Crash_Override/OVMS3-idf
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity
OVMS3-idf/components/wpa_supplicant/test/test_crypto.c
kapil.gupta ab784bb53a wpa_supplicant: Port dpp feature from supplicant 
Add files required for DPP feature from upstream.
These file expose the functionality to create DPP packets.
Ported crypto layer from openssl to mbedtls.

Interfacing to use these API will be added in seperate commit
2020-04-14 18:53:35 +05:30

546 lines
17 KiB
C
Raw Blame History

// Copyright 2015-2018 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <stdio.h>
#include <ctype.h>
#include <errno.h>
#include <stdlib.h>
#include <time.h>
#include "unity.h"
#include <string.h>
#include "crypto/crypto.h"
#include "mbedtls/ecp.h"
typedef struct crypto_bignum crypto_bignum;
TEST_CASE("Test crypto lib bignum apis", "[wpa_crypto]")
{
{
uint8_t buf[32], buf2[32];
/* BN - Init & Deinit*/
crypto_bignum *bn = crypto_bignum_init();
crypto_bignum_deinit(bn, 1);
/* BN - Binary to bignum & bignum to binary*/
TEST_ASSERT(!os_get_random(buf, 32));
bn = crypto_bignum_init_set(buf, 32);
TEST_ASSERT_NOT_NULL(bn);
TEST_ASSERT(crypto_bignum_to_bin(bn, buf2, 32, 0) == 32);
TEST_ASSERT(!memcmp(buf, buf2, 32));
crypto_bignum_deinit(bn, 1);
}
{ /** BN summation*/
uint8_t buf1[32], buf2[32], buf3[32], buf4[32];
crypto_bignum *bn1, *bn2, *sum;
uint8_t count;
sum = crypto_bignum_init();
for (count = 0; count < 32; count++) {
buf1[count] = 0x11;
buf2[count] = 0x22;
buf3[count] = 0x33; //expected result
buf4[count] = 0x0; //Calculated result
}
bn1 = crypto_bignum_init_set(buf1, 32);
TEST_ASSERT_NOT_NULL(bn1);
bn2 = crypto_bignum_init_set(buf2, 32);
TEST_ASSERT_NOT_NULL(bn2);
TEST_ASSERT(crypto_bignum_add(bn1, bn2, sum) == 0);
TEST_ASSERT(crypto_bignum_to_bin(sum, buf4, 32, 0) == 32);
TEST_ASSERT(!memcmp(buf3, buf4, 32));
crypto_bignum_deinit(bn1, 1);
crypto_bignum_deinit(bn2, 1);
crypto_bignum_deinit(sum, 1);
}
{ /** BN mod*/
uint8_t buf1[32], buf2[32], buf3[32], buf4[32];
crypto_bignum *bn1, *bn2, *mod;
uint8_t count;
mod = crypto_bignum_init();
for (count = 0; count < 32; count++) {
buf1[count] = 0x33;
buf2[count] = 0x22;
buf3[count] = 0x11; //expected result
buf4[count] = 0x0; //Calculated result
}
bn1 = crypto_bignum_init_set(buf1, 32);
TEST_ASSERT_NOT_NULL(bn1);
bn2 = crypto_bignum_init_set(buf2, 32);
TEST_ASSERT_NOT_NULL(bn2);
TEST_ASSERT(crypto_bignum_mod(bn1, bn2, mod) == 0);
TEST_ASSERT(crypto_bignum_to_bin(mod, buf4, 32, 0) == 32);
TEST_ASSERT(!memcmp(buf3, buf4, 32));
crypto_bignum_deinit(bn1, 1);
crypto_bignum_deinit(bn2, 1);
crypto_bignum_deinit(mod, 1);
}
{ /** BN sub*/
uint8_t buf1[32], buf2[32], buf3[32], buf4[32];
crypto_bignum *bn1, *bn2, *sub;
uint8_t count;
sub = crypto_bignum_init();
for (count = 0; count < 32; count++) {
buf1[count] = 0x44;
