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Fix bad logic flow in WC_NO_RNG case.

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This commit is contained in:
David Garske
2021-04-30 14:37:25 -07:00
parent 64ae0a827c
commit 9453f83d28
1 changed files with 7 additions and 6 deletions
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13
wolfcrypt/src/port/nxp/ksdk_port.c
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@@ -560,20 +560,21 @@ int mp_prime_is_prime_ex(mp_int* a, int t, int* result, WC_RNG* rng)
/* The base size is the number of bits / 8. One is added if the number /* The base size is the number of bits / 8. One is added if the number
* of bits isn't an even 8. */ * of bits isn't an even 8. */
sizeB = (sizeB / 8) + ((sizeB % 8) ? 1 : 0); sizeB = (sizeB / 8) + ((sizeB % 8) ? 1 : 0);
ptrA = (uint8_t*)XMALLOC(LTC_MAX_INT_BYTES, NULL, DYNAMIC_TYPE_BIGINT); ptrA = (uint8_t*)XMALLOC(LTC_MAX_INT_BYTES, NULL, DYNAMIC_TYPE_BIGINT);
ptrB = (uint8_t*)XMALLOC(sizeB, NULL, DYNAMIC_TYPE_BIGINT); ptrB = (uint8_t*)XMALLOC(sizeB, NULL, DYNAMIC_TYPE_BIGINT);
if (ptrA == NULL || ptrB == NULL) { if (ptrA == NULL || ptrB == NULL) {
res = MEMORY_E; res = MEMORY_E;
} }
#ifndef WC_NO_RNG if (res == MP_OKAY) {
if (res == MP_OKAY && rng != NULL) { #ifndef WC_NO_RNG
/* A NULL rng will return as bad function arg */
res = wc_RNG_GenerateBlock(rng, ptrB, sizeB); res = wc_RNG_GenerateBlock(rng, ptrB, sizeB);
#else
res = NOT_COMPILED_IN;
#endif
} }
#else
res = NOT_COMPILED_IN;
#endif
if (res == MP_OKAY) { if (res == MP_OKAY) {
res = ltc_get_lsb_bin_from_mp_int(ptrA, a, &sizeA); res = ltc_get_lsb_bin_from_mp_int(ptrA, a, &sizeA);