|
Due to the absence of OSI authentication standards and the limitations of Kerberos, a part of MIT's project Athena, in this thesis we propose a Security Service Element ( SSE ) inside the OSI Application layer as a new type of common ASE and develop a prototype system to simulate how an application process can obtain the authentication service. SSE has the following features : 1. It supports authentication for the OSI- based network environment. 2. It is transparent to users. 3. No synchronized clock is needed. 4. It provides a more secure key- protection mechanism.
|