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crypto/tests: Add unit tests for Shamir secret sharing.

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This commit is contained in:
Andrew Kozlik 2019-04-17 17:28:34 +02:00
parent 0d21bca288
commit 1b3c0e0243
2 changed files with 75 additions and 0 deletions
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1
crypto/Makefile
View File

@ -63,6 +63,7 @@ SRCS += rc4.c
SRCS += nem.c SRCS += nem.c
SRCS += segwit_addr.c cash_addr.c SRCS += segwit_addr.c cash_addr.c
SRCS += memzero.c SRCS += memzero.c
SRCS += shamir.c
OBJS = $(SRCS:.c=.o) OBJS = $(SRCS:.c=.o)

74
crypto/tests/test_check.c
View File

@ -65,6 +65,7 @@
#include "secp256k1.h" #include "secp256k1.h"
#include "sha2.h" #include "sha2.h"
#include "sha3.h" #include "sha3.h"
#include "shamir.h"
#if VALGRIND #if VALGRIND
/* /*
@ -5057,6 +5058,75 @@ START_TEST(test_mnemonic_to_entropy) {
} }
END_TEST END_TEST
START_TEST(test_shamir) {
#define SHAMIR_MAX_COUNT 16
static const struct {
const uint8_t result[SHAMIR_MAX_LEN];
uint8_t result_index;
const uint8_t share_indices[SHAMIR_MAX_COUNT];
const uint8_t share_values[SHAMIR_MAX_COUNT][SHAMIR_MAX_LEN];
uint8_t share_count;
size_t len;
} vectors[] = {{{7, 151, 168, 57, 186, 104, 218, 21, 209, 96, 106,
152, 252, 35, 210, 208, 43, 47, 13, 21, 142, 122,
24, 42, 149, 192, 95, 24, 240, 24, 148, 110},
0,
{2},
{
{7, 151, 168, 57, 186, 104, 218, 21, 209, 96, 106,
152, 252, 35, 210, 208, 43, 47, 13, 21, 142, 122,
24, 42, 149, 192, 95, 24, 240, 24, 148, 110},
},
1,
32},
{{53},
255,
{14, 10, 1, 13, 8, 7, 3, 11, 9, 4, 6, 0, 5, 12, 15, 2},
{
{114},
{41},
{116},
{67},
{198},
{109},
{232},
{39},
{90},
{241},
{156},
{75},
{46},
{181},
{144},
{175},
},
16,
1},
{{163, 120, 30, 243, 179, 172, 196, 137, 119, 17},
3,
{1, 0, 12},
{{80, 180, 198, 131, 111, 251, 45, 181, 2, 242},
{121, 9, 79, 98, 132, 164, 9, 165, 19, 230},
{86, 52, 173, 138, 189, 223, 122, 102, 248, 157}},
3,
10}};
for (size_t i = 0; i < (sizeof(vectors) / sizeof(*vectors)); ++i) {
uint8_t result[SHAMIR_MAX_LEN];
const uint8_t *share_values[SHAMIR_MAX_COUNT];
for (size_t j = 0; j < vectors[i].share_count; ++j) {
share_values[j] = vectors[i].share_values[j];
}
shamir_interpolate(result, vectors[i].result_index,
vectors[i].share_indices, share_values,
vectors[i].share_count, vectors[i].len);
ck_assert_mem_eq(result, vectors[i].result, vectors[i].len);
}
}
END_TEST
START_TEST(test_address) { START_TEST(test_address) {
char address[36]; char address[36];
uint8_t pub_key[65]; uint8_t pub_key[65];
@ -8481,6 +8551,10 @@ Suite *test_suite(void) {
tcase_add_test(tc, test_mnemonic_to_entropy); tcase_add_test(tc, test_mnemonic_to_entropy);
suite_add_tcase(s, tc); suite_add_tcase(s, tc);
tc = tcase_create("shamir");
tcase_add_test(tc, test_shamir);
suite_add_tcase(s, tc);
tc = tcase_create("pubkey_validity"); tc = tcase_create("pubkey_validity");
tcase_add_test(tc, test_pubkey_validity); tcase_add_test(tc, test_pubkey_validity);
suite_add_tcase(s, tc); suite_add_tcase(s, tc);