buf2[count] = 0x11;
buf3[count] = 0x33; //expected result
buf4[count] = 0x0; //Calculated result
}
bn1 = crypto_bignum_init_set(buf1, 32);
TEST_ASSERT_NOT_NULL(bn1);
bn2 = crypto_bignum_init_set(buf2, 32);
TEST_ASSERT_NOT_NULL(bn2);
TEST_ASSERT(crypto_bignum_sub(bn1, bn2, sub) == 0);
TEST_ASSERT(crypto_bignum_to_bin(sub, buf4, 32, 0) == 32);
TEST_ASSERT(!memcmp(buf3, buf4, 32));
crypto_bignum_deinit(bn1, 1);
crypto_bignum_deinit(bn2, 1);
crypto_bignum_deinit(sub, 1);
}
{ /** BN div*/
uint8_t buf1[32], buf2[32], buf3[32], buf4[32];
crypto_bignum *bn1, *bn2, *div;
uint8_t count;
div = crypto_bignum_init();
for (count = 0; count < 32; count++) {
buf1[count] = 0x44;
buf2[count] = 0x22;
buf3[count] = count ? 0 : 0x2; //expected result
buf4[count] = 0x0; //Calculated result
}
bn1 = crypto_bignum_init_set(buf1, 32);
TEST_ASSERT_NOT_NULL(bn1);
bn2 = crypto_bignum_init_set(buf2, 32);
TEST_ASSERT_NOT_NULL(bn2);
TEST_ASSERT(crypto_bignum_div(bn1, bn2, div) == 0);
TEST_ASSERT(crypto_bignum_to_bin(div, buf4, 32, 0) == 1);
TEST_ASSERT(!memcmp(buf3, buf4, 1));
crypto_bignum_deinit(bn1, 1);
crypto_bignum_deinit(bn2, 1);
crypto_bignum_deinit(div, 1);
}
{ /** BN mul mod*/
uint8_t buf1[32], buf2[32], buf3[32], buf4[32], buf5[32];
crypto_bignum *bn1, *bn2, *bn3, *mulmod;
uint8_t count;
for (count = 0; count < 32; count++) {
buf1[count] = 0x22;
buf2[count] = 0x11;
buf3[count] = (count < 4) ? 0x21 : 0;
buf4[count] = (count < 4) ? 0x14 : 0;
buf5[count] = 0;
}
mulmod = crypto_bignum_init();
bn1 = crypto_bignum_init_set(buf1, 32);
TEST_ASSERT_NOT_NULL(bn1);
bn2 = crypto_bignum_init_set(buf2, 32);
TEST_ASSERT_NOT_NULL(bn2);
bn3 = crypto_bignum_init_set(buf3, 4);
TEST_ASSERT_NOT_NULL(bn3);
TEST_ASSERT(crypto_bignum_mulmod(bn1, bn2, bn3, mulmod) == 0);
TEST_ASSERT(crypto_bignum_to_bin(mulmod, buf5, 32, 0) == 4);
TEST_ASSERT(!memcmp(buf5, buf4, 4));
crypto_bignum_deinit(bn1, 1);
crypto_bignum_deinit(bn2, 1);
crypto_bignum_deinit(bn3, 1);
crypto_bignum_deinit(mulmod, 1);
}
{ /** BN exp mod*/
uint8_t buf1[32], buf2[32], buf3[32], buf4[32], buf5[32];
crypto_bignum *bn1, *bn2, *bn3, *expmod;
uint8_t count;
expmod = crypto_bignum_init();
for (count = 0; count < 32; count++) {
buf1[count] = 0x22;
buf2[count] = (count >= 30) ? 0x11 : 0;
buf3[count] = (count >= 31) ? 0xE9 : 0;
buf4[count] = count ? 0 : 0x62;
buf5[count] = 0;
}
bn1 = crypto_bignum_init_set(buf1, 32);
TEST_ASSERT_NOT_NULL(bn1);
bn2 = crypto_bignum_init_set(buf2, 32);
TEST_ASSERT_NOT_NULL(bn2);
bn3 = crypto_bignum_init_set(buf3, 32);
TEST_ASSERT_NOT_NULL(bn3);
TEST_ASSERT(crypto_bignum_exptmod(bn1, bn2, bn3, expmod) == 0);
TEST_ASSERT(crypto_bignum_to_bin(expmod, buf5, 32, 0) == 1);
TEST_ASSERT(!memcmp(buf5, buf4, 1));
crypto_bignum_deinit(bn1, 1);
crypto_bignum_deinit(bn2, 1);
crypto_bignum_deinit(bn3, 1);
