Initialize randomness in worker.cc

worker.cc

@@ -10,6 +10,7 @@ extern "C" {
 
 #include <NTL/ZZ_p.h>
 
+#include <fstream>
 #include <vector>
 #include <stdio.h>
 #include <errno.h>
@@ -286,6 +287,14 @@ static void controllerconn_event_cb(struct bufferevent *bev, short events,
 
 int worker_main(const char *controller_host, unsigned short controller_port)
 {
+    // Initialize the prng with some randomness from the kernel
+    unsigned char randbuf[1024];
+    ifstream urand("/dev/urandom");
+    urand.read((char *)randbuf, sizeof(randbuf));
+    urand.close();
+    ZZ randzz = ZZFromBytes(randbuf, sizeof(randbuf));
+    SetSeed(randzz);
+
     evthread_use_pthreads();
 
     signal(SIGPIPE, SIG_IGN);