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wpa_supplicant: Add SAE handshake support for WPA3-PSK

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Under WPA3-Personal, SAE authentication is used to derive PMK
which is more secure and immune to offline dictionary attacks.
1. Add modules to generate SAE commit/confirm for the handshake
2. Add modules that build and parse SAE data in Auth frames
3. Add WPA3 association and key mgmt definitions
4. Invert y-bit while solving for ECC co-ordinate -
     Once an X co-ordinate is obtained, solving for Y co-ordinate
     using an elliptical curve equation results in 2 possible values,
     Y and (P - Y), where p is the prime number. The co-ordinates are
     used for deriving keys in SAE handshake. As par the 802.11 spec
     if LSB of X is same as LSB of Y then Y is chosen, (P - Y) otherwise.
     This is not what is implemented, so fix this behavior to obtain the
     correct Y co-ordinate.
This commit is contained in:
Nachiket Kukade
2019-11-21 12:41:12 +05:30
committed by bot
parent aceb141d2b
commit da07b2b4a7
14 changed files with 464 additions and 72 deletions
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8
components/wpa_supplicant/src/esp_supplicant/esp_wifi_driver.h
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@@ -64,7 +64,8 @@ enum {
WPA_AUTH_CCKM = 0x06,
WPA2_AUTH_CCKM = 0x07,
WPA2_AUTH_PSK_SHA256= 0x08,
WPA2_AUTH_INVALID = 0x09,
WPA3_AUTH_PSK = 0x09,
WPA2_AUTH_INVALID = 0x0a,
};
typedef enum {
@@ -121,6 +122,10 @@ struct wpa_funcs {
int (*wpa_parse_wpa_ie)(const u8 *wpa_ie, size_t wpa_ie_len, wifi_wpa_ie_t *data);
int (*wpa_config_bss)(u8 *bssid);
int (*wpa_michael_mic_failure)(u16 is_unicast);
#ifdef CONFIG_WPA3_SAE
u8 *(*wpa3_build_sae_msg)(u8 *bssid, u32 type, u32 *len);
int (*wpa3_parse_sae_msg)(u8 *buf, u32 len, u32 type);
#endif
};
struct wpa2_funcs {
@@ -209,6 +214,7 @@ int esp_wifi_ipc_internal(wifi_ipc_config_t *cfg, bool sync);
int esp_wifi_register_wpa2_cb_internal(struct wpa2_funcs *cb);
int esp_wifi_unregister_wpa2_cb_internal(void);
bool esp_wifi_sta_prof_is_wpa2_internal(void);
bool esp_wifi_sta_prof_is_wpa3_internal(void);
esp_err_t esp_wifi_sta_wpa2_ent_disable_internal(wifi_wpa2_param_t *param);
esp_err_t esp_wifi_sta_wpa2_ent_enable_internal(wifi_wpa2_param_t *param);
esp_err_t esp_wifi_set_wpa2_ent_state_internal(wpa2_ent_eap_state_t state);