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Fix to make sure wolfCrypt DRBG is used with crypto callbacks #498

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Merged
aidangarske merged 1 commit into from
Apr 29, 2026
Merged

Fix to make sure wolfCrypt DRBG is used with crypto callbacks #498

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6 changes: 4 additions & 2 deletions src/tpm2_cryptocb.c
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Original file line number Diff line number Diff line change
Expand Up @@ -71,9 +71,11 @@ int wolfTPM2_CryptoDevCb(int devId, wc_CryptoInfo* info, void* ctx)
#endif

if (info->algo_type == WC_ALGO_TYPE_RNG) {
#ifndef WC_NO_RNG
/* For WOLFTPM2_USE_WOLF_RNG we want to fallback to the wolfCrypt DRBG,
so return CRYPTOCB_UNAVAILABLE here */
#if !defined(WC_NO_RNG) && !defined(WOLFTPM2_USE_WOLF_RNG)
rc = wolfTPM2_GetRandom(tlsCtx->dev, info->rng.out, info->rng.sz);
#endif /* !WC_NO_RNG */
#endif /* !WC_NO_RNG && !WOLFTPM2_USE_WOLF_RNG */
}
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dgarske marked this conversation as resolved.
else if (info->algo_type == WC_ALGO_TYPE_SEED) {
#ifndef WC_NO_RNG
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