBSRC)
diff --git a/openssl/crypto/ec/asm/ecp_nistz256-x86_64.pl b/openssl/crypto/ec/asm/ecp_nistz256-x86_64.pl
index 5b21574a2..84379fce1 100755
--- a/openssl/crypto/ec/asm/ecp_nistz256-x86_64.pl
+++ b/openssl/crypto/ec/asm/ecp_nistz256-x86_64.pl
@@ -30,20 +30,24 @@
# Further optimization by <appro@openssl.org>:
#
-# this/original
-# Opteron +12-49%
-# Bulldozer +14-45%
-# P4 +18-46%
-# Westmere +12-34%
-# Sandy Bridge +9-35%
-# Ivy Bridge +9-35%
-# Haswell +8-37%
-# Broadwell +18-58%
-# Atom +15-50%
-# VIA Nano +43-160%
+# this/original with/without -DECP_NISTZ256_ASM(*)
+# Opteron +12-49% +110-150%
+# Bulldozer +14-45% +175-210%
+# P4 +18-46% n/a :-(
+# Westmere +12-34% +80-87%
+# Sandy Bridge +9-35% +110-120%
+# Ivy Bridge +9-35% +110-125%
+# Haswell +8-37% +140-160%
+# Broadwell +18-58% +145-210%
+# Atom +15-50% +130-180%
+# VIA Nano +43-160% +300-480%
+#
+# (*) "without -DECP_NISTZ256_ASM" refers to build with
+# "enable-ec_nistp_64_gcc_128";
#
# Ranges denote minimum and maximum improvement coefficients depending
-# on benchmark.
+# on benchmark. Lower coefficients are for ECDSA sign, relatively fastest
+# server-side operation. Keep in mind that +100% means 2x improvement.
$flavour = shift;
$output = shift;
diff --git a/openssl/crypto/ec/ec.h b/openssl/crypto/ec/ec.h
index 98edfdf8b..6d3178f60 100644
--- a/openssl/crypto/ec/ec.h
+++ b/openssl/crypto/ec/ec.h
@@ -1097,6 +1097,12 @@ void ERR_load_EC_strings(void);
# define EC_F_ECPARAMETERS_PRINT_FP 148
# define EC_F_ECPKPARAMETERS_PRINT 149
# define EC_F_ECPKPARAMETERS_PRINT_FP 150
+# define EC_F_ECP_NISTZ256_GET_AFFINE 240
+# define EC_F_ECP_NISTZ256_MULT_PRECOMPUTE 243
+# define EC_F_ECP_NISTZ256_POINTS_MUL 241
+# define EC_F_ECP_NISTZ256_PRE_COMP_NEW 244
+# define EC_F_ECP_NISTZ256_SET_WORDS 245
+# define EC_F_ECP_NISTZ256_WINDOWED_MUL 242
# define EC_F_ECP_NIST_MOD_192 203
# define EC_F_ECP_NIST_MOD_224 204
# define EC_F_ECP_NIST_MOD_256 205
@@ -1208,11 +1214,6 @@ void ERR_load_EC_strings(void);
# define EC_F_NISTP224_PRE_COMP_NEW 227
# define EC_F_NISTP256_PRE_COMP_NEW 236
# define EC_F_NISTP521_PRE_COMP_NEW 237
-# define EC_F_ECP_NISTZ256_GET_AFFINE 240
-# define EC_F_ECP_NISTZ256_POINTS_MUL 241
-# define EC_F_ECP_NISTZ256_WINDOWED_MUL 242
-# define EC_F_ECP_NISTZ256_MULT_PRECOMPUTE 243
-# define EC_F_ECP_NISTZ256_PRE_COMP_NEW 244
# define EC_F_O2I_ECPUBLICKEY 152
# define EC_F_OLD_EC_PRIV_DECODE 222
# define EC_F_PKEY_EC_CTRL 197
diff --git a/openssl/crypto/ec/ec2_oct.c b/openssl/crypto/ec/ec2_oct.c
index c245d886d..0d04cc692 100644
--- a/openssl/crypto/ec/ec2_oct.c
+++ b/openssl/crypto/ec/ec2_oct.c
@@ -387,7 +387,7 @@ int ec_GF2m_simple_oct2point(const EC_GROUP *group, EC_POINT *point,
}
/* test required by X9.62 */
- if (!EC_POINT_is_on_curve(group, point, ctx)) {
+ if (EC_POINT_is_on_curve(group, point, ctx) <= 0) {
ECerr(EC_F_EC_GF2M_SIMPLE_OCT2POINT, EC_R_POINT_IS_NOT_ON_CURVE);
goto err;
}
diff --git a/openssl/crypto/ec/ec_asn1.c b/openssl/crypto/ec/ec_asn1.c
index b4b0e9f3b..4ad849498 100644
--- a/openssl/crypto/ec/ec_asn1.c
+++ b/openssl/crypto/ec/ec_asn1.c
@@ -1114,7 +1114,7 @@ int i2d_ECPrivateKey(EC_KEY *a, unsigned char **out)
{
int ret = 0, ok = 0;
unsigned char *buffer = NULL;
- size_t buf_len = 0, tmp_len;
+ size_t buf_len = 0, tmp_len, bn_len;
EC_PRIVATEKEY *priv_key = NULL;
if (a == NULL || a->group == NULL || a->priv_key == NULL ||
@@ -1130,18 +1130,32 @@ int i2d_ECPrivateKey(EC_KEY *a, unsigned char **out)
priv_key->version = a->version;
- buf_len = (size_t)BN_num_bytes(a->priv_key);
+ bn_len = (size_t)BN_num_bytes(a->priv_key);
+
+ /* Octetstring may need leading zeros if BN is to short */
+
+ buf_len = (EC_GROUP_get_degree(a->group) + 7) / 8;
+
+ if (bn_len > buf_len) {
+ ECerr(EC_F_I2D_ECPRIVATEKEY, EC_R_BUFFER_TOO_SMALL);
+ goto err;
+ }
+
buffer = OPENSSL_malloc(buf_len);
if (buffer == NULL) {
ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE);
goto err;
}
- if (!BN_bn2bin(a->priv_key, buffer)) {
+ if (!BN_bn2bin(a->priv_key, buffer + buf_len - bn_len)) {
ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_BN_LIB);
goto err;
}
+ if (buf_len - bn_len > 0) {
+ memset(buffer, 0, buf_len - bn_len);
+ }
+
if (!M_ASN1_OCTET_STRING_set(priv_key->privateKey, buffer, buf_len)) {
ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_ASN1_LIB);
goto err;
diff --git a/openssl/crypto/ec/ec_check.c b/openssl/crypto/ec/ec_check.c
index d3f534999..dd6f0ac40 100644
--- a/openssl/crypto/ec/ec_check.c
+++ b/openssl/crypto/ec/ec_check.c
@@ -85,7 +85,7 @@ int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx)
ECerr(EC_F_EC_GROUP_CHECK, EC_R_UNDEFINED_GENERATOR);
goto err;
}
- if (!EC_POINT_is_on_curve(group, group->generator, ctx)) {
+ if (EC_POINT_is_on_curve(group, group->generator, ctx) <= 0) {
ECerr(EC_F_EC_GROUP_CHECK, EC_R_POINT_IS_NOT_ON_CURVE);
goto err;
}
diff --git a/openssl/crypto/ec/ec_err.c b/openssl/crypto/ec/ec_err.c
index 13b32c78a..6fe5baafd 100644
--- a/openssl/crypto/ec/ec_err.c
+++ b/openssl/crypto/ec/ec_err.c
@@ -1,6 +1,6 @@
/* crypto/ec/ec_err.c */
/* ====================================================================
- * Copyright (c) 1999-2014 The OpenSSL Project. All rights reserved.
