Index: head/sys/netinet/sctp_os_bsd.h
===================================================================
--- head/sys/netinet/sctp_os_bsd.h
+++ head/sys/netinet/sctp_os_bsd.h
@@ -445,7 +445,7 @@
 /*
  * SCTP AUTH
  */
-#define SCTP_READ_RANDOM(buf, len)	read_random(buf, len)
+#define SCTP_READ_RANDOM(buf, len)	arc4rand(buf, len, 0)
 
 /* map standard crypto API names */
 #define SCTP_SHA1_CTX		SHA1_CTX
Index: head/sys/netinet/tcp_subr.c
===================================================================
--- head/sys/netinet/tcp_subr.c
+++ head/sys/netinet/tcp_subr.c
@@ -1096,7 +1096,7 @@
 	/* Initialize the TCP logging data. */
 	tcp_log_init();
 #endif
-	read_random(&V_ts_offset_secret, sizeof(V_ts_offset_secret));
+	arc4rand(&V_ts_offset_secret, sizeof(V_ts_offset_secret), 0);
 
 	if (tcp_soreceive_stream) {
 #ifdef INET
@@ -2716,7 +2716,7 @@
 	if ((V_isn_last_reseed == 0) || ((V_tcp_isn_reseed_interval > 0) &&
 	     (((u_int)V_isn_last_reseed + (u_int)V_tcp_isn_reseed_interval*hz)
 		< (u_int)ticks))) {
-		read_random(&V_isn_secret, sizeof(V_isn_secret));
+		arc4rand(&V_isn_secret, sizeof(V_isn_secret), 0);
 		V_isn_last_reseed = ticks;
 	}