static const struct dpp_curve_params dpp_curves[] = {
/* The mandatory to support and the default NIST P-256 curve needs to
* be the first entry on this list. */
- { "prime256v1", 32, 32, 16, 32, "P-256" },
- { "secp384r1", 48, 48, 24, 48, "P-384" },
- { "secp521r1", 64, 64, 32, 66, "P-521" },
- { "brainpoolP256r1", 32, 32, 16, 32, "BP-256R1" },
- { "brainpoolP384r1", 48, 48, 24, 48, "BP-384R1" },
- { "brainpoolP512r1", 64, 64, 32, 64, "BP-512R1" },
- { NULL, 0, 0, 0, 0, NULL }
+ { "prime256v1", 32, 32, 16, 32, "P-256", 19 },
+ { "secp384r1", 48, 48, 24, 48, "P-384", 20 },
+ { "secp521r1", 64, 64, 32, 66, "P-521", 21 },
+ { "brainpoolP256r1", 32, 32, 16, 32, "BP-256R1", 28 },
+ { "brainpoolP384r1", 48, 48, 24, 48, "BP-384R1", 29 },
+ { "brainpoolP512r1", 64, 64, 32, 64, "BP-512R1", 30 },
+ { NULL, 0, 0, 0, 0, NULL, 0 }
+};
+
+
+/* Role-specific elements for PKEX */
+
+/* NIST P-256 */
+static const u8 pkex_init_x_p256[32] = {
+ 0x56, 0x26, 0x12, 0xcf, 0x36, 0x48, 0xfe, 0x0b,
+ 0x07, 0x04, 0xbb, 0x12, 0x22, 0x50, 0xb2, 0x54,
+ 0xb1, 0x94, 0x64, 0x7e, 0x54, 0xce, 0x08, 0x07,
+ 0x2e, 0xec, 0xca, 0x74, 0x5b, 0x61, 0x2d, 0x25
+ };
+static const u8 pkex_init_y_p256[32] = {
+ 0x3e, 0x44, 0xc7, 0xc9, 0x8c, 0x1c, 0xa1, 0x0b,
+ 0x20, 0x09, 0x93, 0xb2, 0xfd, 0xe5, 0x69, 0xdc,
+ 0x75, 0xbc, 0xad, 0x33, 0xc1, 0xe7, 0xc6, 0x45,
+ 0x4d, 0x10, 0x1e, 0x6a, 0x3d, 0x84, 0x3c, 0xa4
+ };
+static const u8 pkex_resp_x_p256[32] = {
+ 0x1e, 0xa4, 0x8a, 0xb1, 0xa4, 0xe8, 0x42, 0x39,
+ 0xad, 0x73, 0x07, 0xf2, 0x34, 0xdf, 0x57, 0x4f,
+ 0xc0, 0x9d, 0x54, 0xbe, 0x36, 0x1b, 0x31, 0x0f,
+ 0x59, 0x91, 0x52, 0x33, 0xac, 0x19, 0x9d, 0x76
+};
+static const u8 pkex_resp_y_p256[32] = {
+ 0x26, 0x04, 0x09, 0x45, 0x0a, 0x05, 0x20, 0xe7,
+ 0xa7, 0x27, 0xc1, 0x36, 0x76, 0x85, 0xca, 0x3e,
+ 0x42, 0x16, 0xf4, 0x89, 0x85, 0x34, 0x6e, 0xd5,
+ 0x17, 0xde, 0xc0, 0xb8, 0xad, 0xfd, 0xb2, 0x98
+};
+
+/* NIST P-384 */
+static const u8 pkex_init_x_p384[48] = {
+ 0x95, 0x3f, 0x42, 0x9e, 0x50, 0x7f, 0xf9, 0xaa,
+ 0xac, 0x1a, 0xf2, 0x85, 0x2e, 0x64, 0x91, 0x68,
+ 0x64, 0xc4, 0x3c, 0xb7, 0x5c, 0xf8, 0xc9, 0x53,
+ 0x6e, 0x58, 0x4c, 0x7f, 0xc4, 0x64, 0x61, 0xac,
+ 0x51, 0x8a, 0x6f, 0xfe, 0xab, 0x74, 0xe6, 0x12,
+ 0x81, 0xac, 0x38, 0x5d, 0x41, 0xe6, 0xb9, 0xa3
+};
+static const u8 pkex_init_y_p384[48] = {
+ 0x89, 0xd0, 0x97, 0x7b, 0x59, 0x4f, 0xa6, 0xd6,
+ 0x7c, 0x5d, 0x93, 0x5b, 0x93, 0xc4, 0x07, 0xa9,
+ 0x89, 0xee, 0xd5, 0xcd, 0x6f, 0x42, 0xf8, 0x38,
+ 0xc8, 0xc6, 0x62, 0x24, 0x69, 0x0c, 0xd4, 0x48,
+ 0xd8, 0x44, 0xd6, 0xc2, 0xe8, 0xcc, 0x62, 0x6b,
+ 0x3c, 0x25, 0x53, 0xba, 0x4f, 0x71, 0xf8, 0xe7
+};
+static const u8 pkex_resp_x_p384[48] = {
+ 0xad, 0xbe, 0xd7, 0x1d, 0x3a, 0x71, 0x64, 0x98,
+ 0x5f, 0xb4, 0xd6, 0x4b, 0x50, 0xd0, 0x84, 0x97,
+ 0x4b, 0x7e, 0x57, 0x70, 0xd2, 0xd9, 0xf4, 0x92,
+ 0x2a, 0x3f, 0xce, 0x99, 0xc5, 0x77, 0x33, 0x44,
+ 0x14, 0x56, 0x92, 0xcb, 0xae, 0x46, 0x64, 0xdf,
+ 0xe0, 0xbb, 0xd7, 0xb1, 0x29, 0x20, 0x72, 0xdf
+};
+static const u8 pkex_resp_y_p384[48] = {
+ 0x54, 0x58, 0x20, 0xad, 0x55, 0x1d, 0xca, 0xf3,
+ 0x1c, 0x8a, 0xcd, 0x19, 0x40, 0xf9, 0x37, 0x83,
+ 0xc7, 0xd6, 0xb3, 0x13, 0x7d, 0x53, 0x28, 0x5c,
+ 0xf6, 0x2d, 0xf1, 0xdd, 0xa5, 0x8b, 0xad, 0x5d,
+ 0x81, 0xab, 0xb1, 0x00, 0x39, 0xd6, 0xcc, 0x9c,
+ 0xea, 0x1e, 0x84, 0x1d, 0xbf, 0xe3, 0x35, 0xf9
+};
+
+/* NIST P-521 */
+static const u8 pkex_init_x_p521[66] = {
+ 0x00, 0x16, 0x20, 0x45, 0x19, 0x50, 0x95, 0x23,
+ 0x0d, 0x24, 0xbe, 0x00, 0x87, 0xdc, 0xfa, 0xf0,
+ 0x58, 0x9a, 0x01, 0x60, 0x07, 0x7a, 0xca, 0x76,
+ 0x01, 0xab, 0x2d, 0x5a, 0x46, 0xcd, 0x2c, 0xb5,
+ 0x11, 0x9a, 0xff, 0xaa, 0x48, 0x04, 0x91, 0x38,
+ 0xcf, 0x86, 0xfc, 0xa4, 0xa5, 0x0f, 0x47, 0x01,
+ 0x80, 0x1b, 0x30, 0xa3, 0xae, 0xe8, 0x1c, 0x2e,
+ 0xea, 0xcc, 0xf0, 0x03, 0x9f, 0x77, 0x4c, 0x8d,
+ 0x97, 0x76
+};
+static const u8 pkex_init_y_p521[66] = {
+ 0x01, 0x4c, 0x71, 0xfd, 0x1b, 0xd5, 0x9c, 0xa6,
+ 0xed, 0x39, 0xef, 0x45, 0xc5, 0x06, 0xfd, 0x66,
+ 0xc0, 0xeb, 0x0f, 0xbf, 0x21, 0xa3, 0x36, 0x74,
+ 0xfd, 0xaa, 0x05, 0x6e, 0x4e, 0x33, 0x95, 0x42,
+ 0x1a, 0x9d, 0x3f, 0x3a, 0x1c, 0x5e, 0xa8, 0x60,
+ 0xf7, 0xe5, 0x59, 0x1d, 0x07, 0xaa, 0x6f, 0x40,
+ 0x0a, 0x59, 0x3c, 0x27, 0xad, 0xe0, 0x48, 0xfd,
+ 0xd1, 0x83, 0x37, 0x4c, 0xdf, 0xe1, 0x86, 0x72,
+ 0xfc, 0x57
+};
+static const u8 pkex_resp_x_p521[66] = {
+ 0x00, 0x79, 0xe4, 0x4d, 0x6b, 0x5e, 0x12, 0x0a,
+ 0x18, 0x2c, 0xb3, 0x05, 0x77, 0x0f, 0xc3, 0x44,
+ 0x1a, 0xcd, 0x78, 0x46, 0x14, 0xee, 0x46, 0x3f,
+ 0xab, 0xc9, 0x59, 0x7c, 0x85, 0xa0, 0xc2, 0xfb,
+ 0x02, 0x32, 0x99, 0xde, 0x5d, 0xe1, 0x0d, 0x48,
+ 0x2d, 0x71, 0x7d, 0x8d, 0x3f, 0x61, 0x67, 0x9e,
+ 0x2b, 0x8b, 0x12, 0xde, 0x10, 0x21, 0x55, 0x0a,
+ 0x5b, 0x2d, 0xe8, 0x05, 0x09, 0xf6, 0x20, 0x97,
+ 0x84, 0xb4
+};
+static const u8 pkex_resp_y_p521[66] = {
+ 0x01, 0xb9, 0x9c, 0xc6, 0x41, 0x32, 0x5b, 0xd2,
+ 0x35, 0xd8, 0x8b, 0x2b, 0xe4, 0x6e, 0xcc, 0xdf,
+ 0x7c, 0x38, 0xc4, 0x5b, 0xf6, 0x74, 0x71, 0x5c,
+ 0x77, 0x16, 0x8a, 0x80, 0xa9, 0x84, 0xc7, 0x7b,
+ 0x9d, 0xfd, 0x83, 0x6f, 0xae, 0xf8, 0x24, 0x16,
+ 0x2f, 0x21, 0x25, 0x65, 0xa2, 0x1a, 0x6b, 0x2d,
+ 0x30, 0x62, 0xb3, 0xcc, 0x6e, 0x59, 0x3c, 0x7f,
+ 0x58, 0x91, 0x81, 0x72, 0x07, 0x8c, 0x91, 0xac,
+ 0x31, 0x1e
+};
+
+/* Brainpool P-256r1 */
+static const u8 pkex_init_x_bp_p256r1[32] = {
+ 0x46, 0x98, 0x18, 0x6c, 0x27, 0xcd, 0x4b, 0x10,
+ 0x7d, 0x55, 0xa3, 0xdd, 0x89, 0x1f, 0x9f, 0xca,
+ 0xc7, 0x42, 0x5b, 0x8a, 0x23, 0xed, 0xf8, 0x75,
+ 0xac, 0xc7, 0xe9, 0x8d, 0xc2, 0x6f, 0xec, 0xd8
+};
+static const u8 pkex_init_y_bp_p256r1[32] = {
+ 0x16, 0x30, 0x68, 0x32, 0x3b, 0xb0, 0x21, 0xee,