+ * Copyright (c) 1999-2015 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -89,6 +89,13 @@ static ERR_STRING_DATA EC_str_functs[] = {
{ERR_FUNC(EC_F_ECPARAMETERS_PRINT_FP), "ECParameters_print_fp"},
{ERR_FUNC(EC_F_ECPKPARAMETERS_PRINT), "ECPKParameters_print"},
{ERR_FUNC(EC_F_ECPKPARAMETERS_PRINT_FP), "ECPKParameters_print_fp"},
+ {ERR_FUNC(EC_F_ECP_NISTZ256_GET_AFFINE), "ecp_nistz256_get_affine"},
+ {ERR_FUNC(EC_F_ECP_NISTZ256_MULT_PRECOMPUTE),
+ "ecp_nistz256_mult_precompute"},
+ {ERR_FUNC(EC_F_ECP_NISTZ256_POINTS_MUL), "ecp_nistz256_points_mul"},
+ {ERR_FUNC(EC_F_ECP_NISTZ256_PRE_COMP_NEW), "ecp_nistz256_pre_comp_new"},
+ {ERR_FUNC(EC_F_ECP_NISTZ256_SET_WORDS), "ecp_nistz256_set_words"},
+ {ERR_FUNC(EC_F_ECP_NISTZ256_WINDOWED_MUL), "ecp_nistz256_windowed_mul"},
{ERR_FUNC(EC_F_ECP_NIST_MOD_192), "ECP_NIST_MOD_192"},
{ERR_FUNC(EC_F_ECP_NIST_MOD_224), "ECP_NIST_MOD_224"},
{ERR_FUNC(EC_F_ECP_NIST_MOD_256), "ECP_NIST_MOD_256"},
@@ -239,12 +246,6 @@ static ERR_STRING_DATA EC_str_functs[] = {
{ERR_FUNC(EC_F_NISTP224_PRE_COMP_NEW), "NISTP224_PRE_COMP_NEW"},
{ERR_FUNC(EC_F_NISTP256_PRE_COMP_NEW), "NISTP256_PRE_COMP_NEW"},
{ERR_FUNC(EC_F_NISTP521_PRE_COMP_NEW), "NISTP521_PRE_COMP_NEW"},
- {ERR_FUNC(EC_F_ECP_NISTZ256_GET_AFFINE), "ecp_nistz256_get_affine"},
- {ERR_FUNC(EC_F_ECP_NISTZ256_POINTS_MUL), "ecp_nistz256_points_mul"},
- {ERR_FUNC(EC_F_ECP_NISTZ256_WINDOWED_MUL), "ecp_nistz256_windowed_mul"},
- {ERR_FUNC(EC_F_ECP_NISTZ256_MULT_PRECOMPUTE),
- "ecp_nistz256_mult_precompute"},
- {ERR_FUNC(EC_F_ECP_NISTZ256_PRE_COMP_NEW), "ecp_nistz256_pre_comp_new"},
{ERR_FUNC(EC_F_O2I_ECPUBLICKEY), "o2i_ECPublicKey"},
{ERR_FUNC(EC_F_OLD_EC_PRIV_DECODE), "OLD_EC_PRIV_DECODE"},
{ERR_FUNC(EC_F_PKEY_EC_CTRL), "PKEY_EC_CTRL"},
diff --git a/openssl/crypto/ec/ec_key.c b/openssl/crypto/ec/ec_key.c
index ebdffc821..55ce3fe9b 100644
--- a/openssl/crypto/ec/ec_key.c
+++ b/openssl/crypto/ec/ec_key.c
@@ -314,7 +314,7 @@ int EC_KEY_check_key(const EC_KEY *eckey)
goto err;
/* testing whether the pub_key is on the elliptic curve */
- if (!EC_POINT_is_on_curve(eckey->group, eckey->pub_key, ctx)) {
+ if (EC_POINT_is_on_curve(eckey->group, eckey->pub_key, ctx) <= 0) {
ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_POINT_IS_NOT_ON_CURVE);
goto err;
}
diff --git a/openssl/crypto/ec/ec_lcl.h b/openssl/crypto/ec/ec_lcl.h
index 697eeb528..969fd147e 100644
--- a/openssl/crypto/ec/ec_lcl.h
+++ b/openssl/crypto/ec/ec_lcl.h
@@ -459,14 +459,6 @@ int ec_GF2m_simple_mul(const EC_GROUP *group, EC_POINT *r,
int ec_GF2m_precompute_mult(EC_GROUP *group, BN_CTX *ctx);
int ec_GF2m_have_precompute_mult(const EC_GROUP *group);
-/* method functions in ec2_mult.c */
-int ec_GF2m_simple_mul(const EC_GROUP *group, EC_POINT *r,
- const BIGNUM *scalar, size_t num,
- const EC_POINT *points[], const BIGNUM *scalars[],
- BN_CTX *);
-int ec_GF2m_precompute_mult(EC_GROUP *group, BN_CTX *ctx);
-int ec_GF2m_have_precompute_mult(const EC_GROUP *group);
-
#ifndef OPENSSL_NO_EC_NISTP_64_GCC_128
/* method functions in ecp_nistp224.c */
int ec_GFp_nistp224_group_init(EC_GROUP *group);
diff --git a/openssl/crypto/ec/ec_lib.c b/openssl/crypto/ec/ec_lib.c
index 6ffd9fc16..3ffa112cc 100644
--- a/openssl/crypto/ec/ec_lib.c
+++ b/openssl/crypto/ec/ec_lib.c
@@ -970,6 +970,13 @@ int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *point)
return group->meth->is_at_infinity(group, point);
}
+/*