crypto_bignum_deinit(expmod, 1);
}
{ /** BN Legendre symbol test*/
uint8_t buf1[32], buf2[32];
crypto_bignum *bn1, *bn2;
buf1[0] = 0xf;
buf2[0] = 0x11;
bn1 = crypto_bignum_init_set(buf1, 1);
TEST_ASSERT_NOT_NULL(bn1);
bn2 = crypto_bignum_init_set(buf2, 1);
TEST_ASSERT_NOT_NULL(bn2);
TEST_ASSERT(crypto_bignum_legendre(bn1, bn2) == 1);
crypto_bignum_deinit(bn1, 1);
buf1[0] = 0xa;
bn1 = crypto_bignum_init_set(buf1, 1);
TEST_ASSERT_NOT_NULL(bn1);
TEST_ASSERT(crypto_bignum_legendre(bn1, bn2) == -1);
crypto_bignum_deinit(bn1, 1);
buf1[0] = 0x11;
bn1 = crypto_bignum_init_set(buf1, 1);
TEST_ASSERT_NOT_NULL(bn1);
TEST_ASSERT(crypto_bignum_legendre(bn1, bn2) == 0);
crypto_bignum_deinit(bn1, 1);
crypto_bignum_deinit(bn2, 1);
}
}
/*
* Conversion macros for embedded constants:
* build lists of mbedtls_mpi_uint's from lists of unsigned char's grouped by 8, 4 or 2
*/
#if defined(MBEDTLS_HAVE_INT32)
#define BYTES_TO_T_UINT_4( a, b, c, d ) \
( (mbedtls_mpi_uint) a << 0 ) | \
( (mbedtls_mpi_uint) b << 8 ) | \
( (mbedtls_mpi_uint) c << 16 ) | \
( (mbedtls_mpi_uint) d << 24 )
#define BYTES_TO_T_UINT_2( a, b ) \
BYTES_TO_T_UINT_4( a, b, 0, 0 )
#define BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \
BYTES_TO_T_UINT_4( a, b, c, d ), \
BYTES_TO_T_UINT_4( e, f, g, h )
#else /* 64-bits */
#define BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \
( (mbedtls_mpi_uint) a << 0 ) | \
( (mbedtls_mpi_uint) b << 8 ) | \
( (mbedtls_mpi_uint) c << 16 ) | \
( (mbedtls_mpi_uint) d << 24 ) | \
( (mbedtls_mpi_uint) e << 32 ) | \
( (mbedtls_mpi_uint) f << 40 ) | \
( (mbedtls_mpi_uint) g << 48 ) | \
( (mbedtls_mpi_uint) h << 56 )
#define BYTES_TO_T_UINT_4( a, b, c, d ) \
BYTES_TO_T_UINT_8( a, b, c, d, 0, 0, 0, 0 )
#define BYTES_TO_T_UINT_2( a, b ) \
BYTES_TO_T_UINT_8( a, b, 0, 0, 0, 0, 0, 0 )
#endif /* bits in mbedtls_mpi_uint */
/*
* Create an MPI from embedded constants
* (assumes len is an exact multiple of sizeof mbedtls_mpi_uint)
* Allocate a new memory as well so that it can be freed.
*/
static inline void ecp_mpi_load( mbedtls_mpi *X, const mbedtls_mpi_uint *p, size_t len )
{
X->s = 1;
X->n = len / sizeof( mbedtls_mpi_uint );
X->p = os_zalloc(len);
memcpy(X->p, (void *)p, len);
}
TEST_CASE("Test crypto lib ECC apis", "[wpa_crypto]")
{
static const mbedtls_mpi_uint secp256r1_gx[] = {
BYTES_TO_T_UINT_8( 0x96, 0xC2, 0x98, 0xD8, 0x45, 0x39, 0xA1, 0xF4 ),
BYTES_TO_T_UINT_8( 0xA0, 0x33, 0xEB, 0x2D, 0x81, 0x7D, 0x03, 0x77 ),
BYTES_TO_T_UINT_8( 0xF2, 0x40, 0xA4, 0x63, 0xE5, 0xE6, 0xBC, 0xF8 ),
BYTES_TO_T_UINT_8( 0x47, 0x42, 0x2C, 0xE1, 0xF2, 0xD1, 0x17, 0x6B ),
};
static const mbedtls_mpi_uint secp256r1_gy[] = {
BYTES_TO_T_UINT_8( 0xF5, 0x51, 0xBF, 0x37, 0x68, 0x40, 0xB6, 0xCB ),
BYTES_TO_T_UINT_8( 0xCE, 0x5E, 0x31, 0x6B, 0x57, 0x33, 0xCE, 0x2B ),
