One-Time Key Generation System for Agent Data Protection

Jong-Youl PARK  Dong-Ik LEE  Hyung-Hyo LEE  Joong-Gil PARK  

Publication
IEICE TRANSACTIONS on Information and Systems   Vol.E85-D   No.3   pp.535-545
Publication Date: 2002/03/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8532
Type of Manuscript: PAPER
Category: Cooperation in Distributed Systems and Agents
Keyword: 
data integrity,  data confidentiality,  one-way hash,  coupler,  mobile agent,  

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Summary: 
This paper deals with security issues in a mobile agent system, especially protecting agent data from malicious servers. For this purpose, one-time key generation system, OKGS in short, is proposed. In OKGS, we integrate notions of an one-way hash function and a coupler. A one-way function plays a major role in ensuring confidentiality and integrity of agent data. And the notion of a coupler is used to establish inter-relationship among consecutive encryption keys for agent data, i.e,. all agent keys form a unidirectional chain. With these two features of OKGS, therefore, only the agent owner, who creates the agent bearing data, can decrypt and protect all agent data which are gathered in its itinerary.