+ * Check whether an EC_POINT is on the curve or not. Note that the return
+ * value for this function should NOT be treated as a boolean. Return values:
+ * 1: The point is on the curve
+ * 0: The point is not on the curve
+ * -1: An error occurred
+ */
int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point,
BN_CTX *ctx)
{
diff --git a/openssl/crypto/ec/eck_prn.c b/openssl/crypto/ec/eck_prn.c
index 515b26238..df9b37a75 100644
--- a/openssl/crypto/ec/eck_prn.c
+++ b/openssl/crypto/ec/eck_prn.c
@@ -346,12 +346,14 @@ static int print_bin(BIO *fp, const char *name, const unsigned char *buf,
if (buf == NULL)
return 1;
- if (off) {
+ if (off > 0) {
if (off > 128)
off = 128;
memset(str, ' ', off);
if (BIO_write(fp, str, off) <= 0)
return 0;
+ } else {
+ off = 0;
}
if (BIO_printf(fp, "%s", name) <= 0)
diff --git a/openssl/crypto/ec/ecp_nistz256.c b/openssl/crypto/ec/ecp_nistz256.c
index 2cd6599d8..ca44d0aae 100755
--- a/openssl/crypto/ec/ecp_nistz256.c
+++ b/openssl/crypto/ec/ecp_nistz256.c
@@ -222,6 +222,18 @@ static BN_ULONG is_one(const BN_ULONG a[P256_LIMBS])
return is_zero(res);
}
+static int ecp_nistz256_set_words(BIGNUM *a, BN_ULONG words[P256_LIMBS])
+ {
+ if (bn_wexpand(a, P256_LIMBS) == NULL) {
+ ECerr(EC_F_ECP_NISTZ256_SET_WORDS, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ memcpy(a->d, words, sizeof(BN_ULONG) * P256_LIMBS);
+ a->top = P256_LIMBS;
+ bn_correct_top(a);
+ return 1;
+}
+
#ifndef ECP_NISTZ256_REFERENCE_IMPLEMENTATION
void ecp_nistz256_point_double(P256_POINT *r, const P256_POINT *a);
void ecp_nistz256_point_add(P256_POINT *r,
@@ -557,13 +569,14 @@ static int ecp_nistz256_bignum_to_field_elem(BN_ULONG out[P256_LIMBS],
}
/* r = sum(scalar[i]*point[i]) */
-static void ecp_nistz256_windowed_mul(const EC_GROUP *group,
+static int ecp_nistz256_windowed_mul(const EC_GROUP *group,
P256_POINT *r,
const BIGNUM **scalar,
const EC_POINT **point,
int num, BN_CTX *ctx)
{
- int i, j;
+
+ int i, j, ret = 0;
unsigned int index;
unsigned char (*p_str)[33] = NULL;
const unsigned int window_size = 5;
@@ -589,6 +602,7 @@ static void ecp_nistz256_windowed_mul(const EC_GROUP *group,
for (i = 0; i < num; i++) {
P256_POINT *row = table[i];
+ /* This is an unusual input, we don't guarantee constant-timeness. */
if ((BN_num_bits(scalar[i]) > 256) || BN_is_negative(scalar[i])) {
BIGNUM *mod;
@@ -697,6 +711,7 @@ static void ecp_nistz256_windowed_mul(const EC_GROUP *group,
ecp_nistz256_point_add(r, r, &h);
}
+ ret = 1;
err:
if (table_storage)
OPENSSL_free(table_storage);
@@ -704,6 +719,7 @@ static void ecp_nistz256_windowed_mul(const EC_GROUP *group,
OPENSSL_free(p_str);
if (scalars)
OPENSSL_free(scalars);
+ return ret;
}
/* Coordinates of G, for which we have precomputed tables */
@@ -742,6 +758,7 @@ static int ecp_nistz256_mult_precompute(EC_GROUP *group, BN_CTX *ctx)
EC_POINT *P = NULL, *T = NULL;
const EC_POINT *generator;
EC_PRE_COMP *pre_comp;
+ BN_CTX *new_ctx = NULL;
int i, j, k, ret = 0;
size_t w;
@@ -771,7 +788,7 @@ static int ecp_nistz256_mult_precompute(EC_GROUP *group, BN_CTX *ctx)
return 0;
if (ctx == NULL) {
- ctx = BN_CTX_new();
+ ctx = new_ctx = BN_CTX_new();
if (ctx == NULL)
goto err;
}
@@ -802,30 +819,41 @@ static int ecp_nistz256_mult_precompute(EC_GROUP *group, BN_CTX *ctx)
P = EC_POINT_new(group);
T = EC_POINT_new(group);
+ if (P == NULL || T == NULL)
+ goto err;
/*
* The zero entry is implicitly infinity, and we skip it, storing other
* values with -1 offset.
