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https://github.com/trezor/trezor-firmware.git
synced 2024-12-23 23:08:14 +00:00
introduce ecdsa_address_to_hash160
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parent
7dc057c903
commit
2e4ec7fe0a
23
bignum.c
23
bignum.c
@ -154,6 +154,29 @@ void bn_mod(bignum256 *x, const bignum256 *prime)
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}
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}
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// a = a + b
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void bn_addi(bignum256 *a, uint32_t b)
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{
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uint64_t t = a->val[0];
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t += b;
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a->val[0] = t & 0x3FFFFFFFu;
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t >>= 30;
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a->val[1] += t;
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}
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// a = a * b
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void bn_muli(bignum256 *a, uint32_t b)
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{
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uint64_t t = 0;
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int i;
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for (i = 0; i < 8; i++) {
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t = (uint64_t)(a->val[i]) * b + t;
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a->val[i] = t & 0x3FFFFFFFu;
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t >>= 30;
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}
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a->val[8] += t;
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}
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// x = k * x
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// both inputs and result may be bigger than prime but not bigger than 2 * prime
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void bn_multiply(const bignum256 *k, bignum256 *x, const bignum256 *prime)
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4
bignum.h
4
bignum.h
@ -73,6 +73,10 @@ void bn_rshift(bignum256 *a);
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void bn_mod(bignum256 *x, const bignum256 *prime);
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void bn_addi(bignum256 *a, uint32_t b);
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void bn_muli(bignum256 *a, uint32_t b);
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void bn_multiply(const bignum256 *k, bignum256 *x, const bignum256 *prime);
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void bn_fast_mod(bignum256 *x, const bignum256 *prime);
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26
ecdsa.c
26
ecdsa.c
@ -342,6 +342,32 @@ void ecdsa_get_address(const uint8_t *pub_key, uint8_t version, char *addr)
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}
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}
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int ecdsa_address_to_hash160(const char *addr, uint8_t *hash)
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{
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if (!addr) return 0;
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const char code[] = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
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bignum256 num;
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uint8_t buf[32];
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bn_zero(&num);
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uint32_t k;
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int i;
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for (i = 0; i < strlen(addr); i++) {
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bn_muli(&num, 58);
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for (k = 0; k <= strlen(code); k++) {
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if (code[k] == 0) { // char not found -> invalid address
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return 0;
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}
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if (addr[i] == code[k]) {
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bn_addi(&num, k);
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break;
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}
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}
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}
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bn_write_be(&num, buf);
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memcpy(hash, buf + 8, 20);
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return 1;
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}
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int ecdsa_read_pubkey(const uint8_t *pub_key, curve_point *pub)
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{
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if (pub_key[0] == 0x04) {
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1
ecdsa.h
1
ecdsa.h
@ -40,6 +40,7 @@ int ecdsa_sign(const uint8_t *priv_key, const uint8_t *msg, uint32_t msg_len, ui
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void ecdsa_get_public_key33(const uint8_t *priv_key, uint8_t *pub_key);
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void ecdsa_get_public_key65(const uint8_t *priv_key, uint8_t *pub_key);
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void ecdsa_get_address(const uint8_t *pub_key, uint8_t version, char *addr);
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int ecdsa_address_to_hash160(const char *addr, uint8_t *hash);
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int ecdsa_read_pubkey(const uint8_t *pub_key, curve_point *pub);
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int ecdsa_verify(const uint8_t *pub_key, const uint8_t *sig, const uint8_t *msg, uint32_t msg_len);
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23
tests.c
23
tests.c
@ -491,6 +491,23 @@ START_TEST(test_address)
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}
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END_TEST
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START_TEST(test_address_to_hash)
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{
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uint8_t hash[20];
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ecdsa_address_to_hash160("1JwSSubhmg6iPtRjtyqhUYYH7bZg3Lfy1T", hash); ck_assert_mem_eq(hash, fromhex("c4c5d791fcb4654a1ef5e03fe0ad3d9c598f9827"), 20);
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ecdsa_address_to_hash160("myTPjxggahXyAzuMcYp5JTkbybANyLsYBW", hash); ck_assert_mem_eq(hash, fromhex("c4c5d791fcb4654a1ef5e03fe0ad3d9c598f9827"), 20);
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ecdsa_address_to_hash160("NEWoeZ6gh4CGvRgFAoAGh4hBqpxizGT6gZ", hash); ck_assert_mem_eq(hash, fromhex("c4c5d791fcb4654a1ef5e03fe0ad3d9c598f9827"), 20);
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ecdsa_address_to_hash160("LdAPi7uXrLLmeh7u57pzkZc3KovxEDYRJq", hash); ck_assert_mem_eq(hash, fromhex("c4c5d791fcb4654a1ef5e03fe0ad3d9c598f9827"), 20);
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ecdsa_address_to_hash160("1C7zdTfnkzmr13HfA2vNm5SJYRK6nEKyq8", hash); ck_assert_mem_eq(hash, fromhex("79fbfc3f34e7745860d76137da68f362380c606c"), 20);
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ecdsa_address_to_hash160("mrdwvWkma2D6n9mGsbtkazedQQuoksnqJV", hash); ck_assert_mem_eq(hash, fromhex("79fbfc3f34e7745860d76137da68f362380c606c"), 20);
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ecdsa_address_to_hash160("N7hMq7AmgNsQXaYARrEwybbDGei9mcPNqr", hash); ck_assert_mem_eq(hash, fromhex("79fbfc3f34e7745860d76137da68f362380c606c"), 20);
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ecdsa_address_to_hash160("LWLwtfycqf1uFqypLAug36W4kdgNwrZdNs", hash); ck_assert_mem_eq(hash, fromhex("79fbfc3f34e7745860d76137da68f362380c606c"), 20);
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}
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END_TEST
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// define test suite and cases
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Suite *test_suite(void)
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{
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@ -511,10 +528,14 @@ Suite *test_suite(void)
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tcase_add_test(tc, test_verify_speed);
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suite_add_tcase(s, tc);
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tc = tcase_create("addresses");
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tc = tcase_create("address");
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tcase_add_test(tc, test_address);
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suite_add_tcase(s, tc);
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tc = tcase_create("address_to_hash");
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tcase_add_test(tc, test_address_to_hash);
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suite_add_tcase(s, tc);
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tc = tcase_create("rijndael");
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tcase_add_test(tc, test_rijndael);
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suite_add_tcase(s, tc);
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