src/eap_common/eap_eke_common.c

121 static int eap_eke_prf_len(u8 prf)
123 	if (prf == EAP_EKE_PRF_HMAC_SHA1)
125 	if (prf == EAP_EKE_PRF_HMAC_SHA2_256)
131 static int eap_eke_nonce_len(u8 prf)
135 	prf_len = eap_eke_prf_len(prf);
146 static int eap_eke_auth_len(u8 prf)
148 	switch (prf) {
183 static int eap_eke_prf(u8 prf, const u8 *key, size_t key_len, const u8 *data,
199 	if (prf == EAP_EKE_PRF_HMAC_SHA1)
201 	if (prf == EAP_EKE_PRF_HMAC_SHA2_256)
290 static int eap_eke_prfplus(u8 prf, const u8 *key, size_t key_len,
293 	if (prf == EAP_EKE_PRF_HMAC_SHA1)
296 	if (prf == EAP_EKE_PRF_HMAC_SHA2_256)
313 	/* temp = prf(0+, password) */
315 	if (eap_eke_prf(sess->prf, zeros, sess->prf_len,
318 	wpa_hexdump_key(MSG_DEBUG, "EAP-EKE: temp = prf(0+, password)",
321 	/* key = prf+(temp, ID_S | ID_P) */
329 	if (eap_eke_prfplus(sess->prf, temp, sess->prf_len,
335 	wpa_hexdump_key(MSG_DEBUG, "EAP-EKE: key = prf+(temp, ID_S | ID_P)",
399 	/* SharedSecret = prf(0+, g ^ (x_s * x_p) (mod p)) */
412 	if (eap_eke_prf(sess->prf, zeros, sess->auth_len, modexp, dh->prime_len,
434 	 * Ke | Ki = prf+(SharedSecret, "EAP-EKE Keys" | ID_S | ID_P)
460 	if (eap_eke_prfplus(sess->prf, sess->shared_secret, sess->prf_len,
487 	 * Ka = prf+(SharedSecret, "EAP-EKE Ka" | ID_S | ID_P | Nonce_P |
508 	if (eap_eke_prfplus(sess->prf, sess->shared_secret, sess->prf_len,
534 	 * MSK | EMSK = prf+(SharedSecret, "EAP-EKE Exported Keys" | ID_S |
553 	if (eap_eke_prfplus(sess->prf, sess->shared_secret, sess->prf_len,
693 	return eap_eke_prf(sess->prf, sess->ka, sess->auth_len,
700 			 u8 prf, u8 mac)
704 	sess->prf = prf;
707 	sess->prf_len = eap_eke_prf_len(prf);
708 	sess->nonce_len = eap_eke_nonce_len(prf);
709 	sess->auth_len = eap_eke_auth_len(prf);