*/
- EC_POINT_copy(T, generator);
+ if (!EC_POINT_copy(T, generator))
+ goto err;
for (k = 0; k < 64; k++) {
- EC_POINT_copy(P, T);
+ if (!EC_POINT_copy(P, T))
+ goto err;
for (j = 0; j < 37; j++) {
/*
- * It would be faster to use
- * ec_GFp_simple_points_make_affine and make multiple
- * points affine at the same time.
+ * It would be faster to use EC_POINTs_make_affine and
+ * make multiple points affine at the same time.
*/
- ec_GFp_simple_make_affine(group, P, ctx);
- ecp_nistz256_bignum_to_field_elem(preComputedTable[j]
- [k].X, &P->X);
- ecp_nistz256_bignum_to_field_elem(preComputedTable[j]
- [k].Y, &P->Y);
- for (i = 0; i < 7; i++)
- ec_GFp_simple_dbl(group, P, P, ctx);
+ if (!EC_POINT_make_affine(group, P, ctx))
+ goto err;
+ if (!ecp_nistz256_bignum_to_field_elem(preComputedTable[j][k].X,
+ &P->X) ||
+ !ecp_nistz256_bignum_to_field_elem(preComputedTable[j][k].Y,
+ &P->Y)) {
+ ECerr(EC_F_ECP_NISTZ256_MULT_PRECOMPUTE,
+ EC_R_COORDINATES_OUT_OF_RANGE);
+ goto err;
+ }
+ for (i = 0; i < 7; i++) {
+ if (!EC_POINT_dbl(group, P, P, ctx))
+ goto err;
+ }
}
- ec_GFp_simple_add(group, T, T, generator, ctx);
+ if (!EC_POINT_add(group, T, T, generator, ctx))
+ goto err;
}
pre_comp->group = group;
@@ -849,6 +877,8 @@ static int ecp_nistz256_mult_precompute(EC_GROUP *group, BN_CTX *ctx)
err:
if (ctx != NULL)
BN_CTX_end(ctx);
+ BN_CTX_free(new_ctx);
+
if (pre_comp)
ecp_nistz256_pre_comp_free(pre_comp);
if (precomp_storage)
@@ -1102,6 +1132,9 @@ static int ecp_nistz256_points_mul(const EC_GROUP *group,
const EC_PRE_COMP *pre_comp = NULL;
const EC_POINT *generator = NULL;
unsigned int index = 0;
+ BN_CTX *new_ctx = NULL;
+ const BIGNUM **new_scalars = NULL;
+ const EC_POINT **new_points = NULL;
const unsigned int window_size = 7;
const unsigned int mask = (1 << (window_size + 1)) - 1;
unsigned int wvalue;
@@ -1115,6 +1148,7 @@ static int ecp_nistz256_points_mul(const EC_GROUP *group,
ECerr(EC_F_ECP_NISTZ256_POINTS_MUL, EC_R_INCOMPATIBLE_OBJECTS);
return 0;
}
+
if ((scalar == NULL) && (num == 0))
return EC_POINT_set_to_infinity(group, r);
@@ -1125,13 +1159,13 @@ static int ecp_nistz256_points_mul(const EC_GROUP *group,
}
}
- /* Need 256 bits for space for all coordinates. */
- bn_wexpand(&r->X, P256_LIMBS);
- bn_wexpand(&r->Y, P256_LIMBS);
- bn_wexpand(&r->Z, P256_LIMBS);
- r->X.top = P256_LIMBS;
- r->Y.top = P256_LIMBS;
- r->Z.top = P256_LIMBS;
+ if (ctx == NULL) {
+ ctx = new_ctx = BN_CTX_new();
+ if (ctx == NULL)
+ goto err;
+ }
+
+ BN_CTX_start(ctx);
if (scalar) {
generator = EC_GROUP_get0_generator(group);
@@ -1156,8 +1190,10 @@ static int ecp_nistz256_points_mul(const EC_GROUP *group,
goto err;
if (!ecp_nistz256_set_from_affine