+ 0xeb, 0xf7, 0xb6, 0x7c, 0xae, 0x52, 0x26, 0x42,
+ 0x59, 0x28, 0x58, 0xb6, 0x14, 0x90, 0xed, 0x69,
+ 0xd0, 0x67, 0xea, 0x25, 0x60, 0x0f, 0xa9, 0x6c
+};
+static const u8 pkex_resp_x_bp_p256r1[32] = {
+ 0x90, 0x18, 0x84, 0xc9, 0xdc, 0xcc, 0xb5, 0x2f,
+ 0x4a, 0x3f, 0x4f, 0x18, 0x0a, 0x22, 0x56, 0x6a,
+ 0xa9, 0xef, 0xd4, 0xe6, 0xc3, 0x53, 0xc2, 0x1a,
+ 0x23, 0x54, 0xdd, 0x08, 0x7e, 0x10, 0xd8, 0xe3
+};
+static const u8 pkex_resp_y_bp_p256r1[32] = {
+ 0x2a, 0xfa, 0x98, 0x9b, 0xe3, 0xda, 0x30, 0xfd,
+ 0x32, 0x28, 0xcb, 0x66, 0xfb, 0x40, 0x7f, 0xf2,
+ 0xb2, 0x25, 0x80, 0x82, 0x44, 0x85, 0x13, 0x7e,
+ 0x4b, 0xb5, 0x06, 0xc0, 0x03, 0x69, 0x23, 0x64
+};
+
+/* Brainpool P-384r1 */
+static const u8 pkex_init_x_bp_p384r1[48] = {
+ 0x0a, 0x2c, 0xeb, 0x49, 0x5e, 0xb7, 0x23, 0xbd,
+ 0x20, 0x5b, 0xe0, 0x49, 0xdf, 0xcf, 0xcf, 0x19,
+ 0x37, 0x36, 0xe1, 0x2f, 0x59, 0xdb, 0x07, 0x06,
+ 0xb5, 0xeb, 0x2d, 0xae, 0xc2, 0xb2, 0x38, 0x62,
+ 0xa6, 0x73, 0x09, 0xa0, 0x6c, 0x0a, 0xa2, 0x30,
+ 0x99, 0xeb, 0xf7, 0x1e, 0x47, 0xb9, 0x5e, 0xbe
+};
+static const u8 pkex_init_y_bp_p384r1[48] = {
+ 0x54, 0x76, 0x61, 0x65, 0x75, 0x5a, 0x2f, 0x99,
+ 0x39, 0x73, 0xca, 0x6c, 0xf9, 0xf7, 0x12, 0x86,
+ 0x54, 0xd5, 0xd4, 0xad, 0x45, 0x7b, 0xbf, 0x32,
+ 0xee, 0x62, 0x8b, 0x9f, 0x52, 0xe8, 0xa0, 0xc9,
+ 0xb7, 0x9d, 0xd1, 0x09, 0xb4, 0x79, 0x1c, 0x3e,
+ 0x1a, 0xbf, 0x21, 0x45, 0x66, 0x6b, 0x02, 0x52
+};
+static const u8 pkex_resp_x_bp_p384r1[48] = {
+ 0x03, 0xa2, 0x57, 0xef, 0xe8, 0x51, 0x21, 0xa0,
+ 0xc8, 0x9e, 0x21, 0x02, 0xb5, 0x9a, 0x36, 0x25,
+ 0x74, 0x22, 0xd1, 0xf2, 0x1b, 0xa8, 0x9a, 0x9b,
+ 0x97, 0xbc, 0x5a, 0xeb, 0x26, 0x15, 0x09, 0x71,
+ 0x77, 0x59, 0xec, 0x8b, 0xb7, 0xe1, 0xe8, 0xce,
+ 0x65, 0xb8, 0xaf, 0xf8, 0x80, 0xae, 0x74, 0x6c
+};
+static const u8 pkex_resp_y_bp_p384r1[48] = {
+ 0x2f, 0xd9, 0x6a, 0xc7, 0x3e, 0xec, 0x76, 0x65,
+ 0x2d, 0x38, 0x7f, 0xec, 0x63, 0x26, 0x3f, 0x04,
+ 0xd8, 0x4e, 0xff, 0xe1, 0x0a, 0x51, 0x74, 0x70,
+ 0xe5, 0x46, 0x63, 0x7f, 0x5c, 0xc0, 0xd1, 0x7c,
+ 0xfb, 0x2f, 0xea, 0xe2, 0xd8, 0x0f, 0x84, 0xcb,
+ 0xe9, 0x39, 0x5c, 0x64, 0xfe, 0xcb, 0x2f, 0xf1
+};
+
+/* Brainpool P-512r1 */
+static const u8 pkex_init_x_bp_p512r1[64] = {
+ 0x4c, 0xe9, 0xb6, 0x1c, 0xe2, 0x00, 0x3c, 0x9c,
+ 0xa9, 0xc8, 0x56, 0x52, 0xaf, 0x87, 0x3e, 0x51,
+ 0x9c, 0xbb, 0x15, 0x31, 0x1e, 0xc1, 0x05, 0xfc,
+ 0x7c, 0x77, 0xd7, 0x37, 0x61, 0x27, 0xd0, 0x95,
+ 0x98, 0xee, 0x5d, 0xa4, 0x3d, 0x09, 0xdb, 0x3d,
+ 0xfa, 0x89, 0x9e, 0x7f, 0xa6, 0xa6, 0x9c, 0xff,
+ 0x83, 0x5c, 0x21, 0x6c, 0x3e, 0xf2, 0xfe, 0xdc,
+ 0x63, 0xe4, 0xd1, 0x0e, 0x75, 0x45, 0x69, 0x0f
+};
+static const u8 pkex_init_y_bp_p512r1[64] = {
+ 0x5a, 0x28, 0x01, 0xbe, 0x96, 0x82, 0x4e, 0xf6,
+ 0xfa, 0xed, 0x7d, 0xfd, 0x48, 0x8b, 0x48, 0x4e,
+ 0xd1, 0x97, 0x87, 0xc4, 0x05, 0x5d, 0x15, 0x2a,
+ 0xf4, 0x91, 0x4b, 0x75, 0x90, 0xd9, 0x34, 0x2c,
+ 0x3c, 0x12, 0xf2, 0xf5, 0x25, 0x94, 0x24, 0x34,
+ 0xa7, 0x6d, 0x66, 0xbc, 0x27, 0xa4, 0xa0, 0x8d,
+ 0xd5, 0xe1, 0x54, 0xa3, 0x55, 0x26, 0xd4, 0x14,
+ 0x17, 0x0f, 0xc1, 0xc7, 0x3d, 0x68, 0x7f, 0x5a
+};
+static const u8 pkex_resp_x_bp_p512r1[64] = {
+ 0x2a, 0x60, 0x32, 0x27, 0xa1, 0xe6, 0x94, 0x72,
+ 0x1c, 0x48, 0xbe, 0xc5, 0x77, 0x14, 0x30, 0x76,
+ 0xe4, 0xbf, 0xf7, 0x7b, 0xc5, 0xfd, 0xdf, 0x19,
+ 0x1e, 0x0f, 0xdf, 0x1c, 0x40, 0xfa, 0x34, 0x9e,
+ 0x1f, 0x42, 0x24, 0xa3, 0x2c, 0xd5, 0xc7, 0xc9,
+ 0x7b, 0x47, 0x78, 0x96, 0xf1, 0x37, 0x0e, 0x88,
+ 0xcb, 0xa6, 0x52, 0x29, 0xd7, 0xa8, 0x38, 0x29,
+ 0x8e, 0x6e, 0x23, 0x47, 0xd4, 0x4b, 0x70, 0x3e
+};
+static const u8 pkex_resp_y_bp_p512r1[64] = {
+ 0x2a, 0xbe, 0x59, 0xe6, 0xc4, 0xb3, 0xd8, 0x09,
+ 0x66, 0x89, 0x0a, 0x2d, 0x19, 0xf0, 0x9c, 0x9f,
+ 0xb4, 0xab, 0x8f, 0x50, 0x68, 0x3c, 0x74, 0x64,
+ 0x4e, 0x19, 0x55, 0x81, 0x9b, 0x48, 0x5c, 0xf4,
+ 0x12, 0x8d, 0xb9, 0xd8, 0x02, 0x5b, 0xe1, 0x26,
+ 0x7e, 0x19, 0x5c, 0xfd, 0x70, 0xf7, 0x4b, 0xdc,
+ 0xb5, 0x5d, 0xc1, 0x7a, 0xe9, 0xd1, 0x05, 0x2e,
+ 0xd1, 0xfd, 0x2f, 0xce, 0x63, 0x77, 0x48, 0x2c
};
}
+int dpp_bootstrap_key_hash(struct dpp_bootstrap_info *bi)
+{
+ unsigned char *der = NULL;
+ int der_len;
+ EC_KEY *eckey;
+ int res;
+ size_t len;
+
+ /* Need to get the compressed form of the public key through EC_KEY, so
+ * cannot use the simpler i2d_PUBKEY() here. */
+ eckey = EVP_PKEY_get1_EC_KEY(bi->pubkey);
+ if (!eckey)
+ return -1;
+ EC_KEY_set_conv_form(eckey, POINT_CONVERSION_COMPRESSED);
+ der_len = i2d_EC_PUBKEY(eckey, &der);
+ EC_KEY_free(eckey);
+ if (der_len <= 0) {
+ wpa_printf(MSG_ERROR,
+ "DDP: Failed to build DER encoded public key");
+ OPENSSL_free(der);
+ return -1;
+ }
+
+ len = der_len;
+ res = sha256_vector(1, (const u8 **) &der, &len, bi->pubkey_hash);
+ OPENSSL_free(der);
+ if (res < 0)
+ wpa_printf(MSG_DEBUG, "DPP: Failed to hash public key");
+ return res;
+}
+
+
char * dpp_keygen(struct dpp_bootstrap_info *bi, const char *curve,
const u8 *privkey, size_t privkey_len)
{
json_free(own_root);
return ret;
}
+
+
+static EVP_PKEY * dpp_pkex_get_role_elem(const struct dpp_curve_params *curve,
+ int init)
+{
+ EC_GROUP *group;
+ size_t len = curve->prime_len;
+ const u8 *x, *y;
+
+ switch (curve->ike_group) {
+ case 19:
+ x = init ? pkex_init_x_p256 : pkex_resp_x_p256;
+ y = init ? pkex_init_y_p256 : pkex_resp_y_p256;
+ break;
+ case 20:
+ x = init ? pkex_init_x_p384 : pkex_resp_x_p384;
+ y = init ? pkex_init_y_p384 : pkex_resp_y_p384;
+ break;
+ case 21:
+ x = init ? pkex_init_x_p521 : pkex_resp_x_p521;
+ y = init ? pkex_init_y_p521 : pkex_resp_y_p521;
+ break;
+ case 28:
+ x = init ? pkex_init_x_bp_p256r1 : pkex_resp_x_bp_p256r1;
+ y = init ? pkex_init_y_bp_p256r1 : pkex_resp_y_bp_p256r1;
