Modeling Security Bridge Certificate Authority Architecture

Yizhi REN  Mingchu LI  Kouichi SAKURAI  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E92-A    No.6    pp.1544-1547
Publication Date: 2009/06/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E92.A.1544
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Cryptography and Information Security
PKI,  bridge certificate authority,  security,  

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Current Public Key Infrastructures suffer from a scaling problem, and some may have security problems, even given the topological simplification of bridge certification authorities. This paper analyzes the security problems in Bridge Certificate Authorities (BCA) model by using the concept of "impersonation risk," and proposes a new modified BCA model, which enhances its security, but is a bit more complex incertification path building and implementation than the existing one.