- (pre_comp_generator, group, pre_comp->precomp[0], ctx))
+ (pre_comp_generator, group, pre_comp->precomp[0], ctx)) {
+ EC_POINT_free(pre_comp_generator);
goto err;
+ }
if (0 == EC_POINT_cmp(group, generator, pre_comp_generator, ctx))
preComputedTable = (const PRECOMP256_ROW *)pre_comp->precomp;
@@ -1255,20 +1291,16 @@ static int ecp_nistz256_points_mul(const EC_GROUP *group,
* Without a precomputed table for the generator, it has to be
* handled like a normal point.
*/
- const BIGNUM **new_scalars;
- const EC_POINT **new_points;
-
new_scalars = OPENSSL_malloc((num + 1) * sizeof(BIGNUM *));
if (!new_scalars) {
ECerr(EC_F_ECP_NISTZ256_POINTS_MUL, ERR_R_MALLOC_FAILURE);
- return 0;
+ goto err;
}
new_points = OPENSSL_malloc((num + 1) * sizeof(EC_POINT *));
if (!new_points) {
- OPENSSL_free(new_scalars);
ECerr(EC_F_ECP_NISTZ256_POINTS_MUL, ERR_R_MALLOC_FAILURE);
- return 0;
+ goto err;
}
memcpy(new_scalars, scalars, num * sizeof(BIGNUM *));
@@ -1286,27 +1318,31 @@ static int ecp_nistz256_points_mul(const EC_GROUP *group,
if (p_is_infinity)
out = &p.p;
- ecp_nistz256_windowed_mul(group, out, scalars, points, num, ctx);
+ if (!ecp_nistz256_windowed_mul(group, out, scalars, points, num, ctx))
+ goto err;
if (!p_is_infinity)
ecp_nistz256_point_add(&p.p, &p.p, out);
}
- if (no_precomp_for_generator) {
- OPENSSL_free(points);
- OPENSSL_free(scalars);
+ /* Not constant-time, but we're only operating on the public output. */
+ if (!ecp_nistz256_set_words(&r->X, p.p.X) ||
+ !ecp_nistz256_set_words(&r->Y, p.p.Y) ||
+ !ecp_nistz256_set_words(&r->Z, p.p.Z)) {
+ goto err;
}
-
- memcpy(r->X.d, p.p.X, sizeof(p.p.X));
- memcpy(r->Y.d, p.p.Y, sizeof(p.p.Y));
- memcpy(r->Z.d, p.p.Z, sizeof(p.p.Z));
- bn_correct_top(&r->X);
- bn_correct_top(&r->Y);
- bn_correct_top(&r->Z);
+ r->Z_is_one = is_one(p.p.Z) & 1;
ret = 1;
- err:
+err:
+ if (ctx)
+ BN_CTX_end(ctx);
+ BN_CTX_free(new_ctx);
+ if (new_points)
+ OPENSSL_free(new_points);
+ if (new_scalars)
+ OPENSSL_free(new_scalars);
return ret;
}
@@ -1319,6 +1355,7 @@ static int ecp_nistz256_get_affine(const EC_GROUP *group,
BN_ULONG x_aff[P256_LIMBS];
BN_ULONG y_aff[P256_LIMBS];
BN_ULONG point_x[P256_LIMBS], point_y[P256_LIMBS], point_z[P256_LIMBS];
+ BN_ULONG x_ret[P256_LIMBS], y_ret[P256_LIMBS];
if (EC_POINT_is_at_infinity(group, point)) {
ECerr(EC_F_ECP_NISTZ256_GET_AFFINE, EC_R_POINT_AT_INFINITY);
@@ -1337,19 +1374,17 @@ static int ecp_nistz256_get_affine(const EC_GROUP *group,
ecp_nistz256_mul_mont(x_aff, z_inv2, point_x);
if (x != NULL) {
- bn_wexpand(x, P256_LIMBS);
- x->top = P256_LIMBS;
- ecp_nistz256_from_mont(x->d, x_aff);
- bn_correct_top(x);
+ ecp_nistz256_from_mont(x_ret, x_aff);
