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Dmitry Baryshkov
nettle
Commits
472444cf
Commit
472444cf
authored
Jul 23, 2014
by
Niels Möller
Browse files
New curve25519 test case.
parent
72ce18a9
Changes
4
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ChangeLog
View file @
472444cf
2014-07-23 Niels Möller <nisse@lysator.liu.se>
* testsuite/curve25519-dh-test.c: New test case, based on
draft-josefsson-tls-curve25519-05 test vectors.
* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Added curve25519-dh-test.c.
2014-07-18 Niels Möller <nisse@lysator.liu.se>
* ecc-mul-g-eh.c (ecc_mul_g_eh, ecc_mul_g_eh_itch): New file and
...
...
testsuite/.test-rules.make
View file @
472444cf
...
...
@@ -193,6 +193,9 @@ curve25519-dup-test$(EXEEXT): curve25519-dup-test.$(OBJEXT)
curve25519-add-test$(EXEEXT)
:
curve25519-add-test.$(OBJEXT)
$(LINK)
curve25519-add-test.
$(OBJEXT)
$(TEST_OBJS)
-o
curve25519-add-test
$(EXEEXT)
curve25519-dh-test$(EXEEXT)
:
curve25519-dh-test.$(OBJEXT)
$(LINK)
curve25519-dh-test.
$(OBJEXT)
$(TEST_OBJS)
-o
curve25519-dh-test
$(EXEEXT)
ecc-mod-test$(EXEEXT)
:
ecc-mod-test.$(OBJEXT)
$(LINK)
ecc-mod-test.
$(OBJEXT)
$(TEST_OBJS)
-o
ecc-mod-test
$(EXEEXT)
...
...
testsuite/Makefile.in
View file @
472444cf
...
...
@@ -39,6 +39,7 @@ TS_HOGWEED_SOURCES = sexp-test.c sexp-format-test.c \
rsa-test.c rsa-encrypt-test.c rsa-keygen-test.c
\
dsa-test.c dsa-keygen-test.c
\
curve25519-dup-test.c curve25519-add-test.c
\
curve25519-dh-test.c
\
ecc-mod-test.c ecc-modinv-test.c ecc-redc-test.c
\
ecc-mul-g-test.c ecc-mul-a-test.c
\
ecdsa-sign-test.c ecdsa-verify-test.c ecdsa-keygen-test.c
...
...
testsuite/curve25519-dh-test.c
0 → 100644
View file @
472444cf
/* curve25519-dh-test.c
Copyright (C) 2014 Niels Möller
This file is part of GNU Nettle.
GNU Nettle is free software: you can redistribute it and/or
modify it under the terms of either:
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at your
option) any later version.
or
* 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.
or both in parallel, as here.
GNU Nettle is distributed in the hope that it will be useful,
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 copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see http://www.gnu.org/licenses/.
*/
#include
"testutils.h"
/* Computes the x coordinate of s G, where g is a scalar, and G is the
base point on the curve. If x is non-NULL, it gives the X
coordinate of the point G, otherwise, G is the specified
generator. */
static
void
curve_25519
(
const
struct
ecc_curve
*
ecc
,
mp_limb_t
*
r
,
const
mp_limb_t
*
s
,
const
mp_limb_t
*
x
)
{
mp_limb_t
*
p
;
mp_limb_t
*
scratch
;
mp_size_t
itch
;
if
(
x
)
die
(
"Not yet implemented.
\n
"
);
itch
=
ECC_MUL_G_EH_ITCH
(
ecc
->
size
);
p
=
gmp_alloc_limbs
(
3
*
ecc
->
size
);
scratch
=
gmp_alloc_limbs
(
itch
);
ecc_mul_g_eh
(
ecc
,
p
,
s
,
scratch
);
ecc_eh_to_a
(
ecc
,
2
,
r
,
p
,
scratch
);
/* FIXME: Convert to little-endian here? */
gmp_free_limbs
(
p
,
3
*
ecc
->
size
);
gmp_free_limbs
(
scratch
,
itch
);
}
static
void
test_g
(
const
char
*
sz
,
const
char
*
pz
)
{
mpz_t
S
,
R
,
X
;
const
struct
ecc_curve
*
ecc
=
&
nettle_curve25519
;
mpz_init
(
S
);
mpz_init
(
R
);
mpz_init
(
X
);
mpz_set_str
(
S
,
sz
,
16
);
mpz_set_str
(
R
,
pz
,
16
);
ASSERT
(
mpz_size
(
S
)
==
ecc
->
size
);
curve_25519
(
ecc
,
mpz_limbs_write
(
X
,
ecc
->
size
),
mpz_limbs_read
(
S
),
NULL
);
mpz_limbs_finish
(
X
,
ecc
->
size
);
if
(
mpz_cmp
(
X
,
R
)
!=
0
)
{
fprintf
(
stderr
,
"curve25519 failure:
\n
s = "
);
mpz_out_str
(
stderr
,
16
,
S
);
fprintf
(
stderr
,
"
\n
X = "
);
mpz_out_str
(
stderr
,
16
,
X
);
fprintf
(
stderr
,
" (bad)
\n
R = "
);
mpz_out_str
(
stderr
,
16
,
R
);
fprintf
(
stderr
,
" (expected)
\n
"
);
abort
();
}
mpz_clear
(
S
);
mpz_clear
(
R
);
mpz_clear
(
X
);
}
void
test_main
(
void
)
{
/* From draft-josefsson-tls-curve25519-05. Different endianness for
the P values, though. */
test_g
(
"6A2CB91DA5FB77B12A99C0EB872F4CDF"
"4566B25172C1163C7DA518730A6D0770"
,
"6A4E9BAA8EA9A4EBF41A38260D3ABF0D"
"5AF73EB4DC7D8B7454A7308909F02085"
);
test_g
(
"6BE088FF278B2F1CFDB6182629B13B6F"
"E60E80838B7FE1794B8A4A627E08AB58"
,
"4F2B886F147EFCAD4D67785BC843833F"
"3735E4ECC2615BD3B4C17D7B7DDB9EDE"
);
}
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