+ break;
+ case 29:
+ x = init ? pkex_init_x_bp_p384r1 : pkex_resp_x_bp_p384r1;
+ y = init ? pkex_init_y_bp_p384r1 : pkex_resp_y_bp_p384r1;
+ break;
+ case 30:
+ x = init ? pkex_init_x_bp_p512r1 : pkex_resp_x_bp_p512r1;
+ y = init ? pkex_init_y_bp_p512r1 : pkex_resp_y_bp_p512r1;
+ break;
+ default:
+ return NULL;
+ }
+
+ group = EC_GROUP_new_by_curve_name(OBJ_txt2nid(curve->name));
+ if (!group)
+ return NULL;
+ return dpp_set_pubkey_point_group(group, x, y, len);
+}
+
+
+static EC_POINT * dpp_pkex_derive_Qi(const struct dpp_curve_params *curve,
+ const u8 *mac_init, const char *code,
+ const char *identifier, BN_CTX *bnctx,
+ const EC_GROUP **ret_group)
+{
+ u8 hash[DPP_MAX_HASH_LEN];
+ const u8 *addr[3];
+ size_t len[3];
+ unsigned int num_elem = 0;
+ EC_POINT *Qi = NULL;
+ EVP_PKEY *Pi = NULL;
+ EC_KEY *Pi_ec = NULL;
+ const EC_POINT *Pi_point;
+ BIGNUM *hash_bn = NULL;
+ const EC_GROUP *group = NULL;
+ EC_GROUP *group2 = NULL;
+
+ /* Qi = H(MAC-Initiator | [identifier |] code) * Pi */
+
+ wpa_printf(MSG_DEBUG, "DPP: MAC-Initiator: " MACSTR, MAC2STR(mac_init));
+ addr[num_elem] = mac_init;
+ len[num_elem] = ETH_ALEN;
+ num_elem++;
+ if (identifier) {
+ wpa_printf(MSG_DEBUG, "DPP: code identifier: %s",
+ identifier);
+ addr[num_elem] = (const u8 *) identifier;
+ len[num_elem] = os_strlen(identifier);
+ num_elem++;
+ }
+ wpa_hexdump_ascii_key(MSG_DEBUG, "DPP: code", code, os_strlen(code));
+ addr[num_elem] = (const u8 *) code;
+ len[num_elem] = os_strlen(code);
+ num_elem++;
+ if (dpp_hash_vector(curve, num_elem, addr, len, hash) < 0)
+ goto fail;
+ wpa_hexdump_key(MSG_DEBUG,
+ "DPP: H(MAC-Initiator | [identifier |] code)",
+ hash, curve->hash_len);
+ Pi = dpp_pkex_get_role_elem(curve, 1);
+ if (!Pi)
+ goto fail;
+ dpp_debug_print_key("DPP: Pi", Pi);
+ Pi_ec = EVP_PKEY_get1_EC_KEY(Pi);
+ if (!Pi_ec)
+ goto fail;
+ Pi_point = EC_KEY_get0_public_key(Pi_ec);
+
+ group = EC_KEY_get0_group(Pi_ec);
+ if (!group)
+ goto fail;
+ group2 = EC_GROUP_dup(group);
+ if (!group2)
+ goto fail;
+ Qi = EC_POINT_new(group2);
+ if (!Qi) {
+ EC_GROUP_free(group2);
+ goto fail;
+ }
+ hash_bn = BN_bin2bn(hash, curve->hash_len, NULL);
+ if (!hash_bn ||
+ EC_POINT_mul(group2, Qi, NULL, Pi_point, hash_bn, bnctx) != 1)
+ goto fail;
+out:
+ EC_KEY_free(Pi_ec);
+ EVP_PKEY_free(Pi);
+ BN_clear_free(hash_bn);
+ if (ret_group)
+ *ret_group = group2;
+ return Qi;
+fail:
+ EC_POINT_free(Qi);
+ Qi = NULL;
+ goto out;
+}
+
+
+static EC_POINT * dpp_pkex_derive_Qr(const struct dpp_curve_params *curve,
+ const u8 *mac_resp, const char *code,
+ const char *identifier, BN_CTX *bnctx,
+ const EC_GROUP **ret_group)
+{
+ u8 hash[DPP_MAX_HASH_LEN];
+ const u8 *addr[3];
+ size_t len[3];
+ unsigned int num_elem = 0;
+ EC_POINT *Qr = NULL;
+ EVP_PKEY *Pr = NULL;
+ EC_KEY *Pr_ec = NULL;
+ const EC_POINT *Pr_point;
+ BIGNUM *hash_bn = NULL;
+ const EC_GROUP *group = NULL;
+ EC_GROUP *group2 = NULL;
+
+ /* Qr = H(MAC-Responder | | [identifier | ] code) * Pr */
+
+ wpa_printf(MSG_DEBUG, "DPP: MAC-Responder: " MACSTR, MAC2STR(mac_resp));
+ addr[num_elem] = mac_resp;
+ len[num_elem] = ETH_ALEN;
+ num_elem++;
+ if (identifier) {
+ wpa_printf(MSG_DEBUG, "DPP: code identifier: %s",
+ identifier);
+ addr[num_elem] = (const u8 *) identifier;
+ len[num_elem] = os_strlen(identifier);
+ num_elem++;
+ }
+ wpa_hexdump_ascii_key(MSG_DEBUG, "DPP: code", code, os_strlen(code));
+ addr[num_elem] = (const u8 *) code;
+ len[num_elem] = os_strlen(code);
+ num_elem++;
+ if (dpp_hash_vector(curve, num_elem, addr, len, hash) < 0)
+ goto fail;
+ wpa_hexdump_key(MSG_DEBUG,
+ "DPP: H(MAC-Responder | [identifier |] code)",
+ hash, curve->hash_len);
+ Pr = dpp_pkex_get_role_elem(curve, 0);
+ if (!Pr)
+ goto fail;
+ dpp_debug_print_key("DPP: Pr", Pr);
+ Pr_ec = EVP_PKEY_get1_EC_KEY(Pr);
+ if (!Pr_ec)
+ goto fail;
+ Pr_point = EC_KEY_get0_public_key(Pr_ec);
+
+ group = EC_KEY_get0_group(Pr_ec);
+ if (!group)
+ goto fail;
+ group2 = EC_GROUP_dup(group);
+ if (!group2)
+ goto fail;
+ Qr = EC_POINT_new(group2);
+ if (!Qr) {
+ EC_GROUP_free(group2);
+ goto fail;
+ }
+ hash_bn = BN_bin2bn(hash, curve->hash_len, NULL);
+ if (!hash_bn ||
+ EC_POINT_mul(group2, Qr, NULL, Pr_point, hash_bn, bnctx) != 1)
+ goto fail;
+out:
+ EC_KEY_free(Pr_ec);
+ EVP_PKEY_free(Pr);
+ BN_clear_free(hash_bn);
+ if (ret_group)
+ *ret_group = group2;
+ return Qr;
+fail:
+ EC_POINT_free(Qr);
+ Qr = NULL;
+ goto out;
+}
+
+
+static struct wpabuf * dpp_pkex_build_exchange_req(struct dpp_pkex *pkex)
+{
+ EC_KEY *X_ec = NULL;
+ const EC_POINT *X_point;
+ BN_CTX *bnctx = NULL;
+ const EC_GROUP *group;
+ EC_POINT *Qi = NULL, *M = NULL;
+ struct wpabuf *M_buf = NULL;
+ BIGNUM *Mx = NULL, *My = NULL;
+ struct wpabuf *msg = NULL;
+ size_t attr_len;
+ const struct dpp_curve_params *curve = pkex->own_bi->curve;
+ int num_bytes, offset;
+
+ wpa_printf(MSG_DEBUG, "DPP: Build PKEX Exchange Request");
+
+ /* Qi = H(MAC-Initiator | [identifier |] code) * Pi */
+ bnctx = BN_CTX_new();
+ if (!bnctx)
+ goto fail;
+ Qi = dpp_pkex_derive_Qi(curve, pkex->own_mac, pkex->code,
+ pkex->identifier, bnctx, &group);
+ if (!Qi)
+ goto fail;
+
+ /* Generate a random ephemeral keypair x/X */
+ pkex->x = dpp_gen_keypair(curve);
+ if (!pkex->x)
+ goto fail;
+
+ /* M = X + Qi */
+ X_ec = EVP_PKEY_get1_EC_KEY(pkex->x);
+ if (!X_ec)
+ goto fail;
+ X_point = EC_KEY_get0_public_key(X_ec);
+ if (!X_point)
+ goto fail;
+ M = EC_POINT_new(group);
+ Mx = BN_new();
+ My = BN_new();
+ if (!M || !Mx || !My ||
+ EC_POINT_add(group, M, X_point, Qi, bnctx) != 1 ||
+ EC_POINT_get_affine_coordinates_GFp(group, M, Mx, My, bnctx) != 1)
+ goto fail;
+
+ /* Initiator -> Responder: group, [identifier,] M */
+ attr_len = 4 + 2;
+ if (pkex->identifier)
+ attr_len += 4 + os_strlen(pkex->identifier);
+ attr_len += 4 + 2 * curve->prime_len;
+ msg = dpp_alloc_msg(DPP_PA_PKEX_EXCHANGE_REQ, attr_len);
+ if (!msg)
+ goto fail;
+
+ /* Finite Cyclic Group attribute */
+ wpabuf_put_le16(msg, DPP_ATTR_FINITE_CYCLIC_GROUP);
+ wpabuf_put_le16(msg, 2);
+ wpabuf_put_le16(msg, curve->ike_group);
+
+ /* Code Identifier attribute */
+ if (pkex->identifier) {
+ wpabuf_put_le16(msg, DPP_ATTR_CODE_IDENTIFIER);
+ wpabuf_put_le16(msg, os_strlen(pkex->identifier));
+ wpabuf_put_str(msg, pkex->identifier);
+ }
+
+ /* M in Encrypted Key attribute */
+ wpabuf_put_le16(msg, DPP_ATTR_ENCRYPTED_KEY);
+ wpabuf_put_le16(msg, 2 * curve->prime_len);
+
+ num_bytes = BN_num_bytes(Mx);
+ if ((size_t) num_bytes > curve->prime_len)
+ goto fail;
+ if (curve->prime_len > (size_t) num_bytes)
+ offset = curve->prime_len - num_bytes;
+ else
+ offset = 0;
+ os_memset(wpabuf_put(msg, offset), 0, offset);
+ BN_bn2bin(Mx, wpabuf_put(msg, num_bytes));
+ os_memset(pkex->Mx, 0, offset);
+ BN_bn2bin(Mx, pkex->Mx + offset);
+
+ num_bytes = BN_num_bytes(My);
+ if ((size_t) num_bytes > curve->prime_len)
+ goto fail;
+ if (curve->prime_len > (size_t) num_bytes)
+ offset = curve->prime_len - num_bytes;
+ else
+ offset = 0;
+ os_memset(wpabuf_put(msg, offset), 0, offset);
+ BN_bn2bin(My, wpabuf_put(msg, num_bytes));
+
+out:
+ wpabuf_free(M_buf);
+ EC_KEY_free(X_ec);
+ EC_POINT_free(M);
+ EC_POINT_free(Qi);
+ BN_clear_free(Mx);
+ BN_clear_free(My);
+ BN_CTX_free(bnctx);
+ return msg;
+fail:
+ wpa_printf(MSG_INFO, "DPP: Failed to build PKEX Exchange Request");
+ wpabuf_free(msg);
+ msg = NULL;
+ goto out;
+}
+
+
+struct dpp_pkex * dpp_pkex_init(struct dpp_bootstrap_info *bi,
+ const u8 *own_mac,
+ const char *identifier,
+ const char *code)
+{
+ struct dpp_pkex *pkex;
+
+ pkex = os_zalloc(sizeof(*pkex));
+ if (!pkex)
+ return NULL;
+ pkex->initiator = 1;
+ pkex->own_bi = bi;
+ os_memcpy(pkex->own_mac, own_mac, ETH_ALEN);
+ if (identifier) {
+ pkex->identifier = os_strdup(identifier);
+ if (!pkex->identifier)
+ goto fail;
+ }
+ pkex->code = os_strdup(code);
+ if (!pkex->code)
+ goto fail;
+ pkex->exchange_req = dpp_pkex_build_exchange_req(pkex);
+ if (!pkex->exchange_req)
+ goto fail;
+ return pkex;
+fail:
+ dpp_pkex_free(pkex);
+ return NULL;
+}
+
+
+struct dpp_pkex * dpp_pkex_rx_exchange_req(struct dpp_bootstrap_info *bi,
+ const u8 *own_mac,
+ const u8 *peer_mac,
+ const char *identifier,
+ const char *code,
+ const u8 *buf, size_t len)
+{
+ const u8 *attr_group, *attr_id, *attr_key;
+ u16 attr_group_len, attr_id_len, attr_key_len;
+ const struct dpp_curve_params *curve = bi->curve;
+ u16 ike_group;
+ struct dpp_pkex *pkex = NULL;
+ EC_POINT *Qi = NULL, *Qr = NULL, *M = NULL, *X = NULL, *N = NULL;
+ BN_CTX *bnctx = NULL;
+ const EC_GROUP *group;
+ BIGNUM *Mx = NULL, *My = NULL;
+ EC_KEY *Y_ec = NULL, *X_ec = NULL;;
+ const EC_POINT *Y_point;
+ BIGNUM *Nx = NULL, *Ny = NULL;
+ struct wpabuf *msg = NULL;
+ size_t attr_len;
+ int num_bytes, offset;
+
+ attr_id = dpp_get_attr(buf, len, DPP_ATTR_CODE_IDENTIFIER,
+ &attr_id_len);
+ if (!attr_id && identifier) {
+ wpa_printf(MSG_DEBUG,
+ "DPP: No PKEX code identifier received, but expected one");
+ return NULL;
+ }
+ if (attr_id && identifier &&
+ (os_strlen(identifier) != attr_id_len ||
+ os_memcmp(identifier, attr_id, attr_id_len) != 0)) {
+ wpa_printf(MSG_DEBUG, "DPP: PKEX code identifier mismatch");
+ return NULL;
+ }
+
+ attr_group = dpp_get_attr(buf, len, DPP_ATTR_FINITE_CYCLIC_GROUP,
+ &attr_group_len);
+ if (!attr_group || attr_group_len != 2) {
+ wpa_printf(MSG_DEBUG,
+ "DPP: Missing or invalid Finite Cyclic Group attribute");
+ return NULL;
+ }
+ ike_group = WPA_GET_LE16(attr_group);
+ if (ike_group != curve->ike_group) {
+ wpa_printf(MSG_DEBUG,
+ "DPP: Mismatching PKEX curve: peer=%u own=%u",
+ ike_group, curve->ike_group);
+ /* TODO: error response with suggested curve:
+ * DPP Status, group */
+ return NULL;
+ }
+
+ /* M in Encrypted Key attribute */
+ attr_key = dpp_get_attr(buf, len, DPP_ATTR_ENCRYPTED_KEY,
+ &attr_key_len);
+ if (!attr_key || attr_key_len & 0x01 || attr_key_len < 2 ||
+ attr_key_len / 2 > DPP_MAX_SHARED_SECRET_LEN) {
+ wpa_printf(MSG_DEBUG, "DPP: Missing Encrypted Key attribute");
+ return NULL;
+ }
+
+ /* Qi = H(MAC-Initiator | [identifier |] code) * Pi */
+ bnctx = BN_CTX_new();
+ if (!bnctx)
+ goto fail;
+ Qi = dpp_pkex_derive_Qi(curve, peer_mac, code, identifier, bnctx,
+ &group);
+ if (!Qi)
+ goto fail;
+
+ /* X' = M - Qi */
+ X = EC_POINT_new(group);
+ M = EC_POINT_new(group);
+ Mx = BN_bin2bn(attr_key, attr_key_len / 2, NULL);
+ My = BN_bin2bn(attr_key + attr_key_len / 2, attr_key_len / 2, NULL);
+ if (!X || !M || !Mx || !My ||
+ EC_POINT_set_affine_coordinates_GFp(group, M, Mx, My, bnctx) != 1 ||
+ EC_POINT_is_at_infinity(group, M) ||
+ !EC_POINT_is_on_curve(group, M, bnctx) ||
+ EC_POINT_invert(group, Qi, bnctx) != 1 ||
+ EC_POINT_add(group, X, M, Qi, bnctx) != 1 ||
+ EC_POINT_is_at_infinity(group, X) ||
+ !EC_POINT_is_on_curve(group, X, bnctx))
+ goto fail;
+
+ pkex = os_zalloc(sizeof(*pkex));
+ if (!pkex)
+ goto fail;
+ pkex->own_bi = bi;
+ os_memcpy(pkex->own_mac, own_mac, ETH_ALEN);
+ os_memcpy(pkex->peer_mac, peer_mac, ETH_ALEN);
+ if (identifier) {
+ pkex->identifier = os_strdup(identifier);
+ if (!pkex->identifier)
+ goto fail;
+ }
+ pkex->code = os_strdup(code);
+ if (!pkex->code)
+ goto fail;
+
+ os_memcpy(pkex->Mx, attr_key, attr_key_len / 2);
+
+ X_ec = EC_KEY_new();
+ if (!X_ec ||
+ EC_KEY_set_group(X_ec, group) != 1 ||
+ EC_KEY_set_public_key(X_ec, X) != 1)
+ goto fail;
+ pkex->x = EVP_PKEY_new();
+ if (!pkex->x ||
+ EVP_PKEY_set1_EC_KEY(pkex->x, X_ec) != 1)
+ goto fail;
+
+ /* Qr = H(MAC-Responder | | [identifier | ] code) * Pr */
+ Qr = dpp_pkex_derive_Qr(curve, own_mac, code, identifier, bnctx, NULL);
+ if (!Qr)
+ goto fail;
+
+ /* Generate a random ephemeral keypair y/Y */
+ pkex->y = dpp_gen_keypair(curve);
+ if (!pkex->y)
+ goto fail;
+
+ /* N = Y + Qr */
+ Y_ec = EVP_PKEY_get1_EC_KEY(pkex->y);
+ if (!Y_ec)
+ goto fail;
+ Y_point = EC_KEY_get0_public_key(Y_ec);
+ if (!Y_point)
+ goto fail;
+ N = EC_POINT_new(group);
+ Nx = BN_new();
+ Ny = BN_new();
+ if (!N || !Nx || !Ny ||
+ EC_POINT_add(group, N, Y_point, Qr, bnctx) != 1 ||
+ EC_POINT_get_affine_coordinates_GFp(group, N, Nx, Ny, bnctx) != 1)
+ goto fail;
+
+ /* Initiator -> Responder: DPP Status, [identifier,] N */
+ attr_len = 4 + 1;
+ if (identifier)
+ attr_len += 4 + os_strlen(identifier);
+ attr_len += 4 + 2 * curve->prime_len;
+ msg = dpp_alloc_msg(DPP_PA_PKEX_EXCHANGE_RESP, attr_len);
+ if (!msg)
+ goto fail;
+
+ /* DPP Status */
+ wpabuf_put_le16(msg, DPP_ATTR_STATUS);
+ wpabuf_put_le16(msg, 1);
+ wpabuf_put_u8(msg, DPP_STATUS_OK);
+
+ /* Code Identifier attribute */
+ if (pkex->identifier) {
+ wpabuf_put_le16(msg, DPP_ATTR_CODE_IDENTIFIER);
+ wpabuf_put_le16(msg, os_strlen(pkex->identifier));
+ wpabuf_put_str(msg, pkex->identifier);
+ }
+
+ /* N in Encrypted Key attribute */
+ wpabuf_put_le16(msg, DPP_ATTR_ENCRYPTED_KEY);
+ wpabuf_put_le16(msg, 2 * curve->prime_len);
+
+ num_bytes = BN_num_bytes(Nx);
+ if ((size_t) num_bytes > curve->prime_len)
+ goto fail;
+ if (curve->prime_len > (size_t) num_bytes)
+ offset = curve->prime_len - num_bytes;
+ else
+ offset = 0;
+ os_memset(wpabuf_put(msg, offset), 0, offset);
+ BN_bn2bin(Nx, wpabuf_put(msg, num_bytes));
+ os_memset(pkex->Nx, 0, offset);
+ BN_bn2bin(Nx, pkex->Nx + offset);
+
+ num_bytes = BN_num_bytes(Ny);
+ if ((size_t) num_bytes > curve->prime_len)
+ goto fail;
+ if (curve->prime_len > (size_t) num_bytes)
+ offset = curve->prime_len - num_bytes;
+ else
+ offset = 0;
+ os_memset(wpabuf_put(msg, offset), 0, offset);
+ BN_bn2bin(Ny, wpabuf_put(msg, num_bytes));
+
+ pkex->exchange_resp = msg;
+ msg = NULL;
+ pkex->exchange_done = 1;
+
+out:
+ wpabuf_free(msg);
+ BN_CTX_free(bnctx);
+ EC_POINT_free(Qi);
+ EC_POINT_free(Qr);
+ BN_free(Mx);
+ BN_free(My);
+ BN_free(Nx);
+ BN_free(Ny);
+ EC_POINT_free(M);
+ EC_POINT_free(N);
+ EC_POINT_free(X);
+ EC_KEY_free(X_ec);
+ EC_KEY_free(Y_ec);
+ return pkex;
+fail:
+ wpa_printf(MSG_DEBUG, "DPP: PKEX Exchange Request processing faileed");
+ dpp_pkex_free(pkex);
+ pkex = NULL;
+ goto out;
+}
+
+
+static int dpp_pkex_derive_z(const u8 *mac_init, const u8 *mac_resp,
+ const u8 *Mx, size_t Mx_len,
+ const u8 *Nx, size_t Nx_len,
+ const char *code,
+ const u8 *Zx, size_t Zx_len,
+ u8 *z, unsigned int hash_len)
+{
+ u8 salt[DPP_MAX_HASH_LEN], prk[DPP_MAX_HASH_LEN];
+ int res;
+ u8 *info, *pos;
+ size_t info_len;
+
+ /* z = HKDF(<>, MAC-Initiator | MAC-Responder | M.x | N.x | code, Z.x)
+ */
+
+ /* HKDF-Extract(<>, IKM=Z.x) */
+ os_memset(salt, 0, hash_len);
+ if (dpp_hmac(hash_len, salt, hash_len, Zx, Zx_len, prk) < 0)
+ return -1;
+ wpa_hexdump_key(MSG_DEBUG, "DPP: PRK = HKDF-Extract(<>, IKM)",
+ prk, hash_len);
+ info_len = 2 * ETH_ALEN + Mx_len + Nx_len + os_strlen(code);
+ info = os_malloc(info_len);
+ if (!info)
+ return -1;
+ pos = info;
+ os_memcpy(pos, mac_init, ETH_ALEN);
+ pos += ETH_ALEN;
+ os_memcpy(pos, mac_resp, ETH_ALEN);
+ pos += ETH_ALEN;
+ os_memcpy(pos, Mx, Mx_len);
+ pos += Mx_len;
+ os_memcpy(pos, Nx, Nx_len);
+ pos += Nx_len;
+ os_memcpy(pos, code, os_strlen(code));
+
+ /* HKDF-Expand(PRK, info, L) */
+ if (hash_len == 32)
+ res = hmac_sha256_kdf(prk, hash_len, NULL, info, info_len,
+ z, hash_len);
+ else if (hash_len == 48)
+ res = hmac_sha384_kdf(prk, hash_len, NULL, info, info_len,
+ z, hash_len);
+ else if (hash_len == 64)
+ res = hmac_sha512_kdf(prk, hash_len, NULL, info, info_len,
+ z, hash_len);
+ else
+ res = -1;
+ os_free(info);
+ os_memset(prk, 0, hash_len);
+ if (res < 0)
+ return -1;
+
+ wpa_hexdump_key(MSG_DEBUG, "DPP: z = HKDF-Expand(PRK, info, L)",
+ z, hash_len);
+ return 0;
+}
+
+
+struct wpabuf * dpp_pkex_rx_exchange_resp(struct dpp_pkex *pkex,
+ const u8 *buf, size_t buflen)
+{
+ const u8 *attr_status, *attr_id, *attr_key;
+ u16 attr_status_len, attr_id_len, attr_key_len;
+ const EC_GROUP *group;
+ BN_CTX *bnctx = NULL;
+ size_t clear_len;
+ struct wpabuf *clear = NULL;
+ u8 *wrapped;
+ struct wpabuf *msg = NULL, *A_pub = NULL, *X_pub = NULL, *Y_pub = NULL;
+ const struct dpp_curve_params *curve = pkex->own_bi->curve;
+ EC_POINT *Qr = NULL, *Y = NULL, *N = NULL;
+ BIGNUM *Nx = NULL, *Ny = NULL;
+ EVP_PKEY_CTX *ctx = NULL;
+ EC_KEY *Y_ec = NULL;
+ size_t Jx_len, Zx_len;
+ u8 Jx[DPP_MAX_SHARED_SECRET_LEN], Zx[DPP_MAX_SHARED_SECRET_LEN];
+ const u8 *addr[4];
+ size_t len[4];
+ u8 u[DPP_MAX_HASH_LEN];
+ u8 octet;
+
+ attr_status = dpp_get_attr(buf, buflen, DPP_ATTR_STATUS,
+ &attr_status_len);
+ if (!attr_status || attr_status_len != 1) {
+ wpa_printf(MSG_DEBUG, "DPP: No DPP Status attribute");
+ return NULL;
+ }
+ wpa_printf(MSG_DEBUG, "DPP: Status %u", attr_status[0]);
+ if (attr_status[0] != DPP_STATUS_OK) {
+ wpa_printf(MSG_DEBUG, "DPP: PKEX failed");
+ return NULL;
+ }
+
+ attr_id = dpp_get_attr(buf, buflen, DPP_ATTR_CODE_IDENTIFIER,
+ &attr_id_len);
+ if (!attr_id && pkex->identifier) {
+ wpa_printf(MSG_DEBUG,
+ "DPP: No PKEX code identifier received, but expected one");
+ return NULL;
+ }
+ if (attr_id && pkex->identifier &&
+ (os_strlen(pkex->identifier) != attr_id_len ||
+ os_memcmp(pkex->identifier, attr_id, attr_id_len) != 0)) {
+ wpa_printf(MSG_DEBUG, "DPP: PKEX code identifier mismatch");
+ return NULL;
+ }
+
+ /* N in Encrypted Key attribute */
+ attr_key = dpp_get_attr(buf, buflen, DPP_ATTR_ENCRYPTED_KEY,
+ &attr_key_len);
+ if (!attr_key || attr_key_len & 0x01 || attr_key_len < 2) {
+ wpa_printf(MSG_DEBUG, "DPP: Missing Encrypted Key attribute");
+ return NULL;
+ }
+
+ /* Qr = H(MAC-Responder | [identifier |] code) * Pr */
+ bnctx = BN_CTX_new();
+ if (!bnctx)
+ goto fail;
+ Qr = dpp_pkex_derive_Qr(curve, pkex->peer_mac, pkex->code,
+ pkex->identifier, bnctx, &group);
+ if (!Qr)
+ goto fail;
+
+ /* Y' = N - Qr */
+ Y = EC_POINT_new(group);
+ N = EC_POINT_new(group);
+ Nx = BN_bin2bn(attr_key, attr_key_len / 2, NULL);
+ Ny = BN_bin2bn(attr_key + attr_key_len / 2, attr_key_len / 2, NULL);
+ if (!Y || !N || !Nx || !Ny ||
+ EC_POINT_set_affine_coordinates_GFp(group, N, Nx, Ny, bnctx) != 1 ||
+ EC_POINT_is_at_infinity(group, N) ||
+ !EC_POINT_is_on_curve(group, N, bnctx) ||
+ EC_POINT_invert(group, Qr, bnctx) != 1 ||
+ EC_POINT_add(group, Y, N, Qr, bnctx) != 1 ||
+ EC_POINT_is_at_infinity(group, Y) ||
+ !EC_POINT_is_on_curve(group, Y, bnctx))
+ goto fail;
+
+ pkex->exchange_done = 1;
+
+ /* ECDH: J = a * Y’ */
+ Y_ec = EC_KEY_new();
+ if (!Y_ec ||
+ EC_KEY_set_group(Y_ec, group) != 1 ||
+ EC_KEY_set_public_key(Y_ec, Y) != 1)
+ goto fail;
+ pkex->y = EVP_PKEY_new();
+ if (!pkex->y ||
+ EVP_PKEY_set1_EC_KEY(pkex->y, Y_ec) != 1)
+ goto fail;
+ ctx = EVP_PKEY_CTX_new(pkex->own_bi->pubkey, NULL);
+ if (!ctx ||
+ EVP_PKEY_derive_init(ctx) != 1 ||
+ EVP_PKEY_derive_set_peer(ctx, pkex->y) != 1 ||
+ EVP_PKEY_derive(ctx, NULL, &Jx_len) != 1 ||
+ Jx_len > DPP_MAX_SHARED_SECRET_LEN ||
+ EVP_PKEY_derive(ctx, Jx, &Jx_len) != 1) {
+ wpa_printf(MSG_ERROR,
+ "DPP: Failed to derive ECDH shared secret: %s",
+ ERR_error_string(ERR_get_error(), NULL));
+ goto fail;
+ }
+
+ wpa_hexdump_key(MSG_DEBUG, "DPP: ECDH shared secret (J.x)",
+ Jx, Jx_len);
+
+ /* u = HMAC(J.x, MAC-Initiator | A.x | Y’.x | X.x ) */
+ A_pub = dpp_get_pubkey_point(pkex->own_bi->pubkey, 0);
+ Y_pub = dpp_get_pubkey_point(pkex->y, 0);
+ X_pub = dpp_get_pubkey_point(pkex->x, 0);
+ if (!A_pub || !Y_pub || !X_pub)
+ goto fail;
+ addr[0] = pkex->own_mac;
+ len[0] = ETH_ALEN;
+ addr[1] = wpabuf_head(A_pub);
+ len[1] = wpabuf_len(A_pub) / 2;
+ addr[2] = wpabuf_head(Y_pub);
+ len[2] = wpabuf_len(Y_pub) / 2;
+ addr[3] = wpabuf_head(X_pub);
+ len[3] = wpabuf_len(X_pub) / 2;
+ if (dpp_hmac_vector(curve->hash_len, Jx, Jx_len, 4, addr, len, u) < 0)
+ goto fail;
+ wpa_hexdump(MSG_DEBUG, "DPP: u", u, curve->hash_len);
+
+ /* Z = x * Y’ */
+ EVP_PKEY_CTX_free(ctx);
+ ctx = EVP_PKEY_CTX_new(pkex->x, NULL);
+ if (!ctx ||
+ EVP_PKEY_derive_init(ctx) != 1 ||
+ EVP_PKEY_derive_set_peer(ctx, pkex->y) != 1 ||
+ EVP_PKEY_derive(ctx, NULL, &Zx_len) != 1 ||
+ Zx_len > DPP_MAX_SHARED_SECRET_LEN ||
+ EVP_PKEY_derive(ctx, Zx, &Zx_len) != 1) {
+ wpa_printf(MSG_ERROR,
+ "DPP: Failed to derive ECDH shared secret: %s",
+ ERR_error_string(ERR_get_error(), NULL));
+ goto fail;
+ }
+
+ wpa_hexdump_key(MSG_DEBUG, "DPP: ECDH shared secret (Z.x)",
+ Zx, Zx_len);
+
+ /* z = HKDF(<>, MAC-Initiator | MAC-Responder | M.x | N.x | code, Z.x)
+ */
+ if (dpp_pkex_derive_z(pkex->own_mac, pkex->peer_mac,
+ pkex->Mx, curve->prime_len,
+ attr_key /* N.x */, attr_key_len / 2, pkex->code,
+ Zx, Zx_len, pkex->z, curve->hash_len) < 0)
+ goto fail;
+
+ /* {A, u, [bootstrapping info]}z */
+ clear_len = 4 + 2 * curve->prime_len + 4 + curve->hash_len;
+ clear = wpabuf_alloc(clear_len);
+ msg = dpp_alloc_msg(DPP_PA_PKEX_COMMIT_REVEAL_REQ,
+ 4 + clear_len + AES_BLOCK_SIZE);
+ if (!clear || !msg)
+ goto fail;
+
+ /* A in Bootstrap Key attribute */
+ wpabuf_put_le16(clear, DPP_ATTR_BOOTSTRAP_KEY);
+ wpabuf_put_le16(clear, wpabuf_len(A_pub));
+ wpabuf_put_buf(clear, A_pub);
+
+ /* u in I-Auth tag attribute */
+ wpabuf_put_le16(clear, DPP_ATTR_I_AUTH_TAG);
+ wpabuf_put_le16(clear, curve->hash_len);
+ wpabuf_put_data(clear, u, curve->hash_len);
+
+ octet = 0;
+ addr[0] = &octet;
+ len[0] = sizeof(octet);
+ wpa_hexdump(MSG_DEBUG, "DDP: AES-SIV AD", addr[0], len[0]);
+
+ wpabuf_put_le16(msg, DPP_ATTR_WRAPPED_DATA);
+ wpabuf_put_le16(msg, wpabuf_len(clear) + AES_BLOCK_SIZE);
+ wrapped = wpabuf_put(msg, wpabuf_len(clear) + AES_BLOCK_SIZE);
+
+ wpa_hexdump_buf(MSG_DEBUG, "DPP: AES-SIV cleartext", clear);
+ if (aes_siv_encrypt(pkex->z, curve->hash_len,
+ wpabuf_head(clear), wpabuf_len(clear),
+ 1, addr, len, wrapped) < 0)
+ goto fail;
+ wpa_hexdump(MSG_DEBUG, "DPP: AES-SIV ciphertext",
+ wrapped, wpabuf_len(clear) + AES_BLOCK_SIZE);
+
+out:
+ wpabuf_free(clear);
+ wpabuf_free(A_pub);
+ wpabuf_free(X_pub);
+ wpabuf_free(Y_pub);
+ EC_POINT_free(Qr);
+ EC_POINT_free(Y);
+ EC_POINT_free(N);
+ BN_free(Nx);
+ BN_free(Ny);
+ EC_KEY_free(Y_ec);
+ EVP_PKEY_CTX_free(ctx);
+ BN_CTX_free(bnctx);
+ return msg;
+fail:
+ wpa_printf(MSG_DEBUG, "DPP: PKEX Exchange Response processing faileed");
+ wpabuf_free(msg);
+ msg = NULL;
+ goto out;
+}
+
+
+struct wpabuf * dpp_pkex_rx_commit_reveal_req(struct dpp_pkex *pkex,
+ const u8 *buf, size_t buflen)
+{
+ const struct dpp_curve_params *curve = pkex->own_bi->curve;
+ EVP_PKEY_CTX *ctx;
+ size_t Jx_len, Zx_len, Lx_len;
+ u8 Jx[DPP_MAX_SHARED_SECRET_LEN], Zx[DPP_MAX_SHARED_SECRET_LEN];
+ u8 Lx[DPP_MAX_SHARED_SECRET_LEN];
+ const u8 *wrapped_data, *b_key, *peer_u;
+ u16 wrapped_data_len, b_key_len, peer_u_len = 0;
+ const u8 *addr[4];
+ size_t len[4];
+ u8 octet;
+ u8 *unwrapped = NULL;
+ size_t unwrapped_len = 0;
+ struct wpabuf *msg = NULL, *A_pub = NULL, *X_pub = NULL, *Y_pub = NULL;
+ struct wpabuf *B_pub = NULL;
+ u8 u[DPP_MAX_HASH_LEN], v[DPP_MAX_HASH_LEN];
+ size_t clear_len;
+ struct wpabuf *clear = NULL;
+ u8 *wrapped;
+
+ /* Z = y * X' */
+ ctx = EVP_PKEY_CTX_new(pkex->y, NULL);
+ if (!ctx ||
+ EVP_PKEY_derive_init(ctx) != 1 ||
+ EVP_PKEY_derive_set_peer(ctx, pkex->x) != 1 ||
+ EVP_PKEY_derive(ctx, NULL, &Zx_len) != 1 ||
+ Zx_len > DPP_MAX_SHARED_SECRET_LEN ||
+ EVP_PKEY_derive(ctx, Zx, &Zx_len) != 1) {
+ wpa_printf(MSG_ERROR,
+ "DPP: Failed to derive ECDH shared secret: %s",
+ ERR_error_string(ERR_get_error(), NULL));
+ goto fail;
+ }
+
+ wpa_hexdump_key(MSG_DEBUG, "DPP: ECDH shared secret (Z.x)",
+ Zx, Zx_len);
+
+ /* z = HKDF(<>, MAC-Initiator | MAC-Responder | M.x | N.x | code, Z.x)
+ */
+ if (dpp_pkex_derive_z(pkex->peer_mac, pkex->own_mac,
+ pkex->Mx, curve->prime_len,
+ pkex->Nx, curve->prime_len, pkex->code,
+ Zx, Zx_len, pkex->z, curve->hash_len) < 0)
+ goto fail;
+
+ wrapped_data = dpp_get_attr(buf, buflen, DPP_ATTR_WRAPPED_DATA,
+ &wrapped_data_len);
+ if (!wrapped_data || wrapped_data_len < AES_BLOCK_SIZE) {
+ wpa_printf(MSG_DEBUG,
+ "DPP: Missing or invalid required Wrapped data attribute");
+ goto fail;
+ }
+
+ wpa_hexdump(MSG_DEBUG, "DPP: AES-SIV ciphertext",
+ wrapped_data, wrapped_data_len);
+ unwrapped_len = wrapped_data_len - AES_BLOCK_SIZE;
+ unwrapped = os_malloc(unwrapped_len);
+ if (!unwrapped)
+ goto fail;
+
+ octet = 0;
+ addr[0] = &octet;
+ len[0] = sizeof(octet);
+ wpa_hexdump(MSG_DEBUG, "DDP: AES-SIV AD", addr[0], len[0]);
+
+ if (aes_siv_decrypt(pkex->z, curve->hash_len,
+ wrapped_data, wrapped_data_len,
+ 1, addr, len, unwrapped) < 0) {
+ wpa_printf(MSG_DEBUG, "DPP: AES-SIV decryption failed");
+ goto fail;
+ }
+ wpa_hexdump(MSG_DEBUG, "DPP: AES-SIV cleartext",
+ unwrapped, unwrapped_len);
+
+ if (dpp_check_attrs(unwrapped, unwrapped_len) < 0) {
+ wpa_printf(MSG_DEBUG,
+ "DPP: Invalid attribute in unwrapped data");
+ goto fail;
+ }
+
+ b_key = dpp_get_attr(unwrapped, unwrapped_len, DPP_ATTR_BOOTSTRAP_KEY,
+ &b_key_len);
+ if (!b_key || b_key_len != 2 * curve->prime_len) {
+ wpa_printf(MSG_DEBUG,
+ "DPP: No valid peer bootstrapping key found");
+ goto fail;
+ }
+ pkex->peer_bootstrap_key = dpp_set_pubkey_point(pkex->x, b_key,
+ b_key_len);
+ if (!pkex->peer_bootstrap_key)
+ goto fail;
+ dpp_debug_print_key("DPP: Peer bootstrap public key",
+ pkex->peer_bootstrap_key);
+
+ /* ECDH: J' = y * A' */
+ EVP_PKEY_CTX_free(ctx);
+ ctx = EVP_PKEY_CTX_new(pkex->y, NULL);
+ if (!ctx ||
+ EVP_PKEY_derive_init(ctx) != 1 ||
+ EVP_PKEY_derive_set_peer(ctx, pkex->peer_bootstrap_key) != 1 ||
+ EVP_PKEY_derive(ctx, NULL, &Jx_len) != 1 ||
+ Jx_len > DPP_MAX_SHARED_SECRET_LEN ||
+ EVP_PKEY_derive(ctx, Jx, &Jx_len) != 1) {
+ wpa_printf(MSG_ERROR,
+ "DPP: Failed to derive ECDH shared secret: %s",
+ ERR_error_string(ERR_get_error(), NULL));
+ goto fail;
+ }
+
+ wpa_hexdump_key(MSG_DEBUG, "DPP: ECDH shared secret (J.x)",
+ Jx, Jx_len);
+
+ /* u' = HMAC(J'.x, MAC-Initiator | A'.x | Y.x | X'.x) */
+ A_pub = dpp_get_pubkey_point(pkex->peer_bootstrap_key, 0);
+ Y_pub = dpp_get_pubkey_point(pkex->y, 0);
+ X_pub = dpp_get_pubkey_point(pkex->x, 0);
+ if (!A_pub || !Y_pub || !X_pub)
+ goto fail;
+ addr[0] = pkex->peer_mac;
+ len[0] = ETH_ALEN;
+ addr[1] = wpabuf_head(A_pub);
+ len[1] = wpabuf_len(A_pub) / 2;
+ addr[2] = wpabuf_head(Y_pub);
+ len[2] = wpabuf_len(Y_pub) / 2;
+ addr[3] = wpabuf_head(X_pub);
+ len[3] = wpabuf_len(X_pub) / 2;
+ if (dpp_hmac_vector(curve->hash_len, Jx, Jx_len, 4, addr, len, u) < 0)
+ goto fail;
+
+ peer_u = dpp_get_attr(unwrapped, unwrapped_len, DPP_ATTR_I_AUTH_TAG,
+ &peer_u_len);
+ if (!peer_u || peer_u_len != curve->hash_len ||
+ os_memcmp(peer_u, u, curve->hash_len) != 0) {
+ wpa_printf(MSG_DEBUG, "DPP: No valid u (I-Auth tag) found");
+ wpa_hexdump(MSG_DEBUG, "DPP: Calculated u'",
+ u, curve->hash_len);
+ wpa_hexdump(MSG_DEBUG, "DPP: Received u", peer_u, peer_u_len);
+ goto fail;
+ }
+ wpa_printf(MSG_DEBUG, "DPP: Valid u (I-Auth tag) received");
+
+ /* ECDH: L = b * X' */
+ EVP_PKEY_CTX_free(ctx);
+ ctx = EVP_PKEY_CTX_new(pkex->own_bi->pubkey, NULL);
+ if (!ctx ||
+ EVP_PKEY_derive_init(ctx) != 1 ||
+ EVP_PKEY_derive_set_peer(ctx, pkex->x) != 1 ||
+ EVP_PKEY_derive(ctx, NULL, &Lx_len) != 1 ||
+ Lx_len > DPP_MAX_SHARED_SECRET_LEN ||
+ EVP_PKEY_derive(ctx, Lx, &Lx_len) != 1) {
+ wpa_printf(MSG_ERROR,
+ "DPP: Failed to derive ECDH shared secret: %s",
+ ERR_error_string(ERR_get_error(), NULL));
+ goto fail;
+ }
+
+ wpa_hexdump_key(MSG_DEBUG, "DPP: ECDH shared secret (L.x)",
+ Lx, Lx_len);
+
+ /* v = HMAC(L.x, MAC-Responder | B.x | X'.x | Y.x) */
+ B_pub = dpp_get_pubkey_point(pkex->own_bi->pubkey, 0);
+ if (!B_pub)
+ goto fail;
+ addr[0] = pkex->own_mac;
+ len[0] = ETH_ALEN;
+ addr[1] = wpabuf_head(B_pub);
+ len[1] = wpabuf_len(B_pub) / 2;
+ addr[2] = wpabuf_head(X_pub);
+ len[2] = wpabuf_len(X_pub) / 2;
+ addr[3] = wpabuf_head(Y_pub);
+ len[3] = wpabuf_len(Y_pub) / 2;
+ if (dpp_hmac_vector(curve->hash_len, Lx, Lx_len, 4, addr, len, v) < 0)
+ goto fail;
+ wpa_hexdump(MSG_DEBUG, "DPP: v", v, curve->hash_len);
+
+ /* {B, v [bootstrapping info]}z */
+ clear_len = 4 + 2 * curve->prime_len + 4 + curve->hash_len;
+ clear = wpabuf_alloc(clear_len);
+ msg = dpp_alloc_msg(DPP_PA_PKEX_COMMIT_REVEAL_RESP,
+ 4 + clear_len + AES_BLOCK_SIZE);
+ if (!clear || !msg)
+ goto fail;
+
+ /* A in Bootstrap Key attribute */
+ wpabuf_put_le16(clear, DPP_ATTR_BOOTSTRAP_KEY);
+ wpabuf_put_le16(clear, wpabuf_len(B_pub));
+ wpabuf_put_buf(clear, B_pub);
+
+ /* v in R-Auth tag attribute */
+ wpabuf_put_le16(clear, DPP_ATTR_R_AUTH_TAG);
+ wpabuf_put_le16(clear, curve->hash_len);
+ wpabuf_put_data(clear, v, curve->hash_len);
+
+ octet = 1;
+ addr[0] = &octet;
+ len[0] = sizeof(octet);
+ wpa_hexdump(MSG_DEBUG, "DDP: AES-SIV AD", addr[0], len[0]);
+
+ wpabuf_put_le16(msg, DPP_ATTR_WRAPPED_DATA);
+ wpabuf_put_le16(msg, wpabuf_len(clear) + AES_BLOCK_SIZE);
+ wrapped = wpabuf_put(msg, wpabuf_len(clear) + AES_BLOCK_SIZE);
+
+ wpa_hexdump_buf(MSG_DEBUG, "DPP: AES-SIV cleartext", clear);
+ if (aes_siv_encrypt(pkex->z, curve->hash_len,
+ wpabuf_head(clear), wpabuf_len(clear),
+ 1, addr, len, wrapped) < 0)
+ goto fail;
+ wpa_hexdump(MSG_DEBUG, "DPP: AES-SIV ciphertext",
+ wrapped, wpabuf_len(clear) + AES_BLOCK_SIZE);
+out:
+ EVP_PKEY_CTX_free(ctx);
+ os_free(unwrapped);
+ wpabuf_free(A_pub);
+ wpabuf_free(B_pub);
+ wpabuf_free(X_pub);
+ wpabuf_free(Y_pub);
+ wpabuf_free(clear);
+ return msg;
+fail:
+ wpabuf_free(msg);
+ msg = NULL;
+ goto out;
+}
+
+
+int dpp_pkex_rx_commit_reveal_resp(struct dpp_pkex *pkex,
+ const u8 *buf, size_t buflen)
+{
+ const struct dpp_curve_params *curve = pkex->own_bi->curve;
+ const u8 *wrapped_data, *b_key, *peer_v;
+ u16 wrapped_data_len, b_key_len, peer_v_len = 0;
+ const u8 *addr[4];
+ size_t len[4];
+ u8 octet;
+ u8 *unwrapped = NULL;
+ size_t unwrapped_len = 0;
+ int ret = -1;
+ u8 v[DPP_MAX_HASH_LEN];
+ size_t Lx_len;
+ u8 Lx[DPP_MAX_SHARED_SECRET_LEN];
+ EVP_PKEY_CTX *ctx = NULL;
+ struct wpabuf *B_pub = NULL, *X_pub = NULL, *Y_pub = NULL;
+
+ wrapped_data = dpp_get_attr(buf, buflen, DPP_ATTR_WRAPPED_DATA,
+ &wrapped_data_len);
+ if (!wrapped_data || wrapped_data_len < AES_BLOCK_SIZE) {
+ wpa_printf(MSG_DEBUG,
+ "DPP: Missing or invalid required Wrapped data attribute");
+ goto fail;
+ }
+
+ wpa_hexdump(MSG_DEBUG, "DPP: AES-SIV ciphertext",
+ wrapped_data, wrapped_data_len);
+ unwrapped_len = wrapped_data_len - AES_BLOCK_SIZE;
+ unwrapped = os_malloc(unwrapped_len);
+ if (!unwrapped)
+ goto fail;
+
+ octet = 1;
+ addr[0] = &octet;
+ len[0] = sizeof(octet);
+ wpa_hexdump(MSG_DEBUG, "DDP: AES-SIV AD", addr[0], len[0]);
+
+ if (aes_siv_decrypt(pkex->z, curve->hash_len,
+ wrapped_data, wrapped_data_len,
+ 1, addr, len, unwrapped) < 0) {
+ wpa_printf(MSG_DEBUG, "DPP: AES-SIV decryption failed");
+ goto fail;
+ }
+ wpa_hexdump(MSG_DEBUG, "DPP: AES-SIV cleartext",
+ unwrapped, unwrapped_len);
+
+ if (dpp_check_attrs(unwrapped, unwrapped_len) < 0) {
+ wpa_printf(MSG_DEBUG,
+ "DPP: Invalid attribute in unwrapped data");
+ goto fail;
+ }
+
+ b_key = dpp_get_attr(unwrapped, unwrapped_len, DPP_ATTR_BOOTSTRAP_KEY,
+ &b_key_len);
+ if (!b_key || b_key_len != 2 * curve->prime_len) {
+ wpa_printf(MSG_DEBUG,
+ "DPP: No valid peer bootstrapping key found");
+ goto fail;
+ }
+ pkex->peer_bootstrap_key = dpp_set_pubkey_point(pkex->x, b_key,
+ b_key_len);
+ if (!pkex->peer_bootstrap_key)
+ goto fail;
+ dpp_debug_print_key("DPP: Peer bootstrap public key",
+ pkex->peer_bootstrap_key);
+
+ /* ECDH: L' = x * B' */
+ ctx = EVP_PKEY_CTX_new(pkex->x, NULL);
+ if (!ctx ||
+ EVP_PKEY_derive_init(ctx) != 1 ||
+ EVP_PKEY_derive_set_peer(ctx, pkex->peer_bootstrap_key) != 1 ||
+ EVP_PKEY_derive(ctx, NULL, &Lx_len) != 1 ||
+ Lx_len > DPP_MAX_SHARED_SECRET_LEN ||
+ EVP_PKEY_derive(ctx, Lx, &Lx_len) != 1) {
+ wpa_printf(MSG_ERROR,
+ "DPP: Failed to derive ECDH shared secret: %s",
+ ERR_error_string(ERR_get_error(), NULL));
+ goto fail;
+ }
+
+ wpa_hexdump_key(MSG_DEBUG, "DPP: ECDH shared secret (L.x)",
+ Lx, Lx_len);
+
+ /* v' = HMAC(L.x, MAC-Responder | B'.x | X.x | Y'.x) */
+ B_pub = dpp_get_pubkey_point(pkex->peer_bootstrap_key, 0);
+ X_pub = dpp_get_pubkey_point(pkex->x, 0);
+ Y_pub = dpp_get_pubkey_point(pkex->y, 0);
+ if (!B_pub || !X_pub || !Y_pub)
+ goto fail;
+ addr[0] = pkex->peer_mac;
+ len[0] = ETH_ALEN;
+ addr[1] = wpabuf_head(B_pub);
+ len[1] = wpabuf_len(B_pub) / 2;
+ addr[2] = wpabuf_head(X_pub);
+ len[2] = wpabuf_len(X_pub) / 2;
+ addr[3] = wpabuf_head(Y_pub);
+ len[3] = wpabuf_len(Y_pub) / 2;
+ if (dpp_hmac_vector(curve->hash_len, Lx, Lx_len, 4, addr, len, v) < 0)
+ goto fail;
+
+ peer_v = dpp_get_attr(unwrapped, unwrapped_len, DPP_ATTR_R_AUTH_TAG,
+ &peer_v_len);
+ if (!peer_v || peer_v_len != curve->hash_len ||
+ os_memcmp(peer_v, v, curve->hash_len) != 0) {
+ wpa_printf(MSG_DEBUG, "DPP: No valid v (R-Auth tag) found");
+ wpa_hexdump(MSG_DEBUG, "DPP: Calculated v'",
+ v, curve->hash_len);
+ wpa_hexdump(MSG_DEBUG, "DPP: Received v", peer_v, peer_v_len);
+ goto fail;
+ }
+ wpa_printf(MSG_DEBUG, "DPP: Valid v (R-Auth tag) received");
+
+ ret = 0;
+out:
+ wpabuf_free(B_pub);
+ wpabuf_free(X_pub);
+ wpabuf_free(Y_pub);
+ EVP_PKEY_CTX_free(ctx);
+ os_free(unwrapped);
+ return ret;
+fail:
+ goto out;
+}
+
+
+void dpp_pkex_free(struct dpp_pkex *pkex)
+{
+ if (!pkex)
+ return;
+
+ os_free(pkex->identifier);
+ os_free(pkex->code);
+ EVP_PKEY_free(pkex->x);
+ EVP_PKEY_free(pkex->y);
+ EVP_PKEY_free(pkex->peer_bootstrap_key);
+ wpabuf_free(pkex->exchange_req);
+ wpabuf_free(pkex->exchange_resp);
+ os_free(pkex);
+}
projects / thirdparty / hostap.git / commitdiff
