diff -up ./src/ortp_srtp.c.rand ./src/ortp_srtp.c
--- ./src/ortp_srtp.c.rand	2019-12-11 10:54:32.761146535 -0500
+++ ./src/ortp_srtp.c	2019-12-11 10:57:50.095212431 -0500
@@ -272,7 +272,12 @@ static bool_t ortp_init_srtp_policy(srtp
 
 err_status_t ortp_crypto_get_random(uint8_t *tmp, int size)
 {
-	return crypto_get_random(tmp, size);
+        static int fd=-1;
+        if (fd==-1) fd=open("/dev/urandom",O_RDONLY);
+        if (fd!=-1) {
+                if (read(fd,tmp,size)==size) return err_status_ok;
+        } 
+	return -1;
 }
 
 srtp_t ortp_srtp_create_configure_session(enum ortp_srtp_crypto_suite_t suite, uint32_t ssrc, const char* snd_key, const char* rcv_key)