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zero ECC private key stack buffers

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This commit is contained in:
Jeremiah Mackey
2026-03-26 16:28:21 +00:00
parent a5ae5f128e
commit b71c2a27bf
1 changed files with 3 additions and 0 deletions
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wolfcrypt/src/port/kcapi/kcapi_ecc.c
+3
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@@ -120,6 +120,7 @@ int KcapiEcc_LoadKey(ecc_key* key, byte* pubkey_raw, word32* pubkey_sz,
if (ret == 0) {
ret = kcapi_kpp_setkey(key->handle, priv, keySz);
}
ForceZero(priv, sizeof(priv));
}
else {
/* generate new ephemeral key */
@@ -241,6 +242,7 @@ int KcapiEcc_SharedSecret(ecc_key* private_key, ecc_key* public_key, byte* out,
ret = 0;
}
}
ForceZero(priv, sizeof(priv));
}
if (ret == 0) {
#ifdef KCAPI_USE_XMALLOC
@@ -317,6 +319,7 @@ static int KcapiEcc_SetPrivKey(ecc_key* key)
}
}
ForceZero(priv, sizeof(priv));
return ret;
}