+ if (!ecp_nistz256_set_words(x, x_ret))
+ return 0;
}
if (y != NULL) {
ecp_nistz256_mul_mont(z_inv3, z_inv3, z_inv2);
ecp_nistz256_mul_mont(y_aff, z_inv3, point_y);
- bn_wexpand(y, P256_LIMBS);
- y->top = P256_LIMBS;
- ecp_nistz256_from_mont(y->d, y_aff);
- bn_correct_top(y);
+ ecp_nistz256_from_mont(y_ret, y_aff);
+ if (!ecp_nistz256_set_words(y, y_ret))
+ return 0;
}
return 1;
diff --git a/openssl/crypto/ec/ecp_oct.c b/openssl/crypto/ec/ecp_oct.c
index e5cec8be8..1bc3f39ad 100644
--- a/openssl/crypto/ec/ecp_oct.c
+++ b/openssl/crypto/ec/ecp_oct.c
@@ -413,7 +413,7 @@ int ec_GFp_simple_oct2point(const EC_GROUP *group, EC_POINT *point,
}
/* test required by X9.62 */
- if (!EC_POINT_is_on_curve(group, point, ctx)) {
+ if (EC_POINT_is_on_curve(group, point, ctx) <= 0) {
ECerr(EC_F_EC_GFP_SIMPLE_OCT2POINT, EC_R_POINT_IS_NOT_ON_CURVE);
goto err;
}
diff --git a/openssl/crypto/ec/ectest.c b/openssl/crypto/ec/ectest.c
index a18b32761..fede530bc 100644
--- a/openssl/crypto/ec/ectest.c
+++ b/openssl/crypto/ec/ectest.c
@@ -412,7 +412,7 @@ static void prime_field_tests(void)
ABORT;
if (!EC_POINT_set_compressed_coordinates_GFp(group, Q, x, 1, ctx))
ABORT;
- if (!EC_POINT_is_on_curve(group, Q, ctx)) {
+ if (EC_POINT_is_on_curve(group, Q, ctx) <= 0) {
if (!EC_POINT_get_affine_coordinates_GFp(group, Q, x, y, ctx))
ABORT;
fprintf(stderr, "Point is not on curve: x = 0x");
@@ -544,7 +544,7 @@ static void prime_field_tests(void)
ABORT;
if (!EC_POINT_set_affine_coordinates_GFp(group, P, x, y, ctx))
ABORT;
- if (!EC_POINT_is_on_curve(group, P, ctx))
+ if (EC_POINT_is_on_curve(group, P, ctx) <= 0)
ABORT;
if (!BN_hex2bn(&z, "0100000000000000000001F4C8F927AED3CA752257"))
ABORT;
@@ -593,7 +593,7 @@ static void prime_field_tests(void)
ABORT;
if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 1, ctx))
ABORT;
- if (!EC_POINT_is_on_curve(group, P, ctx))
+ if (EC_POINT_is_on_curve(group, P, ctx) <= 0)
ABORT;
if (!BN_hex2bn(&z, "FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22831"))
ABORT;
@@ -646,7 +646,7 @@ static void prime_field_tests(void)
ABORT;
if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 0, ctx))
ABORT;
- if (!EC_POINT_is_on_curve(group, P, ctx))
+ if (EC_POINT_is_on_curve(group, P, ctx) <= 0)
ABORT;
if (!BN_hex2bn
(&z, "FFFFFFFFFFFFFFFFFFFFFFFFFFFF16A2E0B8F03E13DD29455C5C2A3D"))
@@ -705,7 +705,7 @@ static void prime_field_tests(void)
ABORT;
if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 1, ctx))
ABORT;
- if (!EC_POINT_is_on_curve(group, P, ctx))
+ if (EC_POINT_is_on_curve(group, P, ctx) <= 0)
ABORT;
if (!BN_hex2bn(&z, "FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E"
"84F3B9CAC2FC632551"))
@@ -761,7 +761,7 @@ static void prime_field_tests(void)
ABORT;
if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 1, ctx))
ABORT;
- if (!EC_POINT_is_on_curve(group, P, ctx))
+ if (EC_POINT_is_on_curve(group, P, ctx) <= 0)
ABORT;
if (!BN_hex2bn(&z, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
"FFC7634D81F4372DDF581A0DB248B0A77AECEC196ACCC52973"))
@@ -820,7 +820,7 @@ static void prime_field_tests(void)
ABORT;
if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 0, ctx))
ABORT;
- if (!EC_POINT_is_on_curve(group, P, ctx))
+ if (EC_POINT_is_on_curve(group, P, ctx) <= 0)
ABORT;
if (!BN_hex2bn(&z, "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
"FFFFFFFFFFFFFFFFFFFFA51868783BF2F966B7FCC0148F709A5D03BB5"
@@ -864,7 +864,7 @@ static void prime_field_tests(void)
ABORT;
if (!EC_POINT_dbl(group, P, P, ctx))
ABORT;
- if (!EC_POINT_is_on_curve(group, P, ctx))
+ if (EC_POINT_is_on_curve(group, P, ctx) <= 0)
ABORT;
if (!EC_POINT_invert(group, Q, ctx))
ABORT; /* P = -2Q */
@@ -1008,7 +1008,7 @@ static void prime_field_tests(void)
# define CHAR2_CURVE_TEST_INTERNAL(_name, _p, _a, _b, _x, _y, _y_bit, _order, _cof, _degree, _variable) \
if (!BN_hex2bn(&x, _x)) ABORT; \
if (!EC_POINT_set_compressed_coordinates_GF2m(group, P, x, _y_bit, ctx)) ABORT; \
- if (!EC_POINT_is_on_curve(group, P, ctx)) ABORT; \
+ if (EC_POINT_is_on_curve(group, P, ctx) <= 0) ABORT; \
if (!BN_hex2bn(&z, _order)) ABORT; \
if (!BN_hex2bn(&cof, _cof)) ABORT; \
if (!EC_GROUP_set_generator(group, P, z, cof)) ABORT; \
@@ -1026,7 +1026,7 @@ static void prime_field_tests(void)
if (!BN_hex2bn(&x, _x)) ABORT; \
if (!BN_hex2bn(&y, _y)) ABORT; \
if (!EC_POINT_set_affine_coordinates_GF2m(group, P, x, y, ctx)) ABORT; \
- if (!EC_POINT_is_on_curve(group, P, ctx)) ABORT; \
+ if (EC_POINT_is_on_curve(group, P, ctx) <= 0) ABORT; \
if (!BN_hex2bn(&z, _order)) ABORT; \
if (!BN_hex2bn(&cof, _cof)) ABORT; \
if (!EC_GROUP_set_generator(group, P, z, cof)) ABORT; \
@@ -1157,7 +1157,7 @@ static void char2_field_tests(void)
if (!EC_POINT_set_affine_coordinates_GF2m(group, Q, x, y, ctx))
ABORT;
# endif
- if (!EC_POINT_is_on_curve(group, Q, ctx)) {
+ if (EC_POINT_is_on_curve(group, Q, ctx) <= 0) {
/* Change test based on whether binary point compression is enabled or not. */
# ifdef OPENSSL_EC_BIN_PT_COMP
if (!EC_POINT_get_affine_coordinates_GF2m(group, Q, x, y, ctx))
@@ -1378,7 +1378,7 @@ static void char2_field_tests(void)
ABORT;
if (!EC_POINT_dbl(group, P, P, ctx))
ABORT;
- if (!EC_POINT_is_on_curve(group, P, ctx))
+ if (EC_POINT_is_on_curve(group, P, ctx) <= 0)
ABORT;
if (!EC_POINT_invert(group, Q, ctx))
ABORT; /* P = -2Q */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 23:27:22 +0000