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coverity: check mp_sub_d return values.

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jordan
2024-10-16 11:23:33 -05:00
parent 2abbab2fd8
commit d6fe15af8c
1 changed files with 11 additions and 3 deletions
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14
wolfcrypt/test/test.c
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@ -56315,16 +56315,24 @@ static wc_test_ret_t mp_test_mont(mp_int* a, mp_int* m, mp_int* n, mp_int* r, WC
/* a = 2^(bits*2) - 1 */ /* a = 2^(bits*2) - 1 */
mp_zero(a); mp_zero(a);
mp_set_bit(a, bits[i] * 2); mp_set_bit(a, bits[i] * 2);
mp_sub_d(a, 1, a); ret = mp_sub_d(a, 1, a);
if (ret != MP_OKAY)
return WC_TEST_RET_ENC_EC(ret);
/* m = 2^(bits) - 1 */ /* m = 2^(bits) - 1 */
mp_zero(m); mp_zero(m);
mp_set_bit(m, bits[i]); mp_set_bit(m, bits[i]);
mp_sub_d(m, 1, m); ret = mp_sub_d(m, 1, m);
if (ret != MP_OKAY)
return WC_TEST_RET_ENC_EC(ret);
mp = 1; mp = 1;
/* result = r = 2^(bits) - 1 */ /* result = r = 2^(bits) - 1 */
mp_zero(r); mp_zero(r);
mp_set_bit(r, bits[i]); mp_set_bit(r, bits[i]);
mp_sub_d(r, 1, r); ret = mp_sub_d(r, 1, r);
if (ret != MP_OKAY)
return WC_TEST_RET_ENC_EC(ret);
ret = mp_montgomery_reduce(a, m, mp); ret = mp_montgomery_reduce(a, m, mp);
if (ret != MP_OKAY) if (ret != MP_OKAY)