The systems environments of today are often distributed and heterogeneous. These kind of systems have several advantages but also disadvantages. One problem is how to keep them secure.
The security problems in these environments are mainly due to the communication between the connected computers. It is relatively easy to tap these communication channels from information. There is also a need for the possibility to secure these channels from modification of sent information and to be able to verify the sender and receiver of information in a secure manner. The whole system's security is depending on the security of these channels which means protecting them is critical.
The Department of Computer Science (DCS) at Högskolan i Skövde, Sweden has a distributed and heterogeneous systems environment with insecure communication channels. This final year project has investigated this security problem at DCS and developed a method to implement secure communication channels.