BYTES_TO_T_UINT_8( 0x16, 0x9E, 0x0F, 0x7C, 0x4A, 0xEB, 0xE7, 0x8E ),
BYTES_TO_T_UINT_8( 0x9B, 0x7F, 0x1A, 0xFE, 0xE2, 0x42, 0xE3, 0x4F ),
};
{
/* Check init and deinit APIs*/
struct crypto_ec *e = crypto_ec_init(19);
struct crypto_ec_point *pt = crypto_ec_point_init(e);
crypto_ec_point_deinit(pt, 1);
crypto_ec_deinit(e);
}
{
uint8_t pt1[64], pt2[64];
struct crypto_ec *e = crypto_ec_init(19);
struct crypto_ec_point *p;
TEST_ASSERT_NOT_NULL(e);
/* Note this is just testing coversion & not whether point is
* in the group or not*/
TEST_ASSERT(!os_get_random(pt1, 64));
p = crypto_ec_point_from_bin(e, pt1);
TEST_ASSERT(crypto_ec_prime_len(e) == 32);
TEST_ASSERT(crypto_ec_point_to_bin(e, p, pt2, &pt2[32]) == 0);
TEST_ASSERT(!memcmp(pt1, pt2, sizeof(pt1)));
crypto_ec_point_deinit(p, 1);
crypto_ec_deinit(e);
}
{
/* Check addition and multiplication APIs
* yield the same answer.
*/
struct crypto_ec *e = crypto_ec_init(19);
struct crypto_ec_point *p = crypto_ec_point_init(e);
struct crypto_ec_point *q = crypto_ec_point_init(e);
struct crypto_ec_point *r = crypto_ec_point_init(e);
mbedtls_mpi num;
TEST_ASSERT_NOT_NULL(e);
TEST_ASSERT_NOT_NULL(p);
TEST_ASSERT_NOT_NULL(q);
TEST_ASSERT_NOT_NULL(r);
mbedtls_mpi_init( &num );
mbedtls_mpi_lset( &num, 3 );
ecp_mpi_load(& ((mbedtls_ecp_point *)p)->X, secp256r1_gx, sizeof(secp256r1_gx));
ecp_mpi_load(& ((mbedtls_ecp_point *)p)->Y, secp256r1_gy, sizeof(secp256r1_gy));
mbedtls_mpi_lset((&((mbedtls_ecp_point *)p)->Z), 1);
TEST_ASSERT(crypto_ec_point_mul(e, p, (crypto_bignum *) &num, q) == 0); //q = 3p
TEST_ASSERT(crypto_ec_point_add(e, p, p, r) == 0);
TEST_ASSERT(crypto_ec_point_add(e, p, r, r) == 0);
TEST_ASSERT(crypto_ec_point_cmp(e, q, r) == 0);
mbedtls_mpi_free( &num );
crypto_ec_point_deinit(p, 1);
crypto_ec_point_deinit(q, 1);
crypto_ec_point_deinit(r, 1);
crypto_ec_deinit(e);
}
{
/* Generate a point using generator and take its inverse
* Check that adding point to inverse yields identity
*/
struct crypto_ec *e = crypto_ec_init(19);
struct crypto_ec_point *p = crypto_ec_point_init(e);
struct crypto_ec_point *q = crypto_ec_point_init(e);
struct crypto_ec_point *r = crypto_ec_point_init(e);
mbedtls_mpi num;
TEST_ASSERT_NOT_NULL(e);
TEST_ASSERT_NOT_NULL(p);
TEST_ASSERT_NOT_NULL(q);
TEST_ASSERT_NOT_NULL(r);
mbedtls_mpi_init( &num );
mbedtls_mpi_lset( &num, 100 );
ecp_mpi_load(& ((mbedtls_ecp_point *)p)->X, secp256r1_gx, sizeof(secp256r1_gx));
ecp_mpi_load(& ((mbedtls_ecp_point *)p)->Y, secp256r1_gy, sizeof(secp256r1_gy));
mbedtls_mpi_lset((&((mbedtls_ecp_point *)p)->Z), 1);
TEST_ASSERT(crypto_ec_point_mul(e, p, (crypto_bignum *) &num, q) == 0);
TEST_ASSERT(crypto_ec_point_mul(e, p, (crypto_bignum *) &num, r) == 0);
TEST_ASSERT(crypto_ec_point_invert(e, r) == 0);
TEST_ASSERT(crypto_ec_point_add(e, q, r, r) == 0);
