PassPattern system

PassPattern System (PPS) is a pseudodynamic password user authentication system, which is based on patterns. Unlike the other dynamic password-based systems, PassPattern System(PPS) [ [http://netlab.cs.iitm.ernet.in/pps PassPattern System, NETLAB, Indian Institute of Technology Madras] ] does not require any extra hardware, software or mathematical operations. The complete paper is available at Springer [ [http://www.springerlink.com/content/pvmmn1n134033kk3/ PassPattern System (PPS): A Pattern-Based User Authentication Scheme] ] .

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