diff --git a/mtproto-client.c b/mtproto-client.c
index a010d85..906efbe 100644
--- a/mtproto-client.c
+++ b/mtproto-client.c
@@ -98,7 +98,7 @@ double get_utime (int clock_id) {
   return res;
 }
 
-void do_rand (void *s, int l) {
+void secure_random (void *s, int l) {
   if (RAND_bytes (s, l) < 0) {
     if (allow_weak_random) {
       RAND_pseudo_bytes (s, l);
@@ -232,7 +232,7 @@ int rpc_send_message (struct connection *c, void *data, int len) {
 
 int send_req_pq_packet (struct connection *c) {
   assert (c_state == st_init);
-  do_rand (nonce, 16);
+  secure_random (nonce, 16);
   unenc_msg_header.out_msg_id = 0;
   clear_packet ();
   out_int (CODE_req_pq);
@@ -380,7 +380,7 @@ int process_respq_answer (struct connection *c, char *packet, int len) {
   //out_int (0x0501);  // q=5
   out_ints ((int *) nonce, 4);
   out_ints ((int *) server_nonce, 4);
-  do_rand (new_nonce, 32);
+  secure_random (new_nonce, 32);
   out_ints ((int *) new_nonce, 8);
   sha1 ((unsigned char *) (packet_buffer + 5), (packet_ptr - packet_buffer - 5) * 4, (unsigned char *) packet_buffer);
 
@@ -573,7 +573,7 @@ int process_dh_answer (struct connection *c, char *packet, int len) {
   BN_init (&dh_g);
   BN_set_word (&dh_g, g);
 
-  do_rand (s_power, 256);
+  secure_random (s_power, 256);
   BIGNUM *dh_power = BN_new ();
   assert (BN_bin2bn ((unsigned char *)s_power, 256, dh_power) == dh_power);
 
@@ -692,7 +692,7 @@ void init_enc_msg (struct session *S, int useful) {
 //  assert (DC->server_salt);
   enc_msg.server_salt = DC->server_salt;
   if (!S->session_id) {
-    do_rand (&S->session_id, 8);
+    secure_random (&S->session_id, 8);
   }
   enc_msg.session_id = S->session_id;
   //enc_msg.auth_key_id2 = auth_key_id;
diff --git a/mtproto-client.h b/mtproto-client.h
index 5f04dea..0782b7b 100644
--- a/mtproto-client.h
+++ b/mtproto-client.h
@@ -29,5 +29,5 @@ void work_update_binlog (void);
 int check_g (unsigned char p[256], BIGNUM *g);
 int check_g_bn (BIGNUM *p, BIGNUM *g);
 int check_DH_params (BIGNUM *p, int g);
-void do_rand (void *s, int l);
+void secure_random (void *s, int l);
 #endif
diff --git a/queries.c b/queries.c
index 3719de7..51ab012 100644
--- a/queries.c
+++ b/queries.c
@@ -2264,7 +2264,7 @@ void do_send_accept_encr_chat (struct secret_chat *E, unsigned char *random) {
   }
   if (ok) { return; } // Already generated key for this chat
   unsigned char random_here[256];
-  do_rand (random_here, 256);
+  secure_random (random_here, 256);
   for (i = 0; i < 256; i++) {
     random[i] ^= random_here[i];
   }