diff --git a/functions-common b/functions-common
index c096664..4e74f5a 100644
--- a/functions-common
+++ b/functions-common
@@ -695,6 +695,13 @@
     echo $host_ip
 }
 
+# Generates hex string from ``size`` byte of pseudo random data
+# generate_hex_string size
+function generate_hex_string {
+    local size=$1
+    hexdump -n "$size" -v -e '/1 "%02x"' /dev/urandom
+}
+
 # Grab a numbered field from python prettytable output
 # Fields are numbered starting with 1
 # Reverse syntax is supported: -1 is the last field, -2 is second to last, etc.