diff --git a/src/bsp/lk/lib/libc/rand.c b/src/bsp/lk/lib/libc/rand.c
new file mode 100644
index 0000000..fe502c1
--- /dev/null
+++ b/src/bsp/lk/lib/libc/rand.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2008-2014 Travis Geiselbrecht
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <rand.h>
+#include <sys/types.h>
+
+static unsigned int randseed = 12345;
+
+void srand(unsigned int seed)
+{
+    randseed = seed;
+}
+
+void rand_add_entropy(const void *buf, size_t len)
+{
+    if (len == 0)
+        return;
+
+    uint32_t enp = 0;
+    for (size_t i = 0; i < len; i++) {
+        enp ^= ((enp << 8) | (enp >> 24)) ^ ((const uint8_t *)buf)[i];
+    }
+
+    randseed ^= enp;
+}
+
+int rand(void)
+{
+    return (randseed = randseed * 1664525 + 1013904223);
+}