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eap-wsc: clear out intermediate key data

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This commit is contained in:
Denis Kenzior 2016-08-30 14:41:58 -05:00
parent 39d6acb07d
commit 046c7b8994
1 changed files with 7 additions and 1 deletions
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8
src/eap-wsc.c
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@ -307,8 +307,12 @@ static void eap_wsc_handle_m2(struct eap_state *eap,
l_checksum_get_digest(sha256, dhkey, sizeof(dhkey));
l_checksum_free(sha256);
memset(shared_secret, 0, shared_secret_len);
hmac_sha256 = l_checksum_new_hmac(L_CHECKSUM_SHA256,
dhkey, sizeof(dhkey));
memset(dhkey, 0, sizeof(dhkey));
if (!hmac_sha256)
return;
@ -323,7 +327,9 @@ static void eap_wsc_handle_m2(struct eap_state *eap,
l_checksum_get_digest(hmac_sha256, kdk, sizeof(kdk));
l_checksum_free(hmac_sha256);
if (!wsc_kdf(kdk, &keys, sizeof(keys)))
r = wsc_kdf(kdk, &keys, sizeof(keys));
memset(kdk, 0, sizeof(kdk));
if (!r)
return;
wsc->hmac_auth_key = l_checksum_new_hmac(L_CHECKSUM_SHA256,