Abstract—In recent years, group based applications and protocols have gradually gained popularity in term of data traffic distribution across a group of members. Since these applications typically involve communication over open networks, security has become an important requirement. Many group key management schemes have been suggested for provision of secrecy in a group communication. Nonetheless, little implementations have been carried out in actual wireless environment. This paper is focused to deploy a decentralized group key management scheme using Java 2 Mobile Edition (J2ME) platform for mobile devices and Java 2 Standard Edition (J2SE) platform for enabling the communication between key management servers and mobile devices. To evaluate the accuracy of the scheme, different aspects of it in particular the join and leave operations including updating key materials are then tested and discussed.