TEST_ASSERT(crypto_ec_point_is_at_infinity(e, r));
mbedtls_mpi_free( &num );
crypto_ec_point_deinit(p, 1);
crypto_ec_point_deinit(q, 1);
crypto_ec_point_deinit(r, 1);
crypto_ec_deinit(e);
}
{
/* Check y_sqr calculations and other dependent APIs */
struct crypto_ec *e = crypto_ec_init(19);
struct crypto_ec_point *p = crypto_ec_point_init(e);
struct crypto_ec_point *q = crypto_ec_point_init(e);
mbedtls_mpi num;
TEST_ASSERT_NOT_NULL(e);
TEST_ASSERT_NOT_NULL(p);
TEST_ASSERT_NOT_NULL(q);
mbedtls_mpi_init( &num );
mbedtls_mpi_lset( &num, 50 );
ecp_mpi_load(& ((mbedtls_ecp_point *)p)->X, secp256r1_gx, sizeof(secp256r1_gx));
ecp_mpi_load(& ((mbedtls_ecp_point *)p)->Y, secp256r1_gy, sizeof(secp256r1_gy));
mbedtls_mpi_lset((&((mbedtls_ecp_point *)p)->Z), 1);
/* Generator should always be on the curve*/
TEST_ASSERT(crypto_ec_point_is_on_curve(e, p));
/* Any point generated using generated should also be on the same curve*/
TEST_ASSERT(crypto_ec_point_mul(e, p, (crypto_bignum *) &num, q) == 0);
TEST_ASSERT(crypto_ec_point_is_on_curve(e, q));
mbedtls_mpi_free( &num );
crypto_ec_point_deinit(p, 1);
crypto_ec_point_deinit(q, 1);
crypto_ec_deinit(e);
}
{
/* crypto_ec_point_solve_y_coord APIs*/
struct crypto_ec *e = crypto_ec_init(19);
struct crypto_ec_point *p = crypto_ec_point_init(e);
struct crypto_ec_point *q = crypto_ec_point_init(e);
struct crypto_ec_point *r = crypto_ec_point_init(e);
mbedtls_mpi num;
TEST_ASSERT_NOT_NULL(e);
TEST_ASSERT_NOT_NULL(p);
TEST_ASSERT_NOT_NULL(q);
TEST_ASSERT_NOT_NULL(r);
mbedtls_mpi_init( &num );
mbedtls_mpi_lset( &num, 50 );
ecp_mpi_load(& ((mbedtls_ecp_point *)p)->X, secp256r1_gx, sizeof(secp256r1_gx));
ecp_mpi_load(& ((mbedtls_ecp_point *)p)->Y, secp256r1_gy, sizeof(secp256r1_gy));
mbedtls_mpi_lset((&((mbedtls_ecp_point *)p)->Z), 1);
mbedtls_mpi_copy(&((mbedtls_ecp_point *)q)->X, &((mbedtls_ecp_point *)p)->X);
mbedtls_mpi_copy(&((mbedtls_ecp_point *)r)->X, &((mbedtls_ecp_point *)p)->X);
mbedtls_mpi_lset((&((mbedtls_ecp_point *)q)->Z), 1);
mbedtls_mpi_lset((&((mbedtls_ecp_point *)r)->Z), 1);
TEST_ASSERT(crypto_ec_point_solve_y_coord(e, q, (crypto_bignum *) & ((mbedtls_ecp_point *)q)->X, 0) == 0);
TEST_ASSERT(crypto_ec_point_is_on_curve(e, q));
TEST_ASSERT(crypto_ec_point_solve_y_coord(e, r, (crypto_bignum *) & ((mbedtls_ecp_point *)q)->X, 1) == 0);
TEST_ASSERT(crypto_ec_point_is_on_curve(e, r));
TEST_ASSERT((crypto_ec_point_cmp(e, p, q) == 0) || (crypto_ec_point_cmp(e, p, r) == 0));
/* The two roots should be inverse of one another*/
TEST_ASSERT(crypto_ec_point_add(e, q, r, r) == 0);
TEST_ASSERT(crypto_ec_point_is_at_infinity(e, r));
mbedtls_mpi_free( &num );
crypto_ec_point_deinit(p, 1);
crypto_ec_point_deinit(q, 1);
crypto_ec_point_deinit(r, 1);
crypto_ec_deinit(e);
}
}
Reference in a new issue View git blame Copy permalink