At Eurocrypt'91, Matsumoto and Imai presented a human identification scheme suitable for the human ability of memorizing and processing a short secret. It protects against an intruder peeping as a user enters authentication information on a terminal connected to the authentication server. In this paper several attacks will be discussed to investigate the security of their scheme. A modified scheme will be proposed to avoid these attacks.
All Science Journal Classification (ASJC) codes
- Theoretical Computer Science
- Hardware and Architecture
- Computational Theory and Mathematics