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PEAPv0: Added support for IPMK/CMK derivation in session resumption case

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This commit is contained in:
Jouni Malinen 2008-11-26 13:27:40 +02:00
parent a78d3dbd02
commit 6dcfad915f
1 changed files with 14 additions and 1 deletions
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15
src/eap_peer/eap_peap.c
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@ -60,6 +60,7 @@ struct eap_peap_data {
* EAP-Success and expect AS to send outer
* (unencrypted) EAP-Success after this */
int resuming; /* starting a resumed session */
int reauth; /* reauthentication */
u8 *key_data;
struct wpabuf *pending_phase2_req;
@ -269,6 +270,18 @@ static int eap_peap_derive_cmk(struct eap_sm *sm, struct eap_peap_data *data)
return -1;
wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: TK", tk, 60);
if (data->reauth &&
tls_connection_resumed(sm->ssl_ctx, data->ssl.conn)) {
/* Fast-connect: IPMK|CMK = TK */
os_memcpy(data->ipmk, tk, 40);
wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: IPMK from TK",
data->ipmk, 40);
os_memcpy(data->cmk, tk + 40, 20);
wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: CMK from TK",
data->cmk, 20);
return 0;
}
if (eap_peap_get_isk(sm, data, isk, sizeof(isk)) < 0)
return -1;
wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: ISK", isk, sizeof(isk));
@ -286,7 +299,6 @@ static int eap_peap_derive_cmk(struct eap_sm *sm, struct eap_peap_data *data)
wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: IMCK (IPMKj)",
imck, sizeof(imck));
/* TODO: fast-connect: IPMK|CMK = TK */
os_memcpy(data->ipmk, imck, 40);
wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: IPMK (S-IPMKj)", data->ipmk, 40);
os_memcpy(data->cmk, imck + 40, 20);
@ -1191,6 +1203,7 @@ static void * eap_peap_init_for_reauth(struct eap_sm *sm, void *priv)
data->phase2_eap_success = 0;
data->phase2_eap_started = 0;
data->resuming = 1;
data->reauth = 1;
sm->peap_done = FALSE;
return priv;
}