Make tor-gencert create 2048 bit signing keys.

changes/bug10324

@@ -0,0 +1,2 @@
+  o Tool changes:
+    - Make tor-gencert create 2048 bit signing keys. Addresses ticket #10324.

src/tools/tor-gencert.c

@@ -34,7 +34,7 @@
 #include "address.h"
 
 #define IDENTITY_KEY_BITS 3072
-#define SIGNING_KEY_BITS 1024
+#define SIGNING_KEY_BITS 2048
 #define DEFAULT_LIFETIME 12
 
 /* These globals are set via command line options. */