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test(crypto): Test DER encoding.

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Andrew Kozlik 2023-11-24 16:25:18 +01:00 committed by Andrew Kozlik
parent d670a0bdfa
commit f4b1b8a76a
1 changed files with 90 additions and 0 deletions
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90
crypto/tests/test_check.c
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@ -50,9 +50,11 @@
#include "blake256.h"
#include "blake2b.h"
#include "blake2s.h"
#include "buffer.h"
#include "cardano.h"
#include "chacha_drbg.h"
#include "curves.h"
#include "der.h"
#include "ecdsa.h"
#include "ecdsa_internal.h"
#include "ed25519-donna/ed25519-donna.h"
@ -10025,6 +10027,89 @@ START_TEST(test_hash_to_curve_optiga) {
}
END_TEST
START_TEST(test_der_length) {
static struct {
const char *der;
const size_t len;
} tests[] = {
{"00", 0},
{"01", 1},
{"7f", 127},
{"8180", 128},
{"81ff", 255},
{"820100", 256},
{"82ffff", 65535},
{"83010000", 65536},
{"83ffffff", 16777215},
{"8401000000", 16777216},
{"8489abcdef", 2309737967},
};
for (size_t i = 0; i < sizeof(tests) / sizeof(*tests); i++) {
uint8_t input[5] = {0};
uint8_t output[5] = {0};
size_t length = 0;
size_t input_size = strlen(tests[i].der) / 2;
memcpy(input, fromhex(tests[i].der), input_size);
// Test der_read_length().
BUFFER_READER reader = {0};
buffer_reader_init(&reader, input, input_size);
int res = der_read_length(&reader, &length);
ck_assert_int_eq(res, true);
ck_assert_uint_eq(length, tests[i].len);
// Test der_write_length().
BUFFER_WRITER writer = {0};
buffer_writer_init(&writer, output, sizeof(output));
res = der_write_length(&writer, length);
ck_assert_int_eq(res, true);
ck_assert_uint_eq(buffer_written_size(&writer), input_size);
ck_assert_mem_eq(output, input, input_size);
}
}
END_TEST
START_TEST(test_der_reencode_int) {
static struct {
const char *input;
const char *output;
} tests[] = {
{"020f000000000000007f01020304050607", "02087f01020304050607"},
{"020f000000000000008001020304050607", "0209008001020304050607"},
{"02207f0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f",
"02207f0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"},
{"0220800102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f",
"022100800102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1"
"f"},
{"0220007f0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e",
"021f7f0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e"},
{"022000800102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e",
"022000800102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e"},
};
for (size_t i = 0; i < sizeof(tests) / sizeof(*tests); i++) {
uint8_t input[35] = {0};
size_t input_size = strlen(tests[i].input) / 2;
memcpy(input, fromhex(tests[i].input), input_size);
BUFFER_READER reader = {0};
buffer_reader_init(&reader, input, input_size);
uint8_t expected_output[35] = {0};
size_t expected_output_size = strlen(tests[i].output) / 2;
memcpy(expected_output, fromhex(tests[i].output), expected_output_size);
uint8_t output[35] = {0};
BUFFER_WRITER writer = {0};
buffer_writer_init(&writer, output, sizeof(output));
// Test der_reencode_int().
int res = der_reencode_int(&reader, &writer);
ck_assert_int_eq(res, true);
ck_assert_uint_eq(buffer_written_size(&writer), expected_output_size);
ck_assert_mem_eq(output, expected_output, expected_output_size);
}
}
END_TEST
static int my_strncasecmp(const char *s1, const char *s2, size_t n) {
size_t i = 0;
while (i < n) {
@ -10353,6 +10438,11 @@ Suite *test_suite(void) {
tcase_add_test(tc, test_hash_to_curve_optiga);
suite_add_tcase(s, tc);
tc = tcase_create("der");
tcase_add_test(tc, test_der_length);
tcase_add_test(tc, test_der_reencode_int);
suite_add_tcase(s, tc);
#if USE_CARDANO
tc = tcase_create("bip32-cardano");