Add some more ed25519 key files to the seccomp sandbox list

Fixes bug 17675; bugfix on 0.2.7.3-alpha.

changes/bug17675

@@ -0,0 +1,4 @@
+  o Minor bugfixes (linux seccomp2 sandbox):
+    - Fix a crash when using offline master ed25519 keys with the
+      Linux seccomp2 sandbox enabled. Fixes bug 17675; bugfix on
+      0.2.7.3-alpha.

src/or/main.c

@@ -3171,6 +3171,9 @@ sandbox_init_filter(void)
                          ".tmp");
     OPEN_DATADIR2_SUFFIX("keys", "ed25519_master_id_public_key", ".tmp");
     OPEN_DATADIR2_SUFFIX("keys", "ed25519_signing_secret_key", ".tmp");
+    OPEN_DATADIR2_SUFFIX("keys", "ed25519_signing_secret_key_encrypted",
+                         ".tmp");
+    OPEN_DATADIR2_SUFFIX("keys", "ed25519_signing_public_key", ".tmp");
     OPEN_DATADIR2_SUFFIX("keys", "ed25519_signing_cert", ".tmp");
 
     OPEN_DATADIR2_SUFFIX("stats", "bridge-stats", ".tmp");