andrzej-kaczmarek commented on a change in pull request #499: nimble/mesh:
Reject invalid remote public key
URL: https://github.com/apache/mynewt-nimble/pull/499#discussion_r297141147
##########
File path: nimble/host/src/ble_sm_alg.c
##########
@@ -418,6 +418,21 @@ ble_sm_alg_g2(uint8_t *u, uint8_t *v, uint8_t *x, uint8_t
*y,
return 0;
}
+int
+ble_sm_alg_valid_pub_key(uint8_t *peer_pub_key_x, uint8_t *peer_pub_key_y)
+{
+ uint8_t pk[64];
+
+ swap_buf(pk, peer_pub_key_x, 32);
+ swap_buf(&pk[32], peer_pub_key_y, 32);
+
+ if (uECC_valid_public_key(pk, &curve_secp256r1) < 0) {
+ return BLE_HS_EUNKNOWN;
Review comment:
BLE_HS_EINVAL
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