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Update SM9 key exchange

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This commit is contained in:
Zhi Guan
2026-06-24 14:46:51 +08:00
parent 1dce4f2dfa
commit e5d318d1a7
5 changed files with 286 additions and 6 deletions
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35
tests/sm9test.c
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@@ -1031,6 +1031,10 @@ int test_sm9_z256_exchange()
size_t klen = 0x10;
uint8_t skA[200];
uint8_t skB[200];
uint8_t skA_new[200];
uint8_t skB_new[200];
uint8_t SA[32];
uint8_t SB[32];
sm9_z256_from_hex(msk.ke, hex_kex);
sm9_z256_point_mul_generator(&(msk.Ppube), msk.ke);
if (sm9_exch_master_key_extract_key(&msk, (char *)idA, sizeof(idA), &keyA) < 0) goto err; ++j;
@@ -1051,6 +1055,37 @@ int test_sm9_z256_exchange()
}
} ++j;
if (sm9_key_exchange(1, &msk, &keyA, (char *)idA, sizeof(idA), (char *)idB, sizeof(idB),
rA, &RA, &RB, klen, skA_new) != 1
|| sm9_key_exchange(0, &msk, &keyB, (char *)idB, sizeof(idB), (char *)idA, sizeof(idA),
randB, &RB, &RA, klen, skB_new) != 1) {
goto err;
} ++j;
if (memcmp(skA, skA_new, klen) != 0 || memcmp(skB, skB_new, klen) != 0
|| memcmp(skA_new, skB_new, klen) != 0) {
printf("New SM9 key exchange API is not interoperable with step API\n");
goto err;
} ++j;
if (sm9_key_exchange_compute_confirm(1, &msk, &keyA, (char *)idA, sizeof(idA), (char *)idB, sizeof(idB),
rA, &RA, &RB, SA) != 1
|| sm9_key_exchange_compute_confirm(0, &msk, &keyB, (char *)idB, sizeof(idB), (char *)idA, sizeof(idA),
randB, &RB, &RA, SB) != 1) {
goto err;
} ++j;
if (sm9_key_exchange_verify_confirm(1, &msk, &keyA, (char *)idA, sizeof(idA), (char *)idB, sizeof(idB),
rA, &RA, &RB, SB) != 1
|| sm9_key_exchange_verify_confirm(0, &msk, &keyB, (char *)idB, sizeof(idB), (char *)idA, sizeof(idA),
randB, &RB, &RA, SA) != 1) {
goto err;
} ++j;
SB[0] ^= 0x01;
if (sm9_key_exchange_verify_confirm(1, &msk, &keyA, (char *)idA, sizeof(idA), (char *)idB, sizeof(idB),
rA, &RA, &RB, SB) != 0) {
goto err;
} ++j;
printf("%s() ok\n", __FUNCTION__);
return 1;
err: