Abstract

A key management algorithm is presented in this paper. It is applied to secure transmission of user data between two peer layers of an open systems interconnection reference model architecture located at any source and destination end-user host systems. In particular, the algorithm (i) generates and distributes a session key between two peer layers during the connection establishment phase, (ii) encrypts and decrypts the user data, present in the protocol data unit, using the same session key during the data transfer phase, and (iii) after transmitting the user data, it destroys the session key during the connection release phase. For the purpose of simulation, the algorithm is shown applied between the transport service user and the provider, present at the source and the destination host systems, for secure transfer of transport service user data to the corresponding remote peer layer using the class 4 transport protocol of the OSI-